Answer:
Yes lines are intersecting, point of intersection is <4,2,0>.
Step-by-step explanation:
Given parametric equations of line are:


If lines are intersecting then parametric coordinates of (1) are equal to (2)

Considering A and B to find values of t and s
From A
t=4s-3---(D)
Putting in (B)
2(4s-3)=1+s
8s-6=1+s
7s=7
s=1
Then
t=4-3
t=1
If lines are intersecting then these values of s and t must satisfy (C)
2-2(1)=1-1
0=0
This shows lines are intersecting.
At this value of t, (1) becomes

Putting s=1 in (2)

Point of intersection is <4,2,0>.
Answer:
$43.00
Step-by-step explanation:
final price = marked price + tax
= marked price + (tax rate) · (marked price)
= (marked pric) · (1 + tax rate)
= $40.00 · 1.075
= $43.00
Answer:
30 students
Step-by-step explanation:
Since 18 divided by 30 is .6, you convert .6 to 60% by moving the decimals two places to the right. Hope this helps.
Answer:
HGD: 117
FDG: 180
Step-by-step explanation:
Answer: Mike's arm span is 7.165 cm longer than the George's one.
Step-by-step explanation:
We have that the association between height and arm span is modeled by the equation
y = 4.5 + 0.977*x
where y is height and x is arm span.
Mike is 172 cm tall, so his arm span is:
172cm = 4.5 + 0.977*x
x = (172 - 4.5)/0.977 = 171.443 cm
and George is 165 cm tall, so his arm span is:
x = (165 - 4.5)/0.977 = 164.278 cm
Then the difference between their arm span is:
171.443cm - 164.278cm = 7.165 cm
So Mike's arm span is 7.165 cm longer than the George's one.