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nikitadnepr [17]
2 years ago
11

the element born has two stable isotopes.boron-10 has an atomic mass of 10.0129 and a percentage in nature of 19.78% the atomic

mass of boron-11 is 11.0093 and its percentage in nature is 80.22% what is the average atomic mass for boron?
Mathematics
1 answer:
kaheart [24]2 years ago
6 0

Answer:

sjsjksksskkskkskskdndssk

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Baby Amelia's parents measure her height every month.
jonny [76]

The statement H(30) = H(25) + 5 means that, "when Amelia was 30 months old, she was 5 centimeters taller than when she was 25 months old"

<h3><u>Solution:</u></h3>

Given that,

Baby Amelia's parents measure her height every month

It is given that H(t) models Amelia's height (in centimeters) when she was "t" months old

Given statement is H(30) = H(25) + 5

So, we can say that H(30) = Amelia's height when she was 30 months old

H(25) = Amelia's height when she was 25 months old

So H(30) = H(25) + 5 means that,

Height of Amelia when she was 30 months old is 5 centimeter more than Amelia height when she was 25 years old

Or we can say that,

When Amelia was 30 months old, she was 5 centimeters taller than when she was 25 months old

7 0
3 years ago
Which of the following is a rational number?<br><br> a)10<br> b)100<br> c)1000<br> d)100000
earnstyle [38]

Answer:

All of the above

Step-by-step explanation:

10, 100, 1000, 100000 all are rational numbers because you can write them as:

10/1 , 100/1, 1000/1, 100000/1

7 0
2 years ago
What is the answer of:<br> z^2 - 4z^2
Novosadov [1.4K]
z^2 - 4 z^2

z - 4z

= - 3 z^2

hope this helps!.
4 0
2 years ago
What is d?<br> 2/3 x d = 40
lys-0071 [83]

Answer:

60

Step-by-step explanation:

2/3*d=40

d=40*3/2

d=60

3 0
3 years ago
What is 16.748 rounded to nearest hundredths
DIA [1.3K]

Answer:

16.75

Step-by-step explanation:

The number 4 in 16.748 is in the hundredths place.

The number right behind it is 8, which is greater than or equal to 5...

...meaning that it should round up! Not stay the same.

7 0
3 years ago
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