Answer:
the answer is 24
Step-by-step explanation:
72/y=3
72/3
24
Answer:

And replacing we got:

Step-by-step explanation:
We can define the random variable X as the thickness of a protective coating applied to a conductor designed to work in corrosive conditions. And the distribution for X is given by:

And we want to find this probability:

And in order to find this probability we can use the cumulative distribution function given by:

And if we use this formula for the probability desired we have:

And replacing we got:

Answer:
x = 1, y = -4
Step-by-step explanation:
7х + 2y = -1 ------ eq1
3х — 4y = 19 ------ eq2
multiply eq1 by 2
2 x (7х + 2y = -1)
14x + 4y = -2 -----eq3
by elimination, add equation 2 and 3
14x + 3x = 19-2
17x = 17 (divide both sides by 17)
x = 1 (answer)
substitute into eq1
7(1) + 2y = -1 (subtract 7 from both sides)
2y = -1 -7
2y = -8 (divide both sides by 2)
y = -8/2 = -4 (answer)
Answer:
84.8 sq in
Step-by-step explanation:
The area of the top and bottom are each 1/2(3.7 x 4) = 7.4, so they total 14.8
2 of the sides are 5 x 5 = 25, so they total 50
1 side is 5 x 4 = 20
14.8 + 50 + 20 = 84.8 sq in
Answer:
what grade?
Step-by-step explanation: