3 years ago

PLEASE HELP PICTURE SHOWN

Mathematics

1 answer:

Verizon [17]3 years ago

8 0

The answer is A I think

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How would you write(-5,-1) (-3,-2) and(-3,2) if it is rotating 90° clockwise

miv72 [106K]

Answer:

(1,5) (2,3) (-2,-3)

Step-by-step explanation:

When we rotate a figure of 90 degrees counterclockwise, each point of the given figure has to be changed from (x,y) to (-y,x) and graph the rotated figure.

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3 years ago

What is the value of Y in the exponential decay function when x equals 2? y=2(0.8)x

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2 years ago

Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre

artcher [175]

Answer: The proportion of new car buyers that trade in their old car has statistically significantly decreased.

Step-by-step explanation:

Since we have given that

p = 48% = 0.48

n = 115

x = 46

So, $\hat{p}=\dfrac{46}{115}=0.40$

So, hypothesis would be

$H_0:\ p=\hat{p}\\\\H_a:p$

So, test value would be

$z=\dfrac{p-\hat{p}}{\sqrt{\dfrac{p(1-p)}{n}}}\\\z=\dfrac{0.48-0.40}{\sqrt{\dfrac{0.48\times 0.52}{115}}}\\\\z=\dfrac{0.08}{0.0466}\\\\z=1.72$

At 10% level of significance, critical value would be

z= 1.28

Since 1.28 < 1.72

So, we will reject the null hypothesis.

Hence, the proportion of new car buyers that trade in their old car has statistically significantly decreased.

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3 years ago

If y=6 when x=15 then which of thr following is the value of x when y=20

denis23 [38]

Answer:

if you meant x times y...

15 x 20 is 300.

if you meant x + y...

15 + 20 is 35.

if you meant anything else, please let me know

the way it was written confused me but I tried.

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2 years ago

How to do HELP me please

kipiarov [429]

It will chime 11 times during 8:15 a.m.-1:35 p.m.

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2 years ago