What is the answer to 3(x^2-8x-7)

Answers

Answer 1

Answer: 3x^2-24x-21 would be your answer

Answer 2

Answer: 3x x +3 x 2 + 3 x 8x + 3 x 7 ( x is a termen)

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What is the inverse for this problem?

True or False
100% of any number must greater than or
equal to 100

Answers

False
For example 100% of 2 is 2

The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 261.5 and a standard deviation of 67.4 . (All units are 1000 cells/μL.) Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of women with platelet counts within 1 standard deviation of the mean, or between 194.1 and 328.9 ? b. What is the approximate percentage of women with platelet counts between 59.3 and 463.7 ?

Answers

To solve this problem using the empirical rule, we will use the following percentages:

- Approximately 68% of the data falls within 1 standard deviation of the mean.
- Approximately 95% of the data falls within 2 standard deviations of the mean.
- Approximately 99.7% of the data falls within 3 standard deviations of the mean.

a. To find the approximate percentage of women with platelet counts within 1 standard deviation of the mean, we can use the 68% rule. Since 194.1 is 1 standard deviation below the mean, and 328.9 is 1 standard deviation above the mean, we can say that approximately 68% of the women have platelet counts within this range.

b. To find the approximate percentage of women with platelet counts between 59.3 and 463.7, we can use the 95% rule. Since 59.3 is 2 standard deviations below the mean, and 463.7 is 2 standard deviations above the mean, we can say that approximately 95% of the women have platelet counts within this range.

HELP ME IM TIMED!Which expression best estimates -18
– ,
O 18-3
O -18-3
O-18-(-3)
O 18-(-3)

Answers

I’m not sure of the context of your class, but the second choice will give you -21 and the third one will give you -15. The first and last choice are positive, so just between those two

Answer:I think it’s c

Step-by-step explanation:I’m think me smart

What is the solution to the system of equations y = -4/5x + 6 and y = -30A) (45,-30)
B) (-30,30)
C) (-30,45)
D) (30,-30)

Answers

Hi There!

Answer: A) (45,-30)

Why: x = 45 and y = -30

-30 = -4/5(45) + 6

-30 = -36 + 6

-30 = -30

Hope This Helps :)

Answer:

A is the correct answer

Step-by-step explanation:

took the exam

A college professor states that this year's entering students appear to be smarter than entering students from previous years. The college's records indicate that the mean IQ for entering students from earlier years. is 110.3. Suppose we want to sample a smaller number of this year's entering students and carry out a hypothesis test to see if the professor statement can be supported. State the null and alternative hypothesis.