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3 years ago

-4 1/4 divided by 2 3/4

Mathematics

2 answers:

yarga [219]3 years ago

8 0

Answer:

-1.5

Step-by-step explanation:

Burka [1]3 years ago

4 0

Exact form -17/11 decimal form -1.54 mixed number -1 1/6

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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

hodyreva [135]

Answer:

$16a^2b^4$

Step-by-step explanation:

<u>GCF= Greatest Common Factor</u>

Given a polynomial, the GCF is the largest polynomial that will divide evenly into that polynomial.

The polynomial is

$16a^4b^4 + 32a^3b^5 - 48a^2b^6$

First, we find the GCF of the coefficients:

16, 32, 48

Since 32 and 48 are multiples of 16, 16 is the GCF of the coefficients.

Now we select all the repeating variables with their smallest exponent:

$a^4, a^3, a^2.\ GCF= a^2$

$b^4, b^5, b^6.\ GCF=b^4$

The GCF of the polynomial is

$\boxed{16a^2b^4}$

7 0

3 years ago

you play a game where you score -6 points on the first turn and on each of the next 3 turns. What is your score after those 4 tu

AlekseyPX

-8 because if u divided-6/2 u get -2 then u add -6+-2 and get -8

3 0

3 years ago

Please help me idk this

tatiyna

Answer:

2.25

Step-by-step explanation:

The question gives us one hint. That side of the square is 1.5"

Because it gives us that, we can use that to find the area. Because it is a square, all of the sides are the same length.

To find the area it is basexheight

So that is why the answer is 2.25 because 1.5x1.5=the area of the square

8 0

3 years ago

Read 2 more answers

How do you graph this on graph paper using these coordinates? The graph is in shape of a cross. (9,4) (6,-12) (9,-12) (10,-8) (1

TiliK225 [7]

Remember:
(x, y)
(y-axis)
|
|
--------|-------- (x-axis)
|
|

You just have to...
fiddle...
around with the graph.
And try to figure out things.

I spent 20 minutes on this.
and couldn't get quite close to a cross.
sorry.

4 0

3 years ago

A study reported that the average age of menarche of girls entering the first year class of a small American private college in

Verizon [17]

Answer:

Null hypothesis: $\mu = 11.89$

Alternative hypothesis: $\mu \neq 11.89$

And we want to test this with a confidence interval:

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

After conduct the interval of 95% for the true mean we got: (11.59, 13.31)

And for this case the confidence interval contains the value of 11.89, so then we have enough evidence to FAIL to reject the null hypothesis at 5% of significance that the true mean is 11.89.

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X=12.98$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

s represent the sample standard deviation

n=30 represent the sample size

Solution to the problem

For this case we want to test the following hypothesis:

Null hypothesis: $\mu = 11.89$

Alternative hypothesis: $\mu \neq 11.89$

And we want to test this with a confidence interval:

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

After conduct the interval of 95% for the true mean we got: (11.59, 13.31)

And for this case the confidence interval contains the value of 11.89, so then we have enough evidence to FAIL to reject the null hypothesis at 5% of significance that the true mean is 11.89.

4 0

3 years ago