Recent activity by Fan Ouyang

Question

Given: cos(t) = 2/3; simplify the following expression and then evaluate it: sec(−t)−cos(−t)tan^2(−t). A) 1 B) 2 C) 3 D) 4

asked Nov 23, 2024

1 answer 194k views

The annual average number of fatalities due to tornadoes has decreased since 1950s. Explain why.

asked Oct 19, 2024

1 answer 226k views

How many moles of NaOH are needed to create a 2 M solution in 8 liters of solution? Please help, I’m really stuck on this one.

asked Sep 15, 2024

1 answer 122k views

Explain the following statement about the rate law equation: The rate constant isn't really constant. Include the definition of the term rate constant in your answer and give two specific examples to support

asked Sep 9, 2024

1 answer 15.4k views

The quality manager of XV2 Corp. has asked you to analyze some data that has already been collected for a capacity study. The sample consists of thirty data and it is required that the analysis be carried

asked Sep 1, 2024

1 answer 200k views

The improvement in outcomes that occurs when specialized producers exchange goods and services is called: A) Absolute Advantage B) Comparative Advantage C) Division of Labor D) Terms of Trade

asked Jul 18, 2024

1 answer 183k views

Noraml reaction to cold, no perc sens, but no xray - dx?

answered May 26, 2024

1 answer 124k views

Find the dimension of the rectangle of largest area that has its base on the x-axis and its other two vertices above the x-axis and lying on the parabola. a) 1 unit b) 2 units c) 3 units d) 4 units

answered May 22, 2024

1 answer 86.3k views

Products that the consumer buys only after comparing quality and price from a variety of sellers are called: A. specialty goods B. shopping goods C. convenience goods D. consumer goods

answered Apr 14, 2024

1 answer 33.9k views

What is the magnitude of A + B + Č, where Å = 1.00 i+ 4.00 i - 1.00 k, B = 3.00 î - 1.00 j - 4.00 k and Č = -1.00 i + 1.00 i? A) 2.00 B) 6.78 C) 7.07 D) 8.12 E) 10.76

asked Mar 27, 2024

1 answer 225k views

Balanced reaction between Mg₂ and Na₂CO₃ and there state symbols

answered Feb 1, 2024

1 answer 54.7k views

Find the angle of elevation of the sun when a 15.3 foot tall electric pole casts a 21.2 foot long shadow. Make a drawing, set up your trig ratio, and solve to the nearest tenth. Show work

asked Jan 21, 2024

1 answer 142k views

Which of the following statements about Maya religion is true? A.The Maya worshiped many different gods. B.The Maya only offered animal sacrifices, not human ones. C.The Maya held only one religious festival,

asked Jan 18, 2024

2 answers 5.6k views

PLEASE HELP!! the question : what explains why many Roman Roads still exist?

asked Jan 8, 2024

2 answers 185k views

Alvin is 9 years younger than Elga. The sum of their ages is 67. What is Elga's age?

answered Dec 22, 2023

2 answers 24.3k views

Nancy left a bin outside in her garden to collect rainwater. She noticed that 1/2 gallon of water fills 2/3 of the bin. Write and solve the equation to find the amount of water that will fill the entire

asked Oct 17, 2023

1 answer 164k views

5. Why might cartoonish characters ""work"" or be more visually appealing if colors were painted directly on a model rather than applying a full texture later in a production process?

answered Oct 13, 2023

1 answer 195k views

Which equation correctly compares the hundreds place and tens place in 5,555? A. 50 ÷ 5 = 10 B. 500 ÷ 50 = 10 C. 500 ÷ 5 = 100 D. 5,000 ÷ 50 = 100

answered Aug 20, 2023

2 answers 57.3k views

A ladder leans against a building. The angle of elevation of the ladder is 70°. The top of the ladder is 25 ft from the ground. To the nearest tenth of a foot, how far from the building is the base of

asked Aug 8, 2023

2 answers 218k views

BC=x-3, AB = 4, and AC = 2x - 10. Find BC.

answered Jul 11, 2023

1 answer 163k views

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