Answer: Length = 11
Width = 9
Step-by-step explanation:
Let x represent the unknown length.
Let x - 2 represent the unknown width.
The perimeter is equal to 2 times x + (x -2)
Equation:
2 (x + (x - 2)) = 40
x + (x - 2) = 40/2
x + x - 2 = 20
2x - 2 = 20
2x -2 + 2 = 20 + 2
The length is: 2x = 22 -> x = 22/2 -> x = 11
The width is: x - 2 = 9
F(x) = -4x - 5
Subtitute the value of x to the equation:
f(-1) = -4 · (-1) - 5 = 4 - 5 = -1
Only C.) is logical, because in reality that is
(n+0)+(n+1)+(n+2)=36
And 0, 1, 2 are consecutive numbers.
Answer:
d. E=H
Step-by-step explanation:
The set E of values of x that satisfy x²-3x=-2 is {1, 2}, which matches set H.
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You can try them and see.
The nearest number to 15.04 it 15
