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bulgar [2K]
3 years ago
14

In the xy-plane, if (-1, 0) is a solution to the system of inequalities y < x + c and y < -x - d, which of the following m

ust be true about c and d? (10 POINTS + BRAINLIEST ANSWER!!)
A. c = d

B. c = -d

C. c < d

D. d < c
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0

Answer:

76 87 12 35 67

Step-by-step explanation:vthats right

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Prove that<br>{(tanθ+sinθ)^2-(tanθ-sinθ)^2}^2 =16(tanθ+sinθ)(tanθ-sinθ)
USPshnik [31]

First, expand the terms inside the bracket you will get

(( \tan {}^{2} (x)  + 2 \tan(x)  \sin(x)  +  \sin {}^{2} (x)  - ( \tan {}^{2} (x)  - 2 \tan(x)  +  \sin {}^{2} (x) ) {}^{2}  = 16( \tan(x)  +  \sin(x) )( \tan(x)  -  \sin(x) )

( 4 \tan(x)  \sin(x) ) {}^{2}  = 16( \tan(x)  +  \sin(x) )( \tan(x)  -  \sin(x) )

16 \tan {}^{2} (x)  \sin {}^{2} (x)  = 16( \tan(x)  +  \sin(x) )( \tan(x)  -  \sin(x) )

16 \tan {}^{2} (x) (1 -  \cos {}^{2} (x) ) = 16 (\tan(x)  +  \sin(x) )( \tan(x)  -  \sin(x) )

16( \tan {}^{2} (x)  -   \frac{  \sin {}^{2} (x) \cos {}^{2} ( {x}^{} )  }{ \cos {}^{2} (x) }

16( \tan {}^{2} (x)  -  \sin {}^{2} (x) ) = 16( \tan(x)  +  \sin(x) )( \tan(x)  -  \sin(x) )

16( \tan(x)  +  \sin(x) )( \tan(x)  -  \sin(x)  = 16( \tan(x)  +  \sin(x) )( \tan(x)  -  \sin(x) )

5 0
2 years ago
4.5 divided -1.5 I just want to know the steps to the answer
Irina18 [472]

Answer:

-3

Step-by-step explanation:

dividing a positive and a negative equals a negative so put the 4.5 in parentheses with the 1.5 and put the negative outside the parentheses. then do what's in the parentheses and add your negative which makes you get a -3

3 0
3 years ago
A class trip was 234 miles away from the school. If the bus driver drove at a constant speed of 70 mph, about how long did the t
galina1969 [7]
C. <span>3 hours 34 minutes

Divide: 
234 ÷ 70 = 3.34

Your answer is C

♥ Hope I helped ♥</span>
7 0
3 years ago
Read 2 more answers
What’s the answer to this question???
Hitman42 [59]
Size bc it’s 8 numbers away
7 0
3 years ago
Which expression is equivalent to 3x - (2x + 4) + 5?<br> x+1<br> x + 9<br> 5x + 9<br> 5x + 1
azamat

Answer:

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Step-by-step explanation:

3x - (2x + 4) + 5

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x + 1

7 0
2 years ago
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