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2n2 + 15n + 7
= 2n2 + n + 14n + 7
= (2n2 + n) + (14n + 7)
= n(2n + 1) + 7(2n + 1)
= (2n + 1)(n + 7)
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Evaluate each expression (7 -3)² plus (7 plus 1)²?
(7-3)^2 plus (7-1)^2 = 16+36
What is x plus 7 plus y?
x + 7 + y
How do you simplify 8k plus 2k plus 7?
8k +2k + 7 = 10k + 7
What is the explanation for 10x plus 7 plus 3x?
10x + 7 + 3x = 13x + 7
Calculate the following 7 - -2 equals?
A minus and a minus makes a plus A plus and a plus makes a plus A minus and a plus or plus and a minus makes a minus 7 - -2 is a minus and a minus Therefore the answer is 7 + 2 = 9
Does nitrogen have an equal number of protons and neutrons?
By far the most common isotope (99.634% of all nitrogen) of Nitrogen 14N has the same number, but there are other isotopes (eg 15N) which have a different number ( 15N has 8 neutrons and 7 protons).
How is 15N related to 14N (with regard to subatomic particles)?
N-15 has 8 neutrons and N-14 has 7 neutrons.
How many protons and neutrons in N-15?
The number after the "N", 15, is the mass number. The mass number is the sum of the number of protons and the number of neutrons. So, if you find a periodic table, you can find the atomic number, which is the same as the number of protons. Because the atomic number of nitrogen is 7, it has 7 protons. Then we take the mass number (protons + neutrons) and subtract the number of protons to find the number of neutrons. 15 - 7 = 8 neutrons in 15N.
What is 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 equals?
7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 or 7 x 14 = 98 Dont you have a calculator...?
What is 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7?
okay well the answer to that is 91 got it (PS. you should know it!) :) peace!
What is 7 over 15 as a percent?
first, you must set up a similarity statement: 7 over 15 (or 7/15) equals n over 100 (100 because that's what percentages are out of; everything's out of 100%). now, we're trying to find out how much out of 100; that's what n is. n is a space holder for now. so, we're solving for the variable, n. so, we set it up like this: 7 n __ = ___ 15 100 then, we cross multiply; this means, we multiply the numerator (the number on top of the fraction) by the denominator (the number on the bottom of the fraction) of the other fraction. so, we multiply the 7 by the 100, and the 15 by the n. 7x100=700. 15xn=15n. now, the 700=15n because the fractions were equal, so now the equation is equal. then you solve algebraically for n. we want n all alone on the one side, so we divide 15n by 15. what you do to one side must also be done to the other. 700=15n ÷15 ÷15 ________ <- that's the equal sign 46.6667 = n so, 47=n. the answer is 47%. so, a quick review, 7 n __ = ___ 15 100 7x100=700. 15xn=15n. 700=15n 700=15n ÷15 ÷15 ________ 46.6667 = n 47=n the answer is 47%.
If an atom contains 7 protons and 8 neutrons its atomic mass is?
The atomic mass of the isotope 15N is 15,000 108 898 2(7).
What is 3 plus 6 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 equals?
58.
What is 328 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7?
The answer is 380, I hope. :P
What is 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7?
7 + 7 + 7 + 7 + 7 + 7 + 7 or 7 X 7 = 49.
What is 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 plus 7 equals?
7+7+7+7+7+7+7+7 is the same as 7 multiplied by 8, so the answer is 56.
Is 7 plus 7 plus 7 plus 7 plus 7 plus 7 equals 42?
Yes.
