the alignment between the magnetic tape and head in a magnetic tape storage system affects the performance of the system. suppose that 10% of the read operations are degraded by skewed alignments, 5% of the read operations are degraded by off-center alignments , and the remaining read operations are properly aligned. the probability of read error is 0.01 from a skewed alignment, 0.02 from an off-center alignments, and 0.001 from a proper alignment .what is the probability of a read error?

answer: it's d

step-by-step explanation:

step-by-step explanation:

the true ones are a b and d

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.