3 years ago

Write an equivalent expression for (2m+3)(m-1).

Mathematics

1 answer:

KonstantinChe [14]3 years ago

8 0

You can do the box method, multiply them. Then combine like terms.
You can also use the foil method.

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Answer:

0.933 ; not independent

Step-by-step explanation:

Given :

A - made from natural polished wood

B - made from chrome accent

P(A) = 0.9

P(B) = 0.75

P(AnB) = 0.7

1.) probability of natural wood Giveb that it has chrome accent

P(A|B) = P(AnB) / P(B)

P(A|B) = 0.7 / 0.75

P(A|B) = 0.933

2.)

For an independent event :

P(AnB) = p(A) * p(B)

P(AnB) = 0.9 * 0.75 = 0.675

However, p(AnB) Given here is 0.7, thus the event aren't independent

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3 years ago

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A shape has Rotational Symmetry when it still looks the same after a rotation.

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Two neighbors both have rectangular swimming pools in thir backyards. one neighbors pool has dimensions that are twice as great

olga nikolaevna [1]

It would be b) 2:1 (:

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2 years ago

Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per da

balu736 [363]

Answer: Tara thinks correctly.

Step-by-step explanation:

Let's calculate the average value in sample A:

(4 × 70 + 5 × 100 + 6 × 125 + 7 × 135 + 8 × 70) ÷ 500 = 6,07 ≈ 6 hours

Let's calculate the average value in sample B:

(4 × 80 + 5 × 90 + 6 × 120 + 7 × 125 + 8 × 85) ÷ 500 = 6,09 ≈ 6 hours

So, Tara is correct in saying that the mean is 6.

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Answer:

9 tiles needed to fill

Step-by-step explanation:

16 - 7

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