Answer:
c=13/14
Step-by-step explanation:
150/11=13 R7
14 because she still needs $7
or 13 because she can work 2hrs walking dogs
-7(8x - 3) + x =
-56x + 21 + x =
-55x + 21
Answer: <
Explantion:
, because you factor the 5 into 10 and 4 so
The second one you want will be integers.
Slope = (y2 - y1)/(x2 - x1)
Slope = (7-5)/(9-4)
Slope = 2/5
Answer:
x = 5 and x = -19
Step-by-step explanation:
You're on the right track. It's the "discriminant" that tells you what you want to know here. Before starting, arrange the terms of your quadratic in descending orders of x: 5x^2 + 14x - 19 = 0 (Note that I assumed you meant 14x instead of just 14).
Then the coefficients of this quadratic are a = 5, b = 14 and c = -19.
You are referring to the "quadratic formula." It states this:
-b ± √(b²-4ac)
x = -----------------------
2a
So, we insert the a, b and c values as indicated above:
-14 ± √( 14² - 4[5][-19] ) -14 ± √(196 - 4[5][-19] ) -14 ± √576
x = ----------------------------------- = ---------------------------------- = ----------------------
2(10) 20 20
This comes out to:
x = (-14 + 24) / 2 and x = (-14 - 24) / 2
or:
x = 5 and x = -19
