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3 years ago

What are the coordinates of the image of her text D after reflection across the X axis

Mathematics

1 answer:

pshichka [43]3 years ago

6 0

To reflect over the x axis you just multiply the y value by -1 . So your answer is (5,3)

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After 3 hours of of driving, Paul had gone 183 miles. What was his average rate of speed? Explain your answer.

torisob [31]

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$s(av) = \frac{∆x}{∆t} \\$

$s(av) = average \: \: speed$

$∆x = covered \: \: distance$

$∆t = time \: \: of \: \: the \: \: covered \: \: distance \\$

_________________________________

$s(av) = \frac{183}{3} \\$

$s(av) = 61 \: \: \frac{mile}{hour}$

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5 0

2 years ago

A baseball player hit 57 home runs in a season. Of the 57 home runs, 15 went to right field, 20 went to right center field, 1

Sidana [21]

Place the part (amount going to the left field), over the total amount of homerun:

(a) 2/57 is your probability

(b) Divide 2/57

2/57 = 0.035, or 3.5%

YES, it is unusual for this player to hit a home run to left field, for he only has a 3.5% chance.

hope this helps

8 0

3 years ago

Solve 4(-5)(-2)(-3) show your work<3 no links

laila [671]

Answer:

Step-by-step explanation:

4(-5)(-2)(-3)

= -20 × 6

= -120 (Ans)

5 0

3 years ago

Read 2 more answers

(9r^2+4r-7)+(3r^2-3r)

bixtya [17]

Answer:

12r2+r−7

Step-by-step explanation:

hope it helped

8 0

2 years ago

Adult entrance fees to amusement parks in the United States are normally distributed with a population standard deviation of 2.5

kondor19780726 [428]

Answer: 1.509

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

$E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 22

Level of confidence = 0.99

Significance level : $\alpha=1-0.99=0.01$

Using the t-distribution table ,

Critical value : $t_{n-1, \alpha/2}=t_{21,0.005}= 2.831$

Standard deviation: $\sigma=\text{ 2.5 dollars }$

Then, we have

$E=( 2.831)\dfrac{2.5}{\sqrt{22}}\approx1.509$

Hence, the margin of error for a 99% confidence interval for the population mean =1.509

4 0

3 years ago