Answer:
33
Step-by-step explanation:
since the whole thing is a right angle=90 you just subtract it from 57 and that's 33
Let oil change be x
91 / 7 = x / 11
(91 * 11) / 7 = x
13 * 11 = x
<span>143 = x Ans</span>
Answer:
Option (3)
Step-by-step explanation:
By applying cosine rule in the triangle ABC,
BC² = AC² + AB² - 2(AC)(AB)cosA
5² = 3² + 7²- 2(3)(7)cosA
25 = 9 + 49 - 42cos(A)
25 = 58 - 42cos(A)
cos(A) = 
A = 
A = 38.21°
A ≈ 38°
Option (3) will be the correct option.
Answer:

Step-by-step explanation:
If we have a pizza that has
slices and we want to split it between 4 friends, then each friend will get
slices.
Now, Harris is one of those friends so he receives
slices, but he eats one less than he receives. Therefore, we subtract one from this expression to get our final answer of
.
Hope this helped!