Answer:
the third one :)
Step-by-step explanation:
I'm not saying it's absolutely correct, but if it were to be graphed, it is accurately close to (7,22)
Find the unit rate. He drove 168 miles in 4 hours.
168/4= 42
He drives 42 Mph.
Multiply that by 7.
42*7= 294
He drives 294 in 7 hours.
I hope this helps!
~kaikers
Answer:
Die= 6 possible outcomes
spinner= 4 possible outcomes
word= 4 possible outcomes
alphabet= 26 possible outcomes
cards= 15 possible outcomes
Zeroes:
We must solve

To do so, we define the auxiliary variable
. The equation becomes

The quadratic formula yields the solutions

Substituting back
gives

So, the zeroes are -6, -3, 3, 6.
Turning points:
Turning points are points where a function stops being increasing to become decreasing, or vice versa. Since functions are increasing when their first derivative is positive and decreasing when it's negative, turning points are points where the first derivative is zero.
We have

If we set the derivative to be zero, we have

So, the derivative is zero if x=0 or
