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4 years ago

PLEASE HELP!!!! WILL GIVE BRAINLIEST FOR CORRECT ANSWER AND EXPLANATION

Mathematics

1 answer:

Volgvan4 years ago

5 0

27 as you align the numbers from smallest to greatest, 27 is in the center

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Step by step how to solve this equation by completing the square<br> x^2-16x+-60

anygoal [31]

Answer:

Step-by-step explanation:

x^2-16x+60

(x-6)(x-10) factor the equation

x-6=0

x=6

x-10=0

x=10

5 0

3 years ago

A table titled hours spent studying has entries 4, 5, 9, 15, 8, 2, 20, 1, 6, 9, 10, 8, 10, 8, 1, 2.

Sauron [17]

The range is the maximum value minus the minimum value. In this case would be 20 - 1 which is 19.

5 0

4 years ago

Read 2 more answers

The Blair family was one of the first to come to the original 13 colonies (now part of the USA). They had 4 children. Assuming t

Mumz [18]

Answer:

31.25% probability that the Blair family had at least 3 girls

Step-by-step explanation:

For each children, there are only two possible outcomes. Either it was a girl, or it was not. The probability of a child being a girl is independent of any other children. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

They had 4 children.

This means that $n = 4$

The probability of a child being a girl is 0.5

This means that $p = 0.5$

Probability of at least 3 children:

$P(X \geq 3) = P(X = 3) + P(X = 4)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 3) = C_{4,3}.(0.5)^{3}.(0.5)^{1} = 0.25$

$P(X = 4) = C_{4,4}.(0.5)^{4}.(0.5)^{0} = 0.0625$

$P(X \geq 3) = P(X = 3) + P(X = 4) = 0.25 + 0.0625 = 0.3125$

31.25% probability that the Blair family had at least 3 girls

3 0

3 years ago

This month Jan saved $80 from her babysitting job. Last month she saved $20. How many times more did she save this month than la

Ede4ka [16]

Answer:

4 times more

Step-by-step explanation:

80/20=4

6 0

3 years ago

32ax + 12bx - 48ay - 18by<br><br>factor the polynomial

SashulF [63]

Answer:

(16a + 6b) (2x - 3y)

Step-by-step explanation:

32ax + 12bx - 48ay - 18by

(32ax - 48ay) + (12bx - 18by)

16a(2x - 3y) + 6b(2x - 3y) Factor out in both seperate expressions

(16a + 6b) (2x - 3y) Double factoring

4 0

4 years ago

Read 2 more answers