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gtnhenbr [62]
3 years ago
8

Are These two aright?​

Mathematics
1 answer:
Over [174]3 years ago
3 0

Answer:

◑__◐

Step-by-step explanation:

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Which system of inequalities is shown in the graph?
-Dominant- [34]

Answer:  A. -3x+y>-2 and 2y>x+2

Step-by-step explanation: Graph is shown down below.

Hope this helps you out! ☺

3 0
3 years ago
Simply (tan^2 x - sec^2 x)(sin^2 x + cos^2 x)
kati45 [8]

we can use pythagorean identieis

remember that sin^2(x)+cos^2(x)=1

also remember that tan(x)=\frac{sin(x)}{cos{x}} and sec(x)=\frac{1}{cos(x)}

so if we take sin^2(x)+cos^2(x)=1 and divide both sides by cos^2(x) we get

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

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

tan^2(x)+1=sec^2(x)

subtracting 1+sec^2(x) from both sides

tan^2(x)-sec^2(x)=-1

now subsitute into original problem


\frac{tan^2(x)-sec^2(x)}{sin^2(x)+cos^2(x)}=

\frac{-1}{1}=

-1

the answer is -1

6 0
3 years ago
(MARK BRAINLIST)
viktelen [127]

Answer:

Spirit Realm

Hello, My Shining Love

5 0
3 years ago
Read 2 more answers
A survey of 1,000 people was done by New York Times. 80% of the people did not know the name of their representative in Congress
Citrus2011 [14]
Okay, so how I solve this answer is by first figuring out how many people didn't know the name.

So, If 80% of 1,000 didn't know the name that means 800 people did not know the name.
                   (1000 x .8 = 800)

Then you take the total number of people, 1000, minus the people who did not know the name, 800, and you get the total number of people who did know the name which is; 
                   (1000-800=200)

200 people knew the name of the congressman.
5 0
4 years ago
Read 2 more answers
Which scales are equivalent to 1 inch to 1 foot? Select all that apply. Group of answer choices 1 to 12 (1/12) to 1 100 to 0.12
Bad White [126]

Answer:

  • 1 to 12
  • 5 to 60
  • 9 to 108

Step-by-step explanation:

There are 12 inches in one foot so the equivalent ones are:

1 to 12

This shows that there are 12 inches in one foot so is equivalent.

5 to 60

5/60 = 1/12

This is equivalent because it shows that 12 inches are required to make a foot.

9 to 108

9/108 = 1/12

This is also equivalent for the same reasons as above.

4 0
3 years ago
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