That is true because factors of 40 are 10,5
Answer:
Part a) 
Part b) 
Step-by-step explanation:
step 1
Find the length side BC
Applying the law of sines
we know that

we have



substitute

solve for BC


step 2
Find the measure of angle B
we know that
The sum of the interior angles in a triangle must be equal to 180 degrees
so

substitute the given values




step 3
Find the length side AC
Applying the law of sines
we know that

we have



substitute

solve for AC


Answer:
see explanation
Step-by-step explanation:
Given
f(x) =
- 4
let f(x) = y
y =
- 4
Switch x and y and solve for y, that is
x =
- 4 ( add 4 to both sides )
x + 4 = 
Take the ln of both sides
ln(x + 4) = ln
= 2y
= 2y
Divide both sides by 2
y =
, that is
(x) = 
All you need to do is divide it 4.9/9.8 which would equal 0.5