Please help and show work

Answer:

254.34 in²

Step-by-step explanation:

The diameter is 18, so the radius is 9. The formula for circumference is [tex]\pi r^{2}[/tex]. 9 squared is 81. 81 x 3.14 is 254.34.

Hope it helps!

How many solutions does the system of linear equations have?
y = 34x + 12
y = 43x

34 < 5x + 9 < 44
Inequality

a. True/False
To complete the square on the left side of the equation x2 - 6x = 9,
you must subtract the number 9 from both sides.

Need help on this... First one to answer this correctly, I will give you a BRANLIST​

Harley solved the following equation and knows she made a mistake. Explain to her where her error was and then solve the equation correctly.

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Using two numbers 40 and 32 what is the ratio

11 The table below shows the amount of a decaying
radioactive substance that remained for selected
years after 1990.
0
2
5
9
14
17
19
Years After 1990 (X)
Amount (9)
750
451
219
84
25
12
8
Write an exponential regression equation for this
set of data, rounding all values to the nearest
x thousandth. Using this equation, determine the
amount of the substance that remained in 2002, to
the nearest integer.

The ratio of male to female players in Belfort Tennis Club is 3 : 5.
The club has a total of 240 players.
In the mixed doubles one male player partners one female player.

How many female players will not have a male partner?

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help please! im really confused and stuck

Find the missing values

Fwam answered 142 questions correctly on his multiple choice science final that had
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Noah already has $10.50, and he earns $3 each time he runs an errand for
his neighbor. Noah wants to know how many errands he needs to run to
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what is the inequality?

12.7
4. Mariana compró 46 pies de listón azul, para hacer adornos navideños, ¿cuántos
centímetros de listón tiene? (1 pie=0.3048 m)
1
3
14​

Miguel is ordering 6 bags of cat food from Canada. Each bag has a mass of 7.5 kg. To determine the shipping costs, Miguel needs to know the total weight in pounds. What is the weight of the cat food in pounds? Use 1 kg = 2.2 lbs and do not round any computations.

Please help.
Algebra.

WORTH 67 PTS!! I WILL GIVE BRAIBLIEST!
Write an expression that is equivalent to
3/4a + 2/3 - 1/2a - 1/3 + 1/2a

3/4a + 2/3 - 1/2a - 1/3 + 1/2a
= _a + _

Please help!! I will make you brainlest.

Rewrite the function by completing the square.
f(x) = x^2 – 8x – 2

look yall i got 10 math questions if you get all ten right brainlliest so if yall could help a man out here it would be great
here they are

1.)Which of the following best describes the squaring property of equality?
A.
if a=b,then [tex]a^{2} =b^{2}[/tex]
B
if [tex]a\leq b then a^{2} \leq b^{2}[/tex]
C
[tex]if a\geq b then a^{2} \geq b^{2}[/tex]
D
[tex]if a \neq b then a^{2} \neq b^{2}[/tex]

2.)Solve for x.
[tex]\sqrt{x-2} =9[/tex]
A.
11
B.
20
C.
83
D
no solution

3.)The length of a side of a square is [tex]\sqrt{x^{2}-4 }[/tex] If the area of the square is 12, find x.
A.
16
B.
4
C.
12
D.
[tex]\sqrt{148}[/tex]

4).Solve for x.
[tex]5x^{2} +3=-122[/tex]

A.
no solution
B.
–5
C.
±5
D.
±25

5.)solve for x[tex]x^{2} +5=30[/tex]

A.
±25
B.
[tex]\sqrt{35}[/tex]
C.
±5
D.
no real solutions
6.)The acceleration of an object can be described by the equation[tex]a=\frac{2d}{t²} where a is acceleration, d is the distance, and t is time. Suppose an object accelerates for a distance of 15 meters. Which of the following equations relates the time to the acceleration?
A.
[tex]t=\sqrt{\frac{a}{30} }[/tex]
B.
[tex]t=\sqrt{\frac{a}{15} }[/tex]
C.
[tex]t=\sqrt{\frac{30}{a} }[/tex]
D.
[tex]t=2\sqrt{\frac{30}{a} }[/tex]

7.)The acceleration of an object can be described by the equation [tex]a=\sqrt{\frac{2d}{t²} }[/tex] , where a is acceleration, d is the distance, and t is time. Suppose an object accelerates at a rate of 5 meters per second squared. Which of the following equations relates the time of the acceleration to the distance?
A.
[tex]t=\sqrt{10d}[/tex]
B.
[tex]t=\sqrt{2d}[/tex]
C.
[tex]t=\sqrt{\frac{5d}{2} }[/tex]
D.
[tex]t=\sqrt{\frac{2d}{5} }[/tex]

8.)Solve for x [tex]\sqrt{2x+8}=2[/tex]

A.
2
B.
–3
C.
–2
D.
no solution

9.)Solve for x:[tex]\sqrt{3x-2}=2[/tex]

A.
2
B.
[tex]-\frac{2}{3}[/tex]
C.
–2
D.
no solution

10.)What is the first step to solve the equation [tex]x^{2} -3=15[/tex]
A.
Take the square root of [tex]x^{2}[/tex], 3, and 15.
B.
Square 15.
C.
Add 3 to both sides of the equation.
D.
Add 1 to both sides of the equation.

can yall help a brother out im in deep sh|t if i dont pass so if your gunna do it do it right thank yall for helpen me out oh and i already tried to look em up so that dont work

if y varies direckly as x and y =12 when x = 4, find y when x = 12.​

Please help me with this

Which formula is created by completing the square of the equation ax2+bx+c=0?




Complete Square Equation


Point-Slope Form



Quadratic Equation



Slope Formula

To find the median you do not have to arrange the numbers in order from least to greatest (true or false)

please help i'm horrible at math ajdbvkdfjgvnfjglbdfg

The sinusoidal function f(x)=33sin(7x−π12)+33 models the height, in centimeters, that a valve stem of the a tire is above ground x seconds after the tire begins to rotate.

How long does it take the valve stem to complete one revolution?

A website received 2500 registered members in July. And the number of registered members in August decreased to 2245. What was the percentage decrease in the number of registered members?