The difference of the given fraction is expressed as 
Given the expression:
Take the LCM of the fraction to have:

Hence the difference of the given fraction is expressed as 
Learn more on fractions here; brainly.com/question/78672
Answer:
78 cm should be the correct answer
Step-by-step explanation:
Answer: <em>y = 2x − 4</em>
The correct answer is <em>B)</em> <em>y = 2x − 4</em>
Step-by-step explanation:
<u>Move all terms that don't contain y to the right side and solve:</u>
<em>y = −4 + 2x</em>
<u>Then reorder −4 and 2x:</u>
<em>y = 2x − 4</em>
<u>Final answer is:</u>
<em>B) y = 2x − 4</em>
The answer is $37,923
<span>y = 844.697x^2 + 3723.485x - 13,650
x - number of years
y - the annual profit
If x = 8, the annual profit y is:
y = </span>844.697 * 8^2 + 3723.485 * 8 - 13,650
y = 844.697 * 64 + 29,787.88 - 13,650
y = 54,060.608 + 16,137.88
y = 37,922.728 ≈ 37,923
Answer:
The probability that a defective rod can be salvaged = 0.50
Step-by-step explanation:
Given that:
A machine shop produces heavy duty high endurance 20-inch rods
On occasion, the machine malfunctions and produces a groove or a chisel cut mark somewhere on the rod.
If such defective rods can be cut so that there is at least 15 consecutive inches without a groove.
Then; The defective rod can be salvaged if the groove lies on the rod between 0 and 5 inches i.e ( 20 - 15 )inches
Now:
P(X ≤ 5) = 
= 0.25
P(X ≥ 15) = 
= 0.25
The probability that a defective rod can be salvaged = P(X ≤ 5) + P(X ≥ 15)
= 0.25+0.25
= 0.50
∴ The probability that a defective rod can be salvaged = 0.50