The least squares method will minimize the sum of squares error when describing the equation that best fits the ordered pairs.
Answer:
-10,-6,-4,3,7
Step-by-step explanation:
This is because -10 is less than -6,-6 is less than -4,-4 is less than 3 and followed by 7 and vice versa for descending other
450= 175+25x
(let x stand for how many hours of lessons dakota can afford)
Step 1: Simplify both sides of the equation.
450=25x+175
Step 2: Flip the equation.
25x+175=450
Step 3: Subtract 175 from both sides.
25x+175−175=450−175
25x=275
Step 4: Divide both sides by 25.
25x25=27525x
x=11
Dakota can afford 11 hours of lessons.
Answer:
2
Step-by-step explanation:
In general, .
So we have here that:
We went by itself first.
Subtract 441 on both sides:
Multiply both sides by -1:
Take the square root of boht sides:
So both 2 and -2 would satisfy the equation.
Only one of these is a whole number.
The whole numbers consist of the elements that you can count with and 0.
The whole number set is {0,1,2,3,4,5,6,7,...}
So 2 is the answer.
Check:
Replace x with 2:
437=(21+2)(21-2)
437=(23)(19)
437=437 is a true equation so 2 is definitely a solution.