The breaking strength x of a concrete slab has a density function for breaking strength values in the range . a) calculate the value of the constant a. b) plot the distribution in maple (must show your code and output). c) what is the probability that the concrete slab has a breaking strength between 130 and 150

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Step-by-step explanation:

You are to use the Constant statement to state a constant and place its value. By declaring a constant, you will have to allocate a significant name to a value. It should also be noted that once a constant is declared, it can’t be modified or given a new value.

Now kindly check the attached images to get the solution to the above question

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

answer: it's d

step-by-step explanation: