Answer:
it is diff because o the parentheses
Step-by-step explanation:
Jay’s elevation is at -20.
Talia’s elevation is at 20.
Answer:
A. ![\displaystyle observational\:study](https://tex.z-dn.net/?f=%5Cdisplaystyle%20observational%5C%3Astudy)
Step-by-step explanation:
This takes alot of extended research before you even think about using the drug on patients.
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Answer:
7/2
Step-by-step explanation:
Round 6 3/4 to 7
Round 1 1/2 to 2
7 divided by 2
=7/2
Answer:
C
Step-by-step explanation:
In this technique, if we have to factorise an expression like ax2+bx+c, we need to think of 2 numbers such that:
N1⋅N2=a⋅c=1⋅−12=−12
AND
N1+N2=b=−1
After trying out a few numbers we get N1=3 and N2=−4
3⋅−4=−12, and 3+(−4)=−1
x2−x−12=x2−4x+3x−12
x(x−4)+3(x−4)=0
(x+3)(x−4)=0
Now we equate the factors to zero.
x+3=0,x=−3
x−4=0,x=4