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Math Questions and Answers (Q&A)

How much time elapses before the two cars collide?
H. Barnes, Unemployed
Answered: Feb 26, 2019
The correct answer to this question is If two cars are 400 meters apart and a collision occurs while one is traveling east at 30 meters per second and the other is traveling west at 20 meters per...Read More

3 Answers

1433 views
Which of the following is not a profitability ratio?
Mablair_assoc
Answered: Oct 22, 2020
A: Price/earnings ratio.

A. Answer A is correct. The price/earnings ratio is a market ratio. It is calculated by dividing the price of a share of stock by earnings per share. B. Answer B...Read More

1 Answer

1260 views
What is the width of the central maximum (in cm) in the diffraction pattern on a screen 5.0m away from a single slit 1.00mm wide which is illuminated by 450nm light?
Danny R. Glover, Editor
Answered: Aug 29, 2018
The width is 0.45 cm. The width of the central max is inversely proportional to the slit’s width. The central maximum is known to be the area wherein the light is the most intense and the...Read More

2 Answers

1251 views
What is a financial intermediary?
Mablair_assoc
Answered: Oct 22, 2020
D: A commercial business.

A. Answer A is incorrect. A commercial bank is a financial intermediary. B. Answer B is incorrect. A mutual fund is a financial intermediary. C. Answer C is...Read More

1 Answer

1199 views
How many legs do 4 cats, 6 people, and 3 dogs have?
M. Porter, Senior Executive
Answered: Apr 18, 2019
The correct answer to this question is 40. This answer is found by adding together the amount of legs per animal and person. Cats have four legs, so four multiplied by four equals 16. Humans have...Read More

3 Answers

871 views
How much is 3 eights?
Christineopperman
Answered: Oct 22, 2020
24

1 Answer

754 views
What is the difference between Ascending and Descending?
A. Boaz, Mechanical Engineer
Answered: Oct 08, 2019
Ascending and Descending are antonyms. This shows that whatever meaning you have for ascending; the opposite will be descending. These two words are used mostly in mathematics or any subject area...Read More

3 Answers

732 views
How many eggs are 2 dozen eggs?
Cschuck
Answered: Oct 22, 2020
24

1 Answer

633 views
What is the measure of angle AMC?
Danny R. Glover, Editor
Answered: Oct 10, 2018
Take note that this is an isosceles triangle. This means that the A and C angles are the same with each other. These angles are equal to 70 Degrees. To solve this, start with 180 Degrees then...Read More

3 Answers

553 views
How many lines per centimeter does a grating have if the third-order occurs at an 18.0 degree angle for 630 nm light?
Samantha Stewart, Philanthropist
Answered: Dec 14, 2018
I will be honest, this is very out of my wheelhouse. However, after reading the last answer on this question: it’s still very out of my wheelhouse. So, I will attempt to answer. This is a...Read More

3 Answers

533 views
What angle will 560-nm light produce a second-order maximum when falling on a grating whose slits are 1.45 X 10^-3 cm apart?
John Smith
Answered: Oct 22, 2020
4.4 degrees

Solution to a similar question is given on the diffraction grating sample problems section on the website.

1 Answer

504 views
How many total fish did he catch all 3 days?
Matz Lewis Clark, College student
Answered: Jan 29, 2019
The correct answer to this question is 63. To answer this question, start with the data you are given. On Saturday, Jack caught 14 fish. He caught twice as many fish on Sunday, so take 14 times 2...Read More

3 Answers

502 views
What number comes just before 7 tens?
Mishrashubham
Answered: Oct 22, 2020
69

1 Answer

472 views
Which expression shows 3 less than x?
Mrsmosher
Answered: Oct 22, 2020
X − 3

1 Answer

470 views
How many more of each color does Dana need to buy?
C. Perez, Writer
Answered: Apr 24, 2019
The correct answer to this question is $53.30. Being that she needs equal amounts, she needs 75 of each color.
She already has 32 red, so that leaves 43 more that she needs : costs...Read More

2 Answers

444 views

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