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Ann [662]
1 year ago
9

Pls help with this question ASAP

Mathematics
1 answer:
Crank1 year ago
6 0

hduodoydiyd9ydiydoyeykdoyx95eeykyei6djj

Step-by-step explanation:

a) 5

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The scores on a mathematics exam have a mean of 70 and a stadard deviation of 7. Find the x-value that corresponds to the z-scor
mylen [45]

Answer:

59.85

Step-by-step explanation:

The scores on a mathematics exam have a mean of 70 and a stadard deviation of 7. Find the x-value that corresponds to the z-score -1.45.

We solve the above question using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = 70

σ is the population standard deviation = 7

z = -1.45

Hence:

-1.45 = x - 70/7

Cross Multiply

-1.45 × 7 = x - 70

-10.15 = x - 70

x = -10.15 + 70

x = 59.85

7 0
3 years ago
Hi there can anyone help me with this please
kipiarov [429]
I think it is 64. you add all of them together and hten divide it by 6.
3 0
3 years ago
Find an equation of the line that passes through the point (-6,7) and is perpendicular to the line 12x-18y-72=0
madreJ [45]

Answer:

y=-1.5x-2

Step-by-step explanation:

18y=12x-72

3y=2x-12

y=2/3x-4

Slope=-1.5

7=-6(-1.5)+b

7=9-2

4 0
3 years ago
What is the common factor among xy2 and x2y ?
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Answer:

xy.

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7 0
3 years ago
It's Mean Median Mode Range
Rufina [12.5K]

Answer:

I believe the median is 21

hope this helps

4 0
3 years ago
Read 2 more answers
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