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PolarNik [594]
3 years ago
7

Tan 21 degrees = 9/x

Mathematics
1 answer:
REY [17]3 years ago
5 0

Answer:

23.4458015822

Step-by-step explanation:

tan(21) = 9/x

9/tan(21) = x

9/tan(21) = 23.4458015822

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-4x = -24 what is x?
andreyandreev [35.5K]

Answer:

6

Step-by-step explanation:

All you have to do is divide -4 on both sides and you get 6!

-4x= -24

/-4   /-4

x  =  6

I hope this helps, and have a great day!

6 0
2 years ago
Let f(x) = 2x – 1, g(x) = 3x, and h(x) = x2 + 1. Compute the following.
yaroslaw [1]
4. Since f(x) = 2x - 1, we are looking for h(2x - 1), which is (2x-1)^2 + 1. By tha time you expand this you'll get, 4x^2 - 4x + 2. So that is the answer.
5. f(f(x))  = f(2x - 1) = 2(2x - 1) - 1 = 4x - 3
6. h(g(x)) = h(3x) = (3x)^2 + 1 = 9x^2 + 1

8 0
3 years ago
The function h(t)=16t^2+144 represents the height , h(t) , in feet , of an object from the ground at t seconds after it is dropp
mafiozo [28]
0≤h(t)≤144, which means that the height of the object can be between 0 and 144 feet, including those limits.
4 0
3 years ago
Verify sin(360° - 0) = -sin0​
zaharov [31]

Answer:

see explanation

Step-by-step explanation:

Using the Addition formula for sine

sin(x ± y) = sinxcosy ± cosxsiny

Consider the left side

sin(360 - Θ ), then

= sin360°cosΘ - cos360°sinΘ

= 0 × cosΘ - 1 × sinΘ

= 0 - sinΘ = - sinΘ → verified

6 0
3 years ago
Read 2 more answers
State if a triangle is acute, obtuse, or right.
almond37 [142]
The answer is A) Right because the lengths 3 cm and 3 cm are obviously the same so it will form a right angle
6 0
3 years ago
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