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Tanya [424]
2 years ago
12

Subtract. –84 – 55 a. –29 b. –139 c. 29 d. 139

Mathematics
1 answer:
Hitman42 [59]2 years ago
8 0
-84 - 55 = -139 Here both have same sign (-) so u add and put the common sign(-) .... So the answer is option B ( -139)... Hope it helps!!!
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velikii [3]
<h3>Answer: B) Experiment</h3>

Reason:

Whenever you have two groups like this, one labeled the treatment group and the other the control group, we have an experiment gong on.

The treatment group gets the actual medication that is being tested. The control group gets a fake medication, aka placebo. Usually a placebo is meant for humans because it's more of a psychological factor. With cats, it likely won't affect them. However, such practices of having two groups like this is standard no matter what group of subjects you're testing.

The idea is that if the treatment group has better results compared to the placebo group, then it's likely the medication works.

4 0
2 years ago
Please help. Solve the triangle. Round ans to the nearest tenth.
White raven [17]

9514 1404 393

Answer:

  • C = 21°
  • a = 13.3
  • c = 5.4

Step-by-step explanation:

The third angle can be found from the sum of angles in a triangle.

  A + B + C = 180°

  C = 180° -62° -97°

  C = 21°

__

The remaining side lengths can be found using the Law of Sines.

  a/sin(A) = b/sin(B)

  a = sin(62°)(15/sin(97°)) ≈ 13.34

Similarly, ...

  c/sin(C) = b/sin(B)

  c = sin(21°)(15/sin(97°)) ≈ 5.42

The remaining side lengths are approximately ...

  a ≈ 13.3

  c ≈ 5.4

4 0
3 years ago
Please help me solve this ​
iren [92.7K]

Answer:

The answer is D

Step-by-step explanation:

180(6-2)

180 times 4

720

7 0
3 years ago
Complete square to solve <br> 3x^2 + 12x – 9 = 0
kykrilka [37]

Answer: I hope this answer your question

Step-by-step explanation: Have a brilliant day mate- Lily ^_^

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How does a graph show a proportional relationship?
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By using and X,Y grid starting at zero and then making its way to 1,4 for example showing that for every 1 X there are 4 Y's
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3 years ago
Read 2 more answers
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