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Vera_Pavlovna [14]
3 years ago
6

If tan x=2021 x=20/21 and π< x < 3π/2 what is cos⁡(x+π/2)?

Mathematics
1 answer:
Flura [38]3 years ago
7 0

Answer:

42Sin

Step-by-step explanation:

Speed it up

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The length of a rectangle 4 yd is longer than its width. If the perimeter of the rectangle is 68 yd, find its length and width.
natulia [17]

w + 4

------------------------

l l

l l w

l l

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Perimeter would be the sum of all the sides so: (w+4) + w + (w+4) + w

Perimeter is 60 yards according to your problem so: (w+4) + w + (w+4) + w = 60 yds

1.Simplify/combine like terms:

w + 4 + w + w + 4 + w =

4w + 8 =

Now it's a 2-step algebra equation

4w + 8 = 60

2.Subtract 8 on both sides

4w = 56

3.Divide both sides by 4

w = 14

4 0
2 years ago
Which number is a factor of the prime factorization of 60? <br>3, 15, 9, or 6​
Anton [14]

Answer:3

Step-by-step explanation:

4 0
2 years ago
Two angles of a triangle measure 12º and 40°.
Sloan [31]

Answer:

12+40= 52

180-52=128

Step-by-step explanation:

Angles in a triangle add up to 180

so if two sides are given , they must be added and subtracted from 180.

which gives us 180-52=128

8 0
3 years ago
Read 2 more answers
Please help me with this question!
Reil [10]

\cos(theta)  =  \frac{60}{61}

7 0
3 years ago
Give me the answer.​
cestrela7 [59]

Answer:

Step-by-step explanation:

Vertically opposite angles are equal.

5x - 12 = 4x + 38

5x - 4x = 38 + 12

         x = 50

7 0
2 years ago
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