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Questions in Grade High-school

[Done] Which of the following battles was the first one fought solely by aircraft in which the opposing ships never saw each other? A. Battle of Midway B. Battle of Lake Erie C. Battle of Coral Sea D. Battle of Wake Island

[Done] What is the molecular formula of the compound [tex]CH _2[/tex] with molar mass [tex]=168[/tex] [tex]g / mol[/tex]? A. [tex]C _{10} H _{20}[/tex] B. [tex]C _{12} H _{24}[/tex] C. [tex]C _{11} H _{22}[/tex] D. [tex]C _8 H _{16}[/tex]

[Done] Outline the physical and cultural characteristics of ancient Mesoamerica.

[Done] Factorise fully the following: a) $x^2+3 x$

[Done] Your classmate wonders how we get the constant of x^2 + 10x to make it a perfect square trinomial. What is the correct response? A. Divide 10 by 2. B. Square the quotient of 10 and 2. C. Half the quotient of 10 and 2. D. Twice the quotient of 10 and 2.

[Done] D. From binary to octal 1. 01110 2. 1000111 3. 1110001

[Done] Join the following pairs of sentences into one by using relative pronouns: (a) My father gave me a pen. It has been stolen today. (b) Where is the man? His wallet was stolen yesterday. (c) We met a traveller. His bag was stolen. (d) Everyone likes the boy. He speaks the truth. (e) You are the man. I wanted to see. (f) The girl has come. I was saying something about her. (g) The cook saw the dog. It drank the milk. (h) Here is the boy. The boy was shouting in the class.

[Done] Which of the following are reserved for U.S. citizens only? (A) Voting, serving on a jury, and holding federal office (B) Having a high level of political efficacy and serving on a jury (C) Volunteering in your community and holding federal office

[Done] During a math test, four students got the following scores: 75, 80, 90, and 85. What is the median test score?

[Done] Directions: Please write this problem in one whole sheet of paper. Answer the following problems using the 7 steps in solving word problems. Problem #1 Title: Lunchtime Clock Problem: Emily's lunch break starts at 12:00 PM. She returns to class at 12:45 PM. What time does her lunch break start and end in 24-hour format? Problem #2 Title: Movie Time Problem: A movie starts at 3:30 PM and ends at 6:00 PM. What is the start and end time of the movie in 24-hour format? How long is the movie? Problem #3 Title: Travel Schedule Problem: Jamal's train departs at 7:15 AM and arrives in another city at 2:50 PM. What is the departure and arrival time in 24-hour format? How long is the train ride?