Sum of interior angle of a pentagon

Answer:

540

Step-by-step explanation:

(n-2) 180

(5 -2) 180

3 x 180

540

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

Fwam answered 142 questions correctly on his multiple choice science final that had
a total of 200 problems. What percentage of questions did Fwam answer correctly on
the final exam?

Please help me with this

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

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

Find f^-1(x) where
f(x) = 3x + 2 / x

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
have at least $30.*
what is the inequality?

It says solve for the variable can you help me

34 < 5x + 9 < 44
Inequality

help please! im really confused and stuck

plz answer all of them

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?

Triangle A
Triangle B
Which of the following sequences of transformations will carry triangle A onto triangle B?
O A. Rotate triangle A 90° clockwise about (-1,-4), reflect it over the x-axis, and translate it 3 units to the left.
ОВ.
Translate triangle A 1 unit up and 1 unit to the left, rotate it 90° clockwise about the origin, and reflect it over the y-axis.

Find the common difference for the given sequence.

1.05, 1.1, 1.15, 1.2, ...

0.5
0.05
0.005

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.

Brenda wants to attach a string of beads along the circular bottom edge of the lampshade shown
below. The diameter of the bottom of the lampshade is 16 centimeters.
About how many centimeters long should Brenda make the string of beads?

MATH, HELP ASAP
TWO STEP EQUATIONS
What is three times the sum of a number and five times the number is thirty six what is the number

If triangle DEF is dilated by a scale factor of 1/2 with center of dilation at the origin
(0,0), what is the x-coordinate of E'?
Please help 20 points

WILL GIVE BRAINLIEST AND 20 POINTS!
To prevent fraying, a binding is attached to the outside of a circular rug whose radius is 3 ft. If the binding costs $1.35 per foot, find the cost of the binding. Use 3.14 for . (Round your answer to the nearest cent.)
$

a lesson starts at 2:30 it lasts for 55 minutes. when does the lesson end

-9 + 5y - 7y + 3y = ?

Marlene purchased 20 stamps at the post office for $8.40. What is the cost of one stamp?

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

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

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?

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.

what are the y-intercepts to graph the equation-4x - 3y = 36

Please answer ASAP!!
6.7.30
What is the perimeter of parallelogram WXYZ? It’s not 25 I’ve tried that.

the function 8x^2-9x-148x 2 −9x−14 divided by x-2x−2