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noname [10]
2 years ago
12

Help, im timed :((( will mark branliest

Mathematics
1 answer:
Daniel [21]2 years ago
4 0

Answer: it is D)

Step-by-step explanation:

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A circular pool with a 10 foot diameter is surrounded by a deck. What is the area of the deck which surrounds the pool? use 3.14
zavuch27 [327]

Answer:

146.5 sq. feet.

Step-by-step explanation:

Area of the deck = Large Square (with 15 ft side) - Circular Pool (with radius 10/2=5)

Large Square area = s^2=(15)^2=225

Circular Pool area = \pi r^2=\pi (5)^2=\pi (25)\\=25(3.14)\\=78.5

Thus, area of deck surrounding pool = 225-78.5=146.5 sq. feet

7 0
3 years ago
Read 2 more answers
Write the product of 0.4. X 0.4 x 0.4 in exponential form
Mama L [17]

Answer:

(.4) ^3

Step-by-step explanation:

0.4. X 0.4 x 0.4

We are multiplying 3 of the number .4 's together

The number 3 is the exponent

(.4) ^3

3 0
3 years ago
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Three-Fourths of the student body attended the pep-rally. If there were 1230 students at the pep rally, how many students are th
tankabanditka [31]
3/4 of the total students = 1230...

3/4x = 1230
x = 1230 * 4/3
x = 4920/3
x = 1640 <=== total students
8 0
3 years ago
I don't know how to do this. I forget plz help
Leno4ka [110]
Ok so 
0.5%=0.005
0.005x=8
x=8/0.005
x=1600
8 is 0.5% of 1600
Hope this helps
If u still don't understand plz message me
If u understand plz brainlest me
If you continue with the same formula with a different problem then you will get it correct 
Thank you!
3 0
3 years ago
Read 2 more answers
2. An expression is shown.
laiz [17]

Adding parentheses in the component 9\div 3 of the expression may bring an output of 48.

<h3>Procedure - Application of hierarchy rules in a arithmetic expression</h3>

In this question we should make use of hierarchy rules represented by the use of parentheses. The parentheses oblige to make operations inside it before making it in the rest of the formula.

Now we decide to add parenthesis in the component 9\div 3 such that the result of the entire expression is 48. We proceed to present the proof:

2 \times 8 \times (9\div 3)

2\times 8 \times 3

2\times 24

48

Adding parentheses in the component 9\div 3 of the expression may bring an output of 48. \blacksquare

<h3>Remarks</h3>

The statement presents mistakes and is poorly formatted. Correct form is shown below:

An expression is shown: 2\times 8 \times 9 \div 3

Using the same expression, add parenthesis so that the value of the expression is 48.

To learn more on hierarchy rule, we kindly invite to check this verified question: brainly.com/question/3572440

5 0
2 years ago
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