Step-by-step explanation:
3^5= 243
3^-1 = 0.3333333
243* 0.33= 80.19
The answer is 28 because the X is being multiplied by 4
All you have to do is divide
500 divided by 10 equals 50
so 50 cars went on the picnic trip
Answer:
The expected number of defective batteries to be pulled out is 0.9, which rounded to the nearest integer gives a total of 1, that is, 1 of the 3 batteries is expected to be defective.
Step-by-step explanation:
Given that a box contains 3 defective batteries and 7 good ones, and I reach in and pull out three batteries, to determine what is the expected number of defective batteries, the following calculation must be performed:
3 + 7 = 100
3 = X
10 = 100
3 = X
3 x 100/10 = X
300/10 = X
30 = X
3 x 3/10 = X
0.9 = X
Therefore, the expected number of defective batteries to be pulled out is 0.9, which rounded to the nearest integer gives a total of 1, that is, 1 of the 3 batteries is expected to be defective.
To answer the question above, substitute the values of the variables x, y and z given to the equation.
2x² - 2(z^4)y² - x²(z^4)
2(-4)² -2(2^2)(3²) - (-4)²(2^4) = -296
Thus, the numerical answer to the question above is -296.
