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luda_lava [24]
2 years ago
14

Please hurry need done asappppp

Mathematics
1 answer:
zavuch27 [327]2 years ago
8 0

Answer:

1

Step-by-step explanation:

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The table shows a direct variation.
marin [14]
The answer would be 4
8 0
3 years ago
Find the value of y.
snow_tiger [21]

Answer:

  y = √55

Step-by-step explanation:

All the triangles are similar, so the ratio of short side to hypotenuse is the same for all:

  5/y = y/(5+6)

  y^2 = 55

  y = √55

_____

<em>Comment on the geometry</em>

There are three "geometric mean" relationships that apply to this geometry.

  1. the altitude BD is the geometric mean of BC and BA (√30)
  2. the long side of the large triangle is the geometric mean of the longer segment of the hypotenuse and the whole hypotenuse (x = √66)
  3. the short side of the large triangle is the geometric mean of the shorter segment of the hypotenuse and the whole hypotenuse (y = √55)

If you were aware of the last of these relationships, you could write down the answer without any "work."

  y = √(5(5 +6)) = √55

__

The geometric mean is the n-th root of the product of n numbers. When there are 2 numbers, it is the square root of their product.

4 0
3 years ago
A sugar cube is inch on each edge. How much volume does it occupy?
Serhud [2]

Hello from MrBillDoesMath!

Answer:

1 cubic inch.

Discussion:

If each side of the sugar cube is 1, the volume, which is the product of the length, width, and height, equals

1 * 1 *1  =

1 cubic inch.


Thank you,

MrB

5 0
3 years ago
the ratio of girls to boys in the math club was 3.5. if there were 120 children altogether, how many girls were there?
sergejj [24]

3 girls to 5 boys

3+5 =8

120/8 = 15

3 *15 = 45 girls


5 0
3 years ago
Can some on help me on this question?
mario62 [17]

Answer:

x=10 and x-7 is the answer

Step-by-step explanation:

a)2x-7=13

2x=13+7

2x=20

x=20/2

x=10

b)3x+4=25

3x=25-4

3x=21

x=21/3

x=7

i hope it will help you

6 0
3 years ago
Read 2 more answers
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