Using one of the above equations, you can find the value of x.
tan x = 84/13 => x = tan-¹(84/13)
x = 81.20°
Hope that helps
Answer:

Step-by-step explanation:
Given the Pythagorean Identity:

We want to solve for sin(C).
First, we will subtract cos²(C) from both sides:

Next, we will take the square root of both sides. Since we are taking an even-root, we will need to add plus/minus. Hence:

The answer of this problem is A because 3 times 21 is 63 and then you plus 1
which is 64
Answer:
look below
Step-by-step explanation:
To round a number to the nearest tenth , look at the next place value to the right (the hundredths). If it's 4 or less, just remove all the digits to the right. If it's 5 or greater, add 1 to the digit in the tenths place, and then remove all the digits to the right.
A. cause i did it on the calculator so i know its right