Answer:
(3, -1)
Step-by-step explanation:
The easiest way to solve this system of equations is by elimination:
3x + y = 8
2x - y = 7
Add the two equations together:
(3x + 2x) + (y - y) = (8 + 7)
5x = 15
x = 3
Substitute x back into the equation:
2x - y = 7
2(3) - y = 7
6 - y = 7
- y = 1
y = -1
The fourth option, (3, -1)
QUESTION 5
The side length of the first tra-pezoid and the second tra-pezoid are in the ratio
.
To find the corresponding ratio of their area, we square each term in the ratio.
The ratio of the area of the first figure, to the ratio of the area of the second is

QUESTION 6
The side length of the first figure and the second figure are in the ratio
.
To find the corresponding ratio of their area, we square each term in the ratio.
The ratio of the area of the first figure, to the ratio of the area of the second figure is

QUESTION 7
Let
represent the height of this triangle.

This implies that;


The area of the triangle is 
The base is 9 ft and the height is 3 ft.
We substitute these values to obtain;

to the nearest tenth.
QUESTION 8
The area of a parallelogram is 
Let h represent the height of this parallelogram.



The area of the parallelogram is 

to the nearest tenth.
Answer:
Option E is correct.
Step-by-step explanation:
We have been two similar triangles and we are asked to find out the value of x.
Since we know that corresponding sides of similar triangles are in same ratio. We will set the ratio of corresponding sides to find out our x.

Now we will substitute our given values in this ratio.

Now let us solve for x.

After taking the square root of both sides of the equation we will get,

Therefore, option E is the correct choice.
Answer:
4 is the gradient
Step-by-step explanation:
choose any two coordinate then apply the gradient equation
10-2= 8
3-1= 2
8/2= 4
4 is the gradient