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3 years ago

What number goes in the missing space?

Mathematics

2 answers:

blsea [12.9K]3 years ago

8 0

The number should be 20

Natali5045456 [20]3 years ago

4 0

So to get from 4 to 8 you multiply by 2. To get from 8 to 16 you multiply by 2. So for the missing number, 10 times 2=20. The missing number should be 20. To check our work, 20 times 2 equals 40. So the missing number is 20. Hope this helps! ;)

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P=2L +2W;P=32,W=7 25 16 12.5 9

Marianna [84]

Answer:

L = 9

Step-by-step explanation:

Assuming you are trying to find L

P = 2L + 2W

P = 32

32 = 2L + 2W

W = 7

32 = 2L + (2 × 7)

32 = 2L + 14

2L = 32 - 14

2L = 18

L = 9

5 0

3 years ago

Which point is not on the graph represented by y=x^2+2x-4

Illusion [34]

$(-6,20) \\
x=-6 \\ y=20 \\ \Downarrow \\
20 \stackrel{?}{=} (-6)^2+2 \times (-6)-4 \\
20 \stackrel{?}{=} 36-12-4 \\
20 \stackrel{?}{=} 20 \\
20 = 20 \\
\hbox{the point is on the graph}$

$(-4,4) \\
x=-4 \\ y=4 \\ \Downarrow \\
4 \stackrel{?}{=} (-4)^2+2 \times (-4)-4 \\
4 \stackrel{?}{=} 16-8-4 \\
4 \stackrel{?}{=} 4 \\
4 = 4 \\
\hbox{the point is on the graph}$

Both points are on the graph.

3 0

3 years ago

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julia-pushkina [17]

Answer:

Step-by-step explanation:

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2 years ago

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Make x the subject of the formula w − y x = z

Licemer1 [7]

Answer:

hmm ..

just transfer the X at the right side and others on left side

Step-by-step explanation:

so you get

w-z = yx

so later

(w-z)/y = x

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3 years ago

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Black_prince [1.1K]

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2 years ago