3 years ago

Which of the following ordered pairs represents the x-intercept of the equation y = 2x - 8?

2 answers:

4 0

Y=2x-8, so ti find the x-intercept, you would plug zero into y and solve for x:

0=2x-8 plug 0 in for y and now add 8 to both sides
8=2x now you have to divide by 2
4=x
(4,0)

nikdorinn [45]3 years ago

3 0

The answer is (0,-8)

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Marizza181 [45]

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Step-by-step explanation:

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3 years ago

In the regular octagon below, if AP = 12 cm. and BC = 19 cm, find its area.

Blizzard [7]

First symmetrically cut the octagon to get 8 pieces. (So that you will get the idea that this polygon is divided into 8 triangles)

Then find the area of one of the triangles:

Area of Triangle = $\frac{1}{2} * b* h$

A = $\frac{1}{2}$ × 12 × 19

A = 114 cm²

To find the area of the whole octagon shape:

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<em>Hope it helps!</em>

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1 year ago

Read 2 more answers

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AlexFokin [52]

Recall the secant-tangent theorem, and you have
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I suspect a typo somewhere in the murk above

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2 years ago

Find the radius of the circle whose equation is (x + 5)2 + (y + 8)2 = 16

Oxana [17]

The radius is 4.

Find the radius of the circle whose equation is (x + 5)2 + (y + 8)2 = 16

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4 years ago