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VikaD [51]
3 years ago
10

Find the exact value of tan5x/4

Mathematics
1 answer:
alexandr402 [8]3 years ago
7 0
To evaluate for tan 5x/4 we proceed as follows
5x/4
=5/4*150
=225
which is in quadrant III. 
This implies that the value of tan will be positive, hence:
tan 225=tan (270-225)
tan 225=tan 45
using right angle with length of the legs being unit, then 
tan 45=1
hence
tan 5x/4=1

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If the side of the square is (4x-2y) what is the perimeter of the square
Luda [366]

The perimeter of a square is a^2. In this case a= (4x-2y) so a^2=(4x-2y)^2 , a^2={16(x)^2-16xy+4(y)^2}

3 0
4 years ago
Which is the area of a circle with circumference of 15.7 units?( Use 3.14 for )
damaskus [11]
A = π(r²) --- r is radius

C = πd --- d is diameter

First, the circumference must be found. If the circumference is 15.7, plug it in.

15.7 = πd

We know what pi is.

15.7 = 3.14 (d)

Now, simply divide 3.14 by 15.7 to find the diameter (d). You get 5. Since the radius is half of the diameter, the radius is 2.5. Plug this into the area formula, and plug pi in, too.

A = 3.14(2.5²) 

2.5 to the second power is 6.25.

A = 3.14(6.25)

Tada! Multiply, and you're left with 19.625!
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4 0
3 years ago
Read 2 more answers
I need help urgently please!!!!! Will absolutely mark the brainiest whoever answers this correctly!
yulyashka [42]
If i plug it into my calculator i get 9914 as my answer,

Explanation:
but if that’s not the right answer lmk and i can solve it a different way!
5 0
3 years ago
A university law school accepts 2 out of every 5 applicants. If the school accepted 180 ​students, find how many applications th
Rina8888 [55]

2/5 = 0.4

let x = amount of applications received

180 = 0.4x.

Divide each side by 0.4

450 = x

The school received 450 applications

7 0
3 years ago
What is 8×5/7 answer
VikaD [51]

Answer:

5.714

Step-by-step explanation:

8*5= 40

40/7= 5.714

7 0
3 years ago
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