Answer:
Step-by-step explanation:
Given
Required
Find
Calculate 
Using tan rule
So:
'
'So:
40% of (times) X
4/10 of (times) X or 2/5 or .4
145 (times) .4 which is 58
A = 0.1
B = 50.9
These are rounded to the nearest tenth
Answer:
x = 20°
y = 70°
Step-by-step explanation:
the angle adjacent to the 40° angle must be 140° because the two angles form a straight line (which contains 180°)
in the isosceles triangle with the 'x', that means the other two angles must be equal and are (180-140) ÷ 2, which equals 20°
to find 'y', consider the larger right triangle with angles of 90° and 20°; angle y must equal 180 - (90 + 20) = 70°
Answer:
(
−
∞
,
∞
) {
x
|
x
∈
R
}
Step-by-step explanation:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
