4 years ago

Factor by grouping 4c^3+8c^2-9c-18

Mathematics

1 answer:

Zolol [24]4 years ago

7 0

Answer:

4c^3+8c^2-9c-18

Step-by-step explanation:

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two angles are complementary. the larger angle is 6 more than five times the number. how large is the smaller angle?

spin [16.1K]

Answer:

14 degrees

Step-by-step explanation:

Complementary angles means they add up to 90 degrees.

If the smaller angle times 5 plus 6 equals the bigger angle, then:

14 x 5 = 70

70 + 6 = 76

76 + 14 = 90

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3 years ago

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If one coin is flipped and then a second coin is flipped, what is the probability that both coins turn up tails?

RoseWind [281]

50% chance that both will land tails up

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3 years ago

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The department of public safety has an old memo stating that the number of accidents per week at a hazardous intersection varies

ELEN [110]

Answer:

P-value = 0.1515

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 2.2

Sample mean, $\bar{x}$ = 2

Sample size, n = 52

Alpha, α = 0.05

Population standard deviation, σ = 1.4

First, we design the null and the alternate hypothesis

$H_{0}: \mu =2.2\\H_A: \mu < 2.2$

We use one-tailed(left) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{2 - 2.2}{\frac{1.4}{\sqrt{52}} } = -1.03$

Now, we calculate the p-value from the normal standard table.

P-value = 0.1515

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3 years ago

BOOKMARK

zalisa [80]

Answer:

i dont know i am sorry

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3 years ago

Simplify c^3d^4/c^2d

katovenus [111]

Answer:

I think the answer is :-

$c {d}^{3}$

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3 years ago