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Alex787 [66]
2 years ago
10

Please help quickly!!

Mathematics
1 answer:
erastovalidia [21]2 years ago
6 0

Answer:

D

Step-by-step explanation:

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A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fountain. Round answers to nearest tent
AlexFokin [52]

Answer:

39.275

Step-by-step explanation:

the diameter of the semicircle is 10

A semicircle is half a circle, and a quarter circle is 1/4 of a circle.

Perimeter of a semicircle is ¶d/2

= 3.142 x 10/2 = 3.142 x 5 = 15.71

For 2 semicircles that will be 15.71 x 2 = 31.42

For the quarter circle, perimeter is ¶d/4 = 3.142 x 10/4 = 3.142 x 2.5 = 7.855

Total perimeter = 31.42 + 7.855 = 39.275

5 0
3 years ago
Find the product. (n + 7)2
nlexa [21]
<span>(x-7)^2 = (x-7)(x-7) = x^2 -7x -7x +49 = x^2-14x+49</span>
answer is 'x^2+14x+49'
4 0
3 years ago
I=$720, P=$1000, r=9%
UNO [17]
I = PRT

720 = (1,000)(0.09)(t)
720 = 90(t)
720/90 = t
8 = t  or t = 8

I am not sure if it is terms  of months or years but 8 is the answer. hope it helps :)
7 0
3 years ago
Read 2 more answers
An investment made in the stock market decreased at a rate of 4.2% per year for 15 years. What is the current value of the $1,00
loris [4]
<span>For exponential decrease use the formula P(1 - r)^t
p: initial amount 
r: rate of change or percent of decrease (be sure to put in decimal form or you wont get the right answer)
t: amount of time (in years) 
1,000,000 (1-0.042)^15 =
$525,391.01
(also make sure to use pemdas or order of operations when solving) hope this helps :)</span>
8 0
3 years ago
There are 24 basketball teams competing in a tournament. After each round half the teams are eliminated. This situation can be m
BaLLatris [955]

Answer:

b(x)=24(1/2)x

Step-by-step explanation:

3 0
3 years ago
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