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3 years ago

Simplify the expression to a polynomial in standard form: (4x-9)(2x^2+2x+1)

Mathematics

2 answers:

m_a_m_a [10]3 years ago

6 0

Answer:

8x^3 - 10x^2 - 14x - 9

Step-by-step explanation:

pickupchik [31]3 years ago

5 0

Answer:

8x^3-10x^2-14x-9

Step-by-step explanation:

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A 7-pack of plastic rings costs $2.52. What is the unit price? per ring?

VikaD [51]

Answer:

7 rings = $2.52

then 1 ring will cost = 1/7×2.52

= 0.36

Therefore 1 ring will cost $0.36.

4 0

3 years ago

Please help me I don’t understand

Brilliant_brown [7]

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3 years ago

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A bag contains eight yellow marbles, nine green marbles, three purple marbles, and five red marbles. Two marbles are chosen from

Kryger [21]

Answer:

The expression would give the probability that one marble is yellow and the other marble is red is,

$P(Y\cdot R\ And\ R\cdot Y)=P(Y)P(R)+P(R)P(Y)$

Step-by-step explanation:

A bag contains eight yellow marbles, nine green marbles, three purple marbles, and five red marbles. So in total there are 25 marbles.

Hence,

Probability of getting yellow ball = $P(Y)=\dfrac{8}{25}$

Probability of getting red ball = $P(R)=\dfrac{5}{25}$

Probability that one marble is yellow and the other marble is red is,

$P(Y\cdot R\ And\ R\cdot Y)=P(Y)P(R)+P(R)P(Y)=\dfrac{8}{25}\cdot \dfrac{5}{25}+\dfrac{5}{25}\cdot \dfrac{8}{25}=0.128$

8 0

3 years ago

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One of u guys helped me but they keep returning it saying show your work>:(

Rom4ik [11]

Answer: She will need 36 yards of material.

Step-by-step explanation:

16 × 2¹/₄ can be done different ways,

First multiply ¹/₄ times 16. that is the same as dividing 16/4 = 4

Then multiply 2 times 16 2×16 = 32

Add 32 + 4 = 36

Another way is to change 2¹/₄ to an improper fraction and multiply

⁹/₄ × 16

×9

+9

144

144/4 = 36

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3 years ago

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Yall im thinking A or B but can someone help?

stiv31 [10]

It’s B, you go down 3 times from p and went over to the left 4 times and 3+4 =7

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3 years ago