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bearhunter [10]
2 years ago
8

Help me on this one please​

Mathematics
2 answers:
soldi70 [24.7K]2 years ago
7 0

Answer:

615.8

Step-by-step explanation:

Circle area = π * r² = π * 196 [mcm²] ≈ 615.8 [cm²]

Georgia [21]2 years ago
4 0

Answer:

Area is 616 square centimeters.

Step-by-step explanation:

<u>Area of Circle</u>

A = \pi r^2

A ... area

r ... radius

<u>Given</u>

r = 14 cm

Use formula.

A = \pi r^2

A = \pi (14 \text{ cm})^2

A = \pi (196) \text{ cm}^2

Use \frac{22}{7} for \pi, since they tell you to use that in instructions.

A = (\frac{22}{7}) (196)  \text{ cm}^2

A = 616 \text{ cm}^2

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398.574986215 to the nearest ten-thousandth.
Julli [10]

Answer: 398.5750

Step-by-step explanation:

It is important to remember that the fourth digit after the decimal point is in the ten-thousandth place.

Then, given the  following number:

398.574986215

You can follow these steps in order ti round it to the nearest ten-thousandth:

1. You can identify that the digit in the ten-thousandth place is:

9

2. Identify the digit to the right of 9. This is:

8

3. Since:

 8>5

 You must round up. Increase the digit 9 by 1. (Notice that 9+1=10, then the digit to the left of  9 increases by 1 too). Then:

398.5750

3 0
4 years ago
C=wtc/1000 solve for w
Nutka1998 [239]
For this case we have the following equation:
 C =  \frac{wtc}{1000}
 To clear w, we must follow the following steps:
 1) The value of t multiplied by c pass to divide the other side of the equation:
 \frac{w}{1000} =  \frac{C}{tc}
 2) the value of 1000 is passed to multiply to the other side of the equation:
 w = \frac{1000C}{tc}
 Answer:
 
The cleared equation for w is:
 
w = \frac{1000C}{tc}
3 0
3 years ago
Read 2 more answers
Please help me thanks ​
malfutka [58]
I believe it would be the last answer, 6.25
if this is correct i’m very sorry, but if this helps, please mark brainliest. :)
6 0
3 years ago
A boat sails for 5 hours at 30 mph in a direction 164°56'. How far south has it sailed (to the nearest mile)?
Valentin [98]
Total distance covered = 5 x 30 = 150 miles
Angle of travel with respect to south pole = 180 - 164°56' = 15°4'

Let the distance southwards covered be x, then
cos 15°4' = x/150
Thus, x = 150 cos 15°4' = 144.84

Therefore, the distance covered southwards = 145 miles to the nearest mile.
5 0
3 years ago
How does a dot plot help you describe a data set
REY [17]
A dot plot shows results from a range of data, giving it coordiantes so you can plot it on a graph
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