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2 years ago

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

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

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

$\frac{2}{12}x=24$

$\frac{1}{6}x=24$

$x=144$

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

Read 2 more answers

What is the factorization of the trinomial below? 2x2 + 11x + 12?

Black_prince [1.1K]

(2x + 3)(x + 4)

Extra characters.

6 0

2 years ago

A trinidadian who is planning to visit Canada changed $3192 to canadian currency. How many $ did the triodion received

DanielleElmas [232]

Answer:

$3934

Step-by-step explanation:

We know that the currency of different countries are different.

So, one US dollar = 1.23 Canadian dollar

Given : $3192

A trinidadian changed some US dollar to Canadian dollar who plans to visit Canada.

He exchanged $3192.

Therefore,

1 US dollar = 1.23 Canadian dollar

The value of $ 3192 will be equal to = 1.23 x 3192

= $ 3933.96

≈ $ 3934

Therefore, triodion received = $ 3934.

8 0

3 years ago

Exponential Functions

nikitadnepr [17]

Answer:

A. a = -3, b = 2

Step-by-step explanation:

I calculated it logically

5 0

3 years ago

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

Jlenok [28]

Answer:

Kristy makes 16 per hour.

Step-by-step explanation: Divded 48 by 3.

6 0

2 years ago