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Vlad1618 [11]
3 years ago
7

Pllllllllllls sssssssss

Mathematics
2 answers:
Brrunno [24]3 years ago
8 0
Nineteen is ur anwser
Mkey [24]3 years ago
6 0

Answer:

19

Step-by-step explanation:

8.97 \approx  9 \\  \\ 9.53 \approx \: 10 \\  \\ 8.97 + 9.53 \\  \\  = 9 + 10 =  \boxed{19}

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HELP ME PLEASE IM SO LOST
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A=10ft because A is 8ft so round that to the nearest ten your answer is 10ft
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What is the best estimate for the product of 289 and 7
iVinArrow [24]
I would say about 41.29
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3 years ago
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What is the area of a regular hexagon (6 sides) whose
Ganezh [65]

Step-by-step explanation:

With reference to the regular hexagon, from the image above we can see that it is formed by six triangles whose sides are two circle's radii and the hexagon's side. The angle of each of these triangles' vertex that is in the circle center is equal to 360∘6=60∘ and so must be the two other angles formed with the triangle's base to each one of the radii: so these triangles are equilateral.

The apothem divides equally each one of the equilateral triangles in two right triangles whose sides are circle's radius, apothem and half of the hexagon's side. Since the apothem forms a right angle with the hexagon's side and since the hexagon's side forms 60∘ with a circle's radius with an endpoint in common with the hexagon's side, we can determine the side in this fashion:

tan60∘=opposed cathetusadjacent cathetus => √3=Apothemside2 => side=(2√3)Apothem

As already mentioned the area of the regular hexagon is formed by the area of 6 equilateral triangles (for each of these triangle's the base is a hexagon's side and the apothem functions as height) or:

Shexagon=6⋅S△=6(base)(height)2=3(2√3)Apothem⋅Apothem=(6√3)(Apothem)2

=> Shexagon=6×62√3=216

8 0
2 years ago
The radius of the earth is 6.371 X 10^3 km. Write the value of this scientific notation and express the radius in words.​
snow_tiger [21]

Answer:

6371. six thousand three hundred and seventy-one

8 0
2 years ago
Mary deposits $400 into an account that pays simple interest at a rate of 2% per year. How much interest will she be paid in the
yawa3891 [41]

Answer:

$16

Step-by-step explanation:

Simple interest is based on the principal amount of a loan or deposit, whereas compound interest is based on the principal amount and the interest that accumulates on it in every period.

Simple Interest = P x r x n

where P = Principal amount, r = Annual interest rate, n = Term of loan, in years​

2% = 2 ÷ 100 = 0.02  so r = 0.02

Therefore,  

Simple Interest = 400 x 0.02 x 2 = 16

So she will be paid $16 in the first two years.

3 0
2 years ago
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