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2 years ago

I need help in problem 8 plz help me I need a a

Mathematics

1 answer:

iogann1982 [59]2 years ago

6 0

Here are three ways where There could be equal rows

3*12=36
4*9=36
6*6=36

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F(x)=2(x-3)(x-2)(x+1)

seropon [69]

Answer:

2x^3-8x^2+8x+12

Step-by-step explanation:

split them up

use distributive property

2x-6(x-2)

2x^2-4x-6x+12(x+1)

use distributive property again

2x^3+2x^2-4x^2-4x-6x^2-6x+12x+12

simplify

2x^3-8x^2+8x+12

I forgot if you can divide it by 2 or not to simplify it even more. If you can, divide it by 2. I forgot the rules

If you divide it by 2, then the answer is

x^3-4x^2+4x+6

6 0

3 years ago

50 POINTS .....................

Alenkinab [10]

The option (C) Mus. Apt. = -22.26 + 0.4925(IQ score) is correct because the value of slope is 0.4925 and y-intercept is -22.26.

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

$\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2}$

$\rm c = \dfrac{\sum y -m \sum x}{n}$

We have data shown in the picture.

Let's suppose the regression line is:

y = mx + c

Where m is the slope of the regression line and c is the y-intercept of the line.

We can calculate the value of m and c by using the formula.

After calculating, we get:

m = 0.4925

c = -22.26

Mus. Apt. = 0.49253(IQ score) - 22.26

Mus. Apt. = -22.26 + 0.4925(IQ score)

Thus, the option (C) Mus. Apt. = -22.26 + 0.4925(IQ score) is correct because the value of slope is 0.4925 and y-intercept is -22.26.

Learn more about the line of best fit here:

brainly.com/question/14279419

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4 0

1 year ago

The sum of 2 times a number and -7, added to 5 times the number

Anna007 [38]

Let x be the number
2x - 7 + 5x
=7x-7

6 0

3 years ago

Read 2 more answers

On an exam, Mafuyu scored in the 20th percentile. If there were 50 students in the class, how many students scored lower than he

Reptile [31]

Using the percentile concept, it is found that 10 students scored lower than he did.

<h3>What is the meaning of the percentile of a measure?</h3>

When a measure is in the xth percentile of a data-set, it is greater than x% of the measures and lesser than (100 - x)%.

In this problem, he scored on the 20th percentile, that is, higher than 20% of the 50 students. Then:

0.2 x 50 = 10.

10 students scored lower than he did.

More can be learned about percentiles at brainly.com/question/24495213

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6 0

2 years ago

Substitute each variable to determine whether the inequality is true or false.

algol13

Answer:

It is false: -16>-15 is not true

3 0

2 years ago

Read 2 more answers