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algol [13]
3 years ago
6

Help please I have a final literally tomorrow

Mathematics
1 answer:
VikaD [51]3 years ago
7 0
<h3>Answer: Choice D</h3><h3>sin^2(x) + 1</h3>

========================================================

Work Shown:

2sin^2(x) + cos^2(x)

2sin^2(x) + 1 - sin^2(x) .. see note below

[ 2sin^2(x) - sin^2(x) ] + 1

sin^2(x) + 1

note for step 2 above, I used the Pythagorean trig identity (or a slight variation of it) to replace cos^2(x) with 1-sin^2(x).

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Create a model to show 2 × 5.
Sliva [168]

Answer:

The model is shown in the attached picture. The solution is 10.

Step-by-step explanation:

There are two way of showing a model for 2×5

  1. The tape diagram has 2 equal-sized parts of 5
  2. The tape diagram has 5 equal-sized parts of 2

Both models give the same solution:

  1. 5+5=10
  2. 2+2+2+2+2=10

In the attached picture we can show two types of diagram.

5 0
3 years ago
This figure shows circle O with inscribed ∠XYZ. m∠XYZ=76∘ What is the measure of XYZ?
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Answer:

152

Step-by-step explanation:

Since the measure of angle XYZ is 76 degrees, we know that the measure of XYZ would be twice the amount of the angle measurement due to the square root theorem.  In this case 76 times 2 or 76 plus 76 equals 152 degrees.  152 degrees is your final answer.

6 0
3 years ago
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3 years ago
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Write a sentence describing the meaning of the statement c(2)=40
aev [14]

Step-by-step explanation:

A number,c times two equal forty.

5 0
3 years ago
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vichka [17]
Absolute value of -2 is 2
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now do 8 - 3 = 5
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