5x + 7 = 27
5x = 27 - 7
5x = 20
x = 20 ÷ 5
x = 4
2p - 15 = 35
2p = 35 + 15
2p = 50
p = 50/2
p = 25
Answer:
157.5 square feet
Step-by-step explanation:
If an inch is 3 feet, then
3.5 inches = 10.5 feet (3.5*3)
5 inches = 15 feet (5*3)
The area of a rectangle is length times width so...
10.5*15 = 157.5
Answer:
Only natural numbers (i.e., non-negative integers) can be the exponents of variables in a polynomial.
Step-by-step explanation:
The exponent of variables in a polynomial should be natural numbers (
, 
, 
, 
, 
.)
is equal to 
. In this expression, 
is the variable. Its exponent is 
, which isn't a natural number.
- On the other hand,
is equivalent to 
. The exponent of variable is , which is indeed a natural number.
isn't a polynomial because the exponent of variable isn't a natural number. On the other hand, is indeed a polynomial over the set of real numbers.
