Discussion:
Q1) Solve and graph
-10≤4x+2 and 4x+2<6
Q2) -1
Q3) Solve
-7≤3x-6≤-1
Q4) Solve and graph
X+12<-7 or x+12>4
Q5) Solve
2x-7/6 ≤-8 or 2x-7/6 ≥7
Q6) In order to achieve maximum results from aerobic exercise, one should maintain one's heart rate at a certain level. A 45- yr old women with a resting heart rate of 75 beats per minute should keep her heart rate between 135 and 155 beats per minute while exercising. She checks her pulse for 10 seconds while exercising. What should the number of beats be ?
Q7) the body mass index I can be used to determine an individual's risk for heart disease. And index less then 25 indicates a low risk. The body mass index is given by the formula or model I=700w/h2
Where W= weight in pounds and H= height in inches. Frances weights 220 pounds and stands 68 inches tall. What is his approximate body mass index? Find an inequality describing all weights W that Frances can have and be in the low-risk category Remember to round to nearest whole number
Q8) Solve
-5/2 x≥-9/4