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3 years ago

At a warehouse, the employees can unload 18 trucks in 6 hours. What is the unit rate for unloading trucks?

Mathematics

1 answer:

const2013 [10]3 years ago

3 0

Wouldn't it be that the employee unloads 3trucks/hr because 18/6=3
:)

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Vadim26 [7]

Question four should be -7, question five should be 99, and question six should be 56.

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2 years ago

Read 2 more answers

Chris Johnson earns $34,850 annually as an engineer. She single on sports your father. The state tax rate in her state is 3% of

Natasha2012 [34]

Answer: 1,045.50

Step-by-step explanation: hope this helps champ.

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3 years ago

The minute hand of a clock is 7 inches long. How far does the tip of the minute hand move in 5 minutes? If necessary, round the

FromTheMoon [43]

The movement of the minute hand is circular.

Tangence speed is V=2Rπ/T= 2*7*3.14/3600 inches/sec=0.012211 inches/sec

The path (distance) that minute hand past is D=V*t = 0.012211 * 5 min= 0.012211 * 300sec=>

D=3.663≈3.66 inches

Good luck!!!

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3 years ago

Use the standard norml distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justif

dalvyx [7]

Answer:

E) we will use t- distribution because is un-known,n<30

the confidence interval is (0.0338,0.0392)

Step-by-step explanation:

Step:-1

Given sample size is n = 23<30 mortgage institutions

The mean interest rate 'x' = 0.0365

The standard deviation 'S' = 0.0046

the degree of freedom = n-1 = 23-1=22

99% of confidence intervals $t_{0.01} =2.82$ (from tabulated value).

$The mean value = 0.0365$

$x±t_{0.01} \frac{S}{\sqrt{n-1} }$

$0.0365±2.82 \frac{0.0046}{\sqrt{23-1} }$

$0.0365±2.82 \frac{0.0046}{\sqrt{22} }$

$0.0365±2.82 \frac{0.0046}{4.690 }$

using calculator

$0.0365±0.00276$

Confidence interval is

$(0.0365-0.00276,0.0365+0.00276)$

$(0.0338,0.0392)$

the mean value is lies between in this confidence interval

(0.0338,0.0392).

Answer:-

using t- distribution because is unknown,n<30,and the interest rates are not normally distributed.

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3 years ago

Use an exponent to write each expression

LUCKY_DIMON [66]

1- 3.6^2
2- 9^4
3- 4/5^4

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3 years ago