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Olegator [25]
3 years ago
10

A circle has a diameter of 10 centimeters and a central angle eog that measures 210°. what is the area of the shaded sector? use

3.14 for pi and round your answer to the nearest tenth.
Mathematics
2 answers:
Nitella [24]3 years ago
5 0
The area of sector is given by:
A=θ/360πr²
θ=210°
r=10/2=5 cm
thus the area will be:
A=210/360×π×5²
A=210/360×3.14×5²
A=45.8 cm²
azamat3 years ago
5 0

Answer:

Step-by-step explanation:

1. 121

2. 143

3. 151

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18/20-4/12<br>Show your work​
Elena-2011 [213]

Answer:

17/30 (0.56)

Step-by-step explanation:

18/20-4/12

Reduce the fraction with 2 and 4: 9/10-1/3

Write all numerators above the least commmon denominator 30: 27-10/30

Subtract: 27-10/30 = 17/30

4 0
3 years ago
Read 2 more answers
Mentally estimate total cost of items that have the following prices: the Round off your answers to the nearest half-dollar
kirill115 [55]
Hi there, the complete question is - <span>You wish to mentally estimate the total cost of items that have the following prices: $1.85, $.98, $3.49, $9.78, and $6.18. Rounding off the items to the nearest half dollar, your estimate of the total cost of these items is? 

Add and estimate 

</span> 2+1+3.5+10+6, so our estimate is $22.50.

6 0
3 years ago
Someone Help please!
salantis [7]
I think ur answer would be C.
8 0
3 years ago
PLEASE HELP!!
Stolb23 [73]

Answer:

27 quarters and 37 nickels

Step-by-step explanation:

Nickels are 5¢

Quarters are 25¢

$8.60 is 172 nickels (860/5)

$8.60 is 34.4 quarters (860/25)

So then let's split it half-and-half.

425 and 435

425 would become 17 quarters.

435 would become 87 nickels.

This is still too much.

Now let's try 700 and 160.

700 would become 28 quarters

160 would become 32 nickels.

28+32=60.

This is a lot closer.

So now 27 quarters and 37 nickels. This works.

7 0
2 years ago
At the local grocery store, a 16-ounce bottle of apple juice costs $3.20. What is the cost of the apple juice per ounce? Show wo
oee [108]

<u>The answer is $0.20</u>

<u>When you say 3.20 ÷ 16, it gives you 0.2, but you need to add a zero at the end to make it understandable, so that is how you end up with $0.20</u>



4 0
3 years ago
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