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d1i1m1o1n [39]
3 years ago
15

he radius of a circular oil slick expands at a rate of 8 m/min. (a) How fast is the area of the oil slick increasing when the ra

dius is 26 m?
Mathematics
1 answer:
Sloan [31]3 years ago
3 0
If it's expanding 8m per minute, then you have to multiply 8 by 26.

1 minute = 8 m
2 minutes = 16 m
5 minutes = 40 m
10 minutes = 80 m
26 minutes = 208

8 * 26 = 208

So when it reaches 26 m in length, it'll be expanding 208m per minute.
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Every day, Paula performs physical activity on her treadmill. For an hour, she runs 15,000 meters. Knowing that she spends an ho
natali 33 [55]

Answer: 105 kilometers

Step-by-step explanation:

1 kilometer=1,000 meters

15,000 (meters a day) x 7 (days a week) = 105,000 meters.

Convert the meters to kilometers:

105,000/1,000 = 105 kilometers

3 0
3 years ago
Solve the equation using square roots.
anastassius [24]

Answer:

A : ±2

Step-by-step explanation:

Add 14 and you have ...

... x² = 4

Take the square root and you have ...

... x = ±√4 = ±2

3 0
3 years ago
How do the gcf and the lcm help you when multiplying and adding or subracting fractions
kari74 [83]
<h3>Explanation:</h3>

GCF: the greatest common factor of numerator and denominator is a factor that can be removed to reduce the fraction.

  <em>Example</em>

The numerator and denominator of 6/8 have GCF of 2:

  6/8 = (2·3)/(2·4)

The fraction can be reduced by canceling those factors.

  (2·3)/(2·4) = (2/2)·(3/4) = 1·(3/4) = 3/4

___

LCM: the least common multiple of the denominators is suitable as a common denominator. Addition and subtraction are easily performed on the numerators when the denominator is common.

  <em>Example</em>

The fractions 2/3 and 1/5 can be added using a common denominator of LCM(3, 5) = 15.

  2/3 + 1/5 = 10/15 + 3/15 = (10+3)/15 = 13/15

4 0
3 years ago
jane can do a job in 3 hours, while gary can do the same job in 2 hours. if jane works alone for an hour before gary helps her h
Rudiy27

Answer: 2hrs?

Step-by-step explanation: 3-2=1+1 hour she took alone = 2hrs

8 0
2 years ago
Read 2 more answers
What is -a-2 if a = -5?
Vladimir79 [104]

Answer:

3

Step-by-step explanation:

-(-5) -2

5 - 2

3

3 0
2 years ago
Read 2 more answers
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