20 x 42= 840
So the area would be 840 mm^2.
The length of the line segment using the percentage are as follows:
25% length = 1 cm
50% length = 2cm
100% length = 4 cm
75% length = 3 cm
<h3>How to find length with the percentage?</h3>
The line segment 8 cm is 200% . This means it is double of 100%.
Therefore the length can be calculated using the percentage as follows;
100% length = 8 / 2 = 4 cm
Hence,
75% length = 75 / 100 × 4 = 3 cm
Hence,
25% length = 25 / 100 × 4 = 1 cm
50% length = 50 / 100 × 4 = 2cm
learn more on percentage here: brainly.com/question/13150107
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<span>Since charged particles cannot move across the membrane easily due to them being hydrophobic, they require a transport protein that expends energy in the form of ATP. ATP attaches onto the transport protein which changes the shape of the protein allowing ions to flow in, and it leaves a phosphate group turning into ADP.When the molecule has crossed the membrane, the phosphate group is detached from the protein.</span>
Answer:
The probability that they were born in different months is 
Step-by-step explanation:
Total number of ways = 12
Number of ways of the first person = 12
So, probability for the first person is 
Now, the number of ways for the second person = 11
So, the probability for him = 
Similarly, the probabilities for third, fourth and fifth persons are:
Hence, the total number of ways = 
