The ball will hit the ground at 2 seconds.
Step-by-step explanation:
Given that,
The path of the ball = h(x)=−2x2+1x+6
Here,
x is the time while h is the height of ball.
When the ball will hit the ground, the height will become zero. Therefore,
h(x)=−2x2+1x+6
0 =−2x2+1x+6
or
2x2 -1x - 6 = 0
This is a quadratic equation, hence by applying quadratic equation formula:
here,
a = 2
b = -1
c = -6
Putting these values in formula, we get
x = 2, -3/2
As the time cannot be negative. Therefore, the ball will hit the ground at 2 seconds.
Answer:
D - ambiguous
Step-by-step explanation:
A common protagonists within the genre of psychological suspense could be a character that is very smart. A character like this allows the viewer to consider the possibility that their own rational fears going to be the challenge - as the character who is watching you go through frightening events is also rational. Because of this, such protagonists, proves to be very effective device within the genre of psychological suspense. Therefore, an ambiguous person is going to be more intelligent.
Answer:
28/32 and 26/32
Step-by-step explanation:
A common denominator of 8 and 16 is 32.
7/8 = (7 * 4)/(8 * 4) = 28/32
13/16 = (13 * 2)/(16 * 2) = 26/32
Two equivalent fractions with a common denominator are 28/32 and 26/32.
There are about four other names for a square.
