Answer:
2 or 3 books
Step-by-step explanation:
9514 1404 393
Answer:
(b) (negative 2, StartFraction 5 over 3 EndFraction)
Step-by-step explanation:
The value of x is given, so you only need to substitute that into the first equation to find y.
y = 2/3(-2) +3 = -4/3 +9/3
y = 5/3
The solution is (x, y) = (-2, 5/3).
Answer:
y*z = 20
20(x + y) = )80 + 40) -x2
120 - 16 = 104
Step-by-step explanation:
I entered into a graphing website and this is what I got. :)
Answer:
step 1. Halve everything
x^2+ 4x - 0.5 = 0
step 2. Halve the coefficient of x so you can write down an equivalent for x² + 4 (that is, (x + 2)^2 - 4 )
(x + 2)² - 4.5 = 0
step 3. Isolate the squared term:
(x + 2)^2 = 4.5
step 4. Take square roots of both sides, recognising that a square root can be positive or negative:
x + 2 = ±√4.5
step 5. Make x explicitly
x = -2 ±√4.5
And there you are with two solutions.
Step-by-step explanation:
hope this helps if not let me know have a great day
