504in2
LxWxH
7x6x12=504in2
Answer:
105963
Step-by-step explanation: delta math
Answer:
JK = 42 , KL = 78
Step-by-step explanation:
JK + KL = JL , substitute values
4x + 6 + 7x + 15 = 129 , that is
11x + 21 = 120 ( subtract 21 from both sides )
11x = 99 ( divide both sides by 11 )
x = 9
Then
JK = 4x + 6 = 4(9) + 6 = 36 + 6 = 42
KL = 7x + 15 = 7(9) + 15 = 63 + 15 = 78
Concept:
A <em>function f </em>from a set A to a set Y is a rule that assigns a unique element f(x) ∈ Y to each element x ∈A.
Points to remember:
1) There is no repetition in the domain of function.
2) Yo can use a 'vertical line test: A function f can have only one value f(x) for each x in its domain, so no vertical line can intersect the graph of a function more than once' to check that whether the given relation is a function.
Now, apply the above two points.
a) x²+y² = 9 , This is the equation of a circle so vertical line intersects the graph at two points, Given relation is not a function.
b) {(4, 2), (4, –2), (9, 3), (9, –3)}, repetition in Domain(4 occurs two times in domain and then 9 occurs two times) so Given relation is not a function.
c) x = 4 , this is a vertical line so repetition in Domain occurs (x=4 infinite values of y occcur) so Given relation is not a function.
d) 2x + y = 5 , equation of a line so according to vertical line test there is no repetition in domain so Given relation is a function.
For example: if the word problem were simply "4 divided by 2", the fraction would be a 4 with a line underneath and the 2 underneath that.
I hope I made this possible to understand... let me know if you were referring to something else!