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miss Akunina [59]

2 years ago

7

William hikes at a constrant rate , converting 6 miles in 2 hours, which expression represents how many miles william hikes in 4

hours?
A). 1/3 h
B). 1/2 h
C). 2h
D). 3h

1 answer:

yulyashka [42]2 years ago

6 0

The answer is D
6/2=3 miles per hour

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A worker at an automobile assembly plant checks new cars for defects. Of the first 280 cars

kifflom [539]

Answer:

i predict the 150 will have defects

Step-by-step explanation:

you do 280 divided by 4 which gives you 70

then 10,500 divided by 70 which gives you

4 0

2 years ago

hello i was trying to get the understanding on how is 4-6+6=4,,,,,,,my answer (4-6=2+6=8) but me being in high school i know its

frozen [14]

Thanks for the question!

4 - 6 + 6

We can make this easier by doing it one step at a time. First, lets do 4 - 6.

4 - 6 + 6
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Now, solve:

-2 + 6
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Hope this helps!

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3 years ago

An animal shelter rescues cats and dogs only. Currently the animal shelter has 121 animals. The amount of dogs is 6 more than 4

aleksklad [387]

Answer:

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3 0

3 years ago

What is 3008.672 multiplied by 626.7624?

Elina [12.6K]

1885722.484 is your answer

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5 0

3 years ago

Read 2 more answers

A forestry researcher wants to estimate the average height of trees in a forest near Atlanta, Georgia. She takes a random sample

marusya05 [52]

Answer:

The margin of error for her confdence interval is of 0.3757.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 18 - 1 = 17

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 17 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.99}{2} = 0.995$ . So we have T = 2.8982

The margin of error is:

$M = T\frac{s}{\sqrt{n}}$

In which s is the standard deviation of the sample and n is the size of the sample.

Standard deviation of 0.55 meters.

This means that $s = 0.55$

What is the margin of error for her 99% confidence interval?

$M = T\frac{s}{\sqrt{n}}$

$M = 2.8982\frac{0.55}{\sqrt{18}}$

$M = 0.3757$

The margin of error for her confdence interval is of 0.3757.

7 0

2 years ago