Select all the correct answers
Which equations have a lower unit rate than the rate represented in this table?

1/3 = 33%

33% * 390 = 118.8

Your answer 118.8 degrees

Answer: 120 degrees

Step-by-step explanation:

Just did it.

Answer:

2/5

Step-by-step explanation:

There are 10 marbles and 4 of them are purple. That would give you the fraction 4/10. 4/10 can be simplified to 2/5. So, you have a 2/5ths chance of choosing a purple marble.

The probability of selecting a purple marble from a bag containing 10 marbles, 4 of which are purple, is 2/5.

The question asks: "A bag contains 10 marbles. Four of the marbles are purple. What is the probability you will choose a purple marble from the bag?" To find the probability, you divide the number of favorable outcomes (choosing a purple marble) by the total number of outcomes (all the marbles in the bag). Here, there are 4 purple marbles and 10 marbles in total.

The probability is therefore 4/10, which can be simplified to 2/5. So, the probability of choosing a purple marble from the bag is 2/5.

0.5 as a percent is 50%

0.5 to a percent value is 50%

14+38=52

52-38= 14

Answer: 38 and 14.

I think this is the answer.

33 and 19

33+19=52

33-19=14

Answer:

C. (5, -2)

Step-by-step explanation:

Midpoint:

x = (x1+x2)/2 = (16-6)/2 = 10/2 = 5

y = (y1+y2)/2 = (5 - 9)/2 = -4/2 = -2

Answer

Midpoint (5, -2)

The midpoint of the graphed line segment is (5, -2)

The correct option is C) (5, -2).

The midpoint formula is expressed as;

Midpoint = ( ( x₁+x₂ )/2, ( y₁+y₂ )/2 )

From the graph:

Point 1 (16, 5)

x₁ = 16

y₁ = 5

Point 2 (-6,-9)

x₂ = -6

y₂ = -9

Plug the coordinates into the above formula and solve for the midpoint:

Midpoint = ( ( x₁+x₂ )/2, ( y₁+y₂ )/2 )

Midpoint = ( ( 16+(-6) )/2, ( 5+(-9) )/2 )

Midpoint = ( ( 16 - 6 )/2, ( 5 - 9 )/2 )

Midpoint = ( 10/2, -4/2 )

Midpoint = ( 5, -2 )

Therefore, the midpoint is (5, -2).

Option C) (5, -2) is the correct answer.

Learn more about the midpoint formula here: https://brainly.com/question/28577846

#SPJ3

Answer:

The range is 19

Step-by-step explanation:

First, you have to order the numbers from least to greatest:

-9.5, -3.1, 3.1, 3.2, 4.7, 4.9, 5.4, 6.3, 9.5

Then, you have to find the difference between the largest number and and smallest number. You do this by subtracting them:

9.5 - (-9.5)= 19

So, the range is 19

Answer:

The equation [tex]y=x^2+1[/tex] will be a parabola when it is graphed

Answer:

It's a parabola

Step-by-step explanation:

The equation seems to a parabolic function. The parabola is defined as:

[tex]y=Ax^2+b[/tex]

where b is a displacement, we can notice that in our case A=1 and b=1

so it is a parabola with a vertical displacement of one unit.

Answer:

D

Step-by-step explanation:

Value of the function [tex]\lim_{x \to 4} \dfrac {g}{h}(x)[/tex] is zero.

Correct option is b.

Limits are defined as values ​​to which the function approximates the output for given input values. The limit is the unique real numbers. Given a real-valued function "f" and a real number "c", the limit is usually defined as [tex]\lim_{x \to c} f(x) = L[/tex]. We read that "the limit of f of x is equal to L as x approaches c". "lim" represents the limit, and the right arrow indicates that the function f(x) approaches the limit L as x approaches c.

Given functions,

[tex]\lim_{x \to 4} f(x) = 5 , \lim_{x \to 4} g(x) = 0, \lim_{x \to 4} h(x) = -2[/tex]

[tex]=\lim_{x \to 4} \dfrac {g}{h}(x)[/tex]

[tex]=\lim_{x \to 4} \dfrac {g(x)}{h(x)}[/tex]

[tex]=\dfrac{\lim_{x \to 4} g(x)} {\lim_{x \to 4} h(x)}[/tex]

= 0/-2

= 0

Hence, 0 is the value of function [tex]\lim_{x \to 4} \dfrac {g}{h}(x)[/tex] .

Learn more about limit here:

https://brainly.com/question/12207539

#SPJ2

Answer:

Step-by-step explanation:

First we calculate (-3)÷10 = -0.3

Then 12÷(-0.3) = -40

After that -4 + (-40) = -44

3(-2) = -6

Finally -44 + (-6) = -50

For this case we have that the order of algebraic operations is determined by PEMDAS:

P: Perform any calculation inside the parentheses, making the most internal ones first.

E: Simplify any exponential expressions.

MD: Do all the multiplications and divisions, from left to right, as they appear.

AS: Do all the addition and subtraction, from left to right, as they appear.

Then, we have the following expression:

-4 + 12 ÷ (-3) ÷ 10 + 3 (-2) =

-4-4 ÷ 10 + 3 (-2) =

-4-0.4 + 3 (-2) =

-4-0.4-6 =

-4.4-6 =

-10.4

Answer:

-10.4

2, -1. I think, possibly.

Answer:

3, -1

Step-by-step explanation:

Answer:

-5

Step-by-step explanation:

A line that is parallel to another line must have the same slope.

Answer:

-5

Step-by-step explanation:

Parallel lines all have the same slope (as each other). Both of the parallel lines you are describing have a slope of -5.

(9 x 100) + (5 x 0.1)

OR

900 + .5

Nine hundred and five tenths

Hope this helped!

Hello!

-EXPANDED FORM- To make the number 900.5 in expanded form, We use 900 and then add 0.5 which is also 1/2.

-WORD FORM- To make the number 900.5 in word form, the answer would be nine hundred and five tenths

Answer:

See attachment

Step-by-step explanation:

The given function is [tex]y=\cos x +3[/tex]

The base function is [tex]y=\cos x[/tex]

The single transformation applied to this function is a vertical upward shift by 3 units.

Therefore the graph of  [tex]y=\cos x +3[/tex] is graph of  [tex]y=\cos x [/tex] shifted up 3 units.

See attachment

Answer: B

Step-by-step explanation:

Just did the test on edge

Answer:

[tex]g(x)=x^2-x[/tex]

Step-by-step explanation:

Given function is [tex]F\left(x\right)=x^2+3x+2[/tex].

Function [tex]F\left(x\right)=x^2+3x+2[/tex] is shifted 2 units right and gives result to a new function g(x).

Now we need to find about what is the equation of g(x).

We know that f(x-h) indicates right shift by "h" units.

So to get 2 units shift, replace x by (x-2) into given function

[tex]g(x)=F\left(x-2\right)[/tex]

[tex]g(x)=(x-2)^2+3(x-2)+2[/tex]

[tex]g(x)=x^2-4x+4+3x-6+2[/tex]

[tex]g(x)=x^2-x[/tex]

Hence final answer is [tex]g(x)=x^2-x[/tex].

ANSWER

[tex]b \geqslant - 18[/tex]

EXPLANATION

The given inequality is:

[tex] - 18 \leqslant b[/tex]

We can rewrite this as:

[tex]b \geqslant - 18[/tex]

The above two inequalities have the same meaning.

Reading from right to left, the first inequality says, "b is greater than or equal to negative 18."

Reading from left to right, the second inequality says, "b is greater than or equal to negative 18."

Therefore the two inequalities have the same meaning.

Step-by-step Answer:

Many inequalities are possible, for example:

Keeping the less than or equal to sign, we could write

-18-b<=0

or, switching sides,

b>= -18   (just by switching sides)

b+18>=0  (by transposing -18 to the left)

Then again, we can multiply both sides by -1, but we need to change the direction of the inequality:

18>=-b

or equivalently, by transposing 18 to the other side

0>=-b-18

and similarly

b+18>=0  (we already had this above)

Guess time to stop!

Answer:

Plan A:

C = $80

C = cost

Plan B:

C = 0.15t + 20

C = cost; t = amount of text messages

Step-by-step explanation:

Let C = cost.

Let t = amount of text messages.

Plan A:

C = $80

Plan B:

C = 0.15t + 20

If the next question asks for you to solve when Plan B will be equal to Plan A, set the two equations equal to each other.

80 = 0.15t + 20

Isolate the variable, t. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 20 from both sides.

80 (-20) = 0.15t + 20 (-20)

80 - 20 = 0.15t

60 = 0.15t

Divide 0.15 from both sides.

(60)/0.15 = (0.15t)/0.15

60/0.15 = t

t = 400

Those who use Plan B must send at least 400 text message to have the same price as Plan A.

~

Answer:

the answer is 3

Step-by-step explanation:

21/8 simplify is 3

Yeah, The answer is 3

Your answer is D. (4,3)

ANSWER

D(4,3)

EXPLANATION

The endpoints of AB have the coordinates A(9, 8) and B(-1, -2).

To calculate the coordinates of the midpoint of AB, we use the midpoint formula,

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

We substitute the coordinates of the endpoints into the formula to get,

[tex]( \frac{9+ - 1}{2},\frac{8+ - 2}{2} )[/tex]

[tex]( \frac{8}{2},\frac{6}{2} )[/tex]

We simplify further to obtain,

[tex]( 4,3)[/tex]

Answer: Second Option

{x| x< -3 ∪ x > 3}

Step-by-step explanation:

To solve the inequality

[tex]| x | >3[/tex] there are two cases:

Case 1.   [tex]x>0[/tex]

[tex]x > 3[/tex]

Case2. [tex]x<0[/tex]

[tex]-x > 3[/tex]

[tex]x < -3[/tex]

The final solution is the union of the solution of each case

This is:

[tex]x < -3[/tex] or [tex]x > 3[/tex]

{x| x< -3 ∪ x > 3}

ANSWER

A.) The graph of f(x) is horizontally compressed.

EXPLANATION

The given absolute value function is

[tex]f(x) = - 6 |x + 5| - 2[/tex]

The parent function is

[tex]y = |x| [/tex]

Since the factor -6 has an absolute value greater than 1, the graph of the given function will be narrower than the graph of the base function.

Hence the graph is horizontally stretched by a factor of 6.

The graph opens downwards because of the negative sign.

It has vertex at (-5,-2)

Answer:

[tex]\large\boxed{y=-\dfrac{1}{2}x+\dfrac{3}{2}}[/tex]

Step-by-step explanation:

[tex]\text{Let}\ k:y=_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\============================\\\\\text{We have}\ 2x-y=5.\\\\\text{Convert to the slope-intercept form y = mx + b:}\\\\2x-y=5\qquad\text{subtract 2x from both sides}\\\\-y=-2x+5\qquad\text{change the signs}\\\\y=2x-5\to m_1=2\\\\\text{Therefore}\ m_2=-\dfrac{1}{2}.[/tex]

[tex]\text{The equation of the searched line:}\ y=-\dfrac{1}{2}x+b.\\\\\text{The line passes through }(3,\ 0).\\\\\text{Put the coordinates of the point to the equation.}\ x=3,\ y=0:\\\\0=-\dfrac{1}{2}(3)+b\\\\0=-\dfrac{3}{2}+b\qquad\text{add}\ \dfrac{3}{2} \text{to both sides}\\\\b=\dfrac{3}{2}[/tex]

Answer:

Step-by-step explanation:

Density is mass divided by volume:

ρ = M / V

So mass is density times volume:

M = ρV

If the density is 865 kg/m³ and the volume is 61.25 m³:

M = (865 kg/m³) (61.25 m³)

M = 52981.25 kg

Final answer:

To find the mass of oil in a tank, multiply the tank's volume (61.25 cubic meters) by the oil's density (865 kg/m³), resulting in 52,981.25 kilograms. The mass is not measured in kilometers, which suggests a typo in the original question.

Explanation:

The question concerns the calculation of the mass of oil if its density and the volume of the tank it fills are known. To find the mass, you would multiply the volume of the oil by its density:

Step-by-Step Calculation:

Determine the volume of the oil. In this case, the volume is already given as 61.25 cubic meters.

Identify the density of the oil. According to the question, it is 865 kilograms per cubic meter.

Multiply the volume by the density to get the mass. That is:

61.25 m³ × 865 kg/m³ = 52,981.25 kilograms.

In terms of mass in kilometers, there appears to be a typo, as mass is not measured in distances like kilometers. The correct unit should likely be kilograms.

Answer:

Step-by-step explanation:

We can first make y the subject of the formula by multiplying both sides of the equation by -1 ;

y = -x + 0

This is the equation of a line with a slope of -1, the coefficient of x, and passing through the origin.

In order to find three points that solve the equation, we can let x be;

0, 1, 2

then determine the corresponding values of y.

When x = 0, y = -(0) + 0 = 0

When x = 1, y = -(1) + 0 = -1

When x = 2, y = -2 + 0 = -2

Therefore, we have the following three sets of points that can be used to graph the linear equation;

(0,0)

(1,-1)

(2,-2)

Find the attached for the graph of the equation;

Answer: (-1,1) (0,0) (2,-2)

Step-by-step explanation:

V = Bh

144 = (8 x 4)h

144 = 32h

4.5 = h

Final answer:

To calculate the height of the rectangular prism, we use the formula for volume and the given values to solve for height, resulting in a height of 4.5 inches.

Explanation:

To find the height of a rectangular prism with a given volume where the length is two times the width and the width is known, we use the formula for the volume of a rectangular prism: volume = length × width × height.

Given that the volume is 144 cubic inches, the width is 4 inches, and the length is two times the width, which is 2 × 4 inches = 8 inches, we can substitute these values into the formula:

144 in³ = 8 in × 4 in × height

Next, we need to isolate 'height' by dividing both sides of the equation by the length times the width of the prism:

144 in³ / (8 in × 4 in) = height

144 in³ / 32 in² = height

4.5 in = height

Therefore, the height of the rectangular prism is 4.5 inches.

Answer:

360

Step-by-step explanation:

f varies directly as g

f = kg  where k is the constant of variation

f varies inversely as h

f = kg/h

We know g = 198 when  h = –11 and f = –6.  Substituting in

-6 = k*198/(-11)

-6 =k*(-18)

Dividing each side by -18

-6/-18 = k*-18/-18

1/3 =k

Our equation is

f = 1/3 g/h

Letting  f = 12 and h = 10

12 = 1/3 g/10

Multiply each side by 10

12*10 =1/3 g/10*10

120 = 1/3 g

Multiply each side by 3

120*3 =1/3 g *3

360 =g

Answer: [tex](f-g)(x)=-x+10[/tex]

Step-by-step explanation:

Given the function f(x):

[tex]f(x)=3x-1+4[/tex]

And given the function g(x):

[tex]g(x)=4x-7[/tex]

You must subtract both functions is order to find [tex](f-g)(x)[/tex].

You need to remember the multiplication of signs:

[tex](+)(+)=+\\(-)(-)=+\\(+)(-)=-[/tex]

Then:

[tex](f-g)(x)=3x-1+4-(4x-7)[/tex]

Now, you must distribute the negative sign:

[tex](f-g)(x)=3x-1+4-4x+7[/tex]

And finally, add the like terms. Then you get that  [tex](f-g)(x)[/tex] is:

[tex](f-g)(x)=-x+10[/tex]

The answer is 45, I believe so

Answer:

Step-by-step explanation:

2x-10 is your answer

Answer:

D. 2x+5

Step-by-step explanation

All you have to do is put them all together and there you have it your answer of D 2x+5

f(x)= x[tex]x^2+x-30[/tex

    = [tex](x)^2+2*x*\frac{1}{2} +(\frac{1}{2} )^2-(\frac{1}{2} )^2-30[/tex]

    = [tex](x+\frac{1}{2} )^2-\frac{1}{4} -30[/tex]

    = [tex](x+\frac{1}{2} )^2-\frac{121}{4}[/tex]

    =[tex](x+\frac{1}{2} )^2-30\frac{1}{4}[/tex] (Answer)

Answer:

hypotenuse = 20

leg = x + 4

other leg = x

From the Pythagorean Theorem we know that

20^2 = (x + 4)^2 + x^2

400 = x^2 + 8x + 16 + x^2

2 x^2 + 8x -384 = 0

Solving the quadratic equation we get

x = 12 and x = -16

x = 12 and so the lengths of the 2 legs are:

12 and 16

Right Triangle Area = (leg1 * leg2) / 2

Right Triangle Area = (12 * 16) / 2

Area = 192 / 2

Area = 96 square centimeters

Step-by-step explanation:

To find the area of the triangle, we used the Pythagorean theorem to solve for the legs, obtaining lengths of 16 cm and 12 cm. The area is then calculated using the formula for the area of a right triangle (1/2 * base * height), resulting in an area of 96 cm².

We are given a right triangle with a hypotenuse of 20 cm and two legs where one leg (let's call it a) is 4 cm longer than the other leg (let's call it b). Using the Pythagorean theorem, we can express the relationship between the legs and the hypotenuse: a² + b² = 20². We know that a = b + 4, so if we substitute a into the equation, we get:

(b + 4)² + b² = 400

b² + 8b + 16 + b2 = 400

2b² + 8b - 384 = 0

Dividing everything by 2, we get:

b² + 4b - 192 = 0

Using the quadratic formula or factoring, we find that b = 12 (b can't be negative). Consequently, a = 16. The area of the triangle is given by 1/2 * base * height, which is:

Area = 1/2 * a * b

Area = 1/2 * 16 * 12

Area = 1/2 * 192

Area = 96 cm²