Questions by David Joyner

Questions by David Joyner

The cosmic distance ladder begins with the most direct measurements of distance, such as .... A. supernovas B. Cepheid variables C. main sequence fitting D. parallax

asked Dec 24, 2024

1 answer

3 votes

128k views

Find f'(x) and find the value(s) of x where the tangent line is horizontal.

asked Sep 19, 2024

1 answer

2 votes

200k views

Assuming that the river’s velocity at the gauge station was 6 ft/sec on that day, what was the discharge of the Merced River at Pohono Bridge? a) 36 ft³/sec b) 42 ft³/sec c) 48 ft³/sec d) 54 ft³/sec

asked Sep 15, 2024

1 answer

5 votes

135k views

In 1829, Lydia Maria Child wrote a popular book called:

asked Sep 1, 2024

1 answer

5 votes

136k views

4x New technology, such as renewable energy sources, has many positive aspects such as 4x A using nonrenewable resources. 4x B reducing the emissions of carbon dioxide. x x C increasing the annual average

asked Aug 22, 2024

1 answer

5 votes

2.5k views

Which of the following are equivalent to (8x² + 1) + 3x² + ? Select all that apply. □A) 6x² + ²+ 3x² + B) 6x² +1+3x² + c) 9x² +11/ □D) 9x² +/+ 1/2 ☐ E) 9x² + 2 ☐F) 9x² + 1 100 points pls

asked Aug 5, 2024

1 answer

5 votes

217k views

Speech irregularities for young preschoolers that should not cause concern are: A. articulation errors B. additions in words C. distortions of sounds D. "articulation errors," "additions in words," and

asked Apr 14, 2024

1 answer

4 votes

94.7k views

Think about about situations that could be modeled with a linear equation you may encounter in everyday life, they could be similar to the example above. 1. Describe TWO situations that can be modeled

asked Jan 23, 2024

1 answer

2 votes

216k views

Which class of liquid lubricant is best suited for high temperature service, is fire resistant and resist sludge and oxidation? A) fixed oils B) synthetic oils C) mineral oils

asked Jan 8, 2024

1 answer

0 votes

141k views

Which of these are among the recommended sleep guidelines for teenagers? Select the two correct answers. A. Get at least nine hours of sleep every night. B. Get nine hours of sleep on weeknights only.

asked Nov 2, 2023

1 answer

15 votes

33.8k views

"smart" wifi devices which are equipped with more sensors, tend to use more energy or watts than old fashioned single contact devices. true or false?

asked Sep 11, 2023

1 answer

0 votes

29.5k views

Politically and economically, Japan's geography has made what a reoccurring policy throughout its history? Manorialism Capitalism Democracy Isolationism PLEASE HELP

asked Mar 15, 2023

2 answers

4 votes

116k views

What is the purpose of congressional investigations? Select all that apply (3 points) A: to investigate questionable actions by government officials B: The investigations bring information to the public.

asked Mar 6, 2023

1 answer

1 vote

138k views

write an equation of the line passing through the point (-6,-9) that is parallel to the line y= -3x - 7

asked Jan 17, 2023

2 answers

4 votes

34.2k views

Denise learned to sing a total of 10 pieces over the course of 10 weeks of voice lessons. After a short break, she learned 27 new pieces over the span of 27 weeks. How many vocal pieces does Denise learn

asked Jan 14, 2023

1 answer

11 votes

132k views

Which object is not accelerating? A A baseball player sliding into home base. B A blue Ford 150 pick-up truck speeding up from 50 mph to 80 mph. C A ladybug crawling forward at constant rate of 2.5 m/s.

asked Dec 7, 2022

1 answer

1 vote

176k views

18. Is this figure a polygon? Explain.

asked Sep 4, 2022

1 answer

5 votes

118k views

What group was portrayed as the villains of the movie - The Reformers or the Samurai?

asked Aug 8, 2022

1 answer

6 votes

151k views

Andy has a bath and uses 1500g of water heated from 10°c to 40°c and with a specific heat capacity of 4200j/kg°c how much energy does he use

asked May 24, 2022

1 answer

0 votes

62.3k views

What is the distance between ( − 5 , − 5 ) (−5,−5)left parenthesis, minus, 5, comma, minus, 5, right parenthesis and ( − 9 , − 2 ) (−9,−2)left parenthesis, minus, 9, comma, minus, 2, right parenthesis?

asked May 9, 2022

2 answers

2 votes

221k views

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