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3 years ago

45 mi per hour is = x ft/sec

Mathematics

2 answers:

labwork [276]3 years ago

6 0

45miles/1hour = 237,600 feet/3600seconds

Aleonysh [2.5K]3 years ago

4 0

Since 1 mile per hour is 1.46666667 feet / second, then 45 miles per hour are approximately 66.15 feet per second.

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The gold leaf on your necklace is 0.000045 of an inch thick. How do you write 0.000045 in scientific notation?

vampirchik [111]

0.000045 = <span>00.00045 /10
=</span><span> 000.0045 / 100
</span>= 0000.045 / 1 000
= 00000.45 / 10 000
<span>= 000004.5 / 100 000 = 4.5 * 10^(-5)

That is in</span><span> scientific notation

I hope that helps

</span>

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3 years ago

Which of the following is an example of a quadratic equation?

PIT_PIT [208]

Answer:

Step-by-step explanation:

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2 years ago

A triangle has sides of length 8 cm, 5 cm, and 5 cm. How many unique

sdas [7]

Answer: I think it’s 2

Step-by-step explanation: because either of the sides are equal or the base and a side is not possible.

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3 years ago

Read 2 more answers

Answer this please and the first person to do it will get Branilest !! Don’t forget to explain

Mandarinka [93]

Answer:

$3g + 9g = - 48 \\ 12g = - 48 \\ g = - \frac{48}{12} \\ g = - 4 \\ \\ - 4m - 6m - 30 = - 80 \\ - 4m - 6m = - 80 + 30 \\ - 10m = - 110 \\ m = \frac{ - 110}{ - 10} \\ m = 11 \\ \\ 12 = - 8n - 24 - 4n \\ 12 + 24 = - 8n - 4n \\ 36 = - 12n \\ n = \frac{36}{ - 12} \\ n = - 3 \\ \\ 5y + 2y + \frac{1}{2} = - \frac{1}{2 } \\ 5y + 2y = - \frac{1}{2} - \frac{1}{2} \\ 7y = - 1 \\ y = - \frac{1}{7} \\ \\ 22x + 0.25 - 16x = 0.85 \\ 22x - 16x = 0.85 - 0.25 \\ 6x = 0.6 \\ x = \frac{0.6}{6} \\ x = 0.1 \\ \\ 17k + 6k + 11 = 80 \\ 17k + 6k = 80 - 11 \\ 23k = 69 \\ k = 3$

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3 years ago

The standard deviation for a set of data is 9.5. The mean is 205.

Anon25 [30]

If the standard deviation for a set of data is 9.5. The margin of error is: 19.5.

<h3>Margin of error</h3>

Using this formula

Margin of error=Standard deviation×Mean

Let plug in the formula

Margin of error=205 × 9.5%

Margin of error = 19.475

Margin of error = 19.5 (Approximately)

Therefore If the standard deviation for a set of data is 9.5. The margin of error is: 19.5.

Learn more about margin of error here:brainly.com/question/14420824

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2 years ago