9514 1404 393
Answer:
Sam is 24; his mom is 48.
Step-by-step explanation:
We can let x and y represent Sam's age and his mom's age, respectively.
y = 2x . . . . . Mom is twice Sam's age
y -12 = x + 12 . . . . Mom's age 12 years ago is the same as Sam's age 12 years from now
__
Substituting for y in the second equation, we have ...
2x -12 = x + 12
x = 24 . . . . . . . . . add 12-x to both sides
y = 2(24) = 48
Sam is 24; his mom is 48.
Answer:
See below ~
Step-by-step explanation:
- 5/4 = 1/25 ⇒ Rational
- √100 = 10 ⇒ Rational
- 7.3 ⇒ Rational
- 0.00247 ⇒ Rational
- √4/9 = 2/3 = 0.66666... ⇒ Rational
- √2/24 = 1/2√1/6 ⇒ Irrational
- 0.01.... ⇒ Rational
Answer:
The denominator is all real numbers except 0.
Step-by-step explanation:
In the function f(x) = 1/x, x appears in the denominator. A denominator cannot be zero since division by zero is undefined.
To find what values of x must be excluded from the domain, set the denominator equal to zero, and solve for x.
x = 0
The denominator is all real numbers except 0.
Answer:
3 and 4
Step-by-step explanation:
3^3 = 27
4^3 = 64
Answer:
It would be either -5/5 or -1
