Answer:
216 miles
Step-by-step explanation:
Let's set up a proportion using the following setup.
miles/gallons=miles/gallons
We know the car can travel 156 miles on 13 gallons. We don't know how many miles the car can travel on 18 gallons, so we can say the car can travel x miles on 18 gallons.
156 miles/13 gallons=x miles/18 gallons
156/13=x/18
We want to find out what x is. Therefore, we have to get x by itself. x is being divided by 18. The inverse of division is multiplication, so we can multiply both sides by 18.
18*156/13=x/18*18
18*156/13=x
18*12=x
216=x
x=216 miles
The car can travel 216 miles on 18 gallons of gas.
(x – 5)²<span> + 3(x – 5) + 9 = 0
x</span>² - 10x + 25 + 3x - 15 + 9 = 0
x² - 7x - 16 = 0
or
or
(Answer B)
Answer:
Should be 4.
Step-by-step explanation: Here's why.
First off, use the given formula for determining the slope: m= . You will need this formula.
Second, label all your points with the right variable. For example,
0 = x1 / 0 = y1 / 2 = x2 / 8 = y2
Once completed, you've set up your problem and now you're ready to solve. Replace the formula with all the numbers. Make sure they're in the right place.
Here's how it should look:
m =
From here, you will subtract the numerator and the denominator.
m = =
Be sure to simplify it. When simplified, it goes down to 4.
Good luck! I have attached my work for you so that it's easier to understand.
Answer:
the first equation is (7,-5.9)
the second equation is (3,10.5)
the third equation is (6,9.4)
the fourth equation is (-5,-4.5)