Questions by Istiak Morsalin

Questions by Istiak Morsalin

The sound emitted by bats has a wavelength of3.49mm. What is the frequency in air? The speed of sound in air is 343m/s.Answer in units of Hz.

asked Oct 27, 2023

1 answer

3 votes

130k views

Rewrite 14a5b + 7ab2 using a common factor. 7ab(2a5b + 7ab2) 7ab(2a4 + b) 14ab(2a4 + 7ab2) 21a5b(7 + 3ab2)

asked Jul 2, 2023

1 answer

3 votes

140k views

What statement best explains why the skin cell and intestinal epithelial cells are different?

asked Mar 22, 2023

1 answer

4 votes

15.0k views

In a second order lever system the force ratio is 2.5, the load is at the distance of 0.5m from the fulcrum find distance of effort if it losses are negligible

asked Aug 9, 2022

1 answer

4 votes

182k views

70° ? 127° 146° Can I get some help with this?

asked Jun 12, 2022

2 answers

4 votes

57.2k views

Ophie's total body fat is 30%, which places her in the healthy body fat range. Please select the best answer from the choices provided. T F

asked Apr 16, 2022

2 answers

5 votes

22.3k views

Why was President Abraham Lincoln killed?

asked Mar 21, 2022

2 answers

4 votes

64.4k views

When is there no atmospheric pressure pjysics.

asked Mar 18, 2022

1 answer

5 votes

104k views

Bananas cost $3 a bunch and apples cost $0.50 each. If b represents the number of bunches of bananas and a represents the number of apples, which of the following expressions represents the total cost?

asked Mar 11, 2022

1 answer

14 votes

131k views

Harry has a total of 90 coins. The coins are either dimes or quarters. If he has 40 quarters, what is the ratio of quarters to dimes? Give your answer as a ratio using a colon in the simplest form.

asked Oct 8, 2021

2 answers

0 votes

47.8k views

The Chinese concept of beauty supports all of these things as being beautiful EXCEPT...... avoiding sun so the skin stays fair having large eyes showing nice white teeth when smiling having delicate features

asked Aug 23, 2021

1 answer

3 votes

104k views

[10 points] Let v1, v2 and v3 be three linearly independent vectors in R 3 . (a) Find the rank of the matrix A = (v1 − v2) (v2 − v3) (v3 − v1) . (b) Find the rank of the matrix B = (v1 + v2) (v2 + v3)

asked May 26, 2021

1 answer

5 votes

50.5k views

The probability of obtaining a defective 10-year old widget is 66.6%. For our purposes, the random variable will be the number of items that must be tested before finding the first defective 10-year old

asked Feb 13, 2021

1 answer

5 votes

217k views

-3(x+5)=3(x-1) How to solve

asked Feb 12, 2021

1 answer

2 votes

190k views

If $9,400 is invested at an interest rate of 8% per year, find the value of the investment at the end of 5 years if interested is compounded annually (once a year), semiannually (twice a year), monthly

asked Oct 11, 2020

1 answer

2 votes

90.2k views

The sum of two numbers is 99, and one of them is 17 more than the other. What are the two numbers?

asked Oct 11, 2020

2 answers

5 votes

2.6k views

A man pushes a heavy cart with a force exerted of 250 Newtons to keep it moving at a constant velocity. What is the kinetic frictional force between the cart and the ground? Select one: 250 Newtons against

asked Mar 24, 2020

1 answer

3 votes

132k views

Search QAmmunity.org