Answer:
1 cm
Step-by-step explanation:
To solve this problem we can use the Pythagorean theorem. In fact the diagonal of a rectangle is an hypotenuse of a right triangle, while the length is a leg. The width is the other leg
width = √2^2 - (√3)^2 = √4 - 3 = √1 = 1 cm
Hi there!
To find the median, list all the numbers in a least to greatest order then find the number in the middle. If there is an even number of numbers, find the mean (average) between the two numbers in the middle.
You are given 107, 114, 214, 230, 436, and 445. They are already in order from least to greatest. There is an even number of numbers (6), so find the two numbers in the middle.
214 and 230
Now find the mean between these numbers. To find the mean, add up both the numbers then divide by how many numbers you added up (2).
214 + 230 = 444
444 ÷ 2 = 222
The mean of the two numbers in the middle is 222. The median distance driven in the data is 222 miles.
Hope this helps!
Answer:
103/10
Step-by-step explanation:
Answer:
The incorrect statement is <em>A. Alpha and beta particles pose little or no hazard to human health.</em>
Step-by-step explanation:
Alpha particle - the nucleus of a helium atom, made up of two neutrons and two protons with a charge of +2. Certain radioactive nuclei emit alpha particles. Alpha particles generally carry more energy than gamma or beta particles, and deposit that energy very quickly while passing through tissue. Alpha particles can be stopped by a thin layer of light material, such as a sheet of paper, and cannot penetrate the outer, dead layer of skin. Therefore, they do not damage living tissue when outside the body. When alpha-emitting atoms are inhaled or swallowed, however, they are especially damaging because they transfer relatively large amounts of ionising energy to living cell.
Beta particles - electrons ejected from the nucleus of a decaying atom. Although they can be stopped by a thin sheet of aluminium, beta particles can penetrate the dead skin layer, potentially causing burns. They can pose a serious direct or external radiation threat and can be lethal depending on the amount received. They also pose a serious internal radiation threat if beta-emitting atoms are ingested or inhaled.
Therefore, <em>alpha and beta particles do pose affect the health of human beings.</em>
