Answer:
Nadia is correct
Step-by-step explanation:
Rate of change = y/x
Using a point on the graph, say, (3, 8),
Rate of change = 8/3.
Therefore, Nadia's answer is correct while that of Nolan is wrong.
Answer:
the line containing them lies in the plane.
Step-by-step explanation:
If two planes intersect, then their intersection is a line.
Answer:
$320
Step-by-step explanation:
To find the original price, divide 240 by 0.75
240/0.75
= 320
So, the original price is $320
8.6 is equivalent to 8 3/5
Step-by-step explanation:
solution,
given
DF = 42
DE = 7x+1
EF = 4x-3
DE = ?
here,
or, DF = DE +EF
or, 42 = 7x+1+4x-3
or, 42 = 11x-2
or, 42+2 = 11x
or, 44/11 = x
or, 4 = x
then,
replacing value of x in DE
DE = 7x+1
= 7*4+1
= 28+1
= 29