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KATRIN_1 [288]
3 years ago
9

The diameter of a circular swimming pool is 8.5 m. What is the approximate circumference of the pool? Round to the nearest tenth

. Use 3.14 for π
Mathematics
2 answers:
Anna007 [38]3 years ago
6 0
The circumference would be 26.7 M.
Nikolay [14]3 years ago
3 0

here,

d=8.5m

c=π×d

=3.14*8.5

=26.67

=26.7m

the circumference of the pool is 26.7 m.

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Solve the system of equations.<br> -10x+3y=5 <br> x=y-4
blsea [12.9K]

Answer:

x=y-4                                          -10x+3y=5

y=x+4                                     y=10/3x+5/3

        x+4  =10/3x+5/3              

x=1

y=1+4                                      y=10/3(1)+5/3

y=5                                                    y=5

so

x=1

y=5

(1,5)

5 0
3 years ago
please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.
likoan [24]

ANSWER:

\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4

STEP-BY-STEP EXPLANATION:

We have the following equation:

f(x)=\sqrt{x}-4

The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\  \\ \sqrt{f^{-1}(x)}=x+4 \\  \\ f^{-1}(x)=(x+4)^2 \end{gathered}

The domain would be the range of the original equation, and it would be the range of values that f(x) could take, which was from -4 to positive infinity, that is, f(x) ≥ -4.

Therefore, the domain is x ≥ -4.

So the correct answer is D.

\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4

4 0
1 year ago
Sam has 3/8 yard of twine to build model ship how much can he buy
Umnica [9.8K]
You never told us how much money he has
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Find (-21)+(-13)+20.
Fed [463]

Answer:

14

Step-by-step explanation:

-21+-13+20=14

This is true because when subtracting negatives by negatives you pretty much add them and then when you add a positive to a negative you are technically removing the negative by the amount you are adding.

In short its kind of like using inverse operation in a way.

Hope this helps and have a nice day

Also may I please have a brainliest!!!

5 0
3 years ago
ben brought two pizza to a party . he says that since 1/4 of each pizza left,the same amount of each pizza is left. What is his
bearhunter [10]
Since the 1/4 of each pizza left :

Which means that :
Pizza 1 = 1/4 pizza Left
Pizza 2 = 1/4 pizza Left

i think there is no error in what's ben saying

7 0
3 years ago
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