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Mashutka [201]
3 years ago
12

I need to know how to do number 20

Mathematics
1 answer:
zimovet [89]3 years ago
6 0

(x^4y^3)^2=(x^4)^2(y^3)^2=x^{4\cdot2}y^{3\cdot2}=x^8y^6\\\\Used:\\\\(a\cdot b)^n=a^n\cdot b^n\\\\(a^n)^m=a^{n\cdot m}

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Solve for x .<br><br> 3(2 x - 3) + 4(2 - x ) = 0<br><br> 17/10<br><br> -17/10<br><br> 1/2
fiasKO [112]

Answer:

x = \frac{1}{2}

Step-by-step explanation:

3(2x - 3) + 4(2 - x)  = 0 ← distribute parenthesis

6x - 9 + 8 - 4x = 0 , that is

2x - 1 = 0 ( add 1 to both sides )

2x = 1 ( divide both sides by 2 )

x = \frac{1}{2}

7 0
2 years ago
Please help, I need the answer
Oxana [17]
9189.15 ft (this is the answer and I have not rounded it)
6 0
3 years ago
Read 2 more answers
A one year membership to a gym Costa $725 the registration fee is $125 and the remaining amount la paid monthly define a variabl
konstantin123 [22]

Heyo. Let's go ahead and set this problem up

It should look like this

12x + 125 = 725

The variables can be another letter, doesn't matter.

12 will stand for the months in a year

x is the amount paid per month

125 is the registration free

725 is the one year membership total


Subtract both sides by 125 to get:

12x = 600

Divide both sides by 12 to get:

x=50

That being said, each month, a new member will pay $50.

3 0
3 years ago
You have saved up $150,000 to invest for retirement. You would like to earn $200,000 in interest, and you think you will earn an
Yuri [45]

Answer: What percentage to save for retirement?

Saving 15% of income per year (including any employer contributions) is an appropriate savings level for many people. Having one to one-and-a-half times your income saved for retirement by age 35 is an attainable target for someone who starts saving at age 25.

Step-by-step explanation: That's the answer I got it right! lol!

7 0
3 years ago
Dr. Potter provides vaccinations against polio and measles. Each polio vaccination consists of 444 doses, and each measles vacci
nataly862011 [7]

Answer:

37 polio vaccinations and 23 measles vaccination.

Step-by-step explanation:

Let the number of polio vaccination given=x

Let the number of measles vaccination given=y

Dr. Potter gave a total of 60 vaccinations

x+y=60

Since each polio vaccination consists of 4 doses, and each measles vaccination consists of 2 doses. A total of 184 doses was given out.

4x+2y=184

To find the values of x and y, we solve the two equations simultaneously.

x+y=60             (1)

4x+2y=184        (2)

From (1), x=60-y

Substitute x=60-y into equation 2.

4x+2y=184

4(60-y)+2y=184

240-4y+2y=184

240-184=4y-2y

56=2y

Divode both sides by 2

y=23

Recall earlier that x=60-y

x=60-23=37

Dr Potter gave 37 polio vaccinations and 23 measles vaccination.

6 0
3 years ago
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