Answer:
B c and d
Step-by-step explanation:
Answer:
Result at time x = 4 seconds the soccer ball hit the ground.
Step-by-step explanation:
At the moment just before the ball is kicked, it is on the ground and so the height f(x) is zero meters. After the kick, the ball goes through the air and it's path can be described by a (mountain) parabola.
So lets see after how many second (x) the height = 0 once again.
f(x) = 8x-2x^2
f(x) = 0
8x - 2x^2 = 0
Try to write the formula in two terms
-2x * (x - 4) = 0
When a product of two or more terms equals zero, then at least one of the terms must be zero.
Now solve each term = 0 separately, meaning, solve as many equations as there are terms in the product.
Any solution of term = 0 solves product = 0.
Solve the first term:
-2x = 0
Multiply left an right from the = singn with the factor -1 gives this outcome:
2x = 0
x = 0
Solve the second term:
x-4 = 0
x = 4
Result at time x = 4 seconds the soccer ball hit the ground.
x = 4
x = 0
Three thousand one hundred ninty-two
Answer:
Red
Step-by-step explanation:
Blue: $127.75 ÷ 7 = $18.25
Red: $73.52 ÷ 4 = $18.38
<u>Blue's cost per chair:</u> $18.25
<u>Red's cost per chair:</u> $18.38
Answer:
See below:
Step-by-step explanation:
So, we start off with the equation: 
If we simplify, we can use the distrubutive property to simplify the equation:
Here is how it goes:
So upon simplification of that, we get here: 
Hm, somethings off, do you see that they are the same thing...
So, that means that there would be infinately many solutions.
You can plugin any number and you would get the same result!
