All categories

3 years ago

What is the answer to 12(4x+2)

Mathematics

2 answers:

Umnica [9.8K]3 years ago

7 0

The answer to this problem is 1/2

AlexFokin [52]3 years ago

3 0

Probably 6
I may be wrong but try it

You might be interested in

Find the are of the segment

Alex777 [14]

Answer:

$(9\pi - 18)cm^2$

Step-by-step explanation:

To find the area of this section of the triangle, we will have to find the area of the sector, and then subtract the area of the triangle. To first find the area of the sector of the circle. Remember that the sector of a circle can be found using a proportion of angles. Since there is an angle of 90 degrees in the center. We will take that and divide it by 360 degrees, which is an entire circle. $\frac{90}{360} = \frac{1}{4}$ , so the sector is one-quarter of the entire circle. Now find the area of the entire circle which will be $\pi r^{2}$ × $\frac{1}{4}$ , where r is 6 since it is the radius of the circle. So therefore the area of the sectore will be a quarter of 36 $\pi$ , which is 9 $\pi$ .

Now you must find the area of the triangle with side length 6. Remember, this is an isosceles triangle with sides length of 6 because two of the sides are radii. Also, remember that this is a 90 degree triangle, so the area of the triangle is simply $\frac{6*6}{2}$ , which is 18 cm^2.

Now to find the area of just the yellow segment, just take the area of the sector we found, and subtract the area of the triangle. Therefore, the answer is $(9\pi - 18)cm^2$

Hope this helped.

4 0

3 years ago

This is part 2 of my previous question(s)

faltersainse [42]

Answer:

Look at bolded numbers

Step-by-step explanation:

1. 40-(-40)=40+40=80

2. -4-(-36)=-4+36=32

-- makes a positive

3 0

2 years ago

5x5x5x5x5x5x5x5x10x10x00.0001

gulaghasi [49]

3906.25

Use a calculator

4 0

3 years ago

A public health official is planning for the supplyof influenza vaccine needed for the upcoming flu season. She wants to estimat

Marizza181 [45]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

Step-by-step explanation:

We know that the sample proportion have the following distribution:

$\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64$

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

And on this case we have that $ME =\pm 0.04$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

We assume that a prior estimation for p would be $\hat p =0.5$ since we don't have any other info provided. And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

5 0

4 years ago

What is the length of AD?

Travka [436]

The answer is A is this geometry?

8 0

3 years ago

Read 2 more answers