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nekit [7.7K]
2 years ago
6

Which of the following represents an elementA O 2B H2OC CO2D NO2​

Mathematics
2 answers:
nataly862011 [7]2 years ago
8 0

Answer:

I believe the answer is O2

liberstina [14]2 years ago
3 0

Answer:

A. Correct

B. Incorrect

C. Incorrect

D. Incorrect

Step-by-step explanation:

B, C, and D are compounds rather than elements

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Choose the correct slope of the line that passes through the points (1, −3) and (3, −5). I NEED HELP ASAP
Degger [83]
The slope would be:
-5--3/3-1
-2/2
-1

Slope = -1
6 0
3 years ago
I need help :( i don't understand this
maria [59]
Answer: 116.93ft^2




Explanation: find the area of the circle
A= pi•r^2
A=(3.14)•1.5^2= 7.07

Then find the area of the rectangle
A=L•W
A=15.5•8=124

Then do 124-7.07=116.93

You have to subtract the area of the circle from the area of the rectangle because the circle is not shaded in
4 0
3 years ago
Solve R=M + B, for B.
musickatia [10]

Answer:

B = R - M

Step-by-step explanation:

1. R = M + B       Subtract M

2.  R - M = B

8 0
3 years ago
During two years, the population of birds of an island became 7 times more than before. If the first year increase in the popula
9966 [12]

The percent increase of the second year was 85.71%

Step-by-step explanation:

The exponential growth formula is y=a(1+r)^x

where;

y=population after x years

a=original population

r=growth rate as a decimal

x=number of time interval that have passed

Let starting population be p

The first year increase in the population was 40% this means;

r=0.4 , x=1 and a=p thus the equation will be

y=p(1+0.4)^1 ⇒⇒y=1.4 p

In the second year the population of birds of an island became 7 times more than before which is 7p

7p= 7*1.4p= 9.8p

Increase will be;

9.8p-1.4p=8.4

% increase will be;

8.4/9.8 *100 =85.71%

Learn More

Percent increase: brainly.com/question/13882170

Keywords : population, birds, island,increase

#LearnwithBrainly

5 0
3 years ago
The dimensions of the nations smallest post office are 8 feet 4 inches by 7 feet 3 inches why would you use the measurement 8 fe
viva [34]

Answer:

Because 16 inches is one foot and 4 inches, as there are 12 inches in a foot. So this one foot is added to the 7 inches. Or otherwise we can say: a hundred inches (100 in).

Step-by-step explanation:

If we tell the length in feet, only the rest of the integer number of feet is expressed in inches.

4 0
3 years ago
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