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3 years ago

14

If I needed to drive 250 miles with the rental car, which company should I rent from to

1 answer:

marusya05 [52]3 years ago

5 0

There's not any options, but you should rent from a company who's interest rates are most affordable for the amount of days or miles it would take for you 250 miles

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Pleaseeeeee helppppp!!!!!

Paul [167]

$P=6\cdot\dfrac{1}{2}ah=3ah\\
a=3 \text{ ft}\\
h=2.6\text{ ft}\\\\
P=3\cdot3\cdot2.6=23.4 \text{ ft}^2 \Rightarrow B$

6 0

4 years ago

An occupational safety officer for a large company is conducting a study to investigate back problems in office workers who use

Oduvanchick [21]

Answer:

с. A matched pairs t-interval for a mean difference.

Step-by-step explanation:

With the sample, we will have possession of the sample mean and of the sample standard deviation, which means that the t-distribution will be used.

We want to find the mean number of back problems for each sample, and estimate the difference. Since the groups are similar, with only the positions in which they work being different, we have matched pairs. So the correct answer is given by option c.

7 0

3 years ago

(1) Let {v1,v2,v3} be a set of vectors in Rn . If u is Span {v1,v2,v3}, show that 3u is in Span {v1,v2,v3}.

Evgesh-ka [11]

Answer:

(1)

Multiplying by 3 both sides of the equality you get that

$3u = 3c_1v_1+3c_2v_2+3c_3v_3$

3u is in the Span of the vectors $\{v_1,v_2,v_3\}$ .

(2)

That's not true, consider the following counter example.

$v_1 = (0,0,0,1)\\v_2 = (0,0,1,0)\\v_3 = (0,1,0,0)\\v_4 = (1,0,0,0)\\u = (0,1,1,1)$

$u$ is a linear combination of $v_1,v_2,v_3$ but is NOT a linear combination of $v_1,v_2,v_3,v_4.$

Step-by-step explanation:

(1)

As the hint indicates, you know that

$u = c_1 v_1 + c_2v_2+c_3v_3$

Then, if you multiply both sides of the equality by 3, you get that

$3u = 3c_1v_1+3c_2v_2+3c_3v_3$

And that's it. 3u is in the Span of the vectors $\{v_1,v_2,v_3\}$

(2)

That's not true, consider the following counter example.

$v_1 = (0,0,0,1)\\v_2 = (0,0,1,0)\\v_3 = (0,1,0,0)\\v_4 = (1,0,0,0)\\u = (0,1,1,1)$

$u$ is a linear combination of $v_1,v_2,v_3$ but is NOT a linear combination of $v_1,v_2,v_3,v_4.$

4 0

3 years ago

An amount of $23,000 is borrowed for 11 years at 6.75% interest, compounded annually. If the loan is paid in full at the end of

Pavel [41]

Answer:

Given that,

An amount of $23,000 is borrowed for 11 years at 6.75% interest, compounded annually.

To find the Amount paid back after 11 years.

Explanation:

we know that,

The formula to find the,

Amount after n years of interest rate r% compounded annually is,

$A=P(1+\frac{r}{100})^n$

where P is the initial amount.

Here, we have that,

P=$23,000

r=6.75

n=11

Substitute the values we get,

$A=23000(1+\frac{6.75}{100})^{11}$

Solving this we get,

$A=23000(1+0.0675)^{11}$ $A=23000(1.0675)^{11}$ $A=23000(2.05138)$ $A=47181.805$

Round to the nearest dollar.

$A=47181.805\approx47182$

Answer is: Amount paid back is $47182 after 11 years

7 0

2 years ago

A Student has 1000 and buys a pen costing x naira and a book costing y naira. How much does the student have left

Sveta_85 [38]

Answer:

1000 -x -y

Step-by-step explanation:

thats the equation that you can use as the answer, i bealive there must be like a part b, where you are now supposed to input the values

3 0

4 years ago