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pogonyaev
3 years ago
14

Find the product -7(-a2)(-b3)

Mathematics
1 answer:
vlada-n [284]3 years ago
7 0
-7(-a^2)(-b^3)=\boxed{-7a^2b^3}
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The number of calories burned C varies directly with the time spent exercising T when then it swats for 4 hours he burns 800 cal
kykrilka [37]

Answer:

<u>Option D : c =200t</u>

Step-by-step explanation:

The number of calories burned C varies directly with the time spent exercising T

∴  ∝ t

∴ c = a t

Where a is the constant of proportion

exercising for 4 hours he burns 800 calories

∴ c = 800 when t = 4

∴ 800 = 4 a

∴ a = 800/4 = 200

∴ c = 200 t

<u>The answer is option D : c =200t</u>

3 0
3 years ago
What is the simplified form of the equation 4/5n - 1/5 = 2/5n ?
Gnoma [55]

we are given

\frac{4}{5}n -\frac{1}{5} =\frac{2}{5}n

Firstly , we will multiply both sides by 5

5*\frac{4}{5}n -5*\frac{1}{5} =5*\frac{2}{5}n

now, we can simplify it

4n-1 =2n

2n =1

now, we can solve for n

n =\frac{1}{2}.............Answer

8 0
3 years ago
Describe two methods for converting a mixed number to a decimal
uysha [10]
R example: 6 1/2 = 13/2 = 6.5

For the first example, six and a half is equal to thirteen halves, which is then equal to six point five. To do this, the rule to turn a mix number into a fraction is by multiplying the 2 with the 6 and then add the answer to 1, which gives 13/2 (Remember to always give the same denominator). Finally, thirteenth halves is equal to six point five (because when you divide 13 by 2, you get 6 and one left over. To continue dividing, add a 0 , and so 10 goes into 2 is five. so the decimal is 6.5

4 0
4 years ago
A nutritionist wants to know how the taste of artificial sweeteners impacts food choices of diabetic patients. From which group
kvasek [131]

The nutritionist should collect data from all diabetic patients to obtain accurate results.

<h3>What is the ideal population for this study?</h3>

This study aims at analyzing the food choices of diabetic patients. Because of this, the population studied should be diabetic patients including different types such as gestational, type I and II.

Moreover, because this affects to all diabetic patients, they all should be included even if they do not usually eat foods with arficial sweeteners.

Based on this, the best population is all diabetic patients.

Learn more about diabetic in: brainly.com/question/14823945

#SPJ1

6 0
2 years ago
Read 2 more answers
Answel
LiRa [457]
22 rides would be needed Explanation: one ride takes 6 kids and there are 130 kids 20 rides would take 120 21 rides would take 126 and since you can’t have kids without a ride and you can’t cut a ride into pieces there must be 22 rides
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