Questions by Nihal

Questions by Nihal

Cesium-137 is part of the nuclear waste produced by uranium-235 fission. The half-life of cesium-137 is 30.2 years. How much time is required for the activity of a sample of cesium-137 to fall to 20.0

asked Dec 5, 2021

1 answer

3 votes

24.5k views

A fruit company has 20% returns in periods of normal rainfall and –3% returns in droughts. The probability of normal rainfall is 60% and droughts 40%. What would the fruit company’s expected returns be?

asked Nov 20, 2021

1 answer

3 votes

107k views

Claim The student hopes the samples are gold, which has a density of 19.3 g/cm3 . A local geologist suggested that samples might be pyrite, which is a mineral with a density of 5.01 g/cm3 . What is the

asked Nov 14, 2021

1 answer

3 votes

109k views

The three squares that will form a right triangle are ...?

asked Oct 27, 2021

1 answer

0 votes

69.7k views

What was often used for a centrepiece for food in medieval times?

asked Oct 10, 2021

2 answers

3 votes

220k views

Suppose that the quarterly sales levels among health care information systems companies are approximately normally distributed with a mean of 12 million dollars and a standard deviation of 1.2 million

asked Oct 6, 2021

1 answer

3 votes

60.2k views

3. Who are the makers of public policy? (branches and levels)

asked Aug 26, 2021

1 answer

4 votes

69.0k views

A 0.31-kg stone is held 1.4 m above the top edge of a water well and then dropped into it. The well has a depth of 4.9 m. (a) Taking y = 0 at the top edge of the well, what is the gravitational potential

asked Jun 9, 2021

1 answer

0 votes

233k views

20 POINTS!! HELP ME PLZZ I NEED HELP WITH THIS !!

asked Apr 26, 2021

2 answers

1 vote

3.9k views

What are the six bones found in all tetrapod legs

asked Apr 22, 2021

1 answer

4 votes

32.9k views

Abel has 3,330 toothpicks. He wants to use them all to make a floor mat with 18 equal rows. Use the bar diagram to write a division equation. Then solve the equation to find how many toothpicks Abel should

asked Aug 4, 2020

2 answers

1 vote

202k views

How many frost-free days are there in the northern latitudes

asked Jul 3, 2020

2 answers

5 votes

169k views

How did irrigation affect sumer

asked Jun 15, 2020

2 answers

4 votes

153k views

Match each behavior with a type of peer influence. A. Social exclusion Complimenting an action B. Positive reinforcement Not inviting someone out C. Emulation Doing what someone popular does

asked Sep 20, 2019

2 answers

3 votes

186k views

Is it true that: a) 27 belongs to natural numbers group? b) 2.7 doesn't belong to natural numbers group? c) 0 belongs to the integers group? d) -8 doesn't belong to the integers group? Please answer a-d

asked Jan 5, 2019

1 answer

2 votes

75.4k views

4. What affects the size of an angle? A. Its location B. The amount of rotation of one side C. The length of its sides D. The number of degrees in its supplement

asked Nov 27, 2018

1 answer

5 votes

22.5k views

PLEASE HELP! Ann is moving from Houston to McKinney and rented a truck from U-Move truck rentals. The cost of a one-day truck rental is given by C(m) = 0.6m + 20, where m is the number of miles driven.

asked Nov 9, 2018

1 answer

2 votes

126k views

a chalk board is marked up 150% from an original purchase cost of 80$ cara sold the chalkboard earning 14% commission on the sale price. how much commision did she make?

asked Sep 12, 2018

1 answer

4 votes

42.9k views

What do chemosynthetic bacteria convert into food? A. Salt or water B. Carbon dioxide and sunlight C. Carbon dioxide or methane D. Oxygen and sugar

asked Jul 15, 2018

2 answers

3 votes

133k views

Who became the tutor of Alexander the Great? A. Herodotus B. Socrates C. Plato D. Aristotle

asked Nov 12, 2017

2 answers

5 votes

175k views

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