flip your phone sideways to view the question​

Simplify= 4r+3

Because 8r plus -4r which is 4r and then 3 can’t be simplified so u keep it the same

Then the answer if r=5 is 23

Because the equation looks like 4(5)+3

5 times 4 is 20 plus 3 is 23

Final answer:

The expression 8r+(-4r)+3 simplifies to 4r + 3. Substituting r=5 into the simplified expression gives you 4(5) + 3, which equals 23.

Explanation:

To simplify the expression 8r+(-4r)+3, you combine the like terms which are 8r and -4r. They are like terms because they both contain the variable r.

Simplifying the like terms:

8r + (-4r) = 8r - 4r = 4r

So now the expression simplifies to 4r + 3. To solve for r = 5, you substitute the value of r into the simplified expression:

4r + 3 becomes 4(5) + 3,

20 + 3 = 23.

Therefore, when r = 5, the simplified expression evaluates to 23.

15+75=J.

So the jeans should be $90

Answer-

add 15 from 75 then that is it

75+15=90

from 50 to 35 is 15, so it went down by $15.

if we take 50 to be the 100%, what is 15 off of it in percentage?

[tex]\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 50&100\\ 15&x \end{array}\implies \cfrac{50}{15}=\cfrac{100}{x}\implies \cfrac{10}{3}=\cfrac{100}{x}\implies 10x=300 \\\\\\ x=\cfrac{300}{10}\implies x=30[/tex]

Answer:

-30%

Step-by-step explanation:

The decrease in price was $15.

Divide $15 by $50, obtaining 0.30, which in turn is mult. by 100%.

The percentage change, from $50 to $35, was -30%.

For this you have to make two proportions that are [tex]\frac{part}{whole}[/tex] and set them equal to each other.

The first proportion represents the percent of people who like silver as their favorite car color

Since this is a circle graph the whole will always be 100 because percents are always taken out of 100

The part would be 10 because only 10% out of the 100% like silver

The second proportion is the people that represent the response.

350 would be the whole because that is the total amount of people surveyed

The part is unknown and what you are solving for.

Here is how the proportion should look like:

[tex]\frac{10}{100} = \frac{x}{350}[/tex]

Cross multiply (If you don't know what this is look at the image below to see my work)

The cross multiplication will give you:

3500 = 100x

Isolate x by dividing 100 to both sides

3500/100 = 100x/100

35 = x

This means that 35 people out of the 350 surveyed like silver cars

Hope this helped!

Answer:

If the circle graph below represents the responses from 350 people, how many people chose silver as their favorite car color?

100

35

10

350

Step-by-step explanation:

D. is right plz put me Brainliest plz  

The circumscribed angle L has a measure of 49°.

If the measure of arc HJ is 98°, the measure of angle HMJ is 98°.

If the measure of arc HJ is 98°, the measure of arc HK is 131°.

Answer:

True, 1, 3, 5

Step-by-step explanation:

1. Angle L is sircumsribed angle, thenMJ⊥JL and MK⊥KL, so the measure of the angle L is

360°-131°-90°-90°=49° (the sum of all interior angles in the quadrilateral is 360°)

True

2. False, because m∠L=49°.

3. If the measure of arc HJ is 98°, then the measure of the central angle HMJ is 98°.

True

4. If the measure of arc HJ is 98°, then the measure of the central angle HMJ is 98° and the meausre of inscribed angle HKJ subtended on the arc HJ is half of the central angle measure and is equal to 49°.

False

5. If the measure of arc HJ is 98°, then the measure of the arc HK is

360°-131°-98°=131°

True

Answer:

$89

Step-by-step explanation:

add all the numbers together

see if u understand the answer

Answer:

C

Step-by-step explanation:

The circumference (C) of a circle is calculated using

C= 2πr ← r is the radius and has to be found

Given C = 20π , then

2πr = 20π ( divide both sides by 2π )

r = [tex]\frac{20\pi }{2\pi }[/tex] = 10

The area (A) of a circle is calculated using the formula

A = πr² = π × 10² = 100π m² → C

a=8+2=10; b=4•5=20; c=6-2=4

Answer:

a=10

b=20

c=4

Step-by-step explanation:

Answer:

[tex]x\in (-2,0)\cup (2,\infty)[/tex]

Step-by-step explanation:

Find the derivative of the function [tex]y=x^4 -8x^2 +16:[/tex]

[tex]y'=4x^3 -8\cdot 2x\\ \\y'=4x^3 -16x[/tex]

The function is increasing when [tex]y'>0,[/tex] so solve the inequality

[tex]4x^3-16x>0\\ \\4x(x^2-4)>0\\ \\4x(x-2)(x+2)>0\\ \\x\in (-2,0)\cup (2,\infty)[/tex]

You can see from the graph that the function increases for [tex]x\in (-2,0)\cup (2,\infty)[/tex]

Final answer:

To determine the intervals where the function y = x⁴ - 8x² + 16 is increasing, calculate the first derivative, find its critical points, and analyze the sign changes. The function is increasing on the intervals (-∞, -2), (0, 2), and (2, ∞).

Explanation:

Intervals Where the Function is Increasing

To determine on which intervals the function y = x⁴ - 8x² + 16 is increasing, we need to analyze the function's first derivative. The first derivative, y', indicates the slope of the tangent to the function at any point. When y' > 0, the function is increasing. Let's find the first derivative of the given function:

Take the derivative of the function y with respect to x: y' = 4x³ - 16x.

Set the derivative equal to zero to find critical points: 4x³ - 16x = 0.

Factor out the common term (4x): 4x(x² - 4) = 4x(x + 2)(x - 2) = 0.

Solve for x to find critical points: x = 0, x = -2, and x = 2.

Analyze the sign of y' around these points to determine where the function is increasing and decreasing.

Through analyzing the signs, you will find that the function is increasing on the intervals (-∞, -2), (0, 2), and (2, ∞).

Note that these intervals are determined by looking at the sign changes of the first derivative around the critical points and selecting the intervals where the derivative is positive.

Answer:

Step-by-step explanation:

It's a trapezoid.

The formula of an area of a trapezoid:

[tex]A=\dfrac{b_1+b_2}{2}\cdot h[/tex]

b₁, b₂ - bases

h - height

(look at the picture)

Use the Pythagorean theorem to calculate the length x:

[tex]x^2+12^2=15^2[/tex]

[tex]x^2+144=225[/tex]            subtract 144 from both sides

[tex]x^2=81\to x=\sqrt{81}\\\\x=9[/tex]

Substitute:

[tex]b_1=9+12+9=30\\b_2=12\\h=12[/tex]

[tex]A=\dfrac{30+12}{2}\cdot12=(42)(6)=252[/txt]

Answer: 30

Step-by-step explanation:

Answer:

D) x = -12 or x = 2

Step-by-step explanation:

The given quadratic equation is:

[tex]y=x^2+10x-24[/tex]

When y=0, we obtain:

[tex]x^2+10x-24=0[/tex]

We split the middle term with -2, 12 because their product is is -24 and their sum is 10.

[tex]x^2-2x+12x-24=0[/tex]

We factor by grouping to obtain:

[tex]x(x-2)+12(x-2)=0[/tex]

[tex](x-2)(x+12)=0[/tex]

Either [tex](x-2)=0[/tex] or [tex](x+12)=0[/tex]

Either [tex]x=2[/tex] or [tex]x=-12[/tex]

The quotient of 78,600 and 12 is 6,550

Answer:

6,550

Step-by-step explanation:

ANSWER

[tex]- 5\leqslant y \leqslant 1[/tex]

EXPLANATION

The given cosine function is:

[tex]y = 3 \cos4x - 2[/tex]

The amplitude of this function is:

3

This means the parent function has range:

[tex] - 3 \leqslant y \leqslant 3[/tex]

The given function has been shifted down by 2 units.

So we add -2 to the peak values to get

[tex] - 2 + - 3 \leqslant y \leqslant 3 + - 2[/tex]

The given function has range:

[tex]- 5\leqslant y \leqslant 1[/tex]

Answer:

-5 ≤ y ≤ 1

Step-by-step explanation:

correct

Answer:

0 or the third option down

Step-by-step explanation:

square root of 36-4(1)(9)

square root of 36-36

square root of 0

0

ANSWER

0

EXPLANATION

The given expression is:

[tex] \sqrt{ {b}^{2} - 4ac} [/tex]

We want to find the value of this expression when, a=1, b=-6 and c=9.

We substitute the given values into the expression to obtain:

[tex] \sqrt{ { (- 6)}^{2} - 4(1)(9)} [/tex]

We evaluate to obtain:

[tex] \sqrt{ 36- 36} [/tex]

This simplifies to

[tex] \sqrt{ 0} = 0[/tex]

The correct answer is the 3rd option.

Answer: 98?

Step-by-step explanation:

Answer:

7: 9 times 8: 108

Answer:

7. 9 times

8. 108 people

Step-by-step explanation:

7. The probability of winning is 25%

So, if a person plays 36 times, the probability will be:

25% of 36

=> 36 * 25/100

=> 36 * 0.25

=> 9 times

So, option 3 is correct .

8. Total number of people asked are 300

and

The percentage of people who prefer two-door cars are 36%

So, the number of people who prefer two-door car are:

300 * 36/100

=> 300 * 0.36

=> 108 people

So, option 1 is correct ..

Answer: i think a diamond

Step-by-step explanation:

Let's assume these are the vertices in order and calculated the squared lengths of the sides.  Let's calculate the vector for each side, which is the difference of the endpoints:

(7,10) - (4,7) = (3, 3)

(4,7) - (6,5) =(-2, 2)

(6,5) - (9,8) = (-3, -3)

(9,8) - (7,10) = (2, -2)

We see the pattern: (3,3) = -(-3,-3) and (-2,2) = -(2,-2)

We have two pairs of opposite vectors so we have a parallelogram.

Let's check the dot product of adjacent sides:

(3,3) . (-2, 2) = 3(-2) + 3(2) = 0

Zero dot product, we have perpendicularity. A parallelogram with one right angle is a

Answer: Rectangle

The adjacent sides are clearly not congruent  so it's not a square

.

Answer:

Step-by-step explanation: Step

1. Find a number you can multiply by the bottom of the fraction to make it 10, or 100, or 1000, or any 1 followed by 0s.

2. Multiply both top and bottom by that number.

3. Then write down just the top number, putting the decimal point in the correct spot

 Hey there!

 Turning fractions into decimals is very easy! You simply divide the numerator by the denominator and then you have your answer.

For example, we have 1/2. If we divide, we get 0.5, which is the decimal form.

I hope this helps!

Answer:

= 8.54 × 101

(scientific notation)

= 8.54e1

(scientific e notation)

= 85.4 × 100

(engineering notation)

(one)

= 85.4

(real number)

Answer:

482

Step-by-step explanation:

Their 2nd difference is 12

[tex]2,20,50,92,...\\ \\ a_1 = 2\\ a_2 = a_1+18=a_1+6\cdot 3 \\ a_3 = a_2+30=a_2+6\cdot 5\\ a_4 = a_3 +42 = a_3+6\cdot 7\\ a_5 =a_4+54 = a_4+6\cdot 9\\...\\a_n = a_{n-1}+6\cdot (2n-1) \\ \\ a_1+a_2+...+a_n = \\ =a_1+a_2+...+a_{n-1}+2+6\cdot \Big(3+5+7+...+(2n-1)\Big)\\ \\ a_n = 2+6\cdot \Big(3+5+7+...+(2n-1)\Big)\\ a_n = 6\cdot \Big(1+3+5+7+...+(2n-1)\Big)-4 \\ a_n = 6\cdot n^2-4 \\ \\ \Rightarrow \boxed{a_n = 6n^2-4}[/tex]

Answer:

The answer would be Meters.

Step-by-step explanation:

The length of the soccer field is measured in Meters.

There are units to measure everything. Like length is measured in units of millimeter, centimeter, meter, kilometer etc, weight is measured in milligram, gram, kilogram, etc, height is measured in inches, feet, etc.

A soccer field is the ground on which soccer is played. This field is measured in meters. The soccer field has different dimensions. There are standard touch lines, goal lines. Touch lines and goal lines dimensions are different for international play. These lines or dimensions are measured in meters.

Final answer:

The surface area of the rectangular prism is 376 square inches.

Explanation:

To find the surface area of an object, we need to calculate the sum of the areas of all its faces. Given the dimensions 10 in., 6 in., 8 in., and 7 in., we can assume that these are the lengths of the sides of a rectangular prism. The formula to find the surface area of a rectangular prism is 2lw + 2lh + 2wh, where l, w, and h represent the length, width, and height of the prism, respectively.

Using the given values, we can substitute 10 in. for l, 6 in. for w, and 8 in. for h to find the surface area:

Surface Area = 2(10 in.)(6 in.) + 2(10 in.)(8 in.) + 2(6 in.)(8 in.)

Surface Area = 120 in² + 160 in² + 96 in²

Surface Area = 376 in²

Answer:

C is the answer i did this before!

Step-by-step explanation:

Answer:

Step-by-step explanation:

Radius is half diameter so you have to multiply the radius by 2 to find diameter.

3 1/2 * 2 = 7

Answer:

7π

Step-by-step explanation:

The circumference (C) of a circle is

C = 2πr = 2π × [tex]\frac{7}{2}[/tex] = [tex]\frac{14\pi }{2}[/tex] = 7π

Answer:

[tex]\large\boxed{Surface\ Area=63\ cm^2}[/tex]

Step-by-step explanation:

We have

square  with sides s = 3cm

four triangles with base b = 3cm and height h = 9cm.

The formula of an area of a square:

[tex]A_\square=s^2[/tex]

The formula of an area of a triangle:

[tex]A_\triangle=\dfrac{bh}{2}[/tex]

Substitute:

[tex]A_\square=3^2=9\ cm^2\\\\A_\triangle=\dfrac{(3)(9)}{2}=\dfrac{27}{2}=13.5\ cm^2[/tex]

The Surface Area:

[tex]S.A.=A_\square+4A_\triangle\\\\S.A.=9+4(13.5)=9+54=63\ cm^2[/tex]

Answer:

9 cupcakes and 64$

Step-by-step explanation:

try the math

So first, set up an equation for each shop, for the first one you can write 4x+28 (since it is 4 dollars for each cupcake and 28 dollars for the cake) and for the second shop you can write 55+x ( 55 dollars for cake and a dollar for each cupcake.) now you can set the 2 equations equal to each other because they want the number for cupcakes where the price will be equal. So 4x+28=55+x and then solve. I don’t want to completely tell you the answer but if you are stuck, you can tell me and I will gladly help.

Answer:

Area of equilateral triangle = 43.3 units^2

Step-by-step explanation:

An equilateral triangle is a triangle in which all three sides of triangle are equal.

So,Length = 10 units

Area of triangle = [tex]\frac{\sqrt{3} }{4}*(side)^2[/tex]

                           = [tex]\frac{\sqrt{3} }{4}*(10)^2[/tex]

                           = [tex]\frac{\sqrt{3} }{4}*(100)[/tex]

                          = [tex]43.3units^2[/tex]

So, Area of equilateral triangle = 43.3 units^2.

The answer is:

The area of the triangle is equal to  [tex]A=43.30units^{2}[/tex]

To calculate the area of an equilateral triangle, we need to use the following formula:

[tex]A=\frac{s^{2} *\sqrt{3}}{4}[/tex]

Now, we are given an equilateral triangle, so we know that all of its sides are equal to 10 units.

So, calculating the area we have:

[tex]A=\frac{s^{2} *\sqrt{3} }{4}\\\\A=\frac{(10units)^{2} *\sqrt{3} }{4}\\\\A=\frac{100units^{2} *\sqrt{3} }{4}=43.30units^{2}[/tex]

Have a nice day!

Answer:

Final Price: 531.10

Discount: 132.77

Step-by-step explanation:

663.87 is 100%

? is 20%

?=20•663.87/100~$132.77 taxes

Net pay= 663.87-132.77=$531.1

Answer:

the domain of this function is [0, 27]

Step-by-step explanation:

One way of answering this question would be to make a table of x and y values.  Your x-values would be [0, 4] (that is, all x values between 0 and 4, including end points.

 x      y = 3x² - 6x + 3

 0                             3

 1                               0

 2                              3

 4                              27

From this table, it appears highly likely that the smallest y value would be 0, at x = 1, and that the largest would be 27 at x = 4.  Thus, the domain of this function is [0, 27].