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Mama L [17]
2 years ago
14

Evaluate the expression when x=−3 xˆ2+5x+9

Mathematics
2 answers:
gulaghasi [49]2 years ago
7 0
When -3 is squared it becomes 9 then -3x5 is -15 so put that back into the equation 9-15+9= 4
ololo11 [35]2 years ago
3 0
I'm not sure but I think it's -15
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Pru, Piper, and Phoebe share apples in the ratio 5:3:4. If Pru has 24 more apples than Piper, how many apples does Phoebe have?
Bezzdna [24]

Answer: Phoebe have 48 apples.

Explanation:

It is given that Pru, Piper, and Phoebe share apples in the ratio 5:3:4. If Pru has 24 more apples than Piper.

Let the total number of apples be x.

The sum of the ratios is,

Sum=5+3+4=12

Therefore the number of apples shared by Pru, Piper, Phoebe are \frac{5}{12}x, \frac{3}{12}x,\frac{4}{12}x respectively.

It is given that Pru has 24 more apples than Piper, so

\frac{5}{12}x-\frac{3}{12}x=24

\frac{5-3}{12}x=24

\frac{2}{12}x=24

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Since phoebe have \frac{4}{12}x appels,

\frac{4}{12}x=\frac{4}{12}\times 144=48

Therefore, Phoebe have 48 apples.

8 0
3 years ago
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2 years ago
A trinidadian who is planning to visit Canada changed $3192 to canadian currency. How many $ did the triodion received
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Therefore,

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Kristy dad makes 3 times as much per hour as she does. If he makes $48 per hour, how much per hour, how much per hour does krist
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Kristy makes 16 per hour.

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