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3 years ago

7

A particular hybrid car travels approximately 264 miles on a 6 gallon of gas. Find the amount of gas required for an 836 mile tr

ip

1 answer:

Fofino [41]3 years ago

6 0

19

x = (836/264)*6

yeet filler

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Which expression is equivalent to r^9/r^3

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$\cfrac{r^9}{r^3} =r^{9-3}=r^6$

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3 years ago

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Solve this equation for x. Round your answer to the nearest hundredth. 7 = ln(x + 3)

Nesterboy [21]

E^7 = x +3
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(Use Calc)

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3 years ago

A newspaper charges $3 per line for the first 4 lines plus a $20 to advertise.

sineoko [7]

Answer:

it is 32

and it is continuous

Step-by-step explanation:

And for the last one is the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

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3 years ago

What is/are the variable(s) in this expression: 6a-7b+8

Tomtit [17]

Answer:

a , b

Step-by-step explanation:

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3 years ago

The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (2008 data). The average c

ivanzaharov [21]

Answer:

$n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94$

So the answer for this case would be n=94 rounded up to the nearest integer

Step-by-step explanation:

Information given

$\bar X$ represent the sample mean

$\mu$ population mean (variable of interest)

$\sigma= 500$ represent the population standard deviation

n represent the sample size

Solution to the problem

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{s}{\sqrt{n}}$ (a)

And on this case we have that ME =120 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The confidence2 level is 98% or 0.98 then the significance level would be $\alpha=1-0.98=0.02$ and $\alpha/2=0.01$ , the critical value for this case would be $z_{\alpha/2}=2.326$ , replacing into formula (b) we got:

$n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94$

So the answer for this case would be n=94 rounded up to the nearest integer

8 0

3 years ago