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Angelina_Jolie [31]
3 years ago
8

The diameter of a circle is 7 cm. Find its area to the nearest tenth.

Mathematics
2 answers:
lesya692 [45]3 years ago
4 0
The answer is 38.5 i hope this helps
NARA [144]3 years ago
3 0

Answer:

38.5 cm

Step-by-step explanation:

1. To find the radius divide 7 by 2 which is 3.5

2. Then multiply 3.5 by itself which is 12.25

3. Next multiply 12.25 by 3.14 ( 3.14 = \pi = pi )

4. Lastly your answer will be 38.5

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It takes Natalie five hours to tar a roof. Imani can tar the same roof in ten hours. How long would it take them if they worked
tresset_1 [31]

Answer:

C. 3.33 hours

Step-by-step explanation:

Use the algebra work equation:

\frac{1}{tb} = \frac{1}{t1} + \frac{1}{t2}, where tb is the time to work together, t1 is the time it takes one person, and t2 is the time it takes the other person

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5 0
3 years ago
Write an exponential function in the form y = ab^x that goes through points (0,5)<br> and (4,6480).
tia_tia [17]

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Step-by-step explanation:

7 0
3 years ago
Suppose someone tells you that she has a triangle with sides having lengths 2.2, 4.5, and 6.7. Is this a right triangle?
laila [671]
You can apply the Pythagorean theorem:
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