11 Lou wrote the expression 3(x + 9) + 8 as his answer to a math problem. Which expression is
equivalent to the expression Lou wrote?
А 3.x. 3.9 + 8
B
3.X + 3.9 + 8
C 3 + x + 3 + 9 + 8
D
3.x. 8 + 3.5.8

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

answer: 5

step-by-step explanation:

but which class are u may know that first

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.