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Veronika [31]
3 years ago
6

Can someone help me with this? I’ve been struggling with it for a couple days and it’s due today. I’ll give brainliest if you an

swer.

Mathematics
1 answer:
Ymorist [56]3 years ago
3 0

The equation of the line of reflection that reflects P onto P' is x = 0 since both are equal distances from that line

The equation of the line of reflection that reflects P' onto P'' is y = 0 since both are equal distances from that line

P'' can also be a rotation of point P where (0,0) is the center of rotation and it would have to turn 180 degrees

Hope that helps!

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A tire manufacturer is interested in testing the fuel economy for two different tread patterns. Tires of each tread type are dri
Minchanka [31]

Using the t-distribution, it is found that the 99% confidence interval for the difference is (0.058, 3.462).

We are given the <u>standard deviation for the samples</u>, hence, the t-distribution is used to solve this question.

The standard errors are given by:

s_A = \frac{1.79}{\sqrt{18}} = 0.4219

s_B = \frac{1.95}{\sqrt{18}} = 0.4596

For the distribution of differences, the <u>mean and the standard error</u> are given by:

\overline{x} = \mu_A - \mu_B = 23.95 - 22.19 = 1.76

s = \sqrt{0.4219^2 + 0.4596^2} = 0.6239

The interval is given by:

\overline{x} \pm ts

The critical value for a <u>two-tailed 99% confidence interval</u> with 18 + 18 - 2 = <u>34 df</u> is t = 2.7284.

Then:

\overline{x} - ts = 1.76 - 2.7284(0.6239) = 0.058

\overline{x} + ts = 1.76 + 2.7284(0.6239) = 3.462

The 99% confidence interval for the difference is (0.058, 3.462).

For more on the t-distribution, you can check brainly.com/question/16162795

3 0
3 years ago
(а+1) (а+2)-(а+1)(а-2)-а-1
umka21 [38]
If you would like to calculate (a + 1) * (a + 2) - (a + 1) * (a - 2) - a - 1, you can do this using the following steps:

(a + 1) * (a + 2) - (a + 1) * (a - 2) - a - 1 = a^2 + 2 * a + 1 * a + 2 - (a^2 - 2 * a + 1 * a - 2) - a - 1 = a^2 + 3 * a + 2 - a^2 + 2 * a - 1 * a + 2 - a - 1 = 3 * a + 3

The correct result would be 3 * a + 3.
7 0
3 years ago
Read 2 more answers
Find the amount of money in an account after 9 years if $2300 is deposited at 8% annual interest compounded quarterly
meriva

Answer:

4691.74

Step-by-step explanation:

A = P(1 + r/n)^nt

   = 2300(1 + .08/4)^(4 * 9)

   = 2300(1.02)³⁶

   = 2300 * 2.039887

   = 4691.74

4 0
3 years ago
CAN SOMEONE PLEASE HELP ME???
zmey [24]

Step-by-step explanation:

the graph A is represents the ordered pairs.

4 0
3 years ago
I’ll mark u as brainliest!!! Where could point E be located on the coordinate plane ?
ss7ja [257]

Answer:

2

Step-by-step explanation:

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