Answer:
D. 72 + (5x + 8) = 180, x = 20.
Step-by-step explanation:
Supplementary angles are angles that add up to 180, so the equation would be 72 + (5x + 8) = 180.
Now here, to find the value of x, solve for x.
72 + (5x + 8) = 180
5x + 8 = 108
5x = 100
x = 20
Your answer is D, 72 + (5x + 8) = 180, x = 20.
The correct question is
Given that sinx=3/5 where x is an acute angle, what is cosx and tanx<span>?
we know that
</span>since x is acute 0<x<<span>π/2
</span><span>then the trigonometric rations will be positive</span>
sin ²x+cos²x=1------------> cos²x=1-sin²x-------> cos²x=1-(3/5)²----> 1-(9/25)
cos²x=16/25----------> cos x=4/5
the answer part A) is
cos x=4/5
tan x=sin x/cos x
so
tan x=(3/5)/(4/5)---------> tan x=3/4
the answer part B) is
tan x=3/4
Subtract 18 from both sides and the answer is x=-26
Three examples of exponent rules are;
Product of Powers Rule
Quotient of Powers Rule
Power of a Power Rule
Hope this helps!
The length of side LM in the triangle LMN is 6.75 cm.
<h3>
Similar figures</h3>
Two figures are said to be similar if they are of the same shape and the ratio of their corresponding sides are in the same proportion.
From the diagram:
LM / HJ = JK / MN
LM / 4.5 = 9 / 6
LM = 6.75 cm
The length of side LM in the triangle LMN is 6.75 cm.
Find out more on similar figures at: brainly.com/question/26173060