Choose the correct simplification of 9x^2(4x + 2x^2 − 1)

Answers

Answer 1
Answer:

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▹ Answer

18x⁴ + 36x³ - 9x²

▹ Step-by-Step Explanation

9x²(4x + 2x² - 1)

36x³ + 18x⁴ - 9x²

18x⁴ + 36x³ - 9x²

Hope this helps!

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There are 13 fish in an aquarium. Seven of the fish are guppies. How manynon-guppies are in the aquarium?
A. the number of guppies
B. the total number of fish
C. the number of non-guppies
( what is the variable in the problem?)

Answers

Answer:

6 non-guppies; C. the number of non-guppies

Step-by-step explanation:

13-7=x

(x is the number of non-guppies)

13-7=6

If f(x) = x/2 +8, what is f(x) when x=10?

Answers

x=13 . hope this helps you out

In the box below, enter the value that is missing from the table.

Answers

Answer:

the value that is missing from the table is 8.

Answer: 8

Step-by-step explanation:

The temperature right now is -3°F, and the forecasted high temperature is 2 °F. How many degrees will it have to warm to reach 2°F? 6.NS.5​

Answers

Answer:

5

Step-by-step explanation:

  • Subtract the high temp from the low temp
  • 2 - ( -3) = 2 + 3 = 5

Enter the number that belongs in the green box

Answers

Answer:

8

Step-by-step explanation:

8

Zinfandel is a popular red wine varietal produced almost exclusively in California. It is rather controversial among wine connoisseurs because its alcohol content varies quite substantially from one producer to another. In May 2013, the author went to a certain website, randomly selected 10 zinfandels from among the 325 available, and obtained the following values of alcohol content (%). 14.9 14.5 16.2 14.3 15.9
13.7 16.2 14.6 13.9 15.1
A. Calculate the interpret several measures of center.
B. Calculate the sample variance using the defining formula.

Answers

Answer:

Kindly check explanation

B) 0.829

Step-by-step explanation:

Given the data :

% Alcohol content of 10 zindafel wine

14.9 14.5 16.2 14.3 15.9

13.7 16.2 14.6 13.9 15.1

Sorted value : 13.7, 13.9, 14.3, 14.5, 14.6, 14.9, 15.1, 15.9, 16.2, 16.2

Range = maximum - minimum

Range = 16.1 - 13.7

n = number of samples = 10

Median = 1/4(n + 1)th term

Median = 1/4(10+1)th term = 11/4 = 2.75 th term

(14.3 + 14.5) / 2 = 28.8 /2 = 14.40

Mode = 16. 2 ( most occurring observation)

Mean(m) = (13.7 + 13.9 + 14.3 + 14.5 + 14.6 + 14.9 + 15.1 + 15.9 + 16.2 + 16.2) / 10

= 149.3 / 10

= 14.93