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Yakvenalex [24]
3 years ago
10

Simplify the linear expressions:1: 2x + 3 - 5x + 72: 3y - 15 - 7y + 19

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
8 0
1. -3x +10
2. -4y + 4

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Verifying Trig Functions
anzhelika [568]

Answer:

The answer to your question is below

Step-by-step explanation:

                csc α - cot α = \frac{sin \alpha }{1 + cos \alpha }

Work with the left part

                \frac{1}{sin\alpha } - \frac{cos \alpha }{sin \alpha}

Simplify

                \frac{1 - cos\alpha }{sin\alpha }

Multiply by the reciprocal

 \frac{1 - cos\alpha }{sin \alpha } x \frac{1 + cos\alpha }{1 + cos\alpha }                                  

Simplify

\frac{1 - cos^{2}\alpha}{sin\alpha (1 + cos\alpha)}

Remember that

                 sin²α = 1 -cos²α

Substitute the previous equation

\frac{sin^{2}\alpha }{sin\alpha(1 + cos\alpha ) }

Simplify

\frac{sin\alpha}{1 + cos \alpha}      

The identity i proved.            

5 0
3 years ago
Please help me solve this!!
Brut [27]

Answer:

30

by-step explanation:

5*5=30

3 0
3 years ago
What does the graph tell you about the value of a in this function f(x)=a(x+k)^1/n+c
Olenka [21]
A. a is greater than zero
7 0
3 years ago
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Help meeeeeeeeeeeeeeeeeeeeeeeee
IRINA_888 [86]

Answer:

118.75

Step-by-step explanation:

47.50 multiplied by 2.5 would equal 118.75

ur welcome :)

3 0
3 years ago
Read 2 more answers
Gina is training for a marathon. She ran 4.6 miles on Friday and 6.75 miles on Saturday. On Sunday, she ran 13 miles. How much f
navik [9.2K]

Answer:

1.65

Step-by-step explanation:

First you need to find the sun of 4.6 and 6.75, you should do this because it is asking for the two numbers combined. When you add these two numbers, you get 11.35

Now you need to subtract 13 and 11.35 because it wants to know how much father she ran on Saturday than friday, signaling subtraction. When you subtract 13-11.35 you should get 1.65

4 0
2 years ago
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