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Vsevolod [243]
2 years ago
12

Rory earned an 84% on his test. He answered 21 questions correctly. How many total questions were on the

Mathematics
1 answer:
Anna35 [415]2 years ago
4 0

Answer:

21 is 84% to 25, so there would be 25 total questions on the test

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The period of a periodic function is 8 s . How many cycles does it go through in 30 s ?
kap26 [50]

The number of cycles of the periodic function is 3.75 cycles if the period of a periodic function is 8 s option (G) 3.75 is correct.

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that:

The period of a periodic function is 8 s

From the question:

8n = 30

n = 30/8

n = 3.75 cycles

Thus, the number of cycles of the periodic function is 3.75 cycles if the  period of a periodic function is 8 s option (G) 3.75 is correct.

Learn more about the function here:

brainly.com/question/5245372

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7 0
1 year ago
The cost of a book was decreased from 60 to 50 by what percent the price decrased with solution​
Artist 52 [7]

Answer:

The price decreased by 16 1/3%, or approximately 16.3%

Step-by-step explanation:

Use the formula for percent change. If the answer is negative, it is a percent decrease. if the answer is positive, it is a percent increase.

percent change = (new price - old price)/(old price) * 100%

In this case, use:

new price = 50

old price = 60

percent change = (new price - old price)/(old price) * 100%

percent change = (50 - 60)/60 * 100%

percent change = -10/60 * 100%

percent change = -1/6 * 100%

percent change = -100/6% = -50/3% = -16 1/3%

The price decreased by 16 1/3%, or approximately 16.3%

7 0
2 years ago
What is the perimeter of the figure
Fofino [41]

Answer:

Step-by-step explanation:

5 0
3 years ago
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A division of a company that manufactures widgets has been given an annual operating budget of $82,500. The factory's operating
Scrat [10]

Answer: $92,525

Step-by-step explanation:

7 0
3 years ago
Solve for x. Write the smaller solution first, and the larger solution second.<br>x^2 - 4x + 3 = 0​
love history [14]

Answer:

X=1 and X=3

Step-by-step explanation:

Factor: (x-3)(x-1)=0

Solve for X: X=1 and X=3

4 0
3 years ago
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