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mr_godi [17]
3 years ago
11

(a + 3)(a - 2) I need help answering this but don't know the answer. Can someone please help?

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
3 0

(a+3)(a-2)

(a² -2a +3a - 6) =0

(a² + a - 6 ) = 0

Use splitting the middle term

a² + 3a - 2a - 6 = 0

a(a+3) - 2(a+3) = 0

(a-2)(a+3) = 0

Values of a are

a - 2 = 0

a = 2 .....(i)

a+3 = 0

a = -3 .....(ii)

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A fence completely surrounds a pool,that is 30 feet by 10 feet.what is the approximate length,in feet,of the fence
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Because the fence's dimensions is 30 feet by 10 feet, you can assume that one side of the pool is 30 feet while the other, non-congruent side, is 10 feet. The formula for perimeter, which you are trying to find,  is 2L+2W=P. In this problem, 30 will be your L and 10 will be your W. Therefore, 2(30) +2(10)=80.

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3 years ago
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Dima020 [189]

A circle is a geometric object that has symmetry about the vertical and horizontal lines through its center. When the circle is a unit circle (of radius 1) centered on the origin of the x-y plane, points in the first quadrant can be reflected across the x- or y- axes (or both) to give points in the other quadrants.

That is, if the terminal ray of an angle intersects the unit circle in the first quadrant, the point of intersection reflected across the y-axis will give an angle whose measure is the original angle subtracted from the measure of a half-circle. Since the measure of a half-circle is π radians, the reflection of the angle π/6 radians will be the angle π-π/6 = 5π/6 radians.

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3 years ago
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3 years ago
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Lisa [10]

The rate of change of the relationship is 6/5

<h3>Rate of change of a line</h3>

The rate of change of a line is also known as the slope of the line. The formula for calculating the slope of a line is expressed as:

Slope =y2-y1/x2-x1

Given the coordinate points (-3,-2) and (2, 4). On substituting;

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Hence the rate of change of the relationship is 6/5

Learn more on rate of change here: brainly.com/question/25184007

#SPJ1

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