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Anettt [7]
1 year ago
15

Simplify 5x²-x+ 9 = X=3

Mathematics
1 answer:
Nutka1998 [239]1 year ago
4 0

Answer:

51

Step-by-step explanation:

5x^2 - x + 9

5(3^2) - 3 + 9

5(9) + 6

45 + 6

= 51

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3t^2+10t+7<br> factor im confused what im doing
mrs_skeptik [129]

Answer:

(3t + 7) (t + 1)

Step-by-step explanation:

3t^2 + 10t + 7

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(3t+7) (t+1)

8 0
3 years ago
Two tractors working together cultivated 23 of a field in 4 days. How long would it take each tractor to cultivate the whole fie
Serhud [2]

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HHHH

Step-by-step explanation:

5 0
3 years ago
Please help thank you!
Arte-miy333 [17]

Answer:

  • golf: $10
  • batting: $2.50

Step-by-step explanation:

We can write two equations in the two unknowns using the given relations. Let g and b represent the costs of a round of golf and a turn in the batting cage, respectively.

  5g +4b = 60 . . . . . Sylvester's expense

  3g +6b = 45 . . . . . Lin's expense

Dividing the second equation by 3 gives ...

  g +2b = 15   ⇒   2b = 15 -g

Substituting into the first equation, we have ...

  5g +2(2b) = 60

  5g +2(15 -g) = 60 . . . . . substitute for 2b

  3g = 30 . . . . . . . . . subtract 30, collect terms

  g = 10 . . . . . . . divide by 3

__

  2b = 15 -10 = 5 . . . . use the value of g to find b

  b = 2.5 . . . . . . . . divide by 2

Mini golf costs $10 per round; batting cages cost $2.50 per turn.

7 0
2 years ago
the names of nine boys and two girls are in a hat. what is the probability of first drawing a girls name and then a boys name fr
lara [203]
18/121 shoul be the answer
5 0
2 years ago
Read 2 more answers
Find the area of the triangle ​
Tasya [4]

Answer:

I think it's 36 from top to bottom

Step-by-step explanation:

and pls ask a real question, or ask more with info

4 0
1 year ago
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