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Questions in Grade High-school

📝 Answered - Lorraine writes the equation shown. [tex]x^2+y-15=0[/tex] She wants to describe the equation using the term relation and the term function. The equation represents $\square$.

📝 Answered - Which of the following is not a possible value for a probability? A. 0.82 B. 0.001 C. [tex]$\frac{1}{16}$[/tex] D. [tex]$\frac{5}{4}$[/tex]

📝 Answered - If [tex]$\cos 45^{\circ}=\frac{1}{\sqrt{2}}$[/tex], prove that [tex]$\tan 22 \frac{1}{2}^{\circ}=\sqrt{2}-1$[/tex]

📝 Answered - Which reading component is a key indicator of future reading problems in young children?

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

📝 Answered - 1) Evaluating a function a. Means finding the value of f(x) or y that corresponds to a given value b. Means finding the value of f(x) or x that corresponds to a given value c. Both a and b. d. None of the above. 2) How do you evaluate a function? a. To evaluate function is to change its variable with a given number or expression. b. To evaluate function is to replace its variable with a given number or expression. c. To evaluate function is to replace its variable with a given number or functions. d. Both b and c. 3) It is represented by x and the output by f(x). a. Input b. Output c. Variable d. Function 4) If f(x) = 9 - 6x, evaluate f(-1). a. 15 b. 16 c. 17 d. 18 5) Find g(2-x) if g(x) = x² - 4x a. x² - 5x + 4 b. x² - 3x - 4 c. x² + 5x - 4 d. x² + 3x + 4

📝 Answered - Use the vertex formula to determine the vertex of the graph of the function. f(x) = -x² + 8x + 1 (x, y) = ( ) Write the function in standard form. f(x) =

📝 Answered - A professor is expected to cover 14 chapters in a supply chain management text each semester. One semester the professor dismisses class 10 minutes early every Monday and Friday and is able to cover only 12 chapters. What is the professor's efficiency? -2 2 86% 114%

📝 Answered - 1. A: I want to clean my coat. B: Just take it to the ____. (a) dry cleaner's (b) dentist (c) petrol station 2. The firefighter told the man to ____ out of the window. (a) drop (b) jump (c) shout 3. I need to ____ an appointment with Dr Carnell. (a) have (b) do (c) make 4. Can you ____ Fay up from work tomorrow? (a) bring (b) pick (c) carry 5. I always read a good book when I want to ____ my mind off things. (a) take (b) make (c) put 6. Andrew is very ____ about the exam. He almost started crying this morning. (a) relaxed (b) stressed (c) helpless 7. The rescue team ____ the young boy from the fire. (a) survived (b) put out (c) rescued B. Look at the prompts and write sentences. Use should or shouldn't. 1. Ellen's got a temperature. - Ellen shouldn't work all day. - Ellen should drink lots of water. 2. The boys have got a sore throat. - The boys shouldn't eat ice cream. - The boys should see a doctor. 3. Peter has got stomach ache. - Peter shouldn't eat lots of food. - Peter should get some rest. 4. I've got toothache. - I should see a dentist. - I shouldn't eat chocolate. C. Read and report what the people said. 1. 'Help me with the shopping bags, please, Kelly,' said Brian. - Brian asked Kelly to help him with the shopping bags. 2. 'Don't eat any food for four hours,' said Dr Sharp. - Dr Sharp told the patient not to eat any food for four hours. 3. 'Stop running, children!' said Anna. - Anna told the children to stop running. 4. 'Don't step on the balls, please, Sue,' said the tennis instructor. - The tennis instructor asked Sue not to step on the balls. 5. 'Lend me your car, please,' Harry asked his cousin. - Harry asked his cousin to lend him his car. D. Match. 1. What seems to be the problem? - c. I can't sleep at night. 2. What should I do? - e. Don't panic. Just keep trying. 3. How may I help you? - d. I'd like to speak to your boss, please. 4. I would like to make an appointment with Dr Harris, please. - a. He's free at 3 o'clock. 5. Thank you for helping me. - b. What are friends for?

📝 Answered - 1. Which of the following is the Kaprekar's constant? A) 6382 B) 8632 C) 6174 D) 6714 2. How many rounds does the number 6382 take to reach the Kaprekar's constant? A) 2 B) 4 C) 6 D) 3 3. The German mathematician Lothar Collatz conjectured that the sequence will always reach A) 1 B) 2 C) 0 D) 5 4. Which of the following number is supercell for the sequence 43, 79, 75, 63, 10? A) 43 B) 79 C) 75 D) 10 5. What is the smallest number whose digit sum is 14? A) 59 B) 95 C) 149 D) 68 6. Which of the following is the largest 5-digit number whose digit sum is 14? A) 10049 B) 94001 C) 93002 D) 94100 7. Which of the following is palindrome number? A) 1212 B) 123456 C) 12321 D) 625 8. Which of the following is the largest 3-digit palindrome number? A) 101 B) 989 C) 898 D) 999 9. Which of the following is the smallest 3-digit palindrome number? A) 101 B) 989 C) 898 D) 999