X^2 - 10 = 3x
X^2 - 3x - 10 = 0
(x - 5) (x + 2) = 0
x = 5 and x = -2
Answer: x = -2
Answer:
<h2>Frank speed = 37mi/h</h2><h2>Gregory speed = 59mi/hr</h2>
Step-by-step explanation:
Let the speed of Frank be x and speed of Gregory be y. If Gregory drives 22 miles per hour faster than Frank, then y = 22+x. SInce they they are 216miles apart after 2.25 hours,
Speed = Distance/Time
Total time travelled by them = 2.25hours
Total distance = 216 hours
Total speed = x+y = x+22+x
Substituting this parameters into the formula given to get x we will have;
x+22+x = 216/2.25
2x+22 = 96
2x = 96-22
2x = 74
x = 74/2
x = 37
<em>Hence the speed of Frank is 37miles per hour while that of gregory is 37+22 = 59miles/hour</em>
Answer:
3/32
Step-by-step explanation:
prob greater than 5
that would be 6,7 or 8
p = 3/8
prob purple
p = 1/4
Prob of both
p = 3/8 * 1/4
p = 3/32
Answer:
71° F
Step-by-step explanation:
Consider the rational part of f(t)
( divide numerator and denominator by t³
= 
As t → infinity then 
→ 0 , the expression simplifies to
= 
= 40
Thus after driving for a long time
f(t) = 31 + 40 = 71° F
