Answer:
The correct one is 6 power7
Answer:
It would take 4 hours for both candles to be the same height
Step-by-step explanation:
Total time (t) for red candle to be same height (h) can be expressed as;
Final height after time t=Initial height-rate per hour
where;
Final height after time=h
Initial height=8 inches
Rate per hour=rate×time=(7/10)×t=0.7t
Substituting;
h=8-0.7t
Total time (t) for blue candle to be same height (h1) can be expressed as;
Final height after time t=Initial height-rate per hour
where;
Final height after time=h1
Initial height=6 inches
Rate per hour=rate×time=(1/5)×t=0.2t
Substituting;
h1=6-0.2t
Since h=h1
8-0.7t=6-0.2t
8-6=0.7t-0.2t
0.5t=2
t=2/0.5
t=4 hours
It would take 4 hours for both candles to be the same height
I think the answer is -2/1x-3
Answer:47.14 in²
Step-by-step explanation:
first, imagine the shape as being two shapes: a rectangle and a quarter of a circle
next, find the area of the rectangle(the dimensions are 11 by 4 inches): 44 in²
then, start finding the area of the quarter circle by finding the area of the circle(using the radius of 2 since 6-4 is 2) and dividing your answer by 4(since you are finding a quarter of the circle): π2²÷4
you get pi because 2² is 4 and a number divided by itself is 1
add pi to 44 and you get ≈47.14 in²