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lorasvet [3.4K]
3 years ago
12

TRANSLATIONS ON THE COORDINATE PLANE

Mathematics
1 answer:
klio [65]3 years ago
8 0

Answer:

idk

Step-by-step explanation:

idk

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Plz help its due TOMMOROW​
sashaice [31]

Answer:

  86%

Step-by-step explanation:

Let g represent the mean mark for the 10 girls in the class. Then the mean mark for the class was ...

  10g +20(62%) = 30(70%)

  g = 3(.7) -2(.62) . . . . . . . . . divide by 10 and subtract 2(.62)

  g = .86 = 86%

The mean mark for girls was 86%.

_____

You can do this in your head if you consider it in terms of deviations from the mean. The second equation above can be rewritten and factored as ...

  g = 70% +2(70% -62%)

That is, because there are 2 boys for every girl, the girl's score is above the mean by an amount that is 2 times the amount that the boy's score is below the mean. The boys' score is below by 8%, so the girls' score is above by 16%, so is 86%.

4 0
3 years ago
A painting is 16 in wide and 8 in tall if it is reduced to a height of 2 in then how wide will it be
allochka39001 [22]

Answer: 4 in. wide

Step-by-step explanation: to get from 8 to 2, you divide by 4.

if you divide 16 by 4, the answer is 4

7 0
3 years ago
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A new company spent $9,399.74 on 24 tablets for their employees. How much did each tablet cost? Round your answer to the nearest
Nitella [24]

$391.655 or $391.66 per table

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4 years ago
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jake can carry 6 1/4 pounds of wood in from the barn. his father can carry 1 5/7 times as much as jake. how many pounds can jake
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Dear Jat2324, Jake's father can carry 10 5/7 pounds of wood.
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7 0
3 years ago
Which expressions are equivalent to the one below. Check all that apply. 16^x
madam [21]

A.\ 4^x\cdot4^x=4^{x+x}=4^{2x}\qquad\text{used}\ a^n\cdot a^m=a^{n+m}\\\\B.\ 4^{2x}=(4^2)^x=16^x\qquad\text{used}\ (a^n)^m=a^{nm}\\\\C.\ 4^2\cdot4^x=4^{2+x}\\\\D.\ (4\cdot4)^x=16^x\\\\E.\ 4\cdot4^{2x}=4^{1+2x}\\\\F.\ 4\cdot4^x=4^{1+x}\\\\Answer:\ \boxed{B.\ and\ D.}

3 0
4 years ago
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