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3 years ago

What is the image of the point (-7,-8)(−7,−8) after a rotation of 270 counterclockwise about the origin?

Mathematics

1 answer:

patriot [66]3 years ago

8 0

Answer:

A' (8,-7)

B' (8,-7)

When rotating a point 270 degrees counterclockwise about the origin our point A(x,y) becomes A'(y,-x). This means, we switch x and y and make x negative

Step-by-step explanation:

Hope this helps! （づ￣3￣）づ╭❤～

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UkoKoshka [18]

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3 0

3 years ago

How can you use a strip diagram to convert 136 ounces into cups

matrenka [14]

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I will show you how to do it.
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4 years ago

The segments shown below could form a triangle. A. True B. False

Pavel [41]

Answer:

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3 years ago

The quality manager at Bestiful Company is certifying a new process that must produce 95% (or better) good product before the pr

Nadya [2.5K]

Answer:

The calculated value Z= -0.5822

|z| = |-0.5822|< 2.576 at 0.01 level of significance

Hence null hypothesis is accepted

The quality manager at Restful Company is certifying a new process that must produce 95% (or better) good product

Step-by-step explanation:

Explanation:-

Step:-(i)

The Population proportion is P = 95% =0.95

A sample of 40 containers from the process line are tested, and 93% are found to be good

Sample size ( n) =40

The sample proportion 'p' = 0.93

Level of significance (α )= 0.01.

Null hypothesis:-p = 95%=0.95

Alternative hypothesis:- p≠0.95

The test statistic

$Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }$ (i)

Step:(ii)

substitute all values in (i)

$Z = \frac{0.93-0.95}{\sqrt{\frac{0.95X0.05}{40} } }$

Z = -0.5822

The calculated value Z= -0.5822

|z| = |-0.5822|< 2.576 at 0.01 level of significance

Hence null hypothesis is accepted

Conclusion:-

The quality manager at Restful Company is certifying a new process that must produce 95% (or better) good product

4 0

3 years ago

Look at the pic please

ExtremeBDS [4]

Since we know the slope of the line and a point that passes through it, we can use the point-slope form formula to determine the equation of the line.

Point slope form formula:

$\text{ y - (y-coordinate of point) = slope(x - x-coordinate of point)}$