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2 years ago

7

it took 48 minutes to drive downtown. An app estimated it would be less than that. If the error was 20%, what was the apps estim

ate?

1 answer:

natulia [17]2 years ago

8 0

Answer:

38.4

Step-by-step explanation:

it took 48 minutes and the app miss estimated by 9.6, which is 20% of 48. So subtract 9.6 from 48 and you will get 38.4

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Simplify the product using FOIL. (3x + 4)(2x – 6)

Arturiano [62]

Answer:

6x^2 - 10x - 24

Step-by-step explanation:

Do 3x times 2x which is 6x^2
Do 3x times - 6 which is -18x
Do 4 times 2x which is 8x
Do 4 times - 6 which is - 24
You get 6x^2 - 18x + 8x - 24
Simplyify to get the answer

5 0

3 years ago

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Find f(x) = 12/4x+2 find f(-1)

NeTakaya

X=-1
12/-4=-3
-3+2=-1
The correct answer is -1

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2 years ago

A sample of n = 9 college students is used to evaluate the effectiveness of a new Study Skills Workshop. Each student’s grade

forsale [732]

Answer:

B) μD = 0.60 ± 0.10(1.397)

Step-by-step explanation:

The confidence interval is given by:

$MD±t_{\alpha/2, n-1} \frac{s}{\sqrt{n} }$

Where

MD=60

n=9

df=n-1=8

$t_{\alpha/2, n-1}=1.397$

$s=\sqrt{0.09} =0.3$

Then the confidence interval is

μD=0.60±1.397*(0.3/√9)

μD=0.60±0.10*(1.397)

6 0

3 years ago

elena55 [62]

Answer:

3/8

Step-by-step explanation:

3/4 divided by 2> 3/4 divided by 2/1>3*1=3 4*2=8 so therefore your answer is 3/8

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3 years ago

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5th grade math. correct answer will be marked brainliest.

Alex17521 [72]

Answer:

I think it's like the top answer is 6 the bottom 36.

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