Answer:
ZB= 39°
Step-by-step explanation:
complementary angles are angles that add up to equal 90
equation: 7x + 23 + 5x + 19 = 90
add like terms: 12x + 42 = 90
subtract 42 from both sides: 12x = 48
divide both sides by 12: x = 4
plug in the value of x to the equation for ZB: 5(4) + 19
simplify: ZB= 39°
Sine 35 degrees = x / 20
x = sine 35 degrees * 20
x = .57358 * 20
x = 11.4716
Answer:
7.3%
Step-by-step explanation:
Given:
<em>Formula for Rate of interest </em>
:
Where 
is the rate of interest.
dollars is the loan and
years is the time for which interest is to be paid
To find:
Solution:
Putting the given values in the formula:
Multiply the above value with 100 to find the percentage.
i.e.
Therefore, the answer is <em>7.3%</em>
Answer:
B
Step-by-step explanation:
150 degrees
