A club swimming pool is 29 ft wide and 43 ft long. the club members want an exposed aggregate border in a strip of uniform width
1 answer:
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Answer:
See below.
Step-by-step explanation:
Let's let our first integer be n.
Then, our second, consecutive integer must be (n+1).
We want to prove that the sum of the square of two consecutive integers is always odd.
So, let's square our two expressions and add them up:
Square. Use the perfect square trinomial pattern. So:
Combine like terms:
Notice that the first term 2n² has a 2 in front. Anything multiplied by 2 is even. So, regardless of what integer n is, 2n² is <em>always</em> even.
Our second term 2n also has a 2 in front. So, whatever n is, 2n is also <em>always</em> even.
So far, 2n² and 2n are both even. Therefore, the sum of 2n² and 2n is <em>also </em>even.
Lastly, we have the constant term 1. It doesn't matter what n is, we know that (2n² + 2n) is definitely and is always even. So, if we add 1 to this, we will get an odd number.
Q.E.D.
Answer:
The total weight of 400 pumpkin seeds is 2.24 ounces.
Step-by-step explanation:
Total number of seeds counted in the pumpkin = 400
Weight of 10 seeds = 0.056 ounces
So, the weight of 1 seed =
=
⇒ The weight of 1 pumpkin seed = 0.0056 ounce
Now, the weight of such 400 seeds = 400 x (weight of 1 seed)
= 400 x ( 0.0056 o.) = 2.24 ounces
Hence, the total weight of 400 pumpkin seeds is 2.24 ounces.