77/8= 9.625 and 31/4= 7.75...so 9.625-7.75= 1.875
5(x-2) or 5x-10 are both correct
Answer:
1st option
Step-by-step explanation:

note that the cube is only for c not a
Answer:
The intensity on a screen 70 ft from the light is 1.728 foot candle.
Step-by-step explanation:
Given that,
The magnitude of intensity
of light varies inversely as the square of the magnitude of distance D from the source.
That is

Then,

Given that,
The magnitude of intensity of illumination on a screen 56 ft from a light is 2.7 foot-candle.
Here,
=2.7 foot-candle,
= 56 ft
=?,
= 70 ft.




foot-candle
The intensity on a screen 70 ft from the light is 1.728 foot candle.
Answer: only Kayla
Step-by-step explanation: