The correct answer is A, or x + 1 = 4x + 5. We used the substitution method to replace y with x + 1.
Answer:
0.07 and
Step-by-step explanation:
convert the fraction into a decimal by dividing the numerator by the denominator.
Answer:
10.
8. 
Step-by-step explanation:
10. each step is 36, so i added it twice to get 72.
then add 16 twice = 32
this gives us two sides to our triangle.
We can now use tan since we know opp and adj
tan 32/72 = .44
arctan = 23.75
8. since we again know the opposite and adjacent sides to the angle e are trying to find we can use tan again.
tan 12.5/18 = .694
arctan= 34.76
Use the pythagorean theorem. It would be set up as
a^2 + 3.7^2 = 4.0^2