Answer:
**3 × 8 − 3 ÷ 3 = 24 (correct)
**24 − 3 ÷ 3 = 21 (incorrect)
24-0=24
**24÷3=8
Answer:
- x = 31 - 2y - 3z
- y = (31 - x - 3z)/2
- z = (31 -x -2y)/3
Step-by-step explanation:
Subtract the terms not containing the variable of interest, then divide by the coefficient of the variable.
x = 31 -2y -3z . . . . . the coefficient of x is 1, so we're done
__
2y = 31 -x -3z
y = (31 -x -3z)/2
__
3z = 31 -x -2y
z = (31 -x -2y)/3
Answer:
the answer is
f(x)=1/√(x-3)
Step-by-step explanation:
we know that
case a) f(x)=3x
the domain is all real numbers------> interval (-∞,∞)
case b) f(x)=√x
the domain is all real numbers greater or equal than 0
the interval [0,∞)
case c) f(x)=3x+4
the domain is all real numbers------> interval (-∞,∞)
case d) f(x)=1/√(x-3)
the denominator can not be zero and can not be negative
so
(x-3) > 0-----> x > 3-----> the domain is all real numbers greater than 3
the interval is (3,∞)
the answer is
f(x)=1/√(x-3)
Answer:
y = 5 + 4x
Step-by-step explanation:
4x-y = -5
4x-y - 4x = -5
-y = -5 - 4x
you can not have a negative y so you multiply each side by negative 1 in order to get y positive
-1(-y) = -1(-5 - 4x)
y = 5 + 4x
Answer:
Step-by-step explanation: