Answer: 0 = 23
Almost positiveee :))
Step-by-step explanation:
Answer:
<h3>
She reaches her maximum height after 0.25 seconds</h3>
Step-by-step explanation:
The question is not properly structured and the equation is also incorrect. Here is the correct question.
You and some friends went to a haunted house on Halloween. The mummy scared one friend so much that she jumped into the air! The equation h= -4t²+ 2t models her jump where h is her jumps height in feet t seconds after the mummy scares her. When did she reach her maximum.
Give the equation h= -4t²+ 2t that models my friend jump where h is her jumps height in feet t seconds, At maximum height, her velocity will be zero i.e
Vmax = 0m/s
Velocity is the rate of change in distance of a body i.e V = dh/dt
Given h= -4t²+ 2t
V = dh/dt = -8t+2
Since v = 0m/s
0 = -8t+2
-8t = -2
t = -2/-8
t = 0.25 secs
She reaches her maximum height after 0.25 seconds
Answer:
65
Step-by-step explanation:
So a number (let's call that x) plus -43 is 22. In an equation:
![x-43=22](https://tex.z-dn.net/?f=x-43%3D22)
To find the number, add 43 to both sides. The left cancels:
![x=65](https://tex.z-dn.net/?f=x%3D65)
And we're done!
The correct graph is the third one, with the solid dots at -3 and 3.
The bars around x stand for absolute value, which is defined as the distance a number is from 0. We want to know what number or numbers is/are 3 units away from 0 on a number line; the only choices are 3 or -3.
This means we must plot points at -3 and 3. They must be solid points, since these numbers are included in the solution (they are, in fact, the only ones of the solution).
Answer:
dvd cost 36 dollars
casette costs 10.5 dollars