Answer:
x=-7 x=4
Step-by-step explanation:
(x −2)(x + 5) = 18
Foil
x^2 +5x-2x-10 = 18
Combine like terms
x^2 +3x -10 =18
Subtract 18 from each side
x^2 +3x -28 = 0
Factor
What two numbers multiply to -28 and add to 3: 7 and -4
(x+7) (x-4) =0
Using the zero product property
x+7=0 x-4 =0
x=-7 x=4
180x28 is the sum of the interior angles in a <span>30- gon</span>
Answer:
Step-by-step explanation:
From the graph attached,
1). Amount drivers are paid per mile =
=
= $0.40 per mile
This amount per mile is same at every point of the graph.
Therefore, the amount drivers are paid per mile is the same for each distance, so the relationship is proportional.
2). Let the relation between the distance traveled (x) and amount paid (y) is,
y = kx
k =
k =
k = $0.40
14 science fiction, 2 romance, 4 biography, 10 adventure...total of 30 books
P(biography) = biographies / total books = 4/30 which reduces to 2/15 <=
Answer:
-1.75 or -1 3/4
Step-by-step explanation:
each line is 1/4 since you need 4 lines to get to the next number.
the number falls on the third line out of 4 lines