Answer:
Step-by-step explanation:
The one-to-one functions g and h are defined as follows.
g={(-7,-6), (-5,4), (4,-7)(7,6)}
h(x)= 3x-14
Find the following.
g-1(4)=
"g-1(4)" just says "Find the pair of coordinates that has 4 for its
y-coordinate, and the answer is its x-coordinate". So we look through those
and find (-5,4) is the only one of those up there that has a 4 for it's y-
coordinate, and so its x-coordinate is -5 and we write:
g-1(4)=-5
Answer:opposite
Step-by-step explanation:
Answer:
Explicit:
a(n) = (5^n)/5
Recursive:
a(n) = 5 × a(n-1)
Step-by-step explanation:
1, 5, 25, 125...
1, 1×5 = 5, 5×5 = 25, 25×5 = 125..
It is a Geometric sequence with:
First term: 1
Common ratio: 5
Nth term of a Geometric sequence is:
a(n) = a(1) × r^(n-1),
Where a(1) is the first term and r is the common ratio.
Therefore,
a(n) = 1 × 5^(n-1)
a(n) = 5^n × 5^-1
a(n) = (5^n)/5
Recursive:
a(n) = 5 × a(n-1)
Answer: the price of each CD before tax is $14.9
Step-by-step explanation:
Let x represent the price of each CD before tax.
Abdul bought 3 CDs that were each the same price. It means that the total cost of the 3 CDs before tax is $3x.
Including sales tax, he paid a total of $47.40. Of that total, $2.70 was tax. It means that
3x + 2.7 = 47.4
3x = 47.4 - 2.7
3x = 44.7
x = 44.7/3
x = 14.9
the price of each CD before tax is $14.9
