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pshichka [43]
3 years ago
9

3x•(7•x) ASAP PLEASE

Mathematics
1 answer:
NeX [460]3 years ago
7 0

Answer:

21 x ^2

Step-by-step explanation:

3x(7x)

=3*x*7*x

=21*x^2

=21x^2

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Son built track for pig
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3 years ago
What is the midpoint of a line segment whose endpoints are (-4,3) and (5,-6)?
rjkz [21]
Okay, so let's start with the labeling first:
(-4 = x1, 3 = y1) and (5 = x2, -6 = y2)

So now it's time to use the formula:

x Midpoint = (x1 + x2) / 2
y Midpoint = (y1 + y2) / 2

So then that would be:

x Midpoint = (-4 - 5) = (4 + 5) / 2 = 4.5
y Midpoint = (3 - -6) = (3 + 6) / 2 = 4.5

So therefore our answer for the midpoint would be:
(4.5, 4.5) which is D


4 0
3 years ago
SOLVE <br><br> 2b-5/ b-2 -2 = 3/ b+2
Colt1911 [192]
The answer should be, b = 1
7 0
3 years ago
How does the volume of a cylinder change if the radius is quadrupled and the height is reduced to a third of its original size?
Liula [17]
Oh yay, proportional thinking! (Vicious sarcasm). Alright, let's do this:

Volume of the cylinder = <span>π(h)r^2
New volume = </span><span>π(h/3)(4r)^2
= (1/3)</span><span>π(h)(16r^2)
=16*(1/3)</span><span>π(h)r^2
=(16/3)</span><span>π(h)r^2

Therefore, it's D. Though it's spelled pi, and you should really use the ^ symbol. </span>
8 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the point(−5,−3) and has a slope of -1−1?
Vladimir [108]

Answer:

y= -x-8

Step-by-step explanation:

use desmos makes it easy

7 0
3 years ago
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