Answer:
Step-by-step explanation:
Remark
The two angles with x in them are = 90 degrees. That's because this is a right angle triangle.
Equation
x^2 + 10x + 115 = 90 Subtract 90 from both sides
Solution for x
x^2 + 10x + 115 - 90 = 0
x^2 + 10x + 25 = 0
Factor
(x + 5)(x + 5) = 0
x = - 5
Angle C
C = 10x + 115
C = 10*-5 + 115
C = -50 + 115
C = 65
<em>Angle A (which you don't need)</em>
x^2 = (-5)^2
x^2 = A = 25
Find BC
Cos(C) = adjacent / hypotenuse
Cos(65) =0.4226
AC = hypotenuse = 65
0.4226 = adjacent / 44 Multiply both sides by 44
44 * 0.4226 = adjacent
adjacent = 18.6 to three places.
Rates are the percentage and ratios are like this 3:1. so, in that 3:1 ratio, there is 3 to 1 cookies to cups of milk. So there is 75% cookies and 25% milk.
I hope i helped you, comment and ill answer
Answer:
180
Step-by-step explanation:
180 because it is obtuse
Answer:
-15/41
Step-by-step explanation:
-3x + 15 - 6x = 30 + 32x
~Combine like terms
-9x + 15 = 30 + 32x
~Subtract 15 to both sides
-9x = 15 + 32x
~Subtract 32x to both sides
-41x = 15
~Divide -41 to both sides
x = -15/41
Best of Luck!
Answer:
12.5 km per liter
Step-by-step explanation:
To get the kilometer per liter divide km by liters
100/8=12.5
