SOLVE THESE 3 QUESTIONS WILL GIVE BRAINLIEST ASAP!

Mathematics

1 answer:

Fofino [41]3 years ago

7 0

Answer:

A: Neither is a better deal, they cost the same person cubic foot

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B: The large truck's volume is 2.3 times greater than the small truck's

C: At least: three vans, or two small trucks, or one large truck

Step-by-step explanation:

V=Lhw R=$/ft³

Vv=10.5(6)(6)

Vv=378 ft³

Rv=94.5/378

Rv= 25¢ per ft³

Vs=12(8)6.75

Vs=648 ft³

Rs=162/648

Rs=25¢ per ft³

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Vl=20(8.75)8.5

Vl=1487.5 ft³

1487.5=648n

2.295=n

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Evaluate the limit, if it exists. (if an answer does not exist, enter dne.) lim h→0 (5 + h)−1 − 5−1 h

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$\displaystyle\lim_{h\to0}\frac{(5+h)^{-1}-5^{-1}}h=\lim_{h\to0}\frac{\frac5{5(5+h)}-\frac{5+h}{5(5+h)}}h$
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Alternatively, recall that if $f(x)=\dfrac1x$ , then $f'(x)=-\dfrac1{x^2}$ , and so

$f'(5)=\displaystyle\lim_{x\to5}\frac{\frac1x-\frac15}{x-5}$

Take $h=x-5$ , so that $x=h+5$ , and we have the original limit. So the limit is equivalent to the value of $f'(5)$ , i.e.

$f'(5)=-\dfrac1{5^2}=-\dfrac1{25}$