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3 years ago

Someone do this for me plz

Mathematics

2 answers:

kumpel [21]3 years ago

4 0

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sladkih [1.3K]3 years ago

3 0

Answer:

(all in standard form)

1. $6x^2-x+4$

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

3. $s^3+s^2+4s+1$

4. $5a^3-a^2-2a+10$

5. $a^4+a^3-3a^2+4$

6. $u^3-u^2+9u+2$

7. $-8u^2+5u-2$

8. $81y^3+3y^2+9y+18$

9. $-3a^2+5a-2$

10. $21^3+2b^2+4b-8$

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When figuring out the amount of mulch would be needed for Alex's back yard, he created an equation that

soldier1979 [14.2K]

Answer:

Alex will need 14 bags

Step-by-step explanation:

B= 4(2x+7)+3(2x+7)

and

2x+7=2

First, we should solve the second equation to obtain x:

2x+7=2

2x=2-7

x= -5/2

Then, we use this answer to calculate B:

B=4(2(-5/2)+7)+3(2)

B=4(-5+7)+6

B=4(2)+6

B=8+6

B=14

Alex will need 14 bags

7 0

3 years ago

The following correlations were computed as part of a multiple regression analysis that used education, job, and age to predict

erma4kov [3.2K]

Answer:

Job has the weakest association with the dependent variable income.

Step-by-step explanation:

The correlation coefficient is used to determine the the strength and direction of the relationship between two variables.

It is denoted by r and the value of r ranges from -1.00 to 1.00.

The correlation data provided is as follows:

Income Education Job Age

Income 1.000

Education 0.677 1.000

Job 0.173 -0.181 1.000

Age 0.369 0.073 0.689 1.000

The dependent variable is the income.

And the variables Education, Job and Age are independent variables.

The correlation between Income and Job is 0.173.

This is the lowest correlation coefficient between the dependent and independent variable.

Thus, Job has the weakest association with the dependent variable income.

8 0

2 years ago

Mabel, Adeline and Charlie share 34500ft2 of land Mabel ownes 26%of the land area and Adeline Owens 47% of the land area . What

NikAS [45]

Answer:

Charlie owns 9,315 ft2 of the land area

Step-by-step explanation:

There are 34,500 ft2 of land shared between Mabel, Adeline, and Charlie.

Mabel owns 26% of the land area, that is:

26*34,500 ft2 / 100 = 8,970 ft2

Adeline owns 47% of the land area, or:

47*34,500 ft2 / 100 = 16,215 ft2

The land owned by Mabel and Adeline is: 8,970 ft2 + 16,215 ft2 = 25,185 ft2

Since the total area land is 34,500 ft2, Charlie owns:

34,500 ft2 - 25,185 ft2 = 9,315 ft2

Charlie owns 9,315 ft2 of the land area

4 0

2 years ago

4y=-3-x 7x-4y=43 elimination please help!!

riadik2000 [5.3K]

Answer:

x = 5 y =-2

Step-by-step explanation:

You can substitute the 4y in,
7x - (-3-x) = 43
7x + 3 + x = 43
8x + 3 = 43
8x = 40
x = 5

Then plug the x back into the equation,
4y = -3 - 5
4y = -8
y = -2

4 0

2 years ago

Read 2 more answers

Mike has 1/2 a bottle of bathroom cleaner left . he uses 1/3 of the bathroom cleaner.what fraction of the bottle does he have?

Phoenix [80]

Left = Total - used = 1/2 - 1/3 = 1/6

6 0

3 years ago