Answer: $19x
Step-by-step explanation:
If she bought 2 racing cars,
= $5x +$5x = $10x (Because one car is 5x)
And if she bought 3 motor cycles,
= $3x + $3x $3x = $9x
Now we get our total amount = $10x + $9x = $19x
Hope I could help! :)
42,42,24,36,60,6
1st Find the mean X̅
=(42+42+24+36+60+6)/6 = 35
2nd find the difference between the data set value and the mean (x - X̅)
and square them:
(42-35)² = 49
(42-35)² = 49
(24-35)² = 121
(36-35)² = 1
(60-35)² = 625
(6-35)² = 814
Now add up te result ∑(x-X̅)² =1659
The expected value is the sum of values multiplied by their probabilities.
... 15×(1/5+1/5) + 5×(3/5) = 6+3 = 9
The expected value of a single spin is 9 points.
Use the Pythagorean theorem /look at the picture/
? = x
Given the function below:
To find f(-2), we substitute x = -2 in the equation. Since f(-2) means the value of f(x) at x = -2.
Replace x-term to -2 and evaluate.
Answer
Let me know if you have any doubts!
