Answer:
second question i think the answer is c .i don't know about first one
Step-by-step explanation:
Answer:
a) The vertex of the graph is 
, b) 
, c) The equation of the parabola is 
.
Step-by-step explanation:
a) The tennis ball experiments a free fall, that is, an uniform accelerated motion due to gravity and in which effects from Earth's rotation and air viscocity are negligible. The height of the ball in time is represented by a second order polynomial. Hence, the vertex of the parabola is the initial point highlighted in graph.
The vertex of the graph is .
b) If we know that , 
and 
, then the value of 
is:
c) The equation of the parabola is .
Step-by-step explanation:
Y=90° as its a right angled triangle
Answer:
$4.86
Step-by-step explanation:
The package of cheese that cost $2.97 has 11 slices. To know how much each slice costs, we need to divide $2.97 by 11.
That is $2.97/11 = $0.27 per slice
Now we need to calculate how much would cost a package of 18 slices with the same price per slice.
As we now know that each slice costs $0.27, we just need to multiply 18 by $0.27 to know the total price.
That is 18*$0.27 = $4.86
A package with 18 slices would cost $4.86.
Answer:
C. It is an angle that has its vertex at the center of a circle.
Step-by-step explanation:
That's the definition.
A. is wrong. An angle with a measure greater than 180° is an obtuse angle,
B. is wrong. An angle that has its vertex on the circle is an inscribed angle.
D. is wrong. Part of the circumference of a circle is an arc.
