Answer:
x = 16.6
Step-by-step explanation:
Since we know the measure of an acute angle (31 degrees) of a right angle triangle, and of the side opposite to the angle (10), and we need to find the measure of the adjacent side "x", we use the tangent function:

which rounded to one decimal is
x = 16.6
Answer:
A) $15
Step-by-step explanation:
let x represent the regular price of the mirror
so, 20% of x = 3
20/100 * x = 3
20x = 300
x = 300/20
x = 15
Hence, the regular price of the mirror is $15
Sin (A) = BC/AB = 21/75= 7/25
Step-by-step explanation:
78 = m32
m = 78/32 = 39/16 = 2.4375
Answer:
C
Step-by-step explanation:
The distance YZ is sqrt(34^2-30^2)=16