Answer:
-18
Step-by-step explanation:
-8 + 70/-7
-8 - 10
-18
Answer:
Elimination
Step-by-step explanation:
Graphing takes too long, substitution can sometimes complicate things quickly, therefore I would use elimination as my prime method of solving systems of equations.
Answer:
4269
———— = 21.34500
200
Step-by-step explanation:
Step 1 :
4269
Simplify ————
50
Equation at the end of step 1 :
4269
———— ÷ 4
50
Step 2 :
4269
Divide ———— by 4
50
Final result :
4269
———— = 21.34500
200
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Kayla's expected value for a 2- point shot is 1 point.
What is expected value?
The expected value, also known as expectation, expectancy, arithmetical expectation, mean, average, first or moment, is a generalization of the weighted average in the field of probability theory. Informally, the estimation is the arithmetic mean of a significant number of values of a random variable that were independently chosen. A weighted average of all potential outcomes constitutes the expected value of the a random variable with such a finite number of outcomes. When there is a continuum of potential outcomes, integration defines the expectation. The expectation is provided by Lebesgue integration in the measure theory-based axiomatic foundation for probability.
Sol- The expected value is calcuated using the formula:
EV= x.P(x)
where x is the weight/value of the event, and P(x) is the probability of the event occurring.
For a 2-point shot, we have:
X=2
P(x) = 50/100 = 0.5
There for the expected value will be -
EV = 2×0.5 = 1
Thus,
The expected value will be 1 point.
To know more about expected value click-
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Answer:
$2.00
Step-by-step explanation:
You can form an equation with these statements, x being the price of cheese pizza and y being the price of pepperoni. Making the equation,
3x+4y=18
3x+2y=12
Solving the equation,
3x+4y=18
6x+4y=24
-3x=-6
x=2
y=3
Solving another way,
2y=6
y=3
x=2
Therefore, the answer is $2.00
