(2x +y)(5x-y+3)
10x^2 - 2xy + 6x + 5xy - y^2 + 3y
10x^2 -2xy+5xy + 6x - y^2 + 3y
10x^2 +3xy + 6x -y^2 +3y
Looking at the answer boxes the sign looks wrong to me from y^2 ( a negative times a positive is a negative) I may be wrong.
Anyone else?
Cube section 1's Volume= 9*8*3 = 216 cubic inches
Cube section 2's Volume= 7*3*15 = 315 cubic inces
216 + 315= 531 cubic inches
Hope this helps Marie
Good Luck!
A that a that is your answer iu hoped it helped you and its right
Answer:
x = 0,6
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
Answer:
Jill did not change the symbol of inequality from minor (< ) to major (>) in the Step 4
Step-by-step explanation:
we have
![-\frac{x}{4} < \frac{x+2}{3}](https://tex.z-dn.net/?f=-%5Cfrac%7Bx%7D%7B4%7D%20%20%3C%20%5Cfrac%7Bx%2B2%7D%7B3%7D)
step 1
Multiply by 12 both sides
![(12)(-\frac{x}{4}) < (12)(\frac{x+2}{3})](https://tex.z-dn.net/?f=%2812%29%28-%5Cfrac%7Bx%7D%7B4%7D%29%20%20%3C%20%2812%29%28%5Cfrac%7Bx%2B2%7D%7B3%7D%29)
![-3x < 4(x+2)](https://tex.z-dn.net/?f=-3x%20%3C%204%28x%2B2%29)
![-3x < 4x+8](https://tex.z-dn.net/?f=-3x%20%3C%204x%2B8)
step 2
Group terms
![-3x-4x < 8](https://tex.z-dn.net/?f=-3x-4x%20%3C%208)
step 3
Combine like terms
![-7x < 8](https://tex.z-dn.net/?f=-7x%20%3C%208)
step 4
Divide by -7 both sides
Remember that when you multiply an inequality by -1 the < symbol changes to the > symbol
so
Jill did not change the symbol of inequality from minor (< ) to major (>) in the Step 4