Applying properties of exponents in exercise, use the properties of exponents to simplify the expression.
(a) (45)(42)
(b) (72)3
(c) 2- 4
(d) 3^8/3^4

(a)

(b)

(c)

(d)

Step-by-step explanation:

We need to simplify the given expressions.

(a)

Consider the given expression is

Using the property of exponent, we get

(b)

Consider the given expression is

Using the property of exponent, we get

(c)

Consider the given expression is

Using the property of exponent, we get

(d)

Consider the given expression is

Using the property of exponent, we get

no not all of them.

step-by-step explanation:

some of them have a square base.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles