<span>Suppose an investment of $8200 doubles in value every 7 years. how much is the investment worth after 28 years
131,200</span>
Answer:
Step-by-step explanation:
slope is -60
it's the rate of change... in the distance to the destination
Answer:
y=8
Step-by-step explanation:
if y = -x +7
then
y= 1 + 7 cause we know x = -1 so negative x is 1
so 1+7=8
so y = 8
hope this helped :)
<span>Question :Why is it that any number raised to the power zero is equal to 1 and not zero ?
<span>
Answer :</span><span>When a number is raise to the power 0, we are not actually multiplying the particular number by 0. For example, let us take 20. In this case we are not actually multiplying the number 2 by 0.
We define 20 = 1, so that each power of 2 is one factor of 2 larger than the last, e.g., 1,2,4,8,16,32...</span><span>This involves the rules of exponents particularly division.
If a is a number and x and y are also numbers, then according to the rule of division for powers with the same base,
a^x/a^y = a^(x - y).
It says the quotient of two powers with the same base is equal to the common base raise to the exponent equal to the difference between x and y.
So, if x = y, then a^x/a^y = a^(x -y) = a^0
But a^x is equal to a^y, since x = y; hence a^x/a^y = 1
Therefore, by Transitive property of Equality,
a^0 = 1
Thus, this result says that number raised to the power zero is equal to 1.</span></span>
<h3>Answer: 2.25</h3>
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Explanation:
Multiply the values in the second and third columns. Do this row by row.
Row1: 3*20 = 60
Row2: 2*12 = 24
Row3: 1*6 = 6
Row4: 0*2 = 0
Add up the products to get 60+24+6+0 = 90
Then divide this by the total frequency 20+12+6+2 = 40 to get 90/40 = 2.25