Answer:You round 1 1/8 to 1 and 9/10 to 1 (since you are estimating) and then you add 1+1+1+1, which is 4 because to find perimeter you add the lengths and the widths.
11) -7x⁶ + 5x⁴ - 3x² + 1; sextic
12) 3x² - 5z² + 7xz; cubic
14) -2x³y + 4x²y² + xy³ - y⁴; cubic
Answer:
x = 4
Step-by-step explanation:
Find 8 on the y-axis. Draw a horizontal line through y =8. Determine the x value for which the graph intersects this horizontal line y = 8. It is x = 4
The approximate solution of this system of equations is
Answer:
x = -1/4, y = 5/4.
Step-by-step explanation:
Because of the absolute value equation y = |x - 1| the value of y must be positive.
Solving x - 1 = 3x + 2 :
2x = -3
x = -3/2 and y = -5/2 so x= -3/2 is not a solution.
x - 1 xcan also be negative so we have the equation
- (x - 1) = 3x + 2
1 - x = 3x + 2
-1 = 4x
x = -1/4
y = 1 - - 1/4 = 5/4.
Answer:
(-0.2,1.2)substitute 3x+2 for y and set them equal to eachother then plug in x for y
Step-by-step explanation: