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DaniilM [7]
3 years ago
12

What is the circumference of a circle with a diameter of 20 inches

Mathematics
1 answer:
sergeinik [125]3 years ago
8 0

Answer:

62.8 in

Step-by-step explanation:

Circumfrence=pi x diameter

3.14 x 20=62.8

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Whats the solution ​
Sergio039 [100]

Answer:

Step-by-step explanation:

To find the center and the radius, we need to put the equation in the (x-a)^2+(y-b)^2=r^2 [a is the x-coordinate, b is the y-coordinate, and r is the radius].

(x+6)^2+(y+7)^2 - 36 - 49 + 69 = 0

(x+6)^2+(y+7)^2 - 16 = 0

(x+6)^2+(y+7)^2 = 16

(x+6)^2+(y+7)^2 = 4^2

The center is (-6,-7) and the radius is 4.

Hope this helps!

5 0
2 years ago
The temperature, T , of a given mass of gas varies inversely with its volume, V . The temperature of a certain gas with volume o
alekssr [168]
We know that

if t<span>he temperature T of a given mass of gas varies inversely with its volume V 
</span>then
T=k/V

Step 1
Find the value of k
for T=30º C and V=105 cm³
we have 
T=k/V--------> k=T*V--------> k=30*105=3150 °C*cm³

therefore
for V=84 cm³
T=3150/84=37.5 °C

the answer is 37.5 °C
3 0
3 years ago
Suppose the heights of professional horse jockeys are normally distributed with a mean of 62 in. and a standard deviation of 2 i
ch4aika [34]
Mean = 62 in
SD = 2 in

At 16% = 0.16 and using Z tables,

Z≈ -0.99

x =(-0.99*2) + 62 ≈ 60 in

This represents jockeys who are shorter than 60 in.
6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Chuge%5Cblue%7B%5Cboxed%7B%5Ctt%7B%5Ccolorbox%7Bblack%7D%7Bhi%20need%20kausap%20%5C%3A%20who
mars1129 [50]
What???????? Lol I don’t get it
6 0
2 years ago
Read 2 more answers
In 2016, the price of a stock decreased by $11. In 2017, the price
Finger [1]

Answer: -11 + (-13)

Step-by-step explanation: This shows that the stock has decreased by 24.

5 0
3 years ago
Read 2 more answers
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