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Dmitry [639]
2 years ago
9

Brainliest if correct! Please explain how this is done!

Mathematics
1 answer:
Korvikt [17]2 years ago
5 0

The value of csc C in fraction and in decimal form is as follows:

csc C  = 5 / 3

csc C = 1.66666666667

Using trigonometric ratio,

secant A = 1 / cos A = hypotenuse / adjacent

Therefore,

sec A = 5/3

sec A = 1 / cos A

cos A = adjacent / hypotenuse

cos A = 3 / 5

A = cos⁻¹ 0.6

A = 53.1301023542

Therefore,

∠A = 53°

∠B = 90°

∠C = 180 - 143 =  37°

cosec C = 1 / sin C = hypotenuse / opposite

cosec C = 5 / 3

learn more about trigonometry here: brainly.com/question/25942962?referrer=searchResults

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-4x-2y=-12 4x+8y=-24
Alla [95]

Answer:

x=6\\ \\y=-6

Step-by-step explanation:

Given the system of two equations:

\left\{\begin{array}{l}-4x-2y=-12\\ \\4x+8y=-24\end{array}\right.

Add these two equations (left side add to left side and right side add to right side):

-4x-2y+4x+8y=-12+(-24)\\ \\-2y+8y=-12-24\\ \\6y=-36\\ \\y=-6

Substitute y=-6 into the first equation:

-4x-2\cdot (-6)=-12\\ \\-4x+12=-12\\ \\-4x=-12-12\\ \\-4x=-24\\ \\x=6

8 0
3 years ago
Which equation shows the opposite of the opposite of 5? SHOW ALL WORK!
lions [1.4K]
The opposite of something means to change this signed that is with the number.

If it is a positive number, the opposite would be negative.

So in this example, if it's the opposite of positive 5, that is -5. The opposite of -5 would be positive 5.

The equation that shows this correctly would be D.
3 0
3 years ago
What is the area of a rectangle if the length is 1/2 and the width is 1/4
Ostrovityanka [42]

Answer:

Step-by-step explanation:

its the size of my nut$. hope this helps!

6 0
3 years ago
Please really need help on this please
astraxan [27]

Answer:

22222.#2345/(87559grudj

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3 years ago
Can someone see if this is right
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Correct, the answer is B.
5 0
3 years ago
Read 2 more answers
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