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3 years ago

A system of linear equations and the corresponding graph are shown below.

Mathematics

1 answer:

lys-0071 [83]3 years ago

8 0

Answer:

Ummmm

need a picture to answer

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(csc x - 1) (csc x + 1)

victus00 [196]

<h2>Explanation:</h2>

Here we have the following expression:

$(csc x - 1) (csc x + 1)$

So we need to extend this. Remember that the difference of squares tells us:

$(a-b)(a+b)=a^2-b^2$

So here:

$a=cscx \\ \\ b=1$

Thus:

$(csc x - 1) (csc x + 1)=csc^2x-1 \\ \\ \\ But: \\ \\ cscx=\frac{1}{sinx} \\ \\ \\ Then: \\ \\ csc^2x-1=\frac{1}{sin^2x}-1=\frac{1-sin^2x}{sin^2x}=\frac{cos^2x}{sin^2x}=cot^2x \\ \\ \\ Finally: \\ \\ \boxed{(csc x - 1) (csc x + 1)=cot^2x}$

4 0

3 years ago

Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more

swat32

Answer:

Yes he is correct, If it was 100% then it would stay the same 10 hours. But since it's 110%, it is in fact 11.

Step-by-step explanation:

7 0

3 years ago

Part A: Factor 2x2c2 + 3xc2 − 35c2. Show your work. (4 points)

Debora [2.8K]

Answer:

a: 12

B: 5

c: 15

Step-by-step explanation: because you have to multiply and divide but i might have the wrong answerr :((((

3 0

3 years ago

-GEOMETRY PROBLEM- I don’t understand this problem, can anybody help? The question is in the picture. Thanks! I’ll give 15 point

svetoff [14.1K]

In tue picture, we can see 2 triangles and they already labeled 2 congruent sides. We also see that the line in the middle is being shared between the 2 triangles, making the side equal. Using the SSS theorem, we can prove that these teiangles are congruent to each other. Hope this helps.

3 0

3 years ago

Write 0.6 as a percentage.

nataly862011 [7]

Answer:

60%

Step-by-step explanation:

all you need to do is multiply this by 100 (move two decimal places to the right).

0.6--> 60

60 percent

3 0

4 years ago

Read 2 more answers