X^2 -5x -20=0
(x - 5/2)^2 -20 -25/4=0
(x-5/2)^2-105/4=0
(x -5/2 -(105)^1/2)(x -5/2 +(105)^1/2)=0
factors are (x -5/2 -(105)^1/2) and
(x -5/2 -(105)^1/2)
Okay, first you need to know the distance...since the x coordinate does not change we can see that the distance between the two points is just y2-y1, in this case:
3--6=9 so the houses are 9 miles apart.
distance=velocity times time...
d=vt so we can say
t=d/v, we found d=9 and we are told that v=12mph so
t=9mi(h/12mi)
t=0.75 hr, but the question want the time in minutes so
0.75hr(60min/hr)=45 min
So it takes Curtis 45 minute to reach his friends house 9 miles away riding at 12 miles per hour.
Answer:
<h2>A. $97.50</h2>
Step-by-step explanation:
<h3>Step 1: Add all the numbers together</h3>
123 + 89 = 212
56 + 33 = 89
<h3>Step 2: Multiply</h3>
212 x $0.25 = $53.00
89 x $0.50 = $44.50
<h3>Step 3: Add</h3>
$53.00 + $44.50 = $97.50
Answer is a. $97.50
I'm always happy to help :)
B at most 3 times
2 3/4 - 1 1/4 = 1 1/2
1 1/2 ÷ 1/2 = 3
used 1/2 ounce 3 times
so I'd say the answer is b at most 3 times because he couldn't have used it more than 3 times
The answer is A. Each time it is multiplied by a higher number so 1 x 2 = 2 . 2 x 3 = 6 . 6 x 4 = 24 . 24 x 5 = 120 . 120 x 6 = 720