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3 years ago

What is the value for the domain when the range is -3

Mathematics

1 answer:

emmainna [20.7K]3 years ago

8 0

I need more info. Slope? Y intercept? Is there a graph? Whats the equation?

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What kind of property is this −2.2+(−3.7+(−1.4))=(−2.2+(−3.7))+(−1.4) A. associative property B. communicative property C. oppos

MissTica

The associative property states : a + (b + c) = (a + b) + c....and this is what ur problem is.

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3 years ago

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Jackie has 1/3 of a Hershey bar.steven has 4/12 of a Hershey bar.How much do they have together?

Alisiya [41]

Since Jackie has 1/3 and Steven has 4/12 we add them together

4/12+1/3= 2/3

Together they have 2/3 of a Hershey Bar

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3 years ago

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The population standard deviation for the heights of dogs, in inches, in a city is 3.7 inches. If we want to be 95% confident th

Aleks04 [339]

Answer:

The minimum sample size that can be taken is of 14 dogs.

Step-by-step explanation:

The formula for calculating the minimum sample size to estimate a population mean is given by:

$n=\frac{z^{2}\sigma^{2}}{e^{2}}$

The first step is obtaining the values we're going to use to replace in the formula.

Since we want to be 95% confident, $1-\alpha=0.95 \Rightarrow \alpha=0.05$ .

Therefore we look for the critical value $z_{\alpha/2}=1.96$ .

Then we calculate the variance:

$\sigma = 3.7 \Rightarrow \sigma^{2}=13.69$

And we have that:

$e=2 \Rightarrow e^{2}=4$

Now we replace in the formula with the values we've just obtained:

$n=\frac{1.96^{2}*13.69}{4}=13.1479\approx 14$

Therefore the minimum sample size that can be taken to guarantee that the sample mean is within 2 inches of the population mean is of 14 dogs.

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3 years ago

QUICK What is the image of (9,2) after a reflection over the line Y= - x ?

Zolol [24]

There’s no picture attached..... if you attach one I can help!

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3 years ago

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Which set of points are collinear? P, T, Y D, S, Y H, T, S Y, D, H

Marizza181 [45]

Answer: P, T, Y

This is because the points on the line are straight

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3 years ago