Answer:
to cover this cube she needs at least 1,176 square inches of protective covering.
Step-by-step explanation:
The surface area of a cube is given by the following formula:
surface area cube = 6*l²
While the perimeter of each face of the cube is:
perimeter face = 4*l
Where l is the length of each side of the cube. Applying the data from the problem we have:
56 = 4*l
l = 56/4= 14 inches
surface area cube = 6*(14)²
surface area cube = 6*(196)
surface area cube = 1,176 square inches.
Therefore to cover this cube she needs at least 1,176 square inches of protective covering.
Answer:
166.1? this is how i would do it
Step-by-step explanation:
A. 4x4x6= 96
B. 3.5x3.5x2= 24.5
C. 3.8x3x4= 45.6
96+24.6+45.6= 166.1
Answer:
The probability that the good exam belongs to student <em>X</em> is 0.8571.
Step-by-step explanation:
It is provided that the probability that <em>X</em> did well in the exam is, P (X) = 0.90 and the probability that <em>X</em> did well in the exam is, P (Y) = 0.40,
Compute the probability that exactly one student does well in the exam as follows:
Then the probability that <em>X</em> is the one who did well in the exam is:
Thus, the probability that the good exam belongs to student <em>X</em> is 0.8571.
Jason can check his answer by plugging in 6.5 for x