Answer:
Length of the canal on the map is 16.4 centimeters.
Step-by-step explanation:
If actual length of Panama Canal = 20 kilometers
and length of the canal on map = 4 centimeters
Then scale factor = ![\frac{\text{Length of canal on map}}{\text{Actual length of canal}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BLength%20of%20canal%20on%20map%7D%7D%7B%5Ctext%7BActual%20length%20of%20canal%7D%7D)
= ![\frac{4}{20}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B20%7D)
= ![\frac{1}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%7D)
If the actual length of Panama Canal = 82 kilometers
Then the length of canal on the map = Actual length × Scale factor
= ![82\times \frac{1}{5}](https://tex.z-dn.net/?f=82%5Ctimes%20%5Cfrac%7B1%7D%7B5%7D)
= 16.4 centimeters
Therefore, length of the canal on the map is 16.4 centimeters.
Answer: 4
<u>Step-by-step explanation:</u>
Inversely proportional means xy = k, where k is the constant of proportionality
First, find k when x = 2 and y = 400 ----> 2(400) = k --> 800 = k
Then, find y when x = 200 (knowing that k = 800)
200y = 800
y = 4
Answer:
Option B and option D are true.
( B. 54.651 and D. 0.703 )
Step-by-step explanation:
<u>Precision:</u>
it is the accuracy (as in binary or decimal places) with which a number can be represented usually expressed in terms of the number of computer words available for representation.
Clearly from the given set of the numbers in the options i.e.:
A. 1,265 B. 54.651 C. 24.5 D. 0.703
We could observe that the number of digits after the decimals are equal in B and D options.
Hence the two numbers are precise at the same level.
Hence, option B and Option D are true.
( B. 54.651 and D. 0.703 )
Answer:
192.42 m²
Step-by-step explanation:
big circle
10.5 ² x pi =346.3605
inner circle
7 ² x pi = 153.9380
346.3605 - 153.9380 = 192.4225 (192.42)