The actual wind resistance is also an independent lognormal random variable with a mean of 90 and standard deviation of 13.5. failure in the antenna will occur whenever the maximum wind pressure exceeds its wind resistance capacity. during a wind storm, what is the probability of failure of antenna?

answer:

176.8 inches

step-by-step explanation:

answer:

4

step-by-step explanation:

multiply the first equation by -3 would give you

-12x + 18y = -6

to eliminate x on the second equation, you would need 12x to cancel the -12x on the first equation

what number times 3x woud give you 12x? the answer would be 4.

lets multiply equation 2 by 4 to see what happens

12x + 20y = 44

so 12x will cancel -12x on the first equation

good luck!

answer:

(2.5,10.5)

step-by-step explanation:

given that a ball is thrown verically upwards with an initial velocity. we know that the path is a trajectory as a parabola.

from graph we find that horizontal is in yards and vertical is in feet.

we have to find the coordinates of a

when ball is thrown upward, acceleration due to gravity is -32 ft/s^2

since height = s=+h0

we get h0 as initial height.

but without any calculation from the graph we find out these coordinates as

x coordinate = 2.5(since in the middle of 0 and 5)

y coordinate = 10.5(since in the middle of 9 and 12)