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xz_007 [3.2K]
4 years ago
8

Why is it important to have a control group in an experiment of investigation?

Mathematics
1 answer:
AnnZ [28]4 years ago
6 0

Answer:

I think its A

Step-by-step explanation:

Sorry if I'm wrong

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1×1+9×(1/100)+1 ×(1/1,000)
Fittoniya [83]
Using PEMDAS
P = 1x1+9x(0.01)+1x(0.001)
E = no change
M = 1+0.09+0.001
D = no change
A = 1.091
S = no change
final answer is 1.091
8 0
3 years ago
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Will give brainliest !please help <br><br>4b+7b+5​
Alecsey [184]

Answer:

Terms = 4b , 7b , 5

coefficient = 4 , 7

constant = 5

7 0
3 years ago
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Please help with this algebra question
zhenek [66]
We have
 -2x-3y <12
 For this case what you should do is to graph the following straight line:
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See attached image

7 0
3 years ago
Let F of x equals the integral from 1 to 3 times x of the natural logarithm of t squared. Use your calculator to find F″(1).
eduard
Reading that as

F(x)=\displaystyle\int_1^{3x}(\ln t)^2\,\mathrm dt

By the fundamental theorem of calculus, the first derivative is

F'(x)=3(\ln(3x))^2

and so the second derivative would be

F''(x)=\dfrac{6\ln(3x)}x

which means

F''(1)=6\ln3
7 0
3 years ago
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Factor completely 4h2 + g.
stiv31 [10]

Answer:

8h + g

Step-by-step explanation

When you say "4h2", do you mean 4h multiplied by 2?

If so, then 4h2 = 8h, and 8h+g would be your answer.

Hope this helps :)

8 0
3 years ago
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