Questions by Yael Herrera Halley

Questions by Yael Herrera Halley

PLEASE HELP!!! The half life of carbon-11 is 20 minutes. A sample of carbon-11 has 25mCi. How much is left after 1 hour?* A)12.5mci B)10.2mCi C)2.25mci D)3.125mci

asked Aug 25, 2021

1 answer

3 votes

196k views

What is the probability of selecting a boy or a blonde-haired person from 12 girls, 5 of whom have blonde-haired and 15 boys, 6 of whom have blonde-haired

asked Jul 3, 2021

1 answer

0 votes

233k views

On Monday the temperature reads -23°F on Wednesday the temperature is -18°F what is the difference in temperatures

asked Mar 19, 2021

2 answers

5 votes

140k views

During the Trail of Tears, many American Indians were forced from their homes. Why is that?

asked Mar 2, 2021

1 answer

2 votes

37.9k views

Solve the following system of equations: y=x + 2 and y= 2x - 1

asked Jan 7, 2021

2 answers

5 votes

227 views

Population densities of the World: Number of people per square km. Any patterns?

asked Jan 4, 2021

1 answer

5 votes

58.0k views

ANSWER THE QUESTION MATCH THE LINES 1 MINUTE ON THE TIMER

asked Sep 16, 2020

2 answers

5 votes

129k views

Technological solutions have good and bad effects. What is a bad effect of spraying a chemical pesticide on crops

asked Sep 8, 2020

1 answer

2 votes

163k views

When large masses of magma solidify very slowly far below earths surface, they form igneous rocks that have a ___? A. Glassy textures B. Classic textures C. Fine-grained textures D. Coarse-grained textures

asked Aug 3, 2019

1 answer

4 votes

60.4k views

50 POINT QUESTION. ANSWER AND EXPLAIN HOW YOU GOT THE ANSWER. IF NOT, YOU GET REPORTED. THANK YOU VERY MUCH ! In the morning, a farm worker packed 3 pints of strawberries every 4 minutes. In the afternoon,

asked May 26, 2019

2 answers

2 votes

155k views

Which is the angle measure represented by 7.5 rotations clockwise?

asked Mar 7, 2019

2 answers

0 votes

51.9k views

A direct variation function contains the points (-9,-3) and (-12,-4). Which equation represents the function? y= -3x, y= -x/3, y= x/3, y= 3x

asked Jan 1, 2019

2 answers

5 votes

163k views

Mia sells t-shirts from a booth at a market. She pays $30 to rent the booth. Each t-shirt costs her $1.50 and she sells them $7.50 each her goal is to make $200 after she pays for her booth and t-shirts.

asked Dec 25, 2018

1 answer

0 votes

4.2k views

What were the issues behind the Missouri Compromise

asked Sep 11, 2018

1 answer

5 votes

115k views

What is45.31 × 27.64

asked Sep 1, 2018

1 answer

4 votes

198k views

What is the main way that political parties achieve their primary objectives

asked Jun 11, 2018

1 answer

2 votes

193k views

A/an ________ is a sudden and widespread outbreak of a disease within a population group or area

asked Feb 4, 2018

1 answer

3 votes

181k views

What is the least common multiple of 12, 20, and 18?

asked May 11, 2015

2 answers

4 votes

65.5k views

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