9514 1404 393
Answer:
11
Step-by-step explanation:
Put 3 where x is and do the arithmetic.
g(x) = x² +2
g(3) = 3² +2 = 9+2
g(3) = 11
Answer:
![\sf 500,000,000,000=5 \times 10^{11}](https://tex.z-dn.net/?f=%5Csf%20500%2C000%2C000%2C000%3D5%20%5Ctimes%2010%5E%7B11%7D)
![\sf 0.00000000005=5 \times 10^{-11}](https://tex.z-dn.net/?f=%5Csf%200.00000000005%3D5%20%5Ctimes%2010%5E%7B-11%7D)
Step-by-step explanation:
<u>Scientific notation</u>
where:
is any positive or negative <u>whole number</u>.
To convert a number into scientific notation, <u>move</u> the decimal point to the <u>left or right</u> until there is <u>one digit</u> to the left of the decimal point.
The number of times you have moved the decimal point is
.
- If the decimal point has moved to the <u>left</u>,
is positive. - If the decimal point has moved to the <u>right</u>,
is negative.
To convert 500,000,000,000 into scientific notation, move the decimal point <u>11 places to left</u>, so a = 5. As we have moved the decimal point 11 places to the left, the exponent "n" is 11 and is <u>positive</u>.
![\implies \sf 500,000,000,000=5 \times 10^{11}](https://tex.z-dn.net/?f=%5Cimplies%20%5Csf%20500%2C000%2C000%2C000%3D5%20%5Ctimes%2010%5E%7B11%7D)
To convert 0.00000000005 into scientific notation, move the decimal point <u>11 places to the right</u>, so a = 5. As we have moved the decimal point 11 places to the right , the exponent "n" is 11 and is <u>negative</u>.
![\implies \sf 0.00000000005=5 \times 10^{-11}](https://tex.z-dn.net/?f=%5Cimplies%20%5Csf%200.00000000005%3D5%20%5Ctimes%2010%5E%7B-11%7D)
Learn more about scientific notation here:
brainly.com/question/28235385
Answer:
192km^2
Step-by-step explanation:
Well there are 5 surfaces
1) The back one
10km*6km=60km^2
2) the square
(6km)^2=36km^2
3) the two triangles
2(6km*8km/2)=48km^2
4) the front one
6km*8km=48km^2
add all up and get
192km^2