Which of the quadratic functions has the narrowest graph? y=-x y=1/4x y=4x^2 y=1/9x
1 answer:
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A)
Earlier, The length of the angelfish = inches
Now, the length of angelfish = inches
We have to determine the grown length of angelfish
= -
=
LCM of '2' and '3' is '6',
=
= inch
Therefore, the angelfish has grown by inch.
B)
We have to determine the increased length of angelfish in feet.
Since foot
So,
= 0.069 foot.
Answer:
(x, y) = (40, 30)
Step-by-step explanation:
A graphing calculator can show you the solution to this system of equations is (x, y) = (40, 30). That is the point of intersection where the two lines cross.
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An algebraic solution can be found by using the substitution method. An expression for y can be found using the second equation:
y = 110 -2x . . . . . . subtract 2x from both sides
Using this in the first equation gives ...
3x -4(110 -2x) = 0 . . . . substitute for y
11x = 440 . . . . . . . . . simplify, add 440
x = 40 . . . . . . . . . . divide by 11
y = 110 -2(40) = 30
The solution is (x, y) = (40, 30).
