(4x - 3)(x + 5)
= 4x(x + 5) - 3(x + 5)
= 4x^2 + 20x - 3x - 15
= 4x^2 + 17x - 15 Answer
Answer:
a) {(3,3),(3,4),(4,5),(4,6)}
Step-by-step explanation:
Given
(a) to (d)
Required
Which is not a function
A relation is represented as:
For the relation t be a relation, then:
where 
This means that none of the x values must be related.
The first relation has 3 repeated as its value of . Hence, (a) is a relation
Walter will have walked 1.05 miles.
To find the missing piece on the right side, we need to set up and solve the following proportion.
0.2 / 0.5 = 0.3 / x
x = 0.75
Now, that we know the 2 pieces on the right side, just add them together.
0.3 + 0.75 = 1.05 miles
There are 60 Country CDs and 136 Rock CDs.
Rock and country CDs = 196
Country CD = x
Rock CD = x + 76
Country CD + Rock CD = 196
x + (x + 76) = 196
2x = 196 - 76
2x = 120
2x / 2 = 120 / 2
x = 60 * number of Country CD
Rock CD = x + 76 = 60 + 76 = 136
To check:
Country + Rock = 196
60 + 136 = 196
196 = 196
