For the triangle, you do 1/2*b*h
Where b is the base and h is the height
So, 1/2*9*7 which is 31.5
For the rectangle, we use the formula l*w
Where l is the length and w is the width
So we do 9*12 which is 108
The w e plus both values together to get the total area of the figure
108+31.5 is 139.5 ( which is roughly 139)
So, the answer to your question is option c
4. 6x + 5y = 4 a
6x-7y = -20 b
a-b
6x + 5y -6x+ 7y = 4+20
12y = 24
y = 2
Sub y in a
6x + 10 = 4
6x = 4-10
x = -6/6 = -1
5. 2x-3y=12 a
4x+ 3y = 24 b
b+a
4x+3y+2x-3y =36
6x=36
x=6
Sub x in a
12-3y = 12
-3y=12-12
y= 0/3 = 0
5(x + 10) + x
First, expand. / Your problem should look like: 5x + 50 + x
Second, gather like terms. / Your problem should look like: (5x + x) + 50
Third, simplify. / Your problem should look like: 6x + 50
Answer: 6x + 50 (C)
Answer:
See explanation for end behavior below
Domain = All Real numbers
Range = All Real numbers
Step-by-step explanation:
This is a typical power function of order 3, and since its coefficient is a negative one (-2), its end behavior is:
As x becomes more and more negative (moving towards the left of the horizontal axis, the values for y will become larger and larger (reaching very positive numbers on the y scale). As x becomes larger and larger (moving towards large values on the positive side of the horizontal axis, the related y values will become more and more negative.
The Domain of the function (the x-values for which the function is defined) consists of all Real numbers.
The same is true for the Range, since the y-values spread over all the real number line.
