Answer:
Yes, it is just next time if it is wrong edit your answer or double check ur work before u post it *add answer*
i have done it many times ^_^
Using a graphic tool.
<span>see attached graphic</span>
<span>
the solutions are
x1=-2
x2=0.811
</span>check
for x=-2
x^4+3x^3+3x2-3x-4
(-2) ^4+3(-2) ^3+3(-2) ^2-4=16+(-24)+12-4=0 ok
For x=0.811
(0.811) ^4+3(0.811) ^3+3(0.811) ^2-4=0.4326+(1.6002)+1.9731-4=0 ok
Answer: I'm not sure about the first question, I've never been good at equations. The second one is asking for 15x30 = 450. She will make 450 dollars for 15 hours of work.
Step-by-step explanation:
Step-by-step explanation:
Let the number of girls = x
Therefore, no. of boys =

Thus, no of boys in the class is 35.
Use all the top to multiply by it
Then divide by the buttom.