3 years ago

Please help me asap!!

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

6 0

Answer:

Step-by-step explanation:

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3. Simplify the polynomial (-8x) + x + (-2x) A. -5x B. 5x C.-9x D. 9x

Westkost [7]

Answer: -9x

Step-by-step explanation:

Collect all of the like terms.

-8x + x - 2x

-7x -2x

-9x

8 0

4 years ago

In a certain city, the true probability of a baby being a boy is 0.559. Among the next eight randomly selected births, find the

Arlecino [84]

Answer:

99.86%

Step-by-step explanation:

What we have here is a binomial distribution, let x be the baby number among 8 births.

Binomial (n = 8, p = 0.559)

We want to find, P (X ≥ 1)

P (X ≥ 1) = 1 - P (X <1)

P (X ≥ 1) = 1 - P (X = 0)

P (X = 0) = 8C0 * (0.559) ^ 0 * (1 - 0.559) ^ (8-0)]

8C0 = 8! / (0! * (8-0)!) = 1

replacing we have:

P (X = 0) = 1 * 1 * 0.0014

P (X = 0) = 0.0014

P (X ≥ 1)) = 1 - 0.001 4

P (X ≥ 1) = 0.9986

Therefore the probability is 99.86%

4 0

3 years ago

I need help ASAP. I tried but I didn’t get it

ludmilkaskok [199]

Answer:

the answer is 77.77777(repeating)

Step-by-step explanation:

77 and 7/10 approximately

8 0

3 years ago

The triangles are similar. What is the value of x?

Bad White [126]

Answer:

The value of x is $16\ units$

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is equal and is called the scale factor

$\frac{12}{3} =\frac{x}{4}\\ \\x=12*4/3\\ \\x=16\ units$

4 0

3 years ago

Find the quotient: 6/2 divided by 3/4.

Anastasy [175]

Answer: the quotient is 4

8 0

3 years ago

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