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2 years ago

5

Factor the expression. 2x + 8

1 answer:

IgorC [24]2 years ago

5 0

Answer:

2x+8

2 is common

2(x+4)=0

Step-by-step explanation:

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write the standard form of the equation of the line described. through (-2,3), perpendicular to y=2/7x+5

Setler79 [48]

The general form of a linear equation is
y = mx + b
where m = slope and b = y-intercept
Here m = 2/7
To get to its perpendicular equation, first the slope should be negative reciprocal. So the perpendicular slope is m = -7/2
Given the point (-2,3), use the point-slope form equation, that is
y - y1 = m(x - x1)
Plug in
y - 3 = (-7/2)[x - (-2)]
y - 3 = (-7/2)x - 7
y = (-7/2)x - 7 + 3
y = (-7/2)x - 4
That is the equation required.

4 0

3 years ago

The formula of the volume of a pyramid is 1/3BH, where B represents the area of the base of the pyramid and H represents the hei

zysi [14]

Answer:

It depends on the relation between the heights of both pyramids

Step-by-step explanation:

We know the volume of a pyramid of base b and height h is

$V=\frac{1}{3}bh$

If the volume of the pyramid A is 3 times the volume of the pyramid B, then

$\frac{1}{3}b_ah_a=3*\frac{1}{3}b_bh_b=b_bh_b$

Which means

$b_ah_a=3*b_bh_b$

If we knew both heights are the same, we could conclude that

$b_a=3*b_b$

In which case the base of the pyramid A would be greater than the other base

But if, for example, the height of the pyramid A is 3 times the height of the other height, then

$3*b_a=3*b_b=>b_a=b_b$

Both bases would be the same.

If we choose that

$h_a >3*h_b$

it would mean

$b_a$

In which case the base of the pyramid A would be less than the other base

So the answer entirely depends on the relation between the heights of both pyramids

3 0

2 years ago

R+6<10 what’s the answer?

Vera_Pavlovna [14]

Answer:

r < 4

Step-by-step explanation:

r+6<10

r < 4

3 0

2 years ago

Which number is bigger, <br><br> square root of 24 <br> or <br> 4.256

mafiozo [28]

Answer:

The square root of 24

Step-by-step explanation:

The square root of 24 is about 4.899 which is greater than 4.256.

7 0

2 years ago

Read 2 more answers

What is the answer to the equation -(-(-(-2)))

marysya [2.9K]

Answer:

2

Step-by-step explanation:

Since there are four negative signs, we have -1 multiplying each other 4 times, multiplying by positive 2. This is then 1 * 2, which is 2.

7 0

3 years ago

Read 2 more answers