Answer:
Oil changes = 5
Vincent = 10 oil changes
Warren = 10 oil changes
Step-by-step explanation:
Vincent = 5 + h
Warren = 2h
Where,
h = number of oil changes
How long will that take?
Vincent = Warren
5 + h = 2h
5 = 2h - h
5 = h
h = 5
Number of oil changes = 5
How many oil changes will Vincent and Warren each have done?
Vincent = 5 + h
= 5 + 5
= 10 oil changes
Warren = 2h
= 2(5)
= 10 oil changes
The values of sin theta and tan theta are √45/7 and √45/4 respectively
Given the following trigonometry identity
cos Θ = -4/7
This shows that
Adjacent = 4
Hypotenuse = 7
Determine the opposite
x^2 = 7^2 - 4^2
x^2 = 49 - 4
x^2 = 45
x = √45
Determine the value of sin Θ
sin Θ = opp/hyp
sin Θ = √45/7
Determine the value of tanΘ
tanΘ = opp/adj
tanΘ = √45/4
Hene the values of sin theta and tan theta are √45/7 and √45/4 respectively
learn more on triginometry here: brainly.com/question/24349828
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(-15b - 7) - (-2b)
Answer:
13b + 7
Step-by-step explanation:
Combine like terms. (-15b - 7) - (-2b), add -15b to both sides, the equation then becomes (-7) - (13b). Swap the equation around to become (13b) - (-7), a subtraction sign and then a negative makes the negative a positive. The equation then becomes 13b + 7.
b) 0.1544%
c) 1,544%
d) 15.44%