Answer:
We substitute 
And simplify 
Step-by-step explanation:
First we rearrange the equation -2=-x+x2-4 into standard form of a quadratic
. This equation becomes
where a=1, b=-1, and c=-2.
The formula is:
.
We substitute 
And simplify 


9^2 (write it like a exponent)
Answer:
48 miles per hour
Step-by-step explanation:
first I would convert everything to hours It makes it easier. That means that 3 hours and 45 mins becomes 3 3/4 hours So now you have 180/3.75 = the rate. To find the answer, simply divide that, and you get 48. 48 miles per hour
Answer:
RT = 20, BT = 19, US = 9
Step-by-step explanation:
You calculate the other letters: IR only R is 2, UT, T = 0 and B = 1. US, U = 0 and S = 9.
Answer: yes, jake is incorrect. H-15
Step-by-step explanation:
H+10=25
-10=-10
H=15