Answer:
7 bag of mulch cover will be needed for Hailey's garden.
Step-by-step explanation:
6*1 3/4 = 10.5 but it some left over for 7 will be needed .
Technically no. It extends forever in the X and Y axis, but does not have a Z axis.
If the temperature was 3 degrees Fahrenheit at Midnight, and it dropped 7 degrees during the next hour, then the temperature at 1 A.M. would be -4 degrees Fahrenheit. This is true because 3 - 7 = -4.
So, the answer to this question is that the temperature was -4 degrees Fahrenheit at 1 A.M.
The point-slope form:
![y-y_1=m(x-x_1)](https://tex.z-dn.net/?f=y-y_1%3Dm%28x-x_1%29)
m - slope
x₁, y₁ - the coordinates of a point
It passes through the points (1,-2) and (2,2).
![(1,-2) \\ x_1=1 \\ y_1=-2 \\ \\ (2,2) \\ x_2=2 \\ y_2=2 \\ \\ m=\frac{y_2-y_1}{x_2-x_1}=\frac{2-(-2)}{2-1}=\frac{2+2}{1}=4](https://tex.z-dn.net/?f=%281%2C-2%29%20%5C%5C%0Ax_1%3D1%20%5C%5C%20y_1%3D-2%20%5C%5C%20%5C%5C%0A%282%2C2%29%20%5C%5C%0Ax_2%3D2%20%5C%5C%20y_2%3D2%20%5C%5C%20%5C%5C%0Am%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%3D%5Cfrac%7B2-%28-2%29%7D%7B2-1%7D%3D%5Cfrac%7B2%2B2%7D%7B1%7D%3D4)
x = 3 + y Eqn(1)
y = -2x + 9 Eqn(2)
Let us solve the system of equations with the substitution method
x - 3 = y (Subtracting 3 from both sides of the Eqn(1))
Replacing y = x - 3 in Eqn (2), we have:
x - 3 = -2x + 9
x = -2x + 9 + 3 (Adding 3 to both sides of the equation)
x + 2x = 9 + 3 (Adding 2x to both sides of the equation)
3x = 12 ( Adding like terms)
x = 12/3 (Dividing by 3 on both sides of the equation)
x = 4
Replacing x=4 in Eqn(1), we have:
4 = 3 + y
4 - 3 = y (Subtracting 3 from both sides of the equation)
y=1
The answers are:
x= 4 and y=1