What is the slope of the line that passes through the points (–20, 18) and (30, 14)?

Mathematics

2 answers:

salantis [7]2 years ago

4 0

Answer:

-2 /25

Step-by-step explanation:

Tom [10]2 years ago

3 0

Answer:

-2/25

Step-by-step explanation:

m= y2-y1/x2-x1

m=14-18/30 -(-20)

m=-4/50

m=-2/25

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Amber, Bernie, and Carlos are working on a problem together. Their goal is to correctly apply the difference of cubes formula to

NeX [460]

Answer: Carlos is correct

Step-by-step explanation:

2x^5-250x^2

The first step is to factorize out 2x^2

2x^2(x^3-125)

This can be rewritten as

2x^2(x^3-5^3),

Recall, difference if cube (a^3-b^3)

= (a-b)(a^2 +ab + b^2)

from our equation,

a= x

b = 5.

So the difference of cubes will be

2x^2[(x-5) (x^2 + 5x + 5^2)]

=2x^2[(x-5) (x^2 + 5x + 25)]

Carlos followed these steps. So he is correct. Carlos is correct because he correctly factored the GCF, identified a and b, and applied the difference of cubes method.

Amber is incorrect because 125 is equal to b3, not b.

Bernie is incorrect because x2 is not the GCF of the polynomial. The GCF is 2x^2.

6 0

3 years ago

A semi-circle window can be used above a doorway or as an accent window

anzhelika [568]

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A semicircle is a part of a circle, and it is referred to as half of a given circle.

such that:

Area of a circle = $\pi$ $r^{2}$