Use elimination and subtitution method to solve the problem.
First, eliminate x and you'll find the value of y
x - 4y = 12
x - y = 0
--------------- - (substract)
-3y = 12
y = 12/-3
y = -4
Second, subtitute -4 as y and you'll find the value of x
x - y = 0
x- (-4) = 0
x + 4 = 0
x = -4
The solution
x,y = -4,-4
Answer:
I'm not sure if its correct but I say its the third scatterplot.
Answer:
Step-by-step explanation:
The standard form of a quadratic is:
To complete the square, the a (leading coefficient) must be 1 and there can only be terms with variables on one side.
The expression given:
follows these rules. Next, we divide the b (linear coefficient) by 2, then square it. Basically:
The b in the expression is -18.
This is the number that is added.
Answer:
<u>4 Objects can fit in the box</u>
Step-by-step explanation:
First, translate the box's 1-foot side into 12 inches. Now multiply all the box's sides together to get 12*3*4. This will equal 144 cubic inches. Now divide 144 by 36 to get 4.
In order to fully understand the problem, it is best to sketch it. Sketching the system, we will see that the system forms a triangle where the angle of elevation is 36 degrees. We are asked to find the hypotenuse. We can use a trigonometric function. It should be noted that one of the sides should also be given in order to calculate the hypotenuse. Trigonometric functions that can be used are:
sin(theta) = opposite / hypotenuse
cos(theta) = adjacent / hypotenuse
