3 years ago

Are you good at math then here

Mathematics

1 answer:

Nikolay [14]3 years ago

7 0

Answer:

see below

Step-by-step explanation:

The term -2t suggests that there are "t" of something that costs $2, or there are 2 of something that costs "t" dollars. The options marked include both interpretations.

You might be interested in

Htdtdeyt5ey5jed6yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuurrrrrrrrrrrrrrrrrrrrrrrrrr

raketka [301]

Answer: ok LOL thx XD

Step-by-step explanation: BRAINLIEST PLS

8 0

3 years ago

Suppose a normal distribution has a mean of 62 and a standard deviation of4. What is the probability that a data value is betwee

saw5 [17]

SOLUTION

From the given data the mean is 62 and standard deviation is 4

It is required to find the probability that a data value is between 57 and 62

That is:

$P(57\lt x\lt65)$

The z scores is calculated using:

$z=\frac{x-\mu}{\sigma}$

Using the x values it follows:

$z=\frac{57-62}{4}=-1.25$

Also,

$z=\frac{65-62}{4}=0.75$

Thus the required probability is:

$P(-1.25The proability is:[tex]P(-1.25This can be expressed as percentage as:[tex]P(-1.25\lt z\lt0.75)=66.8\%$

Therefore the correct option is C

8 0

1 year ago

Find the circumference of a circle with an area of 28.26.<br> Show work please.

muminat

Answer:

18.84

Step-by-step explanation:

Since the formula for circumference is $C=2\pi r$ , we need to first find the radius. The formula for the radius is $r=\frac{\sqrt{A\pi } }{\pi }$ , so we will get $r=3$ . Substitute that into $C=2\pi r$ , and we get $C=18.84$ . Hope this helps!