Do you have a picture of this problem? I don’t have enough information to solve it.
For example x^2=25
Without x the expression wouldn't exist, it allows you to calculate unknowns for example in a physics experiment using v=u+at
12.5% of 140g is 17.5
add that to 140 and you get 157.5g
Answer: -15/8
Step-by-step explanation:
Using PEMDAS:
[18-(-8)^2] + 16 / 2^4
(18-64)+16 / 16
-46+16 / 16
-30/16
(Simplified) -15/8
Answer:

Step-by-step explanation:
Tan θ =
= 
So, Perpendicular = b, base = a
<em><u>Finding hypotenuse by Pythagorean Theorem:</u></em>

=> So, <u><em>hypotenuse = c</em></u>
Sin θ = 
Cos θ = 
So, <u><em>Now finding </em></u>
=>
÷ 
=>
÷ 
=> 
=> 