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3 years ago

A congenital heart defect in which there is an opening between the two atria is abbreviated as a (n)

1 answer:

3 0

<span>That is known as PDA. PDA - Patent ducts arteriosus. PDA is a condition in which the ducts arteriosus does not close. The word "patent" means open. The ducts arteriosus is a blood vessel that allows blood to go around the baby's lungs before birth.</span>

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Differentiate 10sinxcosx

Harman [31]

Answer:

$10\,cos\,2x$

Explanation:

To differentiate: $10\,sinx\,\,cos x$

Solution:

Use product rule: $[f(x)g(x)]'=f'(x)g(x)+f(x)g'(x)$ and the following formulae:

$(sinx)'=cosx\,,\,(cosx)'=-sinx$

$(10\,sinx\,\,cos x)'=10[(sinx)'cosx+(sinx)(cosx)']\\\\=10[cosx\,cosx-sinx\,sinx]\\\\=10[cos^2x-sin^2x]$

Use $cos^2x-sin^2x=cos2x$

$(10\,sinx\,cosx)'=10\,cos2x$

8 0

2 years ago

All of the following are problems caused by burning coal, except

yan [13]

Answer:

D)radioactive waste is produced

Explanation:

Radioactive waste is a dangerous waste material which contains radioactive substances that are bad for health. These waste are produced in the nuclear reactor for the production of electric energy. Radioactive substances cause many diseases in human such as burning of skin and cancer. It is a non-biodegradable substance which remains in the soil for long periods of time and emit alpha, beta and gamma radiations.

5 0

2 years ago

Moraines are _____.

Lelechka [254]

The answer would be B. Unorganized deposits of rock and sediment. Hope this helps. :)

3 0

3 years ago

Read 2 more answers

PLEASE HELP ME WITH THIS QUESTION

melomori [17]

Answer:

the answer is b.

Explanation:

prokaryotes don't have organelles, like eukaryotes do.

4 0

2 years ago

The photograph below shows some plant cells as seen under a light microscope.

disa [49]

The picture from another source is attached

Answer:

Staining

Explanation:

In order to make cells or certain features of a cell more visible under the microscope, scientists use specific stains. These stains bind to certain features in a cell, allowing better distinction. For example, iodine is a common stain used in plant cells, as it turns blue/black in the presence of starch, which is abundant in plant cells.

8 0

2 years ago