Answer:
63
Step-by-step explanation:
Answer:
I(7) = 22.96 W/m²
Step-by-step explanation:
Let intensity of light, be I(d) where d is distance. There must be a proportionality factor K such as
I(d) = K /d²
Now for d = 5 m I(d) = K* 1/d²
then 45 * 25 = K
K = 1125
To find the intensity when the distance from the light bulb is 7 m away
I(7) = K / 49
I(7) = 1125/49 W/m²
I(7) = 22.96 W/m²
Answer:
5+2x
Step-by-step explanation:
Answer:
1st sequence: f(n)=f(n-1)-5 with f(1)=62.
2nd sequence: f(n)=f(n-1)+9 with f(1)=-15.
Step-by-step explanation:
The first sequence, to get the next term you just subtract 5 from the previous term.
The recursive form is f(n)=f(n-1)-5 with f(1)=62.
The sequence, to get the next term you just add 9 to the previous term.
The recursive form is f(n)=f(n-1)+9 with f(1)=-15.
Answer:
12 square inches?
Step-by-step explanation:
8x6=48/4=12
