3 years ago

Pleases help me quick

1 answer:

8 0

Option one is 67 cents per candy bar.
option two is 60 cents per candy bar.
option two would help you to get more for your money :)

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Sam is practicing long track speed skating at an skating ring. The distance around the rink is 250 yards . He skated around thr

pentagon [3]

3 miles = 5,280 yards

6(250) = 1,500 yards

5,280 - 1,500 = 3,780 yards

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3 years ago

Find the value of x in the parallelogram below.

Dennis_Churaev [7]

Answer:

129

Step-by-step explanation:

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2 years ago

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alex41 [277]

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tresset_1 [31]

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3 years ago

The diameter of a spindle in a small motor is supposed to be 4.1 millimeters (mm) with a standard deviation of 0.1 mm. If the sp

adoni [48]

Answer:

The null hypothesis is $H_0: \mu = 4.1$

The alternate hypothesis is $H_a: \mu \neq 4.1$

Step-by-step explanation:

The diameter of a spindle in a small motor is supposed to be 4.1 millimeters

This means that the null hypothesis is that the diameter has the supposed value, that is, $H_0: \mu = 4.1$

If the spindle is either too small or too large, the motor will not work properly. The manufacturer measures the diameter in a sample of 41 spindles to determine whether the mean diameter has moved away from the required measurement.

Tests if it has moved away, that is, if the mean is different from the specified value of 4.1. So the alternate hypothesis is $H_a: \mu \neq 4.1$

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3 years ago