2 years ago

How many days the average menstrual cycle lastas

1 answer:

5 0

A cycle is counted from the first day of 1 period to the first day of the next period. The average menstrual cycle is 28 days long. Cycles can range anywhere from 21 to 35 days in adults and from 21 to 45 days in young teens.

You might be interested in

could you please explain operations with scientific notation using this example. 5 × 10³ + 4.3 × 10⁴ i dont understand how to so

TEA [102]

Explanation:

The scientific notation:

$a\times10^k$

where

$1\leq a$ and k is integer.

We have the example:

$(5\times10^3)+(4.3\times10^4)$

You can write the numbers in a "normal" form:

$5\times10^3=5\times1000=5000\\\\4.3\times10^4=4.3\times10000=43000$

Make the sum:

$5000+43000=48000$

And next write it in the scientific notation:

$48000=4\underbrace{8000}_{\leftarrow4}=4.8000\times10000=4.8\times10^4$

<h3>Other method:</h3>

You can add numbers in scientific notation if the power of tens in both number is the same.

Therefore you must convert the first number:

$5\times10^3=0.5\times10\times10^3=0.5\times10^4$

Now, you can make the sum:

$(5\times10^3)+(4.3\times10^4)=0.5\times10^4+4.3\times10^4=(0.5+4.3)\times10^4=4.8\times10^4$

4 0

2 years ago

In a chemical change molecules DO NOT create or break chemical bonds to form a new substance you might be able to observe a chem

vesna_86 [32]

Answer:

false

Explanation:

3 0

2 years ago

How many molecules are in 2.64 moles of Na2O?

Alex_Xolod [135]

bwhriwnwanhshsiwkwq

7 0

2 years ago

Which of the following terms describes carbon tetrachloride?(CCI4)

garri49 [273]

The Answer is C.Compound

5 0

2 years ago

Read 2 more answers

What is Fe + O2 → Fe2O3 balanced?

ikadub [295]

4 Fe(s) + 3 O2(g) = 2 Fe2O3(s)
That is what it would be balanced, hope this helped

3 0

2 years ago