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NNADVOKAT [17]
2 years ago
9

Choose the correct sum of the polynomials (6x3 − 8x − 5) + (3x3 + 6x + 2). 9x3 − 2x − 3 3x3 + 2x + 3 3x3 − 2x − 3 9x3 + 14x + 3

Question 11(Multiple Choice Worth 1 points)
Mathematics
1 answer:
harina [27]2 years ago
7 0
Add the   x^3:- 6 x3 + 3x3 = 9x3
              x's:- -8x + 6x = - 2x
               -5 + 2 = -3

the first choice is the correct one
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According to the document Current Population Survey, published by the U.S. Census Bureau, 30.4% of U.S. adults 25 years old or o
Marizza181 [45]

Answer:

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they have a high school degree as their highest educational level, or they do not. The probability of an adult having it is independent of any other adult. This means that the binomial probability distribution is used 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.

30.4% of U.S. adults 25 years old or older have a high school degree as their highest educational level.

This means that p = 0.304

100 such adults

This means that n = 100

Determine the probability that the number who have a high school degree as their highest educational level is a. Exactly 32

This is P(X = 32).

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

P(X = 32) = C_{100,32}.(0.304)^{32}.(0.696)^{68} = 0.0803

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

7 0
2 years ago
salad dressing is made by mixing lemon juice and oil in the ratio 5:4. eleanor makes 900ml of the salad dressing how much lemon
xxTIMURxx [149]

Answer:

500 ml.

Step-by-step explanation:

5:4, right?

5 + 4 = 9

There's your answer, friend!

7 0
2 years ago
Y-intercept is 100 and slope is 5. Partner gave example: Younger brother had 100 small building blocks, but lost 5 of them every
ArbitrLikvidat [17]
Since he lost 5 every month, it should be that the slope is -5, not 5, he is not gaining 5 every month


yint is 100 and slope is -5 would be correct
b=-5m+100
b=number of blocks he has after m months
3 0
3 years ago
1. Recall the three modes of transportation in the 3D world: v1 = 1-u,-13 ,v,- 6 Is there anywhere in the 3D world that Gauss co
jolli1 [7]

Complete Question

The complete question is on the first uploaded image

Answer:

The answers and the explanation are on the second ,third and fourth uploaded image

Step-by-step explanation:

3 0
3 years ago
Math question up here
Gemiola [76]
The answer is 11 because you do the smallest parenthesis. and work your way out.
7 0
2 years ago
Read 2 more answers
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