Miscellaneous Exercise 3 I. Write true for the correct statements and false for the incorr
1. Ratio can be defined as "for every hundred terms".
2. 25:50 = 4x:8 if x=2.
3. The ratio of 5 days to 1000 hrs is 3:25. T
profit
4. Profit % =
x 100%.
cost price
5. If then the value of the expression by+5x is 5. T
3y-2x
6. Percentage loss =
X 100%.
selling price
3
у
5
loss
.

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)