Answer:
Step-by-step explanation:
y = 3x + 2
randomly select three x values and find the y's
3(-2) + 2 = -4
3(0) + 2 = 2
3(1) + 2 = 5
Answer:
41 miles - 1 gallon
205 miles - 5 gallons
Step-by-step explanation:
If it requires 9 gallons to drive a 369-mile track, you can divide 369 miles by 9 to receive the distance possible with one gallon (369 miles ÷ 9 = 41 miles)
Divide 205 miles by 41 miles and you receive the amount of times to multiply the gallons needed for 41 miles (205 miles ÷ 41 miles = 5 gallons).
Answer is C
2(x-5) -3(4x+4)
Multiply (x-5) by the 2
This makes it (2x-10) -3(4x+4)
Then do the same with the -3
This makes it 2x-10-12x-12
Simplify to make it -10x-22
Answer:
20, -7, -14, 10, -5, 8
20 + 10 + 8 + (-5) + (-7) + (-14) - organize all values (makes it easier to add)
38 + (-26) - add like terms
12
12/6 -divide sum by number of values
2 - answer
hopes this helps
Step-by-step explanation:
Answer:
Solution is not correct.
Step-by-step explanation:
Given question is incomplete; Here is the complete question.
Is the solution shown in the attachment correct ?
9x + 2 = 8x² + 6x
We have to solve this equation with the help of quadratic formula,
-8x² + 9x + 2 = 6x
-8x² + 9x - 6x + 2 = 0
-8x² + 3x + 2 = 0
Quadratic formula of a standard quadratic equation (ax² + bx + c = 0) is,
x = ![\frac{-b\pm\sqrt{b^{2}-4ac}}{2a}](https://tex.z-dn.net/?f=%5Cfrac%7B-b%5Cpm%5Csqrt%7Bb%5E%7B2%7D-4ac%7D%7D%7B2a%7D)
By comparing our equation with the standard quadratic equation,
a = -8
b = 3
c = 2
By substituting the values of a, b and c in the quadratic formula,
x = ![\frac{-3\pm\sqrt{(3)^{2}-4(-8)(2)}}{2(-8)}](https://tex.z-dn.net/?f=%5Cfrac%7B-3%5Cpm%5Csqrt%7B%283%29%5E%7B2%7D-4%28-8%29%282%29%7D%7D%7B2%28-8%29%7D)
x = ![\frac{-3\pm\sqrt{9+64} }{-16}](https://tex.z-dn.net/?f=%5Cfrac%7B-3%5Cpm%5Csqrt%7B9%2B64%7D%20%7D%7B-16%7D)
x = ![\frac{9\pm\sqrt{73}}{16}](https://tex.z-dn.net/?f=%5Cfrac%7B9%5Cpm%5Csqrt%7B73%7D%7D%7B16%7D)
Therefore, the given solution is not correct.