3 years ago

PLEASE HELP FAST!!! ITS EASY BUT NOT FOR ME!!

Mathematics

2 answers:

Maru [420]3 years ago

8 0

The answer is number 4

kolezko [41]3 years ago

8 0

The equation that is different than the others or the first one

9.1=-0.2x+10

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Multiply (x^2+x-2)(x+2)

Blababa [14]

Answer:

The answer is x^3+3x^2-4

Have a great day!

-Seth

5 0

3 years ago

Read 2 more answers

2. In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviati

Kobotan [32]

Answer: $85,000

Step-by-step explanation:

Given : In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviation of $12,000.

$\mu_M=40,000\ \ ;\sigma_M=12,000$

Female earnings have a mean of $45,000 per year and a standard deviation of $18,000.

$\mu_F=45,000\ \ ;\sigma_F=18,000$

If C denote the combined earnings for a randomly selected couple.

Then, the mean of C will be :-

$\mu_c=\mu_M+\mu_F\\\\=40,000+45,000=85,000$

Hence, the mean of C = $85,000

8 0

3 years ago

Suppose the first term of a geometric sequence is 3 and the fourth term is 192. What is the common ratio of the sequence? Write

gayaneshka [121]

An=A1 r ^(n-1)
192= 3 r ^(4-1)
192 = 3 r^3
64 = r^3
r = 4

equation:
An=3 (4)^(n-1)

6th term:
An= 3 (4)^(6-1)
An= 3072

I think this is right :)

3 0

3 years ago

Ber [7]

Answer:

2/1

Step-by-step explanation:

5 0

2 years ago

Square root of 4×-1=5

borishaifa [10]

Answer:3/2

how i did this

 Add 11 to both sides.

4x=5+1

Simplify 5+15+1 to 66.

4x=6

Divide both sides by 4

x= 6/4

Simplify 6/4 to 3/2

Awnser

x=3/2

Sorry if not helpful just trying my best :)

5 0

3 years ago