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ankoles [38]
3 years ago
11

F(x)=3x2-3x+1 Find f(-2)

Mathematics
2 answers:
Paraphin [41]3 years ago
4 0

Answer:

avuacucaiavkavygjoolbcdd

Alex Ar [27]3 years ago
4 0

9514 1404 393

Answer:

  19

Step-by-step explanation:

Put -2 where x is and do the arithmetic.

  f(-2) = 3(-2)² -3(-2) +1 = 3·4 +6 +1

  f(-2) = 19

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<img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7Bm%7D%20%20%3D%20n%20" id="TexFormula1" title=" {2}^{m} = n " alt=" {2}^{m} =
sveta [45]

Answer:

\displaystyle n^3-\frac{1}{n^{2}}

Step-by-step explanation:

<u>Exponents Properties</u>

We need to recall the following properties of exponents:

(a^x)^y=(a^y)^x=a^{xy}

\displaystyle a^{-x}=\frac{1}{a^x}

We are given the expression:

2^m=n

We need to express the following expression in terms of n.

8^m-4^{-m}

It's necessary to modify the expression to use the given equivalence.

Recall 8=2^3 \text{ and }4 = 2^2. Thus:

(2^3)^m-(2^2)^{-m}

Applying the property:

(2^m)^3-(2^m)^{-2}

Substituting the given expression:

n^3-n^{-2}

Or, equivalently:

\mathbf{\displaystyle 8^m-4^{-m}= n^3-\frac{1}{n^{2}}}

5 0
2 years ago
Will someone please help me here
stealth61 [152]

You would use unit rate for this. If Austin makes $209 in 11 hours, then he makes 209/11 = 19 dollars in 1 hour.

Then, we can make a proportion:

$19/1 hour = $152/ x hours

Cross multiply:

152 = 19x

Solve for x to get:

x = 8 hours.

6 0
3 years ago
Read 2 more answers
Pls help I’m giving points
Sedaia [141]

Answer:

27/16

Step-by-step explanation:

this is because i added up 1/2 and 3/4 first, which gave me 1 1/4, and i converted this into just a single fraction without a whole number to make the adding easier for me which was 5/4.  

(a whole number is the amount of times the bottom number of the fraction went into the top number so-... 4 goes into 5 one time which gives you a whole number of 1 and the fraction of 1/4. the 1 being left from the five.)

then i added 5/4 and 7/16 to get 1 11/16.  which then converted into 27/16

5 0
2 years ago
Can somebody help me with this pls thank you.
prisoha [69]

Answer:

The place value is the Tenths. and the other answer is 0.7

Step-by-step explanation:

Since 2 is under 4 then 7 stays the same so the number will be 0.7

7 0
3 years ago
Rearrange the formula m = x + y 2 for y.
Anika [276]
M - x = y^2
y=√(m - x)
3 0
2 years ago
Read 2 more answers
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