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Answers by Churk

Answers by Churk
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Explain why there must be at least two lines on any given plane
answered Sep 9, 2019
6 votes
109k views
Prove that :- Cos3A-cosA/sin3A-sinA+cos2A-cos4A/sin4A-sin2A=sinA/cos2Acos3A
answered Jul 20, 2019
3 votes
422 views
The vast majority of enslaved africans were destined to perform what type of work within the expanding north american colonies
answered Jul 2, 2019
5 votes
5.1k views
Solve the system of elimination -2x+2y+3z=0 -2x-y+z=-3 2x+3y+3z=5
answered Jun 8, 2019
6 votes
64.6k views
A shuffled deck of cards is placed face- down on the table. It contains three hearts cards, 8 diamonds cards, 5 clubs cards, and seven spades cards. What is the probability that the top cards are one of
answered May 23, 2019
2 votes
135k views
Evaluate f=9/5c + 32 for c=20 degree
answered Mar 24, 2019
3 votes
97.7k views
Please help me with number 8 thank you so much
answered Sep 2, 2018
3 votes
71.0k views
Which literary element would you most likely find in a modernist work?
answered Jun 25, 2018
5 votes
217k views
PLEASE ANSWER PROPERLY The law of cosines is used to find the measure of Z. 16 squared = 18 squared + 19 squared – 2(18)(19)cos(Z) 256 = 324 + 361 – (684)cos(Z) 256 = 685 – (684)cos(Z) –429 = –(684)cos(Z)
answered May 18, 2018
4 votes
17.9k views
does anyone have any original, not plagiarized, opening sentences for an expository essay about why friendship is important? thank you!!
answered May 2, 2018
7 votes
183k views
What weapons were used at the battle of kharkov?
answered Feb 28, 2018
4 votes
79.9k views
How many grams would 3.36 × 1023 molecules of copper (II) sulfate (CuSO4) weigh?
answered Oct 17, 2017
3 votes
138k views
Antonyms: Match the word with the word or phrase most nearly its opposite. preposterous a. humble b. sensible c. fair d. frustrated
answered Aug 23, 2017
5 votes
158k views
Which of the following men ran as a strong third party presidential candidate in 1992 and 1996? Dan Quayle Ralph Nader Pat Buchanan Ross Perot
answered Apr 16, 2017
5 votes
13.1k views
Fred sells flags for f dollars each. he decides to give a discount and sell the flags in his store for a 26% markdown. write an expression for the sale price of the flag
answered Jan 14, 2017
1 vote
153k views
When solving the equation 4(3x+2)-9=8x+7, Emily wrote 4(3x+2)=8x+16 as her first step. Which property justifies Emily's first step
answered Aug 13, 2016
6 votes
68.6k views
One angle is five less than three times the size of another angle. Together they have a sum of 143 degrees. What are the sizes of each angle?
answered Jan 26, 2015
4 votes
162k views
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