Questions by Kfis

Questions by Kfis

Prove that: (A cos x + B sin x)^2 - (B cos x + A sin x)^2 = (A^2 - B^2) (cos^2x - sin^2x)

asked Apr 7, 2021

1 answer

4 votes

34.0k views

Kall is single and earns $45,800 per year. what is her annual federal withholding? A. $289.37 B. $144.64 C. $578.54 D. $7,521.02

asked Mar 28, 2021

1 answer

1 vote

28.1k views

What is created during the design phase of ADDIE as a vehicle for feedback before moving on to the next stage? A) Thesis B) Storyboard C) Prototype D) Internship

asked Jan 18, 2021

1 answer

3 votes

198k views

If 5 gallons of milk costs $12, how much should 1 pint cost?

asked Jan 2, 2021

1 answer

2 votes

193k views

What should be changed to make the following sentence true? "A theta wave is a very high amplitude pattern of brain activity that may in some cases occur in response to environmental stimuli."

asked Oct 25, 2020

1 answer

0 votes

221k views

what does churchill mean when he says “never in the field of human conflict was so much owed by so many to so few”?

asked Feb 9, 2020

1 answer

4 votes

26.9k views

During the Carboniferous period, which occurred approximately 360 to 300 million years ago, most of Earth was covered in dense rainforests. These rainforests were sustained by a humid and tropical climate

asked Jan 22, 2020

2 answers

0 votes

164k views

Tickets to a sold-out basketball game originally cost $50 each and cannot be returned. I bought one and now scalpers are willing to pay $125 for the ticket. The cost that should be considered if I am deciding

asked Jan 1, 2020

1 answer

4 votes

82.4k views

One of three biomolecues stores all of information needed to produce body proteins? A. Nucleic Acid B. Protein C. Lipid D. Carbohydrates

asked Oct 19, 2019

1 answer

5 votes

191k views

Name two line segments

asked Jun 15, 2019

1 answer

5 votes

132k views

What occurs when people are exposed to substances that their bodies are sensitive to? Allergies Histamines Allergens Antihistamines

asked Mar 2, 2019

2 answers

2 votes

49.0k views

A train travels 304 miles in 4 hours. If it continues to travel at the same rate, how many miles will it travel in 7 1 2 hours? A) 532 miles B) 540 miles C) 570 miles D) 608 miles

asked Jan 15, 2019

2 answers

1 vote

205k views

How does prolonged space travel affect the muscular system?

asked Oct 1, 2018

2 answers

3 votes

174k views

What is a chemical bond

asked Sep 1, 2018

2 answers

0 votes

167k views

What is the 6th value in the sequence with the explicit formula an=−2n−14? A −26 B −12 C −10 D 6

asked Aug 4, 2018

2 answers

0 votes

56.2k views

Find the area of the circle with the given radius or diameter. Use = 3.14. r = 6 A = 37.68 sq. units 113.04 sq. units 226.08 sq. units

asked Apr 5, 2018

2 answers

1 vote

91.7k views

What are the solution(s) to the quadratic equation x2 – 25 = 0? x = 5 and x = –5 x = 25 and x = –25 x = 125 and x = –125 no real solution

asked Nov 12, 2017

2 answers

2 votes

107k views

Z=2y+3x^2-2(3x)^2- 3(4y)-(2x)^2/2 please help!

asked Mar 13, 2017

1 answer

4 votes

78.6k views

What are two cities not found in greece?? please help me

asked Feb 1, 2017

1 answer

2 votes

215k views

David has a hose that is 27 ft long. He wants to cut it into two peices so that the longer peice is 3 ft more than two times the length of the shorter piece How long will each hose be Shorter piece : __ft

asked Dec 16, 2016

1 answer

1 vote

157k views

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