Recent activity by Dennis Calla

Recent activity by Dennis Calla

a siliceous and akuminous material which, in itself, possesses little or no cementitious value but which will, in finely divided form and in the presence of water, react chemically with calcium hydroxide

asked Aug 14, 2024

1 answer 88.7k views

if equal volumes of 0.010 m pb(no3)2 and 0.010 m nacl are mixed, will pbcl2 precipitate out? (ksp of pbcl2

asked Jul 6, 2024

1 answer 165k views

A rectangle has a length pf 18 yards less than 4 times its width. if the area of the rectangle is 630 yards, find the length of the rectangle

answered Jun 25, 2024

1 answer 76.6k views

A researcher has conducted a survey using a simple random sample of 225 elementary teachers to create a confidence interval to estimate the proportion of elementary teachers favoring the addition of a

asked May 4, 2024

1 answer 205k views

After reading "The Turmoil," what is the meaning of "burghers" in paragraph 3? A) Residents of a medieval town B) Owners of large industrial businesses C) Skilled craftsmen D) Farmers in a rural community

asked Mar 17, 2024

1 answer 13.2k views

If M<1 = 140 what is M <4

answered Feb 22, 2024

1 answer 26.5k views

Jose paid $1.12 for a dozen eggs at his local grocery store. Determine the cost of 18 eggs.

answered Dec 23, 2023

1 answer 140k views

Question 5 Megan spent one-fourth as much as Hannah, who spent d dollars. Emily spent ten dollars more than Megan. Kyle spent three dollars less than Emily. Which expression represents the amount Kyle

answered Dec 17, 2023

1 answer 157k views

Jerry is mowing his lawn.It takes him 1/6 of an hour to mow 3/20 of his yard. What proportion of the yard does jerry mow per hour

answered Nov 27, 2023

1 answer 49.3k views

What are the benefits of giving one leader total control?

answered Nov 21, 2023

1 answer 212k views

Solve for x: 10x – 3 + x < 30

answered Oct 12, 2023

2 answers 27.0k views

Each side of a square painting is 4 feet long. A frame shop charges $2.87 per foot for a metalframe. How much would it cost to buy a frame for the painting?

asked Sep 22, 2023

1 answer 133k views

Jack and Ross finish floors together. Jack working alone could complete a particular job in 6.4 hours, and Ross could complete it alone in 5.9 hours. How long does it take to complete the job when they

asked Jun 19, 2023

2 answers 191k views

A tabletop in the shape of a trapezoid has an area of 6,943 square centimeters. Its longer base measures 127 centimeters, and the shorter base is 85 centimeters. What is the height? The height of the tabletop

asked Jun 4, 2023

1 answer 113k views

Derive an equation which will give a minimum detectable fractional change in osteopototic bone, assuming,for simplicity a monenerget beam of incident photon.

answered Mar 4, 2023

1 answer 16.6k views

A track runner getting off the starting block first means he/she has good:

answered Feb 18, 2023

1 answer 132k views

How is the crucible unlike the salem witch trials?

asked Dec 28, 2022

2 answers 215k views

Name two differences between a monocot and a dicot.

asked Dec 2, 2022

1 answer 5.6k views

Using the map, where did the candidate who won the most electoral votes finish in the House vote?

asked Sep 24, 2022

2 answers 101k views

How much does 9.45 kg equal grams

asked Sep 16, 2022

2 answers 207k views

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