Answer:
The x-coordinate of A is:
a = 6.1
Step-by-step explanation:
For point A:
x-coordinate = a
x-coordinate + y-coordinate = 14
y-coordinate = 14 - x-coordinate
y-coordinate = 14 - a
So point A can be written as (a, 14-a)
Let (a,14) be (x₁,y₁)
Point P can be written as (3a, a²+13a-11)
Let P be (x₂,y₂)
Slope of a line passing through 2 point is given as:
where m=7
Substitute all values
As A has only positive coordinates
a = 6.1
Answer:
12
Step-by-step explanation:
First, find out how wide his shelf is in inches. 2.25*12=27. So his shelf is 27 inches wide. Then divide that by 2.25 to find the number of encyclopedias will fit.
Answer:
For a solution to occur y=y so we can say. 3x=2x+2 subtract 2x from each side. x=2, since y=3x. y=3(2).=
Step-by-step explanation:
3 x 3 x 3 = 27
Each of the 3 layers has 3 x 3 cubes
All minute cubes on bottom layer touch bottom of box
All minuscule cubes (except for middle cubes) of middle and top layers, touch sides of box
So 2 cubes don't physically contact bottom or side of box
Answer: 25