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castortr0y [4]
3 years ago
9

Simplifying Rational Expressions

Mathematics
1 answer:
Evgen [1.6K]3 years ago
4 0
B^-2 / b^-3  = b^(-2-(-3) = b^1  = b

answer is d
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Frank joined a fitness club. He paid a $50 registration fee, and dues are $12 per month. Which expression can be used to find th
atroni [7]

Answer: The expression will be \frac{50+12x}{x}

Step-by-step explanation: Frank has to pay $50 as the registration fee. This amount is compulsory to be paid

Step 1: Dues for $12 months

Let the due to be paid every month be $x, so dues to be paid for 12 months will be 12x

Step 2: Expression for the average monthly cost for x-month will be

Expression: \frac{\text{Total cost}}{\text{Total months}}

Total cost = 50 + 12x

Expression: \frac{50+12x}{x}

7 0
3 years ago
Read 2 more answers
in a state with a population of 2000000 the average vitizen spends 6000 on housing each year. what is the total spent on housing
Olenka [21]

Answer:

1.2 \times 10^{10} spents on housing for each year for the state.

Step-by-step explanation:

Given:

Population of State = 2000000

Average Citizen spends on housing = 6000

We need to find total spent on housing for the state.

For finding total spent on housing for state we need to multiply Population of state with average citizen spends on housing.

Total spent on housing for state = Population of State \times Average Citizen spends on housing = 2000000 \times 6000 = 12000000000

Now expressing the above in scientific notation we get;

Total spent on housing for state = 1.2 \times 10 ^{10}

7 0
3 years ago
Samantha and Mia each left Julia’s house at the same time. Mia walked north at 7 kilometers per hour. Samantha ran west at 11 ki
Lena [83]
Mia walked 7km/h so after 1 hour, she is 7 km north of the house of Julia

Samantha walked 11km/h so after 1 hour, she is 11 km west of the house of Julia.

The points where Mia and Samantha are after 1 hour , and the house of Julia form a right triangle with sides 7 and 11 km. The distance between the girls, is the hypotenuse of his triangle.

 by the pythagorean theorem:

MS= \sqrt{ 7^{2} + 11^{2} }= \sqrt{49+121}= \sqrt{170}=  13 (km)


Answer: 13 km

3 0
3 years ago
Read 2 more answers
a father's age is three less than two times the son's age. the difference in their ages is 30 years. find the son's age.
wel
The son's age is 31 and the father's age is 61.
2s-3=f
f-s=30
f=61
s=31
5 0
4 years ago
Read 2 more answers
At the 2012 Summer Olympic Games in London, in the Men's Shot Put qualifying round, the distances ranged from 17.58 meters to 21
chubhunter [2.5K]

Answer:

One standard deviation above the mean means a z-score of 1.0. If we put this into the calculator as normalcdf(1,999) = .159

15.9 percent of the athletes would have a distance greater than 20.56 meters.

Now multiply the number of athletes by the percent.

.159 * 40 = 6.346 = about 6 athletes

c. about 6 athletes

8 0
3 years ago
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