Answer:
The solutions are {-5, 1}
Step-by-step explanation:
Next time, please use the symbol " ^ " to denote exponentiation:
x^2+4x-5=0
Start by identifying the coefficient of the x term (it is 4 here). Divide this by 2, resulting in 2. Square this result (square 2), obtaining 4.
Now add this 4 after the 4x term, and then subtract this 4:
x^2+4x +4 - 4 -5=0
Rewrite x^2+4x + 4 as (x + 2)²:
(x + 2)² - 9 = 0
Add 9 to both sides, to isolate (x + 2):
(x + 2)² = 9
Take the square root of both sides:
x + 2 = ±3
Solve for x: x = -2 + 3, or 1
x = -2 - 3, or -5
The solutions are {-5, 1}
Answer:
w = 4
Step-by-step explanation:
You have to switch the negative 7 into a positive, and then add it to the negative 3
-3 = w - 7
+7 +7
4 = w
Answer:
when x = 3, x would equal 3 since x can be substituted as 3, aka chancge any xes into 3 if they give you yhat info
Step-by-step explanation:
To convert a mixed number into an improper fraction<span>, multiply the whole number by the denominator and add it to the numerator. This becomes the numerator of the </span><span>improper fraction, so 3 x 2 = 6 + 5 = 11 so, your answer should be 11/2</span>
Answer:
Step-by-step explanation:
The computation of the Julie drink altogether is as follows:
We simply added the total liter of water that she took before going jogging and after her jog
