Solve for x for 0 ≤ x < 2 π .


cotxcosx - cotx = 0


0

Pi/2

Pi

3Pi/2

2Pi

Answers

Answer 1

[tex]\bf cot(x)cos(x)-cot(x)=0\implies cot(x)[cos(x)-1]=0 \\\\[-0.35em] ~\dotfill\\\\ cot(x)=0\implies \cfrac{cos(x)}{sin(x)}=0\implies cos(x)=0\\\\\\ x=cos^{-1}(0)\implies \boxed{x= \begin{cases} \frac{\pi }{2}\\\\ \frac{3\pi }{2} \end{cases}} \\\\[-0.35em] ~\dotfill\\\\ cos(x)-1=0\implies cos(x)=1\implies x=cos^{-1}(1)\implies \boxed{x=0}[/tex]

Answer 2

Answer:

x = π/2, 3π/2  

Step-by-step explanation:

cot(x)cos(x) - cot(x) = 0

Factor out cot(x)

cot(x)[cos(x) -1] = 0

Solve each part separately

cot(x) = 0                cos(x) - 1 = 0

x = π/2, 3π/2           cos(x) = 1

                                x = 0

There are three possible solutions:

x = 0, π/2, 3π/2

However, the function is undefined for x = 0.

x = π/2, 3π/2


Related Questions

What is the distance between the 2 points? ( use Pythagorean Theorem)

Answers

Answer:

  5

Step-by-step explanation:

The horizontal distance between the points is 3 units; the vertical distance is 4 units. The straight-line distance is the length of the hypotenuse of a right triangle with those side lengths. So, the distance between the two points is ...

  √(3² +4²) = √(9+16) = √25 = 5 . . . . units

_____

Comment on this triangle

The numbers 3, 4, 5 are the smallest set of integers that satisfy the relation of the Pythagorean theorem. They are also the only set of sequential numbers or numbers in arithmetic sequence that satisfy the Pythagorean theorem. As a consequence, they show up often in geometry and algebra problems. The "3-4-5 triangle" is worth remembering. So, anytime you see numbers that have these ratios, such as 9, 12, 15, for example, you know they can be the sides of a right triangle.

The number 400 is increased by 75%. The result is then decreased by 50%. What is the final number?

Answers

Answer:150

Step-by-step explanation:75 on 100 multiply by 400 u will get 300.then 50 on 100 multiply 300 .your answer is 150.check???

Answer:

150.

Step-by-step explanation:

a scientist is growing bacteria in a lab for study one particular type of bacteria grows at a rate of y=2t^2+3t+500 a different bacteria grows at a rate of y=3t^2+t+300 in both of these eqiations y is the number of bacteria after t minutes when is there an equal number of both types of bacteria

Answers

ANSWER

t=15 minutes.

EXPLANATION

The equation that models the growth rate of the first type of bacteria is,

[tex]y = 2 {t}^{2} + 3t + 500[/tex]

The growth rate of a second type of bacteria is modeled by:

[tex]y = 3 {t}^{2} + t + 300[/tex]

Since y is the number of bacteria after t minutes in both equations, we equate both equations to find the time when there is an equal number of both types of bacteria.

[tex]3 {t}^{2} + t + 300 = 2 {t}^{2} + 3t + 500[/tex]

We rewrite as standard quadratic equation,

[tex]3 {t}^{2} - 2 {t}^{2} + t - 3t + 300 - 500 = 0[/tex]

[tex] {t}^{2} - 2t - 200 = 0[/tex]

We use the quadratic formula to obtain,

[tex]t = \frac{ - - 2 \pm \sqrt{ {( - 2)}^{2} - 4(1)( - 200) } }{2(1)} [/tex]

[tex]t = \frac{ -2 \pm \sqrt{ 804} }{2} [/tex]

[tex]t = \frac{ -2 \pm 2\sqrt{ 201} }{2} [/tex]

[tex]t = 1 - \sqrt{201} \: or \: t = 1 + \sqrt{201} [/tex]

t=-13.177 or t=15.177

We discard the negative value. Hence there is an equal number of both types of bacteria after approximately 15 minutes.

Please help me with this...

Answers

3x+4=5x-50

54=2x

27=x

Answer:

x = 27

Step-by-step explanation:

The diagonals of a rectangle are congruent, hence

BD = AC ← substitute values

5x - 50 = 3x + 4 (subtract 3x from both sides )

2x - 50 = 4 ( add 50 to both sides )

2x = 54 ( divide both sides by 2 )

x = 27

2)Explain how the letter x is used when writing expressions, and give an example.

Answers

Answer:

x + y = z

y=5

z=10

x = z - y =10-5 =5

Step-by-step explanation:

Darren kept track of the number of e-mails he received from one of his customers each day for 14 days on the dot plot. Which statement must be true according to the dot plot?


The data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.


The data is skewed left and shows that on half of the days, Darren received 7 to 9 e-mails from the customer.


The data is skewed right and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.


The data is skewed right and shows that on half of the days, Darren received 7 to 9 e-mails from the customer.

Answers

Answer: A. The data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.

Step-by-step explanation: Most of the Data is on the right so it is skewed left, and most of the emails are on 11 and 12 so that is why A is correct.

Find the Maclaurin series for f(x) using the definition of a Maclaurin series. [Assume that f has a power series expansion. Do not show that Rn(x) → 0.] f(x) = 5(1 − x)−2 f(x) = ∞ n = 0 Find the associated radius of convergence R. R =

Answers

We can use the fact that, for [tex]|x|<1[/tex],

[tex]\displaystyle\frac1{1-x}=\sum_{n=0}^\infty x^n[/tex]

Notice that

[tex]\dfrac{\mathrm d}{\mathrm dx}\left[\dfrac1{1-x}\right]=\dfrac1{(1-x)^2}[/tex]

so that

[tex]f(x)=\displaystyle\frac5{(1-x)^2}=5\frac{\mathrm d}{\mathrm dx}\left[\sum_{n=0}^\infty x^n\right][/tex]

[tex]f(x)=\displaystyle5\sum_{n=0}^\infty nx^{n-1}[/tex]

[tex]f(x)=\displaystyle5\sum_{n=1}^\infty nx^{n-1}[/tex]

[tex]f(x)=\displaystyle5\sum_{n=0}^\infty(n+1)x^n[/tex]

By the ratio test, this series converges if

[tex]\displaystyle\lim_{n\to\infty}\left|\frac{(n+2)x^{n+1}}{(n+1)x^n}\right|=|x|\lim_{n\to\infty}\frac{n+2}{n+1}=|x|<1[/tex]

so the series has radius of convergence [tex]R=1[/tex].

Final answer:

The Maclaurin series for the function 5(1 − x)⁻² is obtained by applying the binomial series theorem, resulting in the series: 5*(1 + 2x - 2 + 3x² - 3x + 4x³ - 4x² + ...). The radius of convergence for the series is 1.

Explanation:

The function given is f(x) = 5(1 − x)−2. The Maclaurin series of a function f is the expression of that function as an infinite sum of terms calculated from the values of its derivatives at a single point. Here, we can use the binomial theorem as a starting point. It states that (1+x)ⁿ = 1 + nx + (n(n-1)/2!)x² + ..., where n is a real number and -1

Now, f(x) is similar to the binomial series: if we let n=-2, and x become -(x-1), we have f(x) = 5(1 – x)⁻² = 5*(1 + 2(x-1) + 3*(x-1)² + 4*(x-1)³ + ...)

So the Maclaurin series for the function is: 5*(1 + 2x - 2 + 3x² - 3x + 4x³ - 4x² + ...). The next step is to find the radius of convergence. The series has a radius of convergence R such that for all x in the interval -R

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(a) What is the difference between a sequence and a series? A sequence is an unordered list of numbers whereas a series is the sum of a list of numbers. A series is an unordered list of numbers whereas a sequence is the sum of a list of numbers. A sequence is an ordered list of numbers whereas a series is an unordered list of numbers. A series is an ordered list of numbers whereas a sequence is the sum of a list of numbers. A sequence is an ordered list of numbers whereas a series is the sum of a list of numbers. (b) What is a convergent series? What is a divergent series? A series is convergent if the nth term converges to zero. A series is divergent if it is not convergent. A series is convergent if the sequence of partial sums is a convergent sequence. A series is divergent if it is not convergent. A series is divergent if the sequence of partial sums is a convergent sequence. A series is convergent if it is not divergent. A convergent series is a series for which lim n → ∞ an exists. A series is convergent if it is not divergent. A series is divergent if the nth term converges to zero. A series is convergent if it is not divergent.

Answers

Answer:

a) A sequence is an ordered list of numbers whereas a series is the sum of a list of numbers; b) A series is divergent if it is not convergent. A series is convergent if the sequence of partial sums is a convergent sequence.

Step-by-step explanation:

A sequence is a pattern.  It is an ordered list of objects, such as numbers, letters, colors, etc.

A series is a sum of a sequence.

A divergent series is one that is not convergent.

A convergent series is one in which the sequence of partial sums approaches a limit; this means the partial sums form a convergent sequence.

A baseball infield is in the shape of a square within the bases and home plate. The area of the infield is 8,100 square feet. What is the length of one side of the infield?

Answers

A = s^2. For a square
8100 = s^2. Take square root of each side
S = 90

Need help ASAP!!

A triangle has side lengths of 34 in., 20 in., and 47 in. Is the triangle acute, obtuse or right?
A. right
B. obtuse
C. acute

For the answer I got B. obtuse. Is it correct?

16. A triangle has side lengths of 1.2, 4.6 and 5. Determine if the triangles is Acute, Obtuse, or Right.

For the answer I got Acute. Is it correct?

17. Find the value of x.

Picture 1 is my work for number 11.
Picture 2 is my work for number 16.
Picture 3 is what I need to use to solve for x.

Answers

Answer:

1. B (obtuse)

2. Obtuse

3. 20.92

Step-by-step explanation:

1.

We need to use the converse of the pythagorean theorem to solve this problem. Given that c is the longest side of a triangle, and a and b are the other two sides. The triangle is right triangle if  [tex]c^2=a^2 +b^2[/tex]

The triangle is acute triangle if  [tex]c^2 < a^2 + b^2[/tex]

The triangle is obtuse triangle if  [tex]c^2 > a^2 + b^2[/tex]

the longest side of this triangle is 47, so we check:

[tex]47^2=2209[/tex], and

[tex]34^2 + 20 ^2 =1556[/tex]

Hence, c^2 is GREATER than a^2 + b^2, so the triangle is obtuse.

2. Using the points we showed above, we can again summarize:

If  [tex]c^2 = a^2 + b^2[/tex]  --  Right Triangleif  [tex]c^2 < a^2 + b^2[/tex]  --  Acute Triangleif  [tex]c^2 > a^2 + b^2[/tex]  -- Obtuse Triangle

This triangle's c (longest side) is 5. Let's check:

5^2 = 25, and

[tex](1.2)^2 + (4.6) ^2=22.6[/tex]

Hence, c^2 is GREATER than a^2 +b^2, so the triangle is obtuse.

3.

The side opposite of the 90 degree angle is the "hypotenuse", that is x. The side opposite the 35 degree angle is "opposite" side.

The trigonometric ratio that related "opposite" side to "hypotenuse" side is SINE. So we can write:

[tex]Sin(35)=\frac{Opposite}{Hypotenuse}\\Sin(35)=\frac{12}{x}[/tex]

Now, cross multiplying and solving:

[tex]Sin(35)=\frac{12}{x}\\x*Sin(35)=12\\x=\frac{12}{Sin(35)}\\x=20.92[/tex]

Final answer:

The first triangle is obtuse since the square of the longest side is greater than the sum of the squares of the other sides. The second triangle is acute since the square of the longest side is less than the sum of the squares of the other sides. Both answers provided are correct.

Explanation:

To determine the type of triangle (acute, obtuse, or right) based on the side lengths, you can apply the Pythagorean theorem. For the triangle with side lengths of 34 in., 20 in., and 47 in., you compare the square of the largest side (472) with the sum of the squares of the other two sides (342 + 202). If the square of the largest side is greater, the triangle is obtuse. Calculating gives us 2209 (472) and 1556 (342) + 400 (202), equaling 1956, thus 2209 > 1956 and the triangle is indeed obtuse. Your answer is correct.

For the second triangle with side lengths of 1.2, 4.6, and 5, we again apply the Pythagorean theorem. If the square of the largest side (52) is equal to the sum of the squares of the other two sides (1.22 + 4.62), the triangle is right. If it’s less, the triangle is acute.

Calculating gives us 25 (52) and 1.44 (1.22) + 21.16 (4.62), equaling 22.60, thus 25 > 22.60 and the triangle is acute. Your answer is correct.

Which expression is equivalent to 56 + 21? 7(49 + 14) 8(7 + 21) 8(48 + 13) 7(8 + 3)

Answers


The correct answer is D. 7(8+3)
Use the distributive property.
7*8=56
7*3=21
56+21
Hope this helps!

Answer:

d 7(8 + 3)

Step-by-step explanation:

What is the standard form of the equation for this circle?
A. -(x – 1)2 – (y + 10)2 + 4 = 0
B. (x – 1)2 – (y + 10)2 = 2
C. (x + 1)2 + (y – 10)2 = 4
D. (x – 1)2 – (y + 10)2 = 4

A (-1, 10)
Radius 2

Answers

Answer:

C

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h. k) are the coordinates of the centre and r is the radius

here (h, k) = (- 1, 10) and r = 2, thus

(x - (- 1))² + (y - 10)² = 2², that is

(x + 1)² + (y - 10)² = 4 → C

LAST QUESTION PLEASE HELP ME

Answers

Answer:

y = 3x^2 + 1/3

Step-by-step explanation:

The first step is the easiest. Find the value of c. That means that all you are left with is c and y because x and a disappear when x = 0.

y = ax^2 + c

Givens

x = 0y = 1/3

Solution

1/3 = a(0)^2 + c

1/3 = 0 + c

c = 1/3

Second Given

x = - 3y = 82/3

Second Solution

82/3 = a*(-3)^2 + 1/3            Subtract 1/3 from both sides

82/3 - 1/3 = a*(9) + 1/3 - 1/3

81/3 = 9a                              Reduce the left

27 = 9a                                Divide by 9

27/9 = a

3 = a

Answer

y = 3x^2 + 1/3

Please help me with this problem.

Answers

Answer:

Step-by-step explanation:

It would help you if you drew charts of what is happening. The red tank is loosing volume. It's chart is on the left.

The blue tank is gaining water (the same amount as the red is loosing)

The red graph is the red tank.

The blue graph is the blue tank.

All  you really have to understand is the the slopes (3 and - 3) and the same numerically and the rates are the same numerically. So the negative slope means loose. and the positive slope (blue) gains.

The graphs have to start somewhere. You can't make a graph like one without a starting point.

The blue container starts at 0,0. I think that's easy enough to understand. At the beginning of your experiment, the blue container is empty.

The red container starts (arbitrarily) at 3 (the y intercept).  It is just a number. It means that the red container starts with 3 gallons.

Neither graph should go into a negative region. I don't know how to make desmos not go into a negative region. Just block them out in your mind. Everything should take place in quadrant 1 bound by the +x and + y axis.

5x=-15x+3000 simplify step by step

Answers

The answer is 150 to this question

What is the value of 6x squared+ 4x + 8 when x=7? Please answer this I really need help!

Answers

Let’s write it simply, that helps us solve it easier.
6x^2+4x+8
Now, insert 7 in place of x.
6(7)^2+4(7)+8
Now, multiply.
42^2+28+8
Solve for exponents.
1,764+28+8
Add.
1,792+8
1,800
Hope this helps!

Sammy's dog eats 3/4 cup of food at each meal. His cat eats 1/8 of what the dog eats. What fraction of a cup does his cat eat?

Answers

Answer:

3/32 of a cup of food

Step-by-step explanation:

Sammy's dog eats 3/4 cup of food at each meal. His cat eats 1/8 of that.

This comes out to (1/8)th of (3/4 cup), or:

 1        3

----- · ----- cup  =  3/32 cup

  8      4

The cat eats 3/32 of a cup of food.

Final answer:

Sammy's cat eats 3/32 cup of food per meal, which is calculated by multiplying the dog's portion, 3/4 cup, by 1/8.

Explanation:

Solving the question involves a basic understanding of fractional multiplication. Since Sammy's cat eats 1/8 of what the dog eats, we calculate the cat's portion by multiplying the dog's portion by 1/8.

Sammy's dog eats 3/4 cup of food at each meal. To find out what fraction of a cup Sammy's cat eats, we multiply 3/4 by 1/8.

Here's the calculation: 3/4 × 1/8 = 3/32

Therefore, Sammy's cat eats 3/32 cup of food at each meal.

Find the length of the missing side. the triangle not drawn to scale. (Image attached)
Will give BRAINLIEST to the first person to answer correctly and show your work please :))

Answers

Answer: 8

Step-by-step explanation:

 The triangle shown in the image attached is a right triangle.

Therefore, to calculate the missing lenght of the triangle you can apply the Pythagorean Theorem, which is shown below:

[tex]a^2=b^2+c^2[/tex]

Where a is the hypotenuse and b and c are the legs.

The problem gives you the value of the hypotenuse and the value of one leg. Therefore, you must solve for the other leg from [tex]a^2=b^2+c^2[/tex], as following:

[tex]17^2=15^2+c^2\\c=\sqrt{17^2-15^2}\\c=8[/tex]

Therefore, the lenght of the missing side is: 8

Answer:

The value of third side= 8 units

Step-by-step explanation:

It is given a right angled triangle with base = 15 and hypotenuse = 17

We have to find the height of given triangle.

Points to remember

By Pythagorean theorem

Base² + Height² = Hypotenuse²

To find the third side

Here base = 15 and hypotenuse = 17

We have,

Base² + Height² = Hypotenuse²

Height² = Hypotenuse² - Base² = 17² - 15² = 64

Height = √64 = 8 units

Therefore the value of third side = 8 units

please help me out...........

Answers

Answer:

N(c, b)

Step-by-step explanation:

If N is midpoint between Q and R, then use the formula of a midpoint:

[tex]\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)[/tex]

We have the points Q(0, 2b) and R(2c, 0). Substitute:

[tex]x=\dfrac{0+2c}{2}=\dfrac{2c}{2}=c\\\\y=\dfrac{2b+0}{2}=\dfrac{2b}{2}=b[/tex]

Tell whether this set of numbers is a Pythagorean Triple. (15, 20, 25). Yes or no?

Answers

Yes this meets the Pythagorean triple. They are the (3,4,5) triple all just multiplied by 5.

If cos x = 2 / 3 and x is in quadrant 4, find:

a. sin(x / 2)

b. cos(x / 2)

c. tan(x / 2)

Answers

Answer:

A

Step-by-step explanation:

cos(x)=2/3 in Q 4

sin(x/2)=+√(1-cos(x))/2

√(1-cos(x))/2=√(1-[2/3]/2=√(1/3)/2=-√(1/6) because sin is negative in Q 4

Answer:

See below.

Step-by-step explanation:

Because cos x = 2/3 the adjacent side = 2 and hypotenuse = 3 so the length of the opposite side =  

√(3^2 - 2^2) =  -√5 (its negative because we are in Quadrant 4).

So sin x =  -√5/3.

(a) sin (x /2) =  - √ [ (1 - cos x)/2 ]

= -√(1 - 2/3)/ 2)

= -√(1/6).  or -0.4082.

(b)  cos (x/2)  = √ [ (1 + cos x)/2]

=  √ 5/6 or 0.9129.

(c)   tan (x /2) =   ( 1 - cos x) / sin x.

=  ( 1 - 2/3) /   -√5/3

= -0.4472.


HELP WILL PICK BRAINLIEST!
Choose the correct domain for f(x) = ex -2
(-∞,∞)
(0,∞)
[0,∞)
(-∞,0)

Answers

Answer:

The function has no undefined points nor domain constraints, therefore the Domain is (-∞ < x < ∞). Since your answers don't match the real results, the interval notation is (-∞,∞)

Step-by-step explanation:

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = ln(x2 + 2x + 4), [−2, 2] Step 1 The absolute maximum and absolute minimum values of the function f occur either at a critical number or at an endpoint of the interval. Recall that a critical number is a value of x where f '(x) = 0 or where f '(x) doesn't exist. We begin by finding the critical numbers. f '(x) =

Answers

[tex]f(x)=\ln(x^2+2x+4)\implies f'(x)=\dfrac{2x+2}{x^2+2x+4}[/tex]

The numerator determines where the derivative vanishes (the denominator has a minimum value of 3, since [tex]x^2+2x+4=(x+1)^2+3\ge3[/tex]).

[tex]2x+2=0\implies x=-1[/tex]

At this critical point, we have

[tex]f(-1)=\ln((-1)^2+2(-1)+4)=\ln3\approx1.099[/tex]

At the endpoints, we have

[tex]f(-2)=\ln4\approx1.386[/tex]

[tex]f(2)=\ln12\approx2.485[/tex]

so [tex]f[/tex] attains a maximum value of [tex]\ln12[/tex] and a minimum value of [tex]\ln3[/tex].

Final answer:

The absolute minimum of the function f(x) = ln(x2 + 2x + 4) is at x=-2 where the value is ln(4) and the absolute maximum is at x=2 where the value is ln(8). There are no critical numbers within the selected interval.

Explanation:

The given function is

f(x) = ln(x

2

+ 2x + 4)

, for which we need to find the absolute maximum and minimum in the interval [-2, 2]. Firstly, we find the derivative of the function:

f '(x) = (2x + 2) / (x

2

+ 2x + 4)

. To find the critical points, we set the derivative equal to zero and solve for x, finding no real solutions, indicating there are no critical numbers within the given interval. Thus, the extrema must occur at the endpoints. So, we find f(-2) = ln(4) and f(2) = ln(8).

The absolute minimum is ln(4) at x = -2 and the absolute maximum is ln(8) at x = 2

.

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Mateo wants to make a toy sailboat. He has two pieces of wood to choose from.
His first piece of wood is a block that measures 18'' x 10" x 8". It weighs 46.65 lbs.
His second piece of wood is a log of wood measuring 21" long, with an average circumference of 25.12". It weights 39.25 lbs.
The sailboat needs to float, but both blocks of wood are denser than wood usually is, and he's not sure either piece of wood will float. He doesn't want to get the water wet before he's applied a sealant, so he isn't willing to just drop them in the water to find out.
2a. Which common solid can he use to represent the block? Which common solid can he use to represent the log? (2 points)
2b. What is the density of the block in pounds per cubic inch? Give the formula for density and show your work. (3 points)
2c. What is the density of the log in pounds per cubic inch? Give the formula for density and show your work. Use 3.14 for π. (Hint: you can determine the radius from the circumference.) (3 points)
2d. Water has a density of about 0.0361 pounds/cubic inch. Anything rarer will float, and anything denser will sink. Which of the pieces of wood are suitable for making a toy boat that will float? (2 points)

Answers

Answer:

wut is it

Step-by-step explanation:

dish television charges a one-time installation fee and a monthly service charge. The total cost is modeled by the equation y=120+75x.


The total cost is represented by:


The number of months is represented by:


The installation fee is:


the monthly charge is:

Answers

y = 120 + 75x

y is total charge

75x where 75 is monthly charge and x is number of months

120 is installation charges.

Dish television charges modeled by the equation represents,

a) The total cost is represented by variable y.b) The number of months is represented by is represented by variable x.c) The installation fee is represented by constant 120.d) The monthly charge is represented by coefficient 75.

What is linear equation ?

Linear equation is the equation in which the highest power of the unknown variable is one. Linear equation are used to model the real life problem in the mathematical expressions.

The linear equation with dependent variable y and independent variable x can be written as,

[tex]y=mx+c[/tex]

Here,  [tex]m[/tex] is the slope of the equation and [tex]c[/tex] is the y intercept.

Given information-

The total cost is modeled by the equation

[tex]y=120+75x[/tex]

In the above equation the, variable y is dependent variable and the variable x is independent variable. The constant term 120 is fixed.

a) The total cost is represented by-As the total cost is the overall cost of the dish television. This is shown by the dependent variable y, which given the final value of cost. Thus the total cost is represented by variable y.

b) The number of months is represented by-The independent variable x represent the number of months.

c) The installation fee is- As the one time installation fee is fixed which does not vary. Thus the constant 120 represent the installation fee.

d) The monthly charge is-The monthly charge is written with independent variable y. Thus,The monthly charge is represented by coefficient 75.

Hence,

a) The total cost is represented by variable y.b) The number of months is represented by is represented by variable x.c) The installation fee is represented by constant 120.d) The monthly charge is represented by coefficient 75.

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The red object below, is best defined as a

Answers

Answer:

Where is the red object?

Step-by-step explanation:

I CANT SEE THE RED OBJECT U DIDNT PUT ITTT

A counterexample for the expression sin y tan y= cos y is 0.

Answers

Answer:

True

Step-by-step explanation:

To answer this question we must evaluate

y = 0° on both sides of the equation.

For the left side we have:

[tex]sin(0\°) tan(0\°)[/tex]

We know that [tex]tan(0\°) =\frac{sin(0\°)}{cos(0\°)}[/tex]

We know that [tex]cos(0\°) = 1[/tex] and [tex]sin(0\°) = 0[/tex].

Therefore [tex]tan(0\°) = 0[/tex].

Then the left-hand side of the equals is equal to zero.

On the right side we have:

[tex]cos(y)[/tex]

When evaluating [tex]cos(y)[/tex] at [tex]y = 0[/tex]

We have to [tex]cos(0\°) = 1[/tex].

0 ≠ 1

The equation is not satisfied. Therefore y = 0 ° is a counterexample to the equation

Answer:true

Step-by-step explanation:

edge

Theres 5 boxes of candle. One box has 16 candles Four boxes has 24 candles each How many candles do the five boxes have altogether?

Answers

Answer:

 112 candles

Step-by-step explanation:

We can simply add up the 5 numbers of candles, or we can take advantage of the invention of multiplication to replace repeated addition. The number of candles altogether is the sum of the numbers of candles in each of the 5 boxes.

  16 + 4×24 = 16 +96 = 112

The total number of candles is 112.

Use a graphing calculator, or another piece of technology, to find the zeros of the function f(x)=−2x3+5x2+1.

What are the approximate zeros to the nearest tenth?

There may be more than one correct answer. Select all correct answers.

x≈0.2
x≈−0.2
x≈−2.58
x≈1.7
x≈2.58
x≈−1.7

Answers

The answer is 2.58

See attached picture of graph with the solution:

Final answer:

The approximate zeros of the function f(x)=-2x^3+5x^2+1, to the nearest tenth, are x ≈ 0.2, x ≈ -2.58, and x ≈ 1.7.

Explanation:

To find the zeros of the function f(x)=−2x3+5x2+1, one uses a graphing calculator or similar piece of technology. After entering this function and graphing it, you locate the points where the curve intersects the x-axis. These points are the function's zeros or roots, as the function equals zero at these x-values.

For the function given, the zeros are approximately x ≈ 0.2, x ≈ -2.58, and x ≈ 1.7 when rounded to the nearest tenth. These values represent the x-coordinates of the points where the graph of the function intersects the x-axis.

Please note that because we're rounding to the nearest tenth, the actual zero could slightly differ.

Learn more about Zeros of a function here:

https://brainly.com/question/31654173

#SPJ3

Can someone help me with the First question ?

Answers

Answer:

Step-by-step explanation:

#1.

228 ÷ 6 = 38 in

#2.

186 ÷ 3 = 62 ft

#3.

360 ÷ 8 = 45 yd

#4.

119 ÷ 7 = 17 ft

I hope I helped you.

Answer:

Perimeter is the total outside dimension.

To find the length of one side, divide the total perimeter by the number of sides.

1. 228 / 6 = 38 inches.

2. 186 / 3 = 62 feet.

3. 360 / 8 = 45 yards

4. 119 / 7 = 17 feet.

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