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zimovet [89]
3 years ago
11

Use the formula for the area of a circle to solve for the radius of the circle if the area is 78.5cm^2

Mathematics
1 answer:
postnew [5]3 years ago
5 0

Answer:

Area = PI * radius^2

radius = Sq Root (Area / PI)

radius = Sq Root (78.5 / PI)

radius = Sq Root (24.9873260654)

radius = 4.9987

radius = 5 (rounded)



Step-by-step explanation:


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-0.003 %Fahrenheit

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5 0
3 years ago
100 envelopes cost you .70 what would 250 envelopes cost you
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8 0
3 years ago
Read 2 more answers
I need help....Does anybody know the answer?
Alex_Xolod [135]

Answer:

4/5

Step-by-step explanation:

8/15 = 8/15

3/5 = 9/15

2/3 = 10/15

11/15 = 11/15

We see that the pattern is that the terms increase by 1/15 as they move up.

Thus, the next term in the sequence is 12/15, which can be simplified to 4/5.

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3 0
2 years ago
what is the answer to the volleyball team at blue point high school has saved $680 and the team plans to spend no more then that
zloy xaker [14]

Answer:

6 x + 23 y  < $ 680  represents the combinations of x balls and y nets that can be purchased.

Step-by-step explanation:

The number of balls than can be purchased  = x

The number of nets than can be purchased  = y

Total savings  = $ 680

Now, the cost of 1 ball =$6

So, the cost of x balls = x ( cost of 1 ball) = x ( $6)  = 6 x

Also, the cost of 1 net =$23

So, the cost of y nets = y ( cost of 1 net = y ( $23)  = 23 y

So, the total amount spent on x balls  and y nets

= Amount spent on x balls + Amount on y nets

=  6 x + 23 y

Also, the saved amount is $680

⇒<u> 6 x + 23 y  < $ 680</u>

Hence, 6 x + 23 y  < $ 680  represents the combinations of x balls and y nets that can be purchased.

4 0
3 years ago
a gardener plants seedlings in a line in small enclosures formed by bricks.Each extra seedling planted means two extra bricks ar
I am Lyosha [343]

38 seedlings

solve 2n + 2 = 78

subtract 2 from both sides

2n = 78 - 2 = 76

divide both sides by 2

n = \frac{76}{2} = 38

number of seedlings that can be planted is 38


7 0
3 years ago
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