Answer:
10/3
Step-by-step explanation:
60/18=10/3
The symbol between the x and 2y is missing. If it is a plus sign, then
Anything parallel to x+2y = 4 is going to be of the form x+2y = C where C is some fixed number. The left side stays identical and unchanged. To find the value of C, we plug in (x,y) = (0,0). So replace x with 0 and replace y with 0
x+2y = C
0+2*0 = C
0 + 0 = C
0 = C
C = 0
So the equation of the parallel line is x+2y = 0
Again this is all hinged on the assumption that there is a plus sign between x and 2y
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If the symbol between the x and 2y is a minus sign then
Anything parallel to x-2y = 4 is in the form x-2y = C where C is a constant
Plug in (x,y) = (0,0)
x-2y = C
0 - 2*0 = C
0 - 0 = C
0 = C
C = 0
So the parallel equation is x-2y = 0 only if the symbol between the x and 2y is a minus sign.
Hello from MrBillDoesMath!
Answer:
12 sqrt(2)
Discussion:
Since we have a right triangle,
cos(45) = side adjacent/ hypotenuse
= 12/ c
As cos(45) = sqrt(2)/2 the above equation becomes
sqrt(2)/2 = 12/c => multiple each side by "c"
c sqrt(2)/2 = 12/c * c =>
c sqrt(2)/2 = 12 => divide both sides by sqrt(2)/2
c = 12/ (sqrt(2)/2) =>
c = 12 *2 / sqrt(2) => as 2/sqrt(2) = sqrt(2)
c = 12 sqrt(2)
which is the first answer provided.
Thank you,
MrB
Answer:
f^-1 (x)=x/3
Step-by-step explanation:
y=3x
x=3y
y=x/3