Questions in Grade High-school

Questions in Grade High-school

[Done] Factorise completely the following quadratic expressions: a. x^2 + 2x - 3 b. 6 - 5x - x^2 c. 3x^2 - 17x + 10 d. p^2 - 1

[Done] Write the opposite of the following words: Across 2. Bad 5. Far 6. Sad 7. Hard 8. Cold 10. Low 11. West Down 1. White 3. Happy is the ______ of sad 4. Wet 5. South 6. Sick 9. Thick

[Done] For each sentence choose among can't, might, or must to fill each space. 1. Your mother must be a great cook. You are always so keen to get back home to eat! 2. I don't know why I am so tired these days. I might be working too hard. Or maybe I am not sleeping too well. 3. Do you know where Carl is? He can't be out, his car keys are on the table. 4. You seem to know everything about the theatre. You must go every week. 5. To give the promotion to Ramesh was silly. He can't know much about this company after only a year of working here. 6. Go and look in the kitchen for your gloves. They must be in there. 7. Oh, the phone is ringing. Answer it. It must be Kanchan. She always rings at this time. 8. Dino has been watching TV since early this afternoon. He must be completely tired by now. 9. That couple can't think much of this film. They're leaving already after 20 minutes. 10. That's the new car they have bought this year. They must be very rich!

[Done] $\int \frac{x+5}{(x+6)^2} e^x \, dx$ is equal to:

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] I wish I had studied harder for the exam. This implies that I... A. did study hard for the exam. B. will study harder for the next exam. C. did not study hard enough for the exam. D. am currently studying hard for the exam.

[Done] Can you open the window, please? It is extremely hot in this room. The underlined word has a function to .... A. express someone's skill or ability B. request to another person to do something C. ask for permission D. offer something to a person

[Done] For a stretched spring which is released and undergoing oscillations, which of the following statements is correct? A) Potential energy maximum at only right extreme position B) Potential energy maximum at only left extreme position C) Potential energy maximum at both the extreme positions D) Potential energy maximum at equilibrium position

[Done] The mean test scores with standard deviations of four English classes are given below. | Class | Mean | Standard Deviation | | :-------- | :------- | :------------------- | | Mrs. Jones | 89 | 1.9 | | Mrs. Rijo | 82 | 1.4 | | Mr. Phan | 73 | 3.4 | | Mrs. Scott | 90 | 6.1 | Which statement is most likely to be true? A. The scores of Mrs. Scott's class are the closest to the class mean. B. The scores of Mr. Phan's class are the closest to the class mean. C. The scores of Mrs. Jones's class are the closest to the class mean. D. The scores of Mrs. Rijo's class are the closest to the class mean.

[Done] The number name for the predecessor of 1 crore is