Answer:
Step-by-step explanation:
For the quadratic equation 
the discriminant is defined as
and the quadratic formula for the roots gives us two roots:
and
For the equation 
use quadratic formula to find roots:
So,
Well if you add all the numbers together, the total is 14. So 4/14 chance of pulling out a red marble.
Answer:
300 text messages sent or received
Step-by-step explanation:
.16 x 300 = 48 which is the same amount as the unlimited texting
Answer: 3b+3s
Step-by-step explanation:
The first part of this question is:
<em>Rachel needs to write 3 book reports with b pages and 3 science reports with s pages during the school year. How do you write an algebraic expression for the total number of pages Rachel will need to write?</em>
This means Rachel has to write 3b+3s pages
Now, if Yassi has to write 3(b + s) pages, we can use the distributive property and the result is:
3(b + s)=3b+3s
Which is the same number of pages Rachel has to write.
Answer: 90 degrees acute
Step-by-step explanation: math
