Ah that looks hard im in geometry honors so i’ll try to explain it
Answer:
2 hrs 13 mins
Step-by-step explanation:
If Richard can paint the living room in 4 hrs, then in 1 hour he can paint 1/4 of the living .
If Vanessa can paint the living room in 5 hours, then in one hour, she can paint 1/5 of the living room.
In one hour Richard and Vanessa can paint 1/4 + 1/5 = 1/y
y is the number of hours it will take both Richard and Vanessa to paint the living room. 1/y is how much of the house they can paint in one hour.
1/4 + 1/5 = 1/y
(5 + 4)/20. ( find the LCM)
9/20 = 1/y
9y= 20
y = 20/9
y = 2.22hrs
y = 2 hrs 13 mins
Find out the differences between consecutive numbers of both series.
x = 2, 1, 1, 2
y = 8, 1, 1, 8
Here, you can see it's not varying with constant degree. So, your answer would be "Non-Linear"
Hope this helps!
<span>Lúcia is using energy at a rate of 420 kcal/h.
To find out the rate per minute we need to transform number:
420 kcal/h = 420 000 cal/h
1h = 60 min
420 000 cal/h = 420 000 cal /(60min) = 7 000 cal / min or 7kcal/min</span>
Answer:
choose D
Step-by-step explanation:
x/(x²+3x+2) - 1/[(x+2)(x+1)]
x² + 3x + 2 = x² + 2x + x + 2
= x(x + 2) + (x + 2)
= (x + 2)(x + 1)
= x/[(x+2)(x+1)] - 1/[(x+2)(x+1)]
= (x-1)/[(x+2)(x+1)]
= (x-1)/(x²+3x+2)