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insens350 [35]
3 years ago
6

PLS HELP, I will mark u brainliest if u help me! first person gets it right and does it first.

Mathematics
1 answer:
Vilka [71]3 years ago
7 0

For a 4 by 4 cube, he needs 4 rows 4 high for 16 cubes in each row.

The back row is  3 x 4 = 12, so he needs 4 more for the back row,

The 3rd row he has 8, so needs 8 more.

The 2nd row he has 4 so needs 12 more,

The first row he has 2 so will need 14 more.

Total needed: 4 + 8 + 12 + 14 = 38 more cubes.

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3 years ago
What is the midpoint of the line segment with endpoints ( 3.5,2.2) and (1.5,-4.8)?
Fantom [35]

Answer:

Option A) (2.5,-1.3) is correct

The midpoint of the given line segment is M=(2.5,-1.3)

Step-by-step explanation:

Given that the line segment with end points (3.5, 2.2) and (1.5, -4.8)

To find the mid point of these endpoints midpoint formula is M=\left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right)

Let (x_1,y_1) be the point (3.5, 2.2) and (x_2, y_2) be the point (1.5, -4.8)

substituting the points in the formula

M=\left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right)

M=\left(\frac{3.5+1.5}{2}, \frac{2.2-4.8}{2}\right)

=\left(\frac{5}{2}, \frac{-2.6}{2}\right)

=\left(2.5,-1.3\right)

Therefore M=(2.5,-1.3)

The midpoint of the given line segment is M=(2.5,-1.3)

8 0
3 years ago
Please halp!This is very important to me!
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39. FALSE
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