Answer:
C
Step-by-step explanation:
Because for a quadratic formula to be applicable..., x must be to the power of two(x^2)
Answer:
4
Step-by-step explanation:
The equation is 2(10+x)=28 where x is the unknown number we are trying to find. Use distrubutive property to combine like terms. 2 times 10 is 20 and 2 times x is 2x. Now we have 20+2x = 28. What you do to one side you must do to the other. 20 minus 20 is 0. 28 minus 20 is 8. Now our equation is 2x is 8. To find 1 x we divided in half. 8/2 is 4 therefore the missing variable is 4.
Answer:
$22.70
Step-by-step explanation:
First, find out how much 1 gallon costs. To do this, divide 15.89 by 7.
So, one gallon costs 2.27. Then multiply that by 10 to get 22.7.
Answer:
Luther Martin
Step-by-step explanation:
-2x-4 > 8
-2x > 12
x < -6
Wait, what? Why did I reverse the direction of the greater than sign to a less than sign? Well, when you divide a negative number in an inequality problem, you need to reverse the sign. I hope the actual solving is obvious. If it's not, just ask for clarification!
