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Genrish500 [490]

2 years ago

13

Car Survey: In a survey of 2,400 people who owned a certain type of car, 1,680 said they would buy that type of car again. What

percent of the people surveyed were satisfied with the car?

1 answer:

Umnica [9.8K]2 years ago

5 0

Answer:

70 percent

Step-by-step explanation:

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The curve with equation y=e^2x/4+3e^x has one stationary point.find the exact value of the coordinates of this point

Softa [21]

$y=\dfrac{e^{2x}}{4+3e^x}$
$\implies y'=\dfrac{2e^{2x}(4+3e^x)-3e^xe^{2x}}{(4+3e^x)^2}$
$\implies y'=\dfrac{8e^{2x}+3e^{3x}}{(4+3e^x)^2}$

Stationary points occur where the derivative is zero. The denominator is positive for all $x$ , so we only need to worry about the numerator.

$8e^{2x}+3e^{3x}=e^{2x}(8+3e^x)=0$

$e^{2x}>0$ for all $x$ , so we can divide through:

$8+3e^x=0\implies e^x=-\dfrac83$

But $e^x>0$ for all $x\in\mathbb R$ , so this function has no stationary points...

I suspect there may be a typo in the question.

6 0

3 years ago

What’s the solution for 6(2m - 3) - 3m= 2m - 18 + m

katen-ka-za [31]

Answer:

12m-18-3m=2m+m-18

9m-18= 3m-18

9m-3m=18-18

6m=0

m=0/6=0

Step-by-step explanation:

5 0

3 years ago

Please someone help me if you can't that is okay but please try I am extremely desperate

Snowcat [4.5K]

A, you combine like terms

7 0

2 years ago

Read 2 more answers

Let U = {all integers}.

elixir [45]

All integer numbers are either even or odd. So, the complement to the set B (to the set of all even integers) is the set of all odd integers, that is D.

The integer number of the form 2x is always even, because it is always divided by 2, so the set C is the empty set.

Numbers 1, 3, 5, 7 are odd, therefore they belong to the set D.

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3 years ago

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What fraction is equivalent of the repeating decimal 2.5

kirill115 [55]

Answer:

5/2

Step-by-step explanation:

8 0

3 years ago