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Ira Lisetskai [31]
3 years ago
6

The width of a rectangle is represented by 5 + 2y. The length is twice as long as the width. What is the perimeter of the rectan

gle? Give all correct answers
Mathematics
1 answer:
Lilit [14]3 years ago
3 0
The answer is 12y+30.
Twice the width would be 10+4y, so the length is 10+4y.
To find the perimeter, we can do 2(5+2y) + 2(10+4y).
That equals 10+4y+20+8y.
Which, equals 12y+30.
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None they are parallel lines - same slope different y intercept
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3 years ago
Find the height of a parallelogram if its base is 9 feet and its area is 27 square feet
Zinaida [17]

Answer:

H=3ft

Step-by-step explanation:

Base=9

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I hope I can help you :)

5 0
3 years ago
Question: Carbon-11 has a half-life of about 20 minutes. If we start with 200 grams, how
irakobra [83]

Answer:

C). 0.39 grams

Step-by-step explanation:

First find how many half-lifes are in 3 hours:

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3 0
3 years ago
If four blue marbles and eight non-blue marbles make a probability of 0.33, how many non-blue marbles do you need to combine wit
den301095 [7]

The number of non-blue marbles you need to combine with the blue marbles to achieve a probability of 0.1 is 28.

<h3>How many non-blue marbles are needed?</h3>

Probability determines the odds that a random event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.

The more likely the event is to happen, the closer the probability value would be to 1. The less likely it is for the event not to happen, the closer the probability value would be to zero.

Probability of picking a blue marble = number of blue marble / total number of marbles

4 / (4 + 8)

4/12 = 0.33

The number of non-blue marbles needed = ( 4 / 0.1) - 12

40 - 12 = 28

To learn more about probability, please check: brainly.com/question/13234031

#SPJ1

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2 years ago
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