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DENIUS [597]
3 years ago
7

BRAINLY POINT CHALLENGE

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

90ft2

Step-by-step explanation:

rectangle= BH

Triangle= BH/2

add em together and you get you're answer

(B is base and H is height)

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Which shows all the exact solutions of sin^2 x + 3cos x - 1 = 2?
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Answer:

x = 2k\pi is the solution of this equation.

Step-by-step explanation:

This question is related to trigonometric equations.

The given equation is,

sin^{2} x + 3cos x - 1 = 2

We have to find the solutions of this equation.

Put sin^{2}x  = 1 - cos^{2}x

1 - cos^{2}x + 3cosx - 1 = 2

cos^{2}x -3cosx+2 = 0

For this equation only cosx = 1 is possible solution.

Cosx = 1 happens when x is a multiple of 2\pi

So x = 2k\pi is the solution of this equation.

3 0
3 years ago
How do I answer this question?
siniylev [52]

Answer:

u = (sa) + k

Step-by-step explanation:

s =  \frac{u - k}{a}  \\  =  > sa = u - k \\  =  > (sa)  + k = u

4 0
3 years ago
How can you add 3/10+2/5
11Alexandr11 [23.1K]

Answer:

7/10

Step-by-step explanation:

3/10+2/5=3/10+4/10=7/10

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3 years ago
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sara spent $ 2.30 on sweets , $ 3.20 on a pencil and $ 9.15 on an excerise book . What steps would you use to find out much less
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2.30 plus 3.20 and 9.15 is 14.65 .
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How can I use number patterns to find the lcm of 120 and 360
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You can use number patterns to find the LCM of 120 and 360 by multiplying 120 by 1,2,3,4,5,6,and so on and do the same with 360 until you find the least number that they have in common.
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