MATHEMATICS HIGH SCHOOL

Factor completely 3x2 + 9x − 3.3(x2 + 3)

3(x2 + 3x − 1)

3x(x2 + 3x − 1)

Prime

Answers

Answer 1
Answer:

Answer:

Option (2) is correct choice.

Step-by-step explanation:

Given polynomial 3x^2+9x-3

We have factorize the given polynomial and choose the correct from options given.

Factor are the smallest forms a given number is broken such that the product of factors gives back the number we factorized.

Here, 3x^2+9x-3

First taking 3 common from whole expression.

3x^2+9x-3=3(x^2+3x-1)

Thus, option (2) is correct choice.
Answer 2
Answer: Factor completely: 3x2 + 9x − 3

3x2 + 9x − 3    (a 3 can be divided from each number)
3(x2+3x-1)

can x2+3x-1 be factored out anymore? no

3(x2+3x-1) is the answer

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Justin weighs 72 kilograms. What is his weight in pounds?

Answers

158.733 pounds 

gonna type random characters so i can post this 
158.733 pounds ..... Your Welcome

Tina lost 3 pounds on the first week of her diet. She gained a pound on the second week, and then lost 2 pounds a week during every week afterwards. She has been dieting for a total of 13 weeks. How many pounds has Tina lost in all?

Answers

Total pounds lost by Tina = 3-1+2*11 = 24 ponds

Find the degree of the polynomial: 8r3 + 7r5 + 2r

Answers

5. The degree of the polynomial is the highest number degree in the polynomial.

Final answer:

The degree of a polynomial is determined by the highest exponent in the terms of the polynomial. The polynomial 8r3 + 7r5 + 2r has a degree of 5, which is the exponent of the highest-degree term, 7r5.

Explanation:

In Mathematics, when dealing with a polynomial, the degree of the polynomial refers to the highest power of the variable in the polynomial. For the given polynomial, 8r3 + 7r5 + 2r, we can see that the degrees of each term are 3, 5, and 1 respectively. The term with the highest degree is 7r5 which has a degree of 5. Therefore, we can conclude that the degree of the given polynomial is 5.

Learn more about Degree of a Polynomial here:

brainly.com/question/32846397

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How to write an answer to 3 significant figures

Answers

It is the first three figures of an answer. However if the answer begins with 0 you don't include that as a significant figure. For example if you have an answer of 0.2034768 to three significant figures it will be 0.203. The first significant figure is always either 1,2,3,4,5,6,7,8,9 and the next two numbers after that.
The first three numbers in a overall number. If it's say 15460, you would round to 15500 because it rounds up and trailing 0's don't count unless decimal

One of the tallest living men has a height of 262cm one of the tallest living women is 244 cm tall heights of men have a mean of 175cm and a standard deviation of 8cm heights of women have a mean of 158cm and a standard deviation of 5cm relative to the population of the same gender whos taller

Answers

a) The woman is relatively taller because the z score for height is greater than zero for the mans height.
b) The woman is relatively taller because the z score for height is greater than the z score for her height is greater than the z score for the mans height.
c) The man is relatively taller because the z score for his height is less than z score for the woman's height.
d) The man is relatively taller because z score for his height is greater than the z score for woman's height.

A machine needs 2 of its gears replaced. You find 2 gears, one manufactured 5 years ago and the other manufactured 10 years ago. The specifications sheet says that the chance of failure is 5% after 5 years and increases to 8% after 10 years. If the gears on the machine are in no way linked to each other, what are the chances that both will fail? Answer in % form.If someone could show me the steps I would really appreciate it! Thanks!!!

Answers

Probability that gear 1 will fail = 5/100 (upto 10 years) 
and 8/100 (after 10 years)

Probability that both will fail = 5/100 * 8/100
= 40/10000
= 0.4 %

Answer:

0.4%.

Step-by-step explanation:

If the gears on the machine are not linked to each other, the probability that both replacement gears will fail is 0.4%.
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