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
Answer:
The answer is m = 150
Step-by-step explanation:
A - 700 = 250 + 3m
B - m = 150 miles
C - m = 150
3(150) + 250 = 700
↓ ↓ ↓ ↓ ↓
450 + 250 = 700
∨ ↓ ↓
700 = 700 ✓
The number would be 18.
Half of 18 = 9
Two thirds of 18 = 12
9 + 12 = 21
7.14 mile per hour is how fast she ran
Answer:
4
Step-by-step explanation:
Your answer would be 0 because you have to subtract 3 by 5 you get the answer 2. Then you subtract 4 by 2 and you 2. After that you multiply 2 by 2 getting the answer 4.
