Answer:
Step-by-step explanation:
6a. y=-8(x-10)²
6b. y=(.15)(x+6)²
Answer:
30
Step-by-step explanation:
A player answers x correct questions and y incorrect questions for a total of 40 questions.
x + y = 40
The score is obtained by subtracting y incorrect answers from two times the x of correct answers. The player's score is 50.
2x - y = 50
Use substitution to solve. Rearrange the first equation so that it is equal to y. Then, substitute the y-value into the second equation.
x + y = 40
y = 40 - x
2x - y = 50
2x - (40 - x) = 50
2x - 40 + x = 50
3x - 40 = 50
3x = 90
x = 30
Since x was made to represent correct answers, the player had 30 correct answers.
<span>Tammy should use the machine to maintain or decrease her intensity. 183 is a very high heart rate and indicates that she is working at, or near, a maximal effort. She should not increase the intensity (speed or incline).</span>
Answer:
It's going to be the second option!
Step-by-step explanation:
If you simplify the original equation, it ends up being (xy^4)/6 which is the same as the second option if it were also simplified.
