Answer:
Step-by-step explanation:
➡️ 
➡️ 
➡️ 
➡️
A] <span>A remote-control airplane descends at a rate of 2 feet per second. After 3 seconds it is 67 feet above the ground.
the point slope equation will be given as follows:
y-y1=m(x-x1)
where:
slope,m=2 ft/sec
(x1,y1)=(3,67)
thus plugging in the values in the formula, we obtain the point slope equation as follow:
y-67=2(x-3)
Answer:
</span>y-67=2(x-3)
b]The height of the plane after 8 seconds will be:
x=8 sec
but:
y-67=2(x-3)
substituting x=8 we get:
y-67=2(8-3)
y-67=2(5)
y=10+67
y=77
thus the height after 8 seconds is 77 ft
Simplifies to:
1.690196x+396.139706=2
Let's solve your equation step-by-step.
1.690196x+396.139706=2
Step 1: Subtract 396.139706 from both sides.
1.690196x+396.139706-396.139706=2-396.139706
1.690196x=-394.139706
Step 2: Divide both sides by 1.690196.
1.690196x/1.690196 -394.139706/1.690196
x= -233.191716
Answer: x= -233.191716
Answer:
x = - 2
Step-by-step explanation:
The equation of the axis of symmetry is a vertical line with equation
x = c
where c is the value of the x- coordinate of the vertex
The x- coordinate of the vertex is
x = - 
Given
y = 2x² + 8x - 1
with a = 2 and b = 8 , then
x = - 
= - 2
x = - 2 is the equation of the axis of symmetry
Answer true
Step-by-step explanation:
true
