9514 1404 393
Answer:
Above the dashed line
Step-by-step explanation:
That y is greater than the values on the line tells you that the shading is above the line.
That the "equal to" case is not included tells you that the line is dashed.
A) For this problem, we will need to use a normal calculation, in that we find the z-score and the area to the right using Table A.
z = (10 - 7.65) / 1.45
z = 1.62
area to the left for a z-score of 1.62 = 0.9474
area to the right for a z-score of 1.62 = 0.0526
The probability that a randomly selected ornament will cost more than $10 is 0.0526 or 5.26%.
B) For this problem, we will use the binomial probability formula since the problem is asking for the probability that exactly 3 ornaments cost over $10. There are two forms of this equation. One is <em>nCr x p^r x q^n-r</em> and the other is <em>(n r) x p^r x (1 - p)^n-r</em>. I will show both formulas below.
8C3 x 0.0526^3 x 0.9474^5
(8 3) x 0.0526^3 x 0.9474^5
With both equations, the answer is the same. Whichever you are more familiar or comfortable with is the one I would recommend you use.
The probability that exactly 3 of the 8 ornaments cost over $10 is 0.00622 or 0.622%.
Hope this helps!! :)
They need a common denominator. so the common denominator is 8. so multiply the 3 and the 4 each by 2. so then you get 6/8. then subtract 1/8 from 6/8. so it looks like 6/8-1/8 and you'll get an answer of 5/8.
Answer:no it is not equivalent
Step-by-step explanation:
36x3=108 so there is 108 shirts in that box
60x6=360 so 360 is in that box
so not equivalent because they have different amounts in the boxes one is more and the other one less
your welcome
Solving an equation is simply like solving an equation. For this problem, you must add 6 on both sides to get -0.8x alone. -10 + 6 would equal -4. Therefore, the inequality would look like this: -0.8x < -4
Now you have to divide -0.8 on both sides to have x alone. Since you are dividing a negative to the other side, the sign flips to >. When you divide -0.8 to -4, the answer would be 5. So therefore, the answer is: x > 5
In order to check this, you must plug in 5 into the x. -0.8 times 5 would equal -4. -4 - 6 would equal -10. -10 is the same as the other side. (-10 < -10) That means the answer would be correct. Hope this helps; cheers, mimiisawesome5
