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Dmitriy789 [7]
3 years ago
12

How to do this and I need help pls

Mathematics
1 answer:
tatuchka [14]3 years ago
7 0

Answer:

9

Step-by-step explanation:

f(x) = (x - 2)^{2}  \\ f(5) = (5 - 2)^{2}  \\ f(5) =  {(3)}^{2} \\ f(5) = 3 \times 3 \\ f(5) = 9

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2 1/2 yards of fabric total cost was $15 how much was each yard
irga5000 [103]
2.5 yards is $15 so you divide 15 by 2.5 and you would get the cost of each yard, which is $6 per yard :)
7 0
3 years ago
A national survey of middle school students asks how many hours of sleep they get on school nights. Which sample ​best​ represen
mariarad [96]

Answer:

D

Step-by-step explanation:

It wouldnt be a single grade being surveyed so we would choose d in additon a and b isnt national since it says 'in a certain town' and 'in a certain county'.

Which leaves you with D.

5 0
2 years ago
See image for question and answer choices
Alexxx [7]

Answer:

B.

Step-by-step explanation:

So, lets remember a few things first.

#1: The formula for finding the answer is A^2+B^2=C^2

#2: A is the opposite side, B is the adjacent side, and C is the hypotenouse side.

Now lets plug in what we already know, and see if we canf igure out the annswer:

<u>A^2+12^2=13^2</u>

Now I am going to stop us here. This is your equation that will find the answer. In your question, they use x^2, A^2 is a variable you can use instead. But looking at this, answer B and my equation I wrote above are exactly the same.

If you want, here is how I further solved it, this might give you a better grasp on what to do for future problems:

Ok, not  too bad, the A is the unkown value, which is the opposite side.

Now, how do we figure this out? Well, we just need to sovle for A.

To do this, lets clean up our equation by first sqauring all the values(except for the unkown):

A^2+144=169

Ok, that looks better, now lets just subtract the adjeacent side(b), which is 144, from the hypotenouse side(c), which is 169.

This will now look like:

A^2=25(169-144=25)

Ok, just one more step to go. Just square root both sides of the equation, this way, we will get ride of the ^2 on A(opposite side), and get A alone.

(\sqrt{A^2}=A)=(\sqrt{25}=5)

A=5

This is your answer.

5 0
3 years ago
Damon is researching the business options available in order to turn his photography hobby into a business. He surveyed 100 pote
kvasek [131]

Answer:

The answer is open up a studio with a gallery of his sample work.

5 0
3 years ago
What is that into a decimal?
AnnyKZ [126]
3.8 or 8.3 I believe it’s 3.8 though, sorry, I’m not that smart.
6 0
3 years ago
Read 2 more answers
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