Answer:
35.7
Step-by-step explanation:
First, you would calculate how many gallons of gasoline the car gets. To do this, divide your total mileage of 500 miles by the mpg (30). Now you know how many gallons of gasoline will be used by the car. After calculating, you get 16.67. Multiply this by how much it costs per gallon of gasoline, and you get an answer of $35.7.
1 hour = 17 miles
1 1/2 hours = 25 1/2 miles
2 hours = 34 miles
2 1/2 hours = 42 1/2 miles
Assuming this is a triangle, all three angles should add to 180º
91 + 40 + x = 180
131 + x = 180
Subtract 131 from both sides
x = 49
The measure of angle 1 is 49º
Answer:
D
Steps:
Multiply the first term by each term in the second set of parentheses;
3x^2 * 6x = 18x^3
3x^2 * -8 = -24x^2
Now multiply the second term (and third term) by each term in the second set of parentheses;
5x * 6x = 30x^2
5x * -8 = -40x
9 * 6x = 54x
9 * -8 = -72
Then combine all the results;
18x^3 - 24x^2 + 30x^2 - 40x + 54x - 72
And combine like terms;
18x^3 + 6x^2 + 14x - 72
