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2 years ago

14

"Cheetahs are the fastest mammals in the world. The can reach speeds of 70 miles per hour. At this speed, how long would it take

a cheetah to run 17 miles?" (I need an equation to solve, but an answer as well would be nice. Thanks, y'all)

1 answer:

goblinko [34]2 years ago

7 0

17=70h
Divide each side by 70
It would be 14 mins and 33 seconds

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Deffense [45]

Step-by-step explanation:

$=> 2 {x}^{2} + \frac{7}{2}x + \frac{3}{4} = 0$

$=> \frac{8 {x}^{2} + 14x + 3}{4} = 0$

$=> 8 {x}^{2} + 14x + 3 = 0$

$=> 8 {x}^{2} + 12x + 2x + 3 = 0$

$=> 4x(2x + 3) + 1(2x + 3) = 0$

$= > (2x + 3)(4x + 1) = 0$

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option C

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3 years ago

solniwko [45]

Answer:

$3.49

Step-by-step explanation:

-The z value is calculated by the formula:

$z=\frac{\bar x -\mu}{\sigma}$

Where $\mu, \sigma$ are the mean and standard deviation respectively and $\bar x$ is the price of the random selection.

#We substitute and solve for $\mu$ :

$z=\frac{\bar x -\mu}{\sigma}\\\\1.6=\frac{4.29-\mu}{0.5}\\\\0.8=4.29-\mu\\\\\mu=3.49$

Hence, the mean price of a box of cereal is $3.49

6 0

2 years ago

ahrayia [7]

<span>34m = 30m
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6 0

3 years ago

Read 2 more answers

Mrs. Jones Algebra 2 class scored very well on yesterday's quiz. With one exception, everyone received an A. Within how many sta

dem82 [27]

Answer: option B. 2

Explanation:

1) Find the mean:

mean = sum of the values / number of data

The number of data is 12, so:

mean = (91 + 92 + 94 + 88 + 96 + 99 + 91 + 93 + 94 + 97 + 95 + 97) / 12

mean = 1127 /12 = 93.917

2) Find the variance:

variance = sum of squares of the differences between each data and the media, divided by thenumber of data - 1

variance = (106.97)/(12-1) = 106.97 / 11 = 9.720

3) Find the standard deviation

standard deviation = square root of variance = √(9.720) = 3.118

4) Find the difference of the maximum and the minimun grades with the media:

maximum grade: 99 - 93.917 = 5.083

Find how many standard deviations that is: 5.083 / 3.118 = 1.63

minimum grade: |88 - 93.917| = 5.917

Find how many standard deviations that is: 5.917 / 3.118 = 1.9

5) Conclusion: all the quiz grades falls inside 2 standard deviations form the mean.

3 0

3 years ago

Cross<br> multiply<br> 72/18 by S/16

Anarel [89]

Answer:

s=64

Step-by-step explanation:

so we would multiply s by 18 and 16 by 72

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we can then divide both sides by 18 to simplify

s=64

7 0

3 years ago