Answer:
= (y - 4x) (y - 7)
Step-by-step explanation:
y^2-4xy-7y+28x
--
factor out y from y^2 - 4x : y(y - 4x)
factor out 7 from 28x - 7y : 7(4x - y)
= y (y - 4x) + 7(4x - y)
7 (4x - y) + 7(y - 4x)
= y (y - 4x) - 7(y - 4x)
= (y - 4x) (y - 7)
Solution :
A permutation in the field of mathematics may be defined as the arrangement of its members into a linear order or a sequence. However, if a set is already being ordered, then it is the rearrangement of the elements of the set.
In the context, the next largest permutation set is :
a). (1,2,3,4,5,6,7)
b). The given permutation is the last one in the lexicographic order.
c). (1,7,6,4,2,5,3)
d). (4,1,2,3,5,6,7)
e). (5,6,7,4,3,2,1)
Answer:
yes i think so it looks quite accurate
Cross multiply
10/a = 15/30
10/a(a)(30) = 15/30(30)(a)
Simplify
1/a(a) = 1
15/30(30) = 15
10(30) = 15(a)
Simplify. Combine terms
300 = 15a
Isolate the a. Divide 15 from both sides
300/15 = 15a/15
a = 300/15
a = 20
A) a = 20 is your answer
hope this helps