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2 years ago

Please please help me on this.

Mathematics

1 answer:

quester [9]2 years ago

5 0

Answer:

Step-by-step explanation:

An equation in the form y=kx represents something increasing at a constant <u>rate</u>

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Answers for the 2 boxes please :)

Lapatulllka [165]

Answer:

-2,3

Step-by-step explanation:

x = -2

y = 3

..........

8 0

3 years ago

Mario was making cookies. He mixed 2½ cups of flour, 1¼ cups of sugar and ½ cup of brown sugar together in a bowl. How many cups

STatiana [176]

Answer:

4 1/4

Step-by-step explanation:

2 1/2 + 1 1/4 + 1/2 = 5/2 + 5/4 + 1/2

LCM = 4

5/2 x 2/2 = 10/4

5/4 = 5/4

1/2 x 2/2 = 2/4

10/4 + 5/4 + 2/4 = 17/4

= 4 1/4

Therefore he put 4 1/4 cups altogether.

7 0

2 years ago

Which of the following is the correct sl unit to use in measuring amount of material contained in a solid sphere

ruslelena [56]

Volume would be <span>the correct sl unit to use in measuring amount of material contained in a solid sphere... Hope this helps</span>

7 0

3 years ago

A standard New York car license plate has 3 letters followed by 4 numbers. If the letters and numbers can be repeated, the numbe

mel-nik [20]

since numbers and letters can be repeated it should be

26 x 26 x 26 x 10 x 10 x 10 x10 = 175,760,000

5 0

3 years ago

Read 2 more answers

Researchers measured the bone mineral desnsity of the spines of 94 women who had taken teh drug CEE. The mean was 1.016 g/cm2, a

Valentin [98]

Answer:

The 95% confidence interval for the mean is between 0.985g/cm² and 1.047 g/cm².

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:

$\alpha = \frac{1-0.95}{2} = 0.025$

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 $1-0.025 = 0.975$ , so $z = 1.96$

Now, find 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.

$M = 1.96*\frac{0.155}{\sqrt{94}} = 0.0310$

The lower end of the interval is the mean subtracted by M. So it is 1.016 - 0.0310 = 0.985 g/cm²

The upper end of the interval is the mean added to M. So it is 1.016 + 0.0310 = 1.047 g/cm²

The 95% confidence interval for the mean is between 0.985g/cm² and 1.047 g/cm².

6 0

3 years ago