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spayn [35]
4 years ago
15

Tan x= sin x/cos x. Therefore, tan (90-A)°= ? (All angle measurements are in degrees)

Mathematics
2 answers:
Angelina_Jolie [31]4 years ago
5 0
In the first quadrant, tangent, sine and cosine function are all positive.

So tan(90-A) = sin(90-A) / cos(90-A) = cos(A) / sin(A) = 1/tan(A)

Answer is d
Licemer1 [7]4 years ago
3 0

Answer:

1/tan A is the answer to the question.

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A number x decreased by 3 is 5.
kondaur [170]

Answer:

8

Step-by-step explanation:

X=8 bc 8-3=5

4 0
3 years ago
There are 2 Senators from each of 50 states. We wish to make a 3-Senator committee in which no two members are from the same sta
Morgarella [4.7K]

Answer:

a) rCn = 1176

b) 2352

Step-by-step explanation:

a)Each committee should be formed with 3 members ( no two members could be of the same state) then

Let´s  fix a senator for any of the 50 states so in the new condition we need to combined 49 senators in groups of 2 then

rCn =  n! / (n - r )! *r!

rCn =  49!/ (49 - 2)!*2!

rCn =  49*48*47! / 47!*2!

rCn = 49*48 /2

rCn = 1176

So we can choose in 1176 different ways a senator for a given state

b) To answer this question we have to note, that, 1176 is the number of ways a committee can be formed with senators of different sate (taking just one senator for state ) if we have 2 senators we need to multiply that figure by 2.

1176*2 = 2352

6 0
3 years ago
Solve radical equation
xeze [42]
Remove the radical by raising each side

6^2= square root 8x-4 ^2

36= 8x-4

40= 8x

X=5
6 0
4 years ago
Read 2 more answers
Write 0.002358 in scientific notation.
statuscvo [17]
The answer is
2.358×10^-3
6 0
4 years ago
Need help with number 6 and how did you get it
Soloha48 [4]
A rectangular prism is just a shape that looks like a brick.

If you think about a brick for a few seconds, you'll realize
that it has

-- 2 faces of  (length by width)
-- 2 faces of  (length by height)
and
-- 2 faces of  (width by height).

The dimensions of the brick in question 6 are 8ft, 3ft, and 5ft.
So it has

-- 2 faces of  8ft  by  3ft
-- 2 faces of  8ft  by  5ft
and
-- 2 faces of  3ft  by  5ft .

Can you take over and complete it now ?
3 0
3 years ago
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