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2 years ago

1. Which of these is an example of acceleration?

Mathematics

2 answers:

JulijaS [17]2 years ago

8 0

Answer:

Step-by-step explanation:

because

a - if you're coasting, you're not gaining any speed.

b - it's parked, therefore it isnt moving.

c - if you slam on your brakes, you're stopped.

Alja [10]2 years ago

3 0

Answer:

Step-by-step explanation:

because speed means acceleration and the speed of something

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Can someone pleeeeease help me!!

charle [14.2K]

Answer:

I’m pretty sure it’s 73% but I’m not completely sure

6 0

3 years ago

Rearrange to make x the subject of 4(x-3)/a=y

IrinaVladis [17]

Answer: x = a*y + 3

Step-by-step explanation:

To make x the subject of the equation, first, we open the bracket

4x - 12/a = y

Then cross multiply:

4x - 12 = a * y ( a*y means the product of the two variables)

Add 12 to both sides of the equation

4x = a*y + 12

Divide both sides by 4 to get the value of x

x = a * y + 12/4

x = a*y + 3

I hope this helps.

4 0

2 years ago

How do i calculate percent accuracy? I got 20 questions out of 21 correct but I need to figure out the percent accuracy for anot

Mandarinka [93]

You need to do 20 divide by 21 to get a decimal. Then if you multiply the decimal by hundred you should get the percentage.

7 0

3 years ago

What number can be add to <br><img src="https://tex.z-dn.net/?f=%20%7B9x%7D%5E%7B2%7D%20%20%2B%2024x" id="TexFormula1" title=" {

4vir4ik [10]

The required number will be 16

the expression will be like :

$9 {x}^{2} + 24x + 16$

$(3x) {}^{2} + (2 \times 3x \times 4) + (4) {}^{2}$

$(3x + 4) {}^{2}$

hope it helps you cap !!

Anti - Venom

5 0

3 years ago

27. The average hourly wage of workers at a fast food restaurant is $7.25/hr

morpeh [17]

Answer:

0.0668 = 6.68% probability that the worker earns more than $8.00

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

The average hourly wage of workers at a fast food restaurant is $7.25/hr with a standard deviation of $0.50.

This means that $\mu = 7.25, \sigma = 0.5$