Answer:
45 mph
Step-by-step explanation:
the average speed is found by adding the speed together and then divdiing the sum by however many numbers u added together.
So then the average speed would be 50 mph+40mph/2 which equals 45 mph.
72ft
you do 8 times 2 is 16
34-16 is 18 then divide by 2 is 9
9 times 8 is 72
~JZ
Answer:
Step-by-step explanation:
hello :
sin(x+y)= sinxcosy+cosxsiny...(*)
sin(x-y)= sinxcosy-cosxsiny....(**)
add (*) and(**) : sin(x+y)+sin(x-y)= 2sinxcosy
1/2(sin(x+y)+sin(x-y)) = sinxcosy......true
Since both y squared and 6y have a common factor of y, can put that to the side and divide both the y squared and 6y to get the second step of the work shown above. Separate both the y on the outside of the parentheses and the numbers within the parentheses and set them both equal to 0 as shown in step 3 of the work shown above. Finally solve for y as you would normally. Those two number in step 4 should be your final answer.
Answer:
its 3
Step-by-step explanation:
Simplifying
8 = 3x + -1
Reorder the terms:
8 = -1 + 3x
Solving
8 = -1 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation.
8 + -3x = -1 + 3x + -3x
Combine like terms: 3x + -3x = 0
8 + -3x = -1 + 0
8 + -3x = -1
Add '-8' to each side of the equation.
8 + -8 + -3x = -1 + -8
Combine like terms: 8 + -8 = 0
0 + -3x = -1 + -8
-3x = -1 + -8
Combine like terms: -1 + -8 = -9
-3x = -9
Divide each side by '-3'.
x = 3
Simplifying
x = 3 this took forever to type hope it helped