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stira [4]
3 years ago
7

Please hep I am struggling and this dang hw is due by 9!

Mathematics
2 answers:
Sliva [168]3 years ago
8 0
(9x + 4) * 2x^2


1. Regroup the terms.
2x^2(9x + 4)

2. Expand by distributing the terms.
2x^2 * 9x + 2x^2 * 4

3. Take out the constants.
(2 * 9)x^2x + 2x^2 * 4

4. Simplify 2 * 9 to 18.
18x^2x + 2x^2 * 4

5. Use this product rule: x^ax^b = x^a+b.
18x^2+1 + 2x^2 * 4

6. Simplify 2 + 1 to 3.
18x^3 + 2x^2 * 4

7. Simplify 2x^2 * 4 to 8x^2.
18x^3 + 8x^2




Therefore your answer is:

18x^3 + 8x^2
lora16 [44]3 years ago
3 0

Answer:18x cubed +8x squared

Step-by-step explanation:

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Answer: Let's start by writing down coordinates of all points:

A(0,0,0)

B(0,5,0)

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F(0,0,4)

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a.) When we reflect over xz plane x and z coordinates stay same, y coordinate  changes to same numerical value but opposite sign. Moving front-back is moving over x-axis, moving left-right is moving over y-axis, moving up-down is moving over z-axis.

A(0,0,0)

Reflecting

A(0,0,0)

B(0,5,0)

Reflecting

B(0,-5,0)

C(3,5,0)

Reflecting

C(3,-5,0)

D(3,0,0)

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D(3,0,0)

b.)

A(0,0,0)

Moving

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B(0,-5,0)

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B(-2,-8,1)

C(3,-5,0)

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Step-by-step explanation:

3 0
3 years ago
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Suppose 40% of the students in a university are baseball players. If a sample of 781 students is selected, what is the probabili
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Answer:

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Step-by-step explanation:

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First, calculate the z score using:

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