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ANEK [815]
3 years ago
14

Simplify (2x-5y)^3-(2x+5y)

Mathematics
1 answer:
vesna_86 [32]3 years ago
5 0

Answer:

4x-10y thingi 3

Step-by-step explanation:

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A circle with radius 3 has a sector with a central angle of 1/9 pi radians
Art [367]

The area of sector is 1.57 m²

<u>Explanation:</u>

Given:

Radius, r = 3 m

Central angle of a sector = 1/9π radians

Area of sector, A = ?

We know:

Area of sector, A = \frac{1}{2} r^2 \alpha

where,

α is the central angle in radians

On substituting the value we get:

A = \frac{1}{2} X(3)^2 X \frac{1}{9}X 3.14\\ \\A = 1.57 m^2

Therefore, the area of sector is 1.57 m²

5 0
3 years ago
What are the solutions to the quadratic equ ton x2 – 16 = 0?
swat32

Answer:

x=4 and x=-4

Step-by-step explanation:

you dont really have to solve this one when you multiply the answer choices they should equal your B which is -16 and only 4 • -4 = -16 so yeah thats your answer

8 0
3 years ago
WILL MARK BRAINIEST! Mary is buying tickets for a movie.
erica [24]

Answer:

adult:$22.22     child:$22

Step-by-step explanation:

6 0
3 years ago
The area of a baseball field bounded by home plate, first base, second base, and third base is a square. If a player at first ba
JulsSmile [24]

Answer:

ta side from one base to next has  length of x. so we know each side has length x and  the shape they make is a square. This means we are only searching for the diagonal of a square. remember that a diagonal forms and isoscoles right triangle with the 2 sides being equal and the diagonal as the hypotenuse. Using  pythagoream theorem we can say

a^2 + b^2 = c^2 all side lengths are x so we can put x in for a and b  to get

x^2 + x^2 = c^2

2x^2 = c^2

c = x * squareroot(2)

so if the length between bases is 90 ft

c = 90 ft * squareroot(2)

c = 127.28 ft

Step-by-step explanation:

6 0
2 years ago
Lucy made $323 for 17 hours of work.
saveliy_v [14]
19 minutes I think just divide 323 and 17
3 0
3 years ago
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