Answer:
Explanations:
a) The scientific notation is generally expressed as;
A is any real numbers between 1 and 10
n is an integer
Given that the total surface area of North America is 9,540,000 square miles. This is expressed in scientific form as;
From the scientific notation, A = 9.54 and n = 6
b) Given the scientific notation as shown:
Writing in standard form means writing in the normal way we write numbers/decimals. Hence;
C because it’s the only one that makes sense could be B tho
10*10*10*10=10000
Square root of 121 is 11
3*3*3=27
4 to the power of 0=1
10000-11+27+1=10017
To solve for y we have to use the INVERSE OPERATION of addition which is subtraction Lets do it:-
y + 17 = 21
y = ?
21 - 17 = y
21 - 17 = 4
y = 4
CHECK OUR WORK:-
y + 17 = 21
y = 4
4 + 17 = ?
4 +17 = 21
We were RIGHT!!!!
So, y = 4.
Hope i helped ya!! xD
Three ways are:
<u>In Fraction Form:</u> 
<u>In Ratio its</u>: What you said
7:30 And
In a Percent Form Its:
0.23- %(I got that from dividing 7 by 30.)
Hope IT helped You. :D
