To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
Rewrite it in the form; a^2 - b^2, where a = 5x and b = 6
(5x)^2 - 6^2
Use the Difference of Squares: a^2 - b^2 = (a + b)(a - b)
<u>(5x + 6)(5x - 6) </u>
4 * 1,000,000,000 = 4,000,000,000
5 * 1,000,000 = 5,000,000
9 * 10,000 = 90,000
8 * 100 = 800
7 * 1 = 7
put it all together
4,005,090,807
Option D.)
Hope this helps
The speed of the boat will be 10 mph in still water
Answer:
<h3>
$ 
</h3>
Step-by-step explanation:
Price of stock bought = $ 59
% rise = 13%
Price of stock rise :
⇒
⇒
⇒$ 
New price is 13% more than $ 59
Hence, New price = $ 57 + $ 7.67
= $ 66.67
Hope I helped!
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