Answer:
The time it takes for the stone to reach the ground is 3.94 s. This answer is correct.
Step-by-step explanation:
I believe there's a mistake in the equation shown, the acceleration (number that multiplies t²) should be negative, since the stone is falling, therefore I'll answer assuming it's -16 instead of 16, otherwise there would be no real solution to the equation.
In order to calculate how long it'll take for the stone to hit the ground we must make f(t) = 0 and find the time "t" that makes the equation valid, so we have:
f(t) = -16t² + 248 = 0
-16t² = -248
t² = -248/(-16) = 15.5
t = sqrt(15.5) = 3.94
On 5, the answer would be Area equals base plus base squared divided by two times by height I believe.
One answer is 6/10 ths; i hope this helps (;
Answer:
a
e
f
Step-by-step explanation:
Because each time yoi divide them by two it should always become an even number.
Answer:
Reflection Rule over line y = x: (x,y) >>>> (y,x)
Then if you determine the points coordinates of X, Y and Z, they will be
(1,0), (1,-1), and (0,-1) respectively, and by reflection across y=x we will find the new coordinates would be for X'm Y' and Z' as follows: (0,1), (-1,1) and (-1,0).
For the line segments that match the original and the reflected triangles to the reflection line y=x (the mirror), there are found to be equal in lengths and normal to the reflection line.
