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Ierofanga [76]
3 years ago
10

1. Solve 3x^2+7=31 using square roots.

Mathematics
1 answer:
kiruha [24]3 years ago
3 0

Answer:

holaaaaaaaa q tallllll

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Please solve 5x =9(x-4) i need it fast
Sveta_85 [38]

Answer:

i think the answer is "x = 9"

Step-by-step explanation:

sry if im wrong

have a good day :)

-XxMissNobodyxX

3 0
2 years ago
3t(t+2)-3t^2 for t=19
nekit [7.7K]

Good evening Gloria

3t(t+2)-3t² for t=19

Well the first thing we need to do is to replace 19 everywhere we see T

So let's do it together

3(19)(19+2)-3(19)²

57(21)-3(361)

1197-1083

= 114

I hope that's help and if you have questions please let me know :)


Please give my answer a Thanks and stars ↓

8 0
3 years ago
I need help it’s hard
Reika [66]

9514 1404 393

Answer:

  f^-1(x) = (x +4)/3

Step-by-step explanation:

The inverse function is found by swapping x and y, then solving for y.

  y = 3x -4 . . . . . function y = f(x)

  x = 3y -4 . . . . . inverse relation

  x +4 = 3y . . . . add 4

  (x +4)/3 = y . . . divide by 3. This is the inverse function

  f^-1(x) = (x +4)/3

6 0
3 years ago
If 8 cakes cost $62.40, how much would 3 cakes cost?
Ilya [14]

Answer:

<h2><em><u>$23.40 </u></em></h2>

Step-by-step explanation:

<em><u>Given,</u></em>

Cost price of 8 cakes = $62.40

<em><u>So,</u></em>

Cost price of 1 cake = $ \frac{62.40}{8}

<em><u>Therefore,</u></em>

Cost price of 3 cakes

= $(\frac{62.40}{8} × 3)

  • <em>[On dividing 62.40 by 8]</em>

= $(7.80 × 3)

  • <em>[On multiplying]</em>

= $23.40

<em><u>Hence,</u></em>

<em><u>The required cost of 3 cakes is $23.40 (Ans)</u></em>

3 0
3 years ago
Read 2 more answers
Please help i’m failing this class so bad
ArbitrLikvidat [17]
A bc the cost matter bc u only have 50$
3 0
3 years ago
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