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Tutors Answer Your Questions about real-numbers (FREE)
Question 425344: I. Why must we reverse the direction of the inequality sign change when both sides are multiplied or divided by a negative number? (please note: we already know the answer will be wrong if we don’t – but why is this the case?)
II. Does this happen with equations? Why or why not?
III. Write an inequality for your classmates to solve. In your inequality, use both the multiplication and addition properties of inequalities.
IV. Consider solving your classmates’ inequality. Explain how you arrived at your answers. Also, help other students who may be having difficulty solving inequalities. Ask clarifying questions if your need additional assistance.
Click here to see answer by richard1234(7193)   |
Question 426038: Form the converse: If I eat a lot of sweets, then I will not feel well.
a, If I do not feel well, then I ate a lot of sweets.
b. If I do not eat a lot of sweets, then I will feel well.
c. If I feel well, then I did not eat a lot of sweets.
d. If I do not feel well, then I did not eat a lot of sweets.
e. If I feel well, then I did not eat a lot of sweets.
Click here to see answer by htmentor(1343)  |
Question 426034: Given the situation described, identify the type of sampling involved. A vegan food and clothing store polls every 17th customer about the selection of desserts offered.
a.random sampling
b systematic sampling
c. convenience sampling
d. stratified sampling
e. cluster sampling
Click here to see answer by Theo(13342)  |
Question 428782: i'm in pre-algebra and need help on Pythagorean theorem:
problem #1.) A flag pole is 8 ft. high. It casts a shadow that is 6 ft. long. What is the distance between the top of the pole and the top of the shadow?
picture:
length of the missing side
problem #2.) Minh is flying a kite. The kite string is 30 ft. long. The kite is 20 ft. off the ground. How far from the end of the string to being underneath the kite?
picture:
length of the missing side:
*please help me on my hw
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 434762: Butch and Peggy want to pick up the mess that their grandson has made in the playroom. Butch can do it in 15 min working alone. Peggy, working alone can clean it up in 12 min. How long will it take them if they do it together?
I set it up as 180(X/15+ X/12=1)180
= 12X+15X=180
= 9X=180
= -- ---
9 9
X=20
UNSURE ABOUT MY FINAL ANSWER THOUGH
Click here to see answer by jorel1380(3719)  |
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