Answer:
12
Step-by-step explanation:
Using formula
distance = ![\sqrt{ (y2 - y1)^{2} + (x2- x1)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B%20%28y2%20-%20y1%29%5E%7B2%7D%20%20%2B%20%28x2-%20x1%29%5E2%7D)
Then input the values:
Distance = ![\sqrt{ (0 - 0)^{2} + (-8- 4)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B%20%280%20-%200%29%5E%7B2%7D%20%20%2B%20%28-8-%204%29%5E2%7D)
= ![\sqrt{0 + 144}](https://tex.z-dn.net/?f=%5Csqrt%7B0%20%2B%20144%7D)
= 12
Answer:
B) A racquetball club has a tournament where each member plays every other member and represents the scores in a matrix.
Step-by-step explanation:
A square matrix is where the number of rows is equal to the number of columns like order 2x2, 3x3, 4x4, 5x5 etc.
Given options are:-
A) A shoe salesperson wants to use an augmented matrix to represent the quantity of children’s shoes and adult shoes sold at his store for two days.
It is 2x2 times 2x1 = 2x1 matrix.
B) A racquetball club has a tournament where each member plays every other member and represents the scores in a matrix.
It is 6x1 times 1x6 = 6x6 matrix.
C) A student wants to write a coefficient matrix representing a linear system with two equations and three unknowns.
It is 2x3 times 3x1 = 2x1 matrix
D) A teacher wants to write an augmented matrix representing a linear system with four equations and four unknowns.
It is 4x4 times 4x1 = 4x1 matrix.
Hence option B is correct.
Answer:
Isolate the variables in all cases. Note the equal sign, what you do to one side, you do to the other.
a) 3x = 18
Isolate the variable, x. Divide 3 from both sides:
(3x)/3 = (18)/3
x = 18/3
x = 6
b) 2x = 9
Isolate the variable, x. Divide 2 from both sides:
(2x)/2 = (9)/2
x = 9/2
x = 4.5
c) (x/5) = 7
Isolate the variable, x. Multiply 5 to both sides:
(x/5)(5) = (7)(5)
x = 7 * 5
x = 35
d) x/2 = 6.5
Isolate the variable, x. Multiply 2 to both sides:
(x/2)(2) = (6.5)(2)
x = 6.5 * 2
x = 13
~
Answer: 12
Step-by-step explanation:
There are 108 inches in 9 feet and then you divide 108 by 9