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Anton [14]
3 years ago
14

Math Help? 15 Points

Mathematics
1 answer:
devlian [24]3 years ago
4 0
Umm. Is this high school?.
4 friends x 2 ballons = 8 friends only ballons. 
8 + 1 = 9.
9 total
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A regular octagon has an apothem measuring 10 in. and a perimeter of 66.3 in. What is the area of the octagon, rounded to the ne
Lerok [7]

Answer:

332in^2

Step-by-step explanation:

The area of a regular polygon is calculated using the formula;

Area=\frac{1}{2}ap

where a is the apothem and p is the perimeter.

It was given that, the apothem is, a=10in. and the perimeter is p=66.3 in.

We substitute into the formula to obtain;

Area=\frac{1}{2}\times10\times66.3in^2

Area=331.5in^2

To the nearest square inch, we have;

Area=332in^2

4 0
3 years ago
Read 2 more answers
Nina knows that the average of the x-intercepts represents the line of symmetry for a quadratic function through the x-axis. Whi
Ghella [55]

Answer:

To get the x-intercepts of the function, f(x) = 4x2 – 24x + 20

It has to be equated to zero and the values of x are the x-intercepts. So,

4x2 – 24x + 20 = 0

The resulting equation is a quadratic equation which can be solved by different methods. The solution is

x = 5, 1

The average therefore is:

(1+5/)2 = 3

5 0
3 years ago
Read 2 more answers
After five years of earning interest at an annual rate of 4%, an investment has earned $1,200 in interest. Determine the amount
Andru [333]
P=I÷rt
P initial investment ?
I interest earned 1200
R interest rate 0.04
T time 5 years

P=1,200÷(0.04×5)
P=6,000

Hope it helps
6 0
3 years ago
Read 2 more answers
Loretta uses 1/6 bag of
joja [24]
<span>you would take 3/4 and multiply it by six or to make it easyier just take the three and add it six times which is 18 thn you take 18 and divide it by 4 which you cant evenly so take 18/4 and reduce it which is 4 cup and 2/4 or 1/2</span>
5 0
3 years ago
6. Find the sum or difference<br> 1/3(9 - 6m) + 1/4 (12m-8)
romanna [79]

Answer:

m+1

Step-by-step explanation:

1/3(9 - 6m) + 1/4 (12m-8)

Distribute

1/3 *9  - 1/3 *6m  + 1/4 * 12m - 1/4 *8

3 -2m + 3m -2

Combine like terms

-2m+3m +3-2

m+1

6 0
3 years ago
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