Answer:
12m
Step-by-step explanation
If the height of the ball after x seconds be modelled by the equation
h(x)=−(x−2)² +16
The height of the ball at the time it is thrown will be the height at the initial time. At that point that it is initially thrown the time is 0seconds i.e x = 0
To get the height at t x = 0seconds, we will substitute x = 0 into the modeled function to have;
h(0) = -(-0-2)²+16.
h(0) = -(-2)²+16
h(0) = -4+16
h(0) = 12
The height of the ball at the time the ball is thrown is 12m
{5x-7y=-2
<u>{-5x-10y=-15 </u>(+)
<em>5x-5x-7y-10y=-17</em>
<em> </em>-17y=-17 /:(-17)
y=1
<em /><em>5x-7 *1=-2</em>
<em />5x-7=-2 /+7
5x=5 /:5
x=1
<u>Solution:</u> (1; 1)
It would be 1/4 because thoose peoples ride the roller coster again.
The complementary angle of 60° is 30°
cos(30°) = (√3)/2 ==> cos30°=0.86 (or b.)
Step-by-step explanation:
x = 0 (I don't know what the result of this operation is and I need it to know the x but that's what I can do)