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Ivan
1 year ago
9

Simplify- 9 (1 - r) + 3r

Mathematics
1 answer:
LUCKY_DIMON [66]1 year ago
8 0

Answer:

Step-by-step explanation:

Hello

Simplify :

9 (1 - r) + 3r

= 9 - 9r + 3r

= 9 - 6r

= 3(3 - 2r)

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Ari is designing a patio that will be 20 feet long and 16 feet wide. He makes a scale drawing of the patio using a scale of 1 in
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2. At a local restaurant, 55% of people order an appetizer to start while 25%
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Answer:

Probability of people order a salad or an appetizer P(A∪B) = 62%

Step-by-step explanation:

Given:

Probability of appetizer P(A) = 55%

Probability of salad P(B) = 25%

Probability of choose both P(A∩B) = 18%

Find:

Probability of people order a salad or an appetizer P(A∪B)

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P(A∪B) = P(A) + P(B) - P(A∩B)

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5 0
2 years ago
each month for 7 months, Samuel mows 3 lawns. how many more laws does he need to mow before he has mowed 29 lawns
Kitty [74]
Samuel started out with 21 mowed lawns. 7(months) x 3(lawns) = 21
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Although this is one mowed lawn over the objective, any less would not reach 29. 

I'm not really sure what the question is asking, so here's two answers:
He would have to mow lawns for another 3 months in order to mow 29 lawns.

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Andrea conducts a science experiment and observes that the height of a plant depends on the amount of sunlight it receives. The
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Answer:

Option C. F(s)=0.004s+37

Step-by-step explanation:

Let

F(s) ----> the plant's height in cm

s -----> the number of hours of sunlight

we know that

The equation of the line in slope intercept form is equal to

y=mx+b

where

m is the slope of rate of change

b is the y-intercept or initial value

In this problem we have

m=0.004 cm/h -----> the slope is the rate of grow

b=37 cm ----> the y-intercept (initial value)

substitute the values in the equation

y=0.004s+37

Convert to function notation

F(s)=0.004s+37

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