Solving by completing the square method we get
Step-by-step explanation:
We need to solve by completing the square method.
We are given:
The Completing square method is: (a+b)^2 = a^2+2ab+b^2
Solving:
Keywords: completing the square method.
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Answer:
-13
Plug in 10 as x into the function:
f(x) = -2x + 7
f(10) = -2(10) + 7
f(10) = -20 + 7
f(10) = -13
So, f(10) = -13
They will deliver on the same day again 21 days later
Multiples of 3 and 7
3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
7: 7, 14, 21, 28, 35, 42, 49
Answer:(-3,6)(-31,-3)(-3,3)