48 times 10to the 4th

480,000

Step-by-step explanation:

Either plug it in to a calculator or write it out. It is easiest to just plug it in to the calculator though.

Expanded notation: 480000

Step-by-step explanation:

10 to the 4th power is 10000

so 48 times 10000 equals 480000.

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.