The simplified expression of 
is 
The expression is given as:
Expand the expression
Factor out 2
Combine the radicals
Expand the expression
Evaluate the roots
Expand
Hence, the simplified expression of is
Read more about simplified expressions at:
brainly.com/question/8008182
Answer:
0.71428571428
Step-by-step explanation:
Do it the old fashioned way, get out your calculator, or google it.
Answer:
1 to 30 seconds
Step-by-step explanation:
3 seconds increases your speed from 32 to 35 miles per hour
Hence 3 seconds = 3 miles per hour(35-32 miles)
1 second = 1 mile
The function for the increase per mile is therefore:
f(x)= 1x
Where x is number of seconds travelled on the highway
The domain of a function are the possible input values for x. Since the speed limit on the highway is 65 miles, the input values for x cannot be more than 30 seconds(current speed is 35 miles per hour, 65-35=30)
Answer: 2x^2-7x-15
Step-by-step explanation:
reorder the terms (x*2+3)*(x-5)
multiply the parentheses
(2x+3)*(x-5)
collect like terms (2x^2-10x+3x-15)
product= 2x^2-7x-15
