Because tan theta > 0 and cos theta is negative this angle is in the third quadrant.
angle whose cos is 2/5 is 66.42 degrees
The required angle is 180 + 66.42 = 246.42 degrees answer.
The correct answer would be the last option D
This is an inequality, let's solve this step by step!
10h < (2)(2)h
Step 1 : Simplify both sides of the inequality.
10h < 4h
Step 2 : Subtract 4h from both sides:
10h - 4h < 4h - 4h
6h < 0
Step 3: Divide both sides by 6.
6h/6 < 0/6
h < 0
Answer: h < 0
*Note this should be shown on a number line , but I do not know how to insert one on Brainly, sorry.
Answer:
First you need to find at least two dimensions of the triangle containing a side length of x. The triangle of the top can be used for that. The hypothenuse for the 7,3 triangle is
.
Now we can use the other triangle with sides of x,
, and a hypothenuse of 9 to find x.
x^2 +
= 9^2
simplify
x^2 + 58 = 81
subtract 58 from both sides
x^2 = 23
x = 
and since this radical cannot be simplified further that is your answer.
Step-by-step explanation: