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2 years ago

A data set has a mean of x = 71 and a standard deviation of 11.6. Find the z-score for each of the following.

Mathematics

1 answer:

olchik [2.2K]2 years ago

5 0

Answer:

WHY MUST I CRYYYYY

Step-by-step explanation:

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Tom drove 605 miles in 11 hours. How many miles would he drive in 9 hours

german

I think the answer would be 99

you multiply 9 and 11 and get 99

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3 years ago

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Angle x and y are complementary. Angle x is supplementary to a 128º angle.

tiny-mole [99]

Answer:

x = 52

y = 38

Step-by-step explanation:

Angle x is supplementary to a 128º angle.

Supplementary angles add to 180

x+128 = 180

Subtract 128 from each side

x+128-128 = 180-128

x =52

Angle x and y are complementary.

Complementary angles add to 90

x+y =90

52+y =90

Subtract 52 from each side

52-52 +y = 90-52

y = 38

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3 years ago

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How I start step by step

valentina_108 [34]

It’s finding the area but with more numbers so start from the bottom and work your way up

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2 years ago

Mark works at a shoe store for 30 hours a week and earns $8.75. During one week Mark sold $480 in shoes. If he receives a 5% com

Pavel [41]

(30×8.75)+(480×.05)=262.50+24=$286.50

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3 years ago

The length of the subway is 850 miles. If .15 inch represents 45 miles, what is the length of the subway on the map?

Scilla [17]

Answer:

The length of the subway on the map is $2.83\ inches$

Step-by-step explanation:

we know that

The scale on the map is equal to the length of the subway on the map divided by the length of the subway in the actual

Let

z------> the scale on the map

x------> the length of the subway on the map

y------> the length of the subway in the actual

$z=\frac{x}{y}$

In this problem we have

$z=\frac{0.15}{45}\frac{inches}{miles}$

$y=850\ miles$

substitute and solve for x

$\frac{0.15}{45}=\frac{x}{850}$

$x=850*\frac{0.15}{45}=2.83\ inches$

6 0

3 years ago

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