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anzhelika [568]
3 years ago
9

When I multiply by 4, add 12, divide by 2, then square root, I get 10. What number did I start with?

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
8 0

Answer:

22

Step-by-step explanation:

To begin, the most reasonable way of figuring out the answer is creating an equation.

In that case, we can represent all possible numbers with the variable "N"

We basically have that 4n + 12 divided by 2 = 100 (because 10^2 = 100)

Simplifying:

4n + 12  ÷  6 = 100

Multiplying each side by 6:

24n + 72 = 600

Subtracting 72:

528

Dividing by 24:

N = 22

<u>Check:</u>

22 * 4 =  88. 88 + 12 = 100. Square rooting gives 10. Thus, an answer that the number you started with was 22 is correct.

Karo-lina-s [1.5K]3 years ago
7 0

Answer:

4

Step-by-step explanation:

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3721nm equals how many m
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Answer:

0.000003721m

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8 0
3 years ago
Write the equation of the line that passes through (-1, 3) and is parallel to the line y = -x + 1.
ra1l [238]

Answer:

Step-by-step explanation:

y = -x + 1......same as y = -1x + 1.....in y = mx + b form, ur slope is in the m position....so the slope of this line is -1.

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(-1,3)...x = -1 and y = 3

slope(m) = -1

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so ur parallel equation is : y = -1x + 2...or just y = -x + 2

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3 years ago
Identify the slope and the y-intercept of the following line!<br> y=-5+17/8x
hichkok12 [17]

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5 0
3 years ago
. 7/8 = /48<br> A. 6<br> B. 1<br> C. 13<br> D. 42
hodyreva [135]
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x=(7)(48/8)
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