All categories

3 years ago

Can someone explain a little? I forgot how to solve this. :/

Mathematics

1 answer:

kari74 [83]3 years ago

5 0

Add both numbers together then subtract 180 from the sum of the two numbers

You might be interested in

Find the volume of the sphere. express your answer in term of Pie

IceJOKER [234]

Answer:

$\large\boxed{36\pi}$

Step-by-step explanation:

The formula of a volume of a sphere:

$V=\dfrac{4}{3}\pi R^3$

R - radius

We have R = 3 ?. Substitute

$V=\dfrac{4}{3}\pi(3^3)=\dfrac{4}{3}\pi(27)=(4)\pi(9)=36\pi$

If the radius is 30, then the volume is:

$V=\dfrac{4}{3}\pi(30^3)=\dfrac{4}{3}\pi(27,000)=(4)\pi(9,000)=36,000\pi$

If 30 is the length of diameter, then the radius R = 30 : 2 = 15.

Therefore the volume:

$V=\dfrac{4}{3}\pi(15^3)=\dfrac{4}{3}\pi(3,375)=(4)\pi(1,125)=4,500\pi$

3 0

4 years ago

What is x•9+9•12 if x equals 2

polet [3.4K]

$2\cdot9+9\cdot12=18+108=126$

3 0

3 years ago

Mark is solving the following system.

fredd [130]

I think its he didnt eliminate the same variables

6 0

4 years ago

Read 2 more answers

Find the two Z-scores that separate the middle 73.72% on the Standard Normal Curve.

leonid [27]

Answer:

+1.12 and -1.12

Step-by-step explanation:

Let the two z scores be $-z_1and+z_1$ .

Since the two Z-scores that separate the middle 73.72% on the Standard Normal Curve, this can be represented by the equation:

$P(-z_1$

From the z table of the normal distribution, z₁ = 1.12. That is a z score of 1.12 gives 0.8686.

The two z scores are +1.12 and -1.12 = ± 1.12

4 0

3 years ago

Rewrite 1/2 3/4 as a unit rate

Nata [24]

Answer:

Step-by-step explanation yes

5 0

4 years ago

Can someone explain a little? I forgot how to solve this. :/ ​

Can someone explain a little? I forgot how to solve this. :/