Answer:
The answer is B
Step-by-step explanation:
If the apple is on the ground, then the height y is 0. To find t, just plug in 0 for y:
So the answer is 2.74 seconds.
Note that taking the square root of 7.5, mathematically, gives you both 2.74 and -2.74. But because we know that time did not go backwards, only the positive value for t was considered.
Answer:
XY=8
Step-by-step explanation:
In △XYZ, XY=XZ
It is isosceles triangle whose equal sides are XY=XZ
We are given,
XY=2a
YZ=3a+1
XZ=5a-12
XY=XZ
So, 2a=5a-12
Solve for a,
2a-5a=-12
-3a=-12
a=4
Now we put a=4 into XY=2a
So, XY=2(4)=8
Answer:
h = 8 units
Step-by-step explanation:
We see similar triangles
AD = 20 - 4 = 16 units
since AC = AD + DC = 16 + 4 = 20
so
16: h = h: 4 where corresponding sides are in proportion.
so ... cross multiply in this proportion and solve for h
64 = h^2
h = 8 units it looks like choice F.)
The answer would be c ASEM