First, determine the z-score of 675.
z = (675 - 500) / 100 = 1.75
The z-score of 500 is,
z = 0.
Subtracting the z-scores will give us 1.75. This is equal to 0.9599.
= 0.9599 - 0.5 = 0.4599
Multiplying this to the given number of light bulbs,
n = 0.4599 x 5000 = 2299.5
Therefore, there is approximately 2300 light bulbs expected to last between 500 to 675 hours.
Answer:
13
Step-by-step explanation:
Substitute 3 into c --> 5(3)-2 = 15-2 = 13
Use sin, cos, tan formula
Answer:
C) $3,100-$1,310=$1,790
Step-by-step explanation:
Expenses :
150+850+110+70+90+40= $1,310
Income :
$3,100
$3,100 - $1,310 = $1,790
