Will mark brainliest

Answer:

True

Step-by-step explanation:

The formula for the area of a circle is πr² where r is the radius. So if 3 is the radius, plug it into the formula:

π(3²)

Simplify it:

π(9)

This can be rewritten as:

9π

So, the answer is true

Hope this helps! :)

Answer:

15 degrees

Step-by-step explanation:

Given:

The equation is

[tex]y=-1(x-4.5)^2+15.25[/tex]

To find:

The standard form of the given equation.

Solution:

We have,

[tex]y=-1(x-4.5)^2+15.25[/tex]

It is a quadratic equation.

The standard form of a quadratic equation is [tex]y=ax^2+bx+c[/tex]. So, we need to write the given equation in this form.

[tex]y=-(x-4.5)^2+15.25[/tex]

[tex]y=-[x^2-2(x)(4.5)+(-4.5)^2]+15.25[/tex]         [tex][\because (a-b)^2=a^2-2ab+b^2][/tex]

[tex]y=-[x^2-9x+20.25]+15.25[/tex]

[tex]y=-x^2+9x-20.25+15.25[/tex]

[tex]y=-x^2+9x-5[/tex]

Therefore, the required equation in standard form is [tex]y=-x^2+9x-5[/tex].

Answer:

The amount of the money earned left for the band to split is $357.5

Step-by-step explanation:

The amount the band earned for playing at the concert = $550.00

The percentage of the money earned taken by the manager = 15%

The percentage of the money earned the band is donating to charity = 20%

The amount of the money earned the manager takes = 15/100 × 550 = 82.5

∴ The amount of the money earned the manager takes = $82.5

The amount of the money earned that is donated to charity = 20/100 × 550 = 110

∴ The amount of the money earned that is donated to charity = $110

The amount of the money earned left for the band to split = $550 - $82.5 - $110 = $357.5.

Answer:

If you put two things together it cannot be less than what was originally there.

Step-by-step explanation:

For example if you have two bowls of soup and you add them together you will have more soup.

Alec is incorrect because this inequality of model 1 + 2 < 4 i.e. the sum of two numbers is greater than either number.

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

Alec says the sum of two numbers can never be less than an either number.

Using a model  a + b < c

Substitute the values a = 1, b = 2, and c = 4 in the inequality of model

1 + 2 < 4

So, the sum of two numbers is greater than either number.

Hence, Alec is incorrect.

Learn more about inequalities here:

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Answer:

y=71

x=109

Step-by-step explanation:

Answer:A

Step-by-step explanation:

When graphed it is the only one to semi-complete the pattern

Hello!

[tex]\large\boxed{f^{-1} = \frac{5x+2}{4x-2}, f^{-1}(3) = \frac{17}{10} }[/tex]

[tex]f(x) = \frac{2x +2}{4x - 5}[/tex]

Find the inverse by swapping the x and y variables:

[tex]y = \frac{2x +2}{4x - 5}\\\\x = \frac{2y +2}{4y - 5}[/tex]

Begin simplifying. Multiply both sides by 4y - 5:

[tex]x(4y - 5) = 2y + 2[/tex]

Start isolating for y by subtracting 2 from both sides:

[tex]x(4y - 5) -2 = 2y[/tex]

Distribute x:

[tex]4yx - 5x - 2 = 2y[/tex]

Move the term involving y (4yx) over to the other side:

[tex]- 5x - 2 = 2y - 4yx\\\\[/tex]

Factor out y and divide:

[tex]- 5x - 2 = y(2 - 4x)\\\\y = \frac{-5x-2}{-4x+2} \\\\y = \frac{-(5x + 2)}{-(4x - 2)} \\\\y^{-1} = \frac{5x + 2}{4x - 2}[/tex]

Use this equation to evaluate [tex]f^{-1}(3)[/tex]

[tex]f^{-1}(3) = \frac{5(3) + 2}{4(3) - 2} = \frac{17}{10}[/tex]

Answer:

The value of x=-8

Step-by-step explanation:

hope this helps.

Answer:

x = -8

Step-by-step explanation:

[tex]\frac{3}{4}(\frac{1}{4}x+8)-(\frac{1}{2}x+2) =\frac{3}{8}(4-x)-\frac{1}{4}x\\\\\frac{3}{4}*\frac{1}{4}x+\frac{3}{4}*8-\frac{1}{2}x-2 =\frac{3}{8}*4-\frac{3}{8}x-\frac{1}{4}x\\\\\frac{3}{16}x+3*2-\frac{1}{2}x-2 =\frac{3}{2}-\frac{3}{8}x-\frac{1}{4}x\\\\\\ \frac{3}{16}x+6-\frac{1}{2}x-2 =\frac{3}{2}-\frac{3}{8}x-\frac{1}{4}x\\\\\frac{3}{16}x-\frac{1}{2}x+\frac{3}{8}x+\frac{1}{4}x=\frac{3}{2}-4\\\\\\\frac{3}{16}x-\frac{1*8}{2*8}x+\frac{3*2}{8*2}x+\frac{1*4}{4*4}x=\frac{3}{2}-\frac{4*2}{1*2}\\\\\\[/tex]

[tex]\frac{3}{16}x-\frac{8}{16}x+\frac{6}{16}x+\frac{4}{16}x = \frac{3}{2}-\frac{8}{2}\\\\\frac{3-8+6+4}{16}x = \frac{3-8}{2}\\\\\frac{5}{16}x = \frac{-5}{2}\\\\x = \frac{-5}{2}*\frac{16}{5}\\\\x = -8[/tex]

Answer: [tex]x = -10[/tex]

Step-by-step explanation:

Hey there! I hope these steps will help you accomplish this problem :)

Step 1: Remove the parentheses.

[tex]6x - 2x + 9 = -31[/tex]

Step 2: Simplify.

                             [tex]6x - 2x + 9[/tex] to [tex]4x + 9[/tex].

[tex]4x + 9 = -31[/tex]

Step 3: Subtract 9 from both of the sides.

[tex]4x = -31 - 9[/tex]

Step 4: Simplify.

                            [tex]-31 - 9[/tex] to [tex]-40[/tex].

[tex]4x = -40[/tex]

Step 5: Divide both of the sides by 4.

[tex]x = -\frac{40}{4}[/tex]

Step 6: Simplify.

                             [tex]\frac{40}{4}[/tex] to [tex]10[/tex].

[tex]x = -10[/tex]

Answer:

Step-by-step explanation:

Here you go mate

step 1

6x-(2x-9)=-31  equation

step 2

6x-(2x-9)=-31  simplify

6x+-1(2x-9)=-31

step 3

6x+(-1)(2x-9)=-31  distribute

6x+-1(2x)+(-1)(-9)=-31

6x+-2x+9=-31

step 4

(6x+-2x)+(9)=-31  combine the terms that are alike

4x+9=-31

step 5

4x+9(-9)=−31(-9)  subtract-9

4x=-40

step 6

4x/4=-40/4  divide by 4 because 4 is a number that can make the division easier

answer

x=-10

Answer:

m=-1/4

Step-by-step explanation:

Perpendicular lines are negative reciprocals.

So if you have a slope of m= 4x you can break it up into, two parts

                         m= -4x

this is the negative^

and the reciprocal of m= -4x is m= -1/4x

The slope of the green line if the lines are perpendicular would be -1/4.

If two lines are perpendicular to each other, then their slopes are negative reciprocal of each other.

That means, if one line's slope is 'a', then its perpendicular line's slope would be -1/a.

Slope of parallel lines are same. Slopes of perpendicular lines are negative reciprocal of each other.

For the two lines two be perpendicular, the product of their slope must be -1.

Let the slope of the red and green line be m1 and m2.

Given the following

The Slope of red line = 4

According the definition, we get,

4m2 = -1

m2 = -1/4

Hence, the slope of the green line if the lines are perpendicular is -1/4

Learn more on perpendicular lines here:

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Answer:

x=-1

Step-by-step explanation:

Answer:

1. 2p - 10

2. 2n + 3

3. 2t + 7

4. 11k + 6

Step-by-step explanation:

Answer:

increase by 25%

Step-by-step explanation:

15-12=3

12÷3=4

4=25%

Answer:

80%

Step-by-step explanation:

Not so sure about the answer, but hopefully it helps.

Answer:

2 * 3 * 7 = 42

Step-by-step explanation:

2,3 and 7 are prime numbers

$2.00 US Dollars is the answer

Answer:

PAGE 1

16.) c

PAGE 2

11.) e

12.) a

PAGE 3

13.) e

14.) d

15.) b

PAGE 4 (SCREENSHOT)

Step-by-step explanation:

PAGE 1

16.) C b/c if you draw a line through it you have line of symmetry and a regular hexagon has rotational symmetry.

PAGE 2

11.) P(6, 2) ----(6*3, 2*3) -----> P'(18, 6)

So e is the answer

12.) The compound transformation should read

Dilation with center at origin and scale factor of 1/2

Reflection across the x-axis

Reflection across the x-axis rule is (x, y) -->(x, -y)

a is the answer b/c A(-1, -2) --> A'(-1/2, -1) --> (-1/2, 1)

PAGE 3

13.) The scale of the dilation is 1/4 b/c ---> 25*1/4 = 6.25 and 64*1/4 = 16

So 16*1/4 = 4 and 10*1/4 = 2.5, so e is the answer

14.) Dilation b/c you can either enlarge or reduce the pre-image.

15.) A heptagon has 7 lines of symmetry b/c it is equal to the number of sides

PAGE 4

SCREENSHOT

Hope this helps ya pal!!!

P.S. I added the screenshots that you didn't get the other time!

And on some of the graphs I forgot to put A'' or A''' so you will have to add the extra ' things it depends on how many transformations there are if there are 3 you but 3 ' on the red triangles.

Answer:

what?

Step-by-step explanation:

can you give me some more details

Answer:

-1

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation:

I did it in FLVS

Answer:

gfdxkcgftdkrxclfdrkyxcfdretkx

Step-by-step explanation:

Answer:

y = 4x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 4 and c = 3, then

y = 4x + 3 ← equation of line

Answer:

yes, both lines are somewhere on the top and the bottom going straight  

Answer:

Angle O congruent to Angle S, because this would pass the SAS proof. (Side Angle Side)

Answer:

B). 48

Step-by-step explanation:

48•64=3072

3072÷64=48

Answer:

value of X=180-(48+48)

=180-96

=84