Answer:
2
Step-by-step explanation:
f(x)=2x^2+9x-5
When we are find how many times it intersects the x axis, we are finding the zero's. Set the equation equal to zero
0=2x^2+9x-5
Factor the equation
0 = (2x+1) (x-5)
2*1
1*-5 = -5
2*-5 +1*1 = -9
This checks for the first last and middle terms so we factored correctly
Then using the zero product property
2x+1 = 0 and x-5 =0
2x = -1 x=5
x = -1/2 and x=5
This function crosses the x axis 2 times
Answer:
$63
Step-by-step explanation:
30% of 90 is 27
90-27=63
Answer:
14
Step-by-step explanation:
First you do 325 - 13.50 , then you just divide 311.50 by 21.25, and because you cant have .6 of a friend its 14 :)
Answer:
a+5/5(a+2)
Step-by-step explanation:
sorry it took so long
4 1/3
Hope this helped :)
The explanation:
3 goes into 13 4 times. So 4 is your whole number.
You have 1 number left over so that is your numerator.
Your denominator does not change.
You can not simplify any more. <span />