Answer:
he is correct because 20% is the same thing as 1/5 amd 1/5 is the same thing as dividing by 5
Step-by-step explanation:
Answer:
x != -2, x^2 + 1, 1/5
Step-by-step explanation:
(a) It can be understood that nothing can divide 0
thus denominator cannot be 0 meaning x cannot be -2.
(-2 + 2) = 0
(b) y = sqrt(x-1)
inverse meaning we make x the subject
square both sides
y^2 = x - 1
y^2 + 1 = x
inverse = x^2 + 1
(c) composite function:
pass g(10) as domain of f
g(10) = 3, f(3) = 1/(5) = 1/5
Answer:
58
Step-by-step explanation:
1. let x be the unknown number
2. make an expression
x + 26/12 = 7/1
3. cross multiply
x +26 × 1 = x + 26
12 × 7 = 84
x + 26 = 84
4. move variables on one side and numbers on other side of the equal sign
x + 26 = 84
- 26 -26
x = 58
Answer:
or 
Step-by-step explanation:
We know that 
and 
are directly proportional. Therefore, using the given information, we can set up the following proportion:
Solving for , we get:
(Cross-Products Property)
(Simplify)
(Divide both sides of the equation by 
to get rid of 's coefficient)
or (Simplify)
Hope this helps!
