I got you- The answer is (B. 4) hope this helps, if you need me to explain ask in the comments. Have a good day/night:)
Answer:
Option D.
Step-by-step explanation:
In this problem
we have
where
B is the Final Investment Value or a Balance
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
in this problem we have
substitute in the formula above
Answer:
Part 1) The measure of angle EYL is 
Part 2) The measure of arc EHL is
and the measure of arc LVE is 
Step-by-step explanation:
we know that
The measurement of the outer angle is the semi-difference of the arcs which comprises
Part 1)
Let
x------> the measure of arc LHE
y----> the measure of arc LVE
we know that


Find the value of y

<em>Find the measure of angle EYL</em>

substitute the values

Part 2)
Let
x------> the measure of arc EHL
y----> the measure of arc LVE
we know that
-----> equation A


substitute


--------> equation B
equate equation A and equation B and solve for y




Find the value of x

therefore
The measure of arc EHL is 
The measure of arc LVE is 
For this case, the first thing we must do is define variables.
We have then:
x: amount of time the assistant works
Y: amount of time the experienced person works
We then have the following system of equations:
x + y = 4
y = (1/2) x
Solving the system we have:
x = 8/3
y = 4/3
Answer:
It would take the roofer, working alone, to complete the same job about:
y = 4/3 hours