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andrew11 [14]
3 years ago
7

Need help with problem 9 please use the diagram

Mathematics
1 answer:
jeka57 [31]3 years ago
3 0

i think the answer is 16.12 tell me im right

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What is the perimeter of a square which has the same area as a circle with circumfrence of 4π
Kruka [31]

Answer:

Perimeter square = 8 sqrt(pi)

Step-by-step explanation:

The perimeter of a square is 4*s

The area of a circle is Area = pi * r^2

The circumference of a circle is C = 2*pi * r

C = 4 pi

4pi = 2*pi * r

r = 2

So the area of the circle is pi * r^2 = pi * 2^2 = 4pi

The square has the same area

Area = 4*pi

Square = 4*pi

s^2 = 4*pi

s = sqrt(4*pi)

s = 2*sqrt(pi)

The perimeter = 4 * 2 * sqrt(pi)

The perimeter = 8 * sqrt(pi)

8 0
3 years ago
The equation of a line is y=-2x+1. What is the equation of a line that is parallel to the first line and passes through (2,2)
Alex
The answer is y=-2x+6

We know the slope of the given equation is -2. A parallel line must have the same slope as the original function. So if we plug in the coordinates and the slope into the point slope formula we get y=-2x +6

7 0
3 years ago
What is y= 1/3 x - 9 written in standard form?
NISA [10]

Answer:

c

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A high school club has a performance, with 800 tickets to sell. Tickets are $6 before the day of the show, and $9 on the day of
sweet-ann [11.9K]
A) Let x = number of presale tickets 
<span>y = number of day of show tickets </span>

<span>x + y =< 800 </span>
<span>6x + 9y >= 5000 </span>

<span>b) 6x + 9y >=5000 </span>
<span>6(440) + 9y >=5000 </span>

<span>y >= 262.2 </span>
<span>263 tickets </span>

<span>440 advance purchase tickets added to 263 day of show tickets is 703 tickets, which is below the 800 ticket maximum.</span>
4 0
3 years ago
Read 2 more answers
628.319 rounded to the nearest tenth
attashe74 [19]
<h2><em><u>Answer: 628.3</u></em></h2>

Step-by-step explanation: Tenth is always the first decimal point so 1 rounds down, making it 628.3.

5 0
3 years ago
Read 2 more answers
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