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LekaFEV [45]
3 years ago
6

Help me please????............

Mathematics
1 answer:
Ad libitum [116K]3 years ago
5 0

Answer:

The answer is A Have some volunteers drink nothing at all

Step-by-step explanation:

A control group is a group of people who don't have the variable they are the base and what we compare everything to so we would see if their mouth was spicy after eating it and not drinking anything then we would know that if someone drinks milk and their mouth is not spicy then it worked but if we don't have the control group then how do we know that just not drinking milk wouldn't have worked

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8 0
4 years ago
What is the answer? And how do I Solve, you get brainiest if you show steps clearly.
scoundrel [369]

Step-by-step explanation:

solution,

given

DF = 42

DE = 7x+1

EF = 4x-3

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here,

or, DF = DE +EF

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or, 42 = 11x-2

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or, 44/11 = x

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4 0
4 years ago
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laiz [17]

Answer:

Step-by-step explanation:

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5 0
3 years ago
Find the value of y.
Serggg [28]
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4 0
3 years ago
Read 2 more answers
The population of a city in the year 2000 was 4,400. In 2010, the population was 5,060. Find the percent increase in the populat
larisa86 [58]

Answer:

total population in the year 2000=4400

total population in the year 2010=5060

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increase percent=660/4400*100%

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Step-by-step explanation:

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therefore the population will be 5819 in 2020

6 0
3 years ago
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