Answer:
-10+20x
Step-by-step explanation:
-5+10x+10x-5
-5-5+20x
-10+20x
Answer:
x=5 and y=-2
Step-by-step explanation:
3x+5y=5
-(7x+5y=25)
-4x=-20
x=5
plug 5 into one of the equations. 3(5)+5y=5
y= -2
Answer:
length times width
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:
(c) (11+y) > -33 represents the inequality for the sum of 11 and y is greater than -33.
Step-by-step explanation:
According to the given question:
Sum of 11 and y is represented as (11 + y)
Now, the given sum is greater then -33.
⇒ Sum (11 +y) is greater than - 33.
or, (11+y) > -33
Hence, the expression (11+y) > -33 represents the inequality for the sum of 11 and y is greater than -33.
