Answer:
Ima geuss B bec there is no image
Step-by-step explanation:
Here is the equation:
30 divided by 50 equals 0.6.
We do this because 30 divided by 50 meams you get the miles per minute.
But there are 60 minutes in an hour, so we multiply 0.6 times 60. This comes out to
Answer:
x = square root of 2
x = -5
Step-by-step explanation:
The main thing to do in all of these problems is to solve for x. In order to do that with four terms, you need to use a different method of factoring: factor by grouping.
Example 1:
f(x) = x^3 + 5x^2 - 2x - 10
We take the first two terms and figure out what we can factor out by seeing what what they have in common. Both terms have a x^2 or greater so take that out.
f(x) = [ x^2 (x + 5) ] + [ -2x - 10 ]
For the third and fourth terms, we see that they have a 2 in common because you can multiply both numbers by 2. HOWEVER, because you have a x + 5 as a multiple in the other factor, you need to make them match up, so you take out a -2 instead of a 2.
f(x) = [ x^2 (x + 5) ] + [ -2 (x + 5) ]
Then you put the terms you factored out into a parenthesis and the ones in parenthesis as another part of the equation.
f(x) = (x^2 - 2) + ( x + 5 )
0 = (x^2 - 2) + ( x + 5 )
0 = (x^2 - 2)
2 = x^2
square root of 2 = x
0 = ( x + 5 )
-5 = x
Answer:
negative 2 square root of 10 over 7
Step-by-step explanation:
