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Novay_Z [31]
2 years ago
11

Is there a proportional relationship between x and y? Explain.

Mathematics
1 answer:
34kurt2 years ago
3 0

Answer:

The answer is B. Hope it helps :)

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Which number is a composite number? 11 21 31 41
erastovalidia [21]

Answer:

21

Step-by-step explanation:

It is 21 since 21 = 3 * 7.

The other 3 numbers are prime.

4 0
3 years ago
Read 2 more answers
Peg and Larry purchased “no contract” cell phones. Pegs phone costs $25 plus $0.25 per minute. Larry’s phone cost $35 plus $0.20
marissa [1.9K]
Let x be the number of minutes Peg and Larry used their phones. So their costs can be written as:

Cost of Peg's Phone usage = 25 + 0.25x
Cost of Larry's Phone usage = 35 + 0.20x

We are to find when the Peg's phone will be more than Larry's phone. We can set up the inequality as:

25 + 0.25x > 35 + 0.20x

Re-arranging the inequality

0.25x - 0.20x > 35 - 25

0.05x > 10

x > 10/0.05

x > 200

Thus, Pag's phone will cost more if the number of minutes of phone usage is more than 200
5 0
3 years ago
Determine the value of K that would make this expression a perfect square
Mumz [18]

Answer: k=9/4

Step-by-step explanation: We can do this by finding a number that adds up to 3 when multiplied by 2. The best way to do this is to use ((b^2)/4) which can usually find you the number for a perfect square based on b, which we have. So, 3^2 / 4 =9/4, meaning k=9/4. We can check:

>x^2 +3x +9/4

> (x+3/2)(x+3/2)

Perfect square.

4 0
3 years ago
Which of the following is the surface area of the right cylinder below?
ankoles [38]

Answer:

the answer is b

Step-by-step explanation:

5 0
3 years ago
Which of the following statements is true? A) A counting semaphore can never be used as a binary semaphore. B) A binary semaphor
saveliy_v [14]

Answer:

C

Step-by-step explanation:

Statement C of the following statements is true

C). Spin-locks can be used to prevent busy waiting in the implementation of semaphore.

5 0
3 years ago
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