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3 years ago

Please help me due tmm second question

Mathematics

1 answer:

AURORKA [14]3 years ago

6 0

Not sure if the math is correct but I think that it is $199.5

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Triangle ABC has vertices at A(-3, 5), B(0, 0), and C(6, 5). It is transformed so that Triangle A'B'C' has coordinates A'(1, 11)

Alisiya [41]

Jacob is incorrect. The transformation was no a reflection, but a translation. The transation was (x+11,y+6)(11 units rigth and 6 units up). (Explain what the points would have been if it was a reflection across the x-axis)

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3 years ago

A fast food restaurant executive wishes to know how many fast food meals teenagers eat each week. They want to construct a 99% c

Lana71 [14]

Answer:

The minimum sample size required to create the specified confidence interval is 2229.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

What is the minimum sample size required to create the specified confidence interval

This is n when $M = 0.06, \sigma = 1.1$

$0.06 = 2.575*\frac{1.1}{\sqrt{n}}$

$0.06\sqrt{n} = 2.575*1.1$

$\sqrt{n} = \frac{2.575*1.1}{0.06}$

$(\sqrt{n})^{2} = (\frac{2.575*1.1}{0.06})^{2}$

$n = 2228.6$

Rounding up

The minimum sample size required to create the specified confidence interval is 2229.

7 0

3 years ago

Which statements are true about the area of the

cupoosta [38]

Answer:

A=bh..I don't get for those numbers

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3 years ago

What is the national fruit of India?

ryzh [129]

The National fruit of India is Mango

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2 years ago

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Identify the slope and y-intercept for each equation below.<br> y=2x-5

sammy [17]

Answer:

Slope=2

y-intercept=-5

Step-by-step explanation:

This equation is in the form of y=mx+b

m is the slope and b is the y-intercept.

Therefore, the slope is 2 and the y-intercept is -5

5 0

3 years ago

Read 2 more answers