Answer:
0 ≤ u < 7 and 0 > u > - 7 and combining those two we get - 7 < u < 7.
Step-by-step explanation:
The given inequality is |u| - 2 < 5 ....... (1)
We have to solve this inequality.
Now, from the definition of f(x) = |x| we get, f(x) = x, when x ≥ 0 and
f(x) = -x when x < 0.
Hence, for u ≥ 0, the equation of inequality (1) becomes
u - 2 < 5
⇒ u < 7
Therefore, the solution is 0 ≤ u < 7 (Answer)
Again, for u < 0, the equation of inequality (1) becomes
- u - 2 < 5
⇒ u + 2 > - 5
⇒ u > - 7
Therefore, the solution becomes 0 > u > - 7 (Answer)
Answer:
The answer is simply 26,25/3 which gives that each book costed 8,75 dollars assuming of course that all books have the same price.
4 (5z+2y) (5z-2y) (Ignore this)
Answer:
b= y-intercept m=slope x=variable.
Step-by-step explanation:
x= y/m-b/m
m=y/x-b/x
b=y-mx
Answer:
-6/5 = w
Step-by-step explanation:
-1/2w-3/3=1/3w
Add 1/2 w to each side
-1/2w+ 1/2 w -3/3=1/3w+ 1/2 w
-3/3 = 1/3w+ 1/2 w
-3/3 is 1
-1 = 1/3w+ 1/2 w
Get a common denominator for the right side of 6
-1 = 1/3*2/2 w + 1/2 *3/3 w
-1 = 2/6w + 3/6 w
-1 = 5/6 w
Multiply by 6/5 to isolate w
-1 *6/5 = 5/6*6/5 w
-6/5 = w
