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Elodia [21]
3 years ago
9

F(x)=4x squared −7x+7, Find f(2)

Mathematics
1 answer:
Lana71 [14]3 years ago
7 0

Answer: 9

Step-by-step explanation:

4x²-7x+7   f(2)=4*(2)^2-7(2)+7=16-14+7=9

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I need the answer asap pls! :)
AfilCa [17]

Answer:

18m

Step-by-step explanation:

Since the given traingles are similar

We get

\frac{JK}{MN} =  \frac{KL}{ML}

\frac{JK}{42}  =  \frac{21}{49}

JK =  \frac{21 \times 42}{49}

JK =  \frac{3 \times 7 \times 6 \times 7}{7 \times 7}

JK = 3 \times 6 = 18

JK = 18

Hence the distance across river is 18m

7 0
2 years ago
What is the answer please a need it so much
pickupchik [31]
The first question = 3p
The second question =
4x-3y+10z
6 0
4 years ago
WILL GIVE BRAINLIEST!! PLEASE HELP ASAP !!! 20 POINTSSSSS
grin007 [14]

Answer:

She can buy 5 rolls of crepe paper with 2ft of paper left.

Step-by-step explanation:

If you multiply 12ft by 4 sides you will get 48ft so then 5 rolls of paper that is 10ft equals 50ft so you will have more than enough paper

5 0
3 years ago
Is (12, 25) a solution on the line y=2x+2?<br> Answers: Yes, no
Maksim231197 [3]

Answer:

no

Step-by-step explanation:

let x=12 and y=25 and substitute:

does 25 = 2(12)+2?

no, 25 ≠ 26

3 0
2 years ago
If a number is decreased by its square the result is 2/9. find the number
PtichkaEL [24]
Let x be the number.
x-x²=2/9, so 9x-9x²=2 or 9x²-9x+2=0=(3x-2)(3x-1). Therefore x=2/3 or 1/3.
Check: 2/3-4/9=6/9-4/9=2/9 and 1/3-1/9=3/9-1/9=2/9.
6 0
3 years ago
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