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PilotLPTM [1.2K]
3 years ago
13

Math 8th grade test help help

Mathematics
1 answer:
Rufina [12.5K]3 years ago
5 0

Answer:

D

Step-by-step explanation:

D has a repeating x value. Functions are only supposed to have one input for everyone output. ( no repeating x values)

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reflect coordinates A(0,1) B(2,-4) C(-2,-4) over the y-axis, what is the new coordinates for points A' B' and C' ?
VLD [36.1K]

Answer:

- 18369919

Step-by-step explanation:

Hope that helps!

6 0
3 years ago
24. The relative frequency of getting a HEAD when tossing a coin is ⅜. How many HEADS would you expect if the coin is tossed 400
Finger [1]
3/8 probability × 400 times = 150 heads
5 0
3 years ago
The perimeter of a rectangle is 40 inches. If the length is four less than twice the width, find the dimensions and area
Vinvika [58]

Answer:

<u>L = 12 inches and W = 8 inches</u>

<u>Area = 96 in^2</u>

Step-by-step explanation:

Perimeter(P) = 2(width) + 2(length)

Let W = width and L = length

P = 2W + 2L

L = 2W - 4

Substitute:  P = 2W + 2(2W - 4)

P = 6W - 8

P = 40 inches

40 = 6W - 8

6W = 48

W = 8

L = 2W - 4

L = 2(8) - 4

L = 12

<u>L = 12 inches and W = 8 inches</u>

<u>===============================</u>

Check to see if this works:  

P = 2W + 2L

P = 2(12) + 2(8)

P = 24 + 16

P = 40 inches  <u>YES</u>

<u>========</u>

Area = WxL

Area = (12)*(8)

<u>Area = 96 in^2</u>

7 0
2 years ago
Let A = {−2, −1, 0, 1, 2, 3, 4, 5, 6} and define a relation R on A as follows: For all (m, n) is in A, m R n ⇔ 5|(m2 − n2). It i
anastassius [24]

Answer:

Step-by-step explanation:

find the attached answer below

3 0
3 years ago
Which expression is equivalent to the expression below? p+p+p+p+p+p+q+q+q+q p+p+p+p+p+p+q+q+q+q
Likurg_2 [28]
I am not sure if this is the type of expression that the question is asking for, but it could be 12p + 8q :)
8 0
3 years ago
Read 2 more answers
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