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UkoKoshka [18]
2 years ago
15

The edges of a cube are 5 centimeters each and the diagonal of a face is approximately 7 centimeters. What is the approximate ar

ea of the cross section passing through the diagonals of opposite faces of this cube?
A.
12 square centimeters
B.
25 square centimeters
C.
35 square centimeters
D.
49 square centimeters
Mathematics
2 answers:
telo118 [61]2 years ago
6 0

the answer is C

i did the test

Marina CMI [18]2 years ago
4 0

Answer: 35 square centimeters

Step-by-step explanation:

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find point p that divides segment AB into a 2:3 ratio. The point should be closer to A. A(-3,1) and B(3,5)
Mademuasel [1]
First, work out how much you need to add to A's x and y coordinates in order to get to point B from point A.

So (using Ax to mean x-coordinate of A, Ay the y-coordinate of A, etc):
x-difference = Bx - Ax = 3 - (-3) = 3 + 3 = 6
y-difference = By - Ay = 5 - 1 = 4

Now, if the point divides the segment AB in the ratio 2:3, then it is 2/(2+3) of the way along the line AB.

i.e. it is 2/5 of the way along the line AB.

We therefore need to add 2/5 of the x- and y-differences to point A to get point p:
px = Ax + (2/5)*(x-difference) = -3 + (2/5)*6 = -3 + 12/5 = -15/5 + 12/5 = -3/5 = -0.6
py = Ay + (2/5)*(y-difference) = 1 + (2/5)*4 = 1 + 8/5 = 5/5 + 8/5 = 13/5 = 2.6

Therefore coordinates of p are (-0.6, 2.6)
7 0
3 years ago
Write an expression to model the perimeter of the rectangle. Length is x-9 and width is 3x-4. Part b The perimeter of the rectan
koban [17]

Step-by-step explanation:

To find the perimeter of something, we add all of the measurements of the sides together.

A rectangle has 4 sides, this means we must double the algebraic hints given to us.

If we add them all up together it will look like this:

x-9+x-9+3x-4+3x-4=138

If we simplify it by collecting the like terms:

8x-26=138

We add 26 onto 138

8x=164

To find out what x equals, we divide by 8:

164÷8= 20.5

Answer:

x=20.5cm

x-9 is 11.5

3x-4 is 57.5

I know that you will not give 100 points but just wanted to help.

5 0
3 years ago
Read 2 more answers
There’s 2 answer options
Aleonysh [2.5K]

Answer:

yes their just 2 answer choices

8 0
3 years ago
19.43 as a mixed number.
WARRIOR [948]
<span>19 and 43/100................</span>
8 0
3 years ago
Please help ASAP!
marusya05 [52]

Answer:

Not a function

Step-by-step explanation:

This is not a function because there are different outputs for the same input.

8 0
3 years ago
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