Answer:
Option 1, 2, and 4 are correct. Option 3 is incorrect.
So the answer might be 61.0 because if you subtract (-)63.5 with 2.5 it would 61.0 so i dont know ..but good luck and if i fail you im so sorry
Answer:
It took Pedro <em>3.81 hours</em> to reach the lake.
Step-by-step explanation:
Time taken by Mike to hike a lake = 4.5 hours
Average rate of Mike while hiking the lake = 
Formula for distance can be seen as:

Distance traveled by Mike = 
Rate of Pedro while hiking the same distance = 
Given that, Pedro also travels the same distance.
And we have to find the Time.


It took Pedro <em>3.81 hours</em> to reach the lake.
Answer:
Move everything so all terms are on one side of the = sign, and solve for zero using the Quadratic Formula. There are two answers: v=7±√69
10
Step-by-step explanation:
Subtract 1 from both sides so you have
e "standard form" of a quadratic is
, so first we have to identify a, b, and c in your equation: a=5, b= -7, and c= -1.
The quadratic formula is
. Plugging in your values, we get
−
. It looks a little funny, but you can't simplify it any more. You can check the answer by graphing the function on your calculator and asking for the function value at these points.
After graphing, hit 2nd, "Calc", "Value" on your TI, and type in either
, and you'll get that
Answer:40
Step-by-step explanation: