The answer is D. 21 because your multiplying 3 and 7
Answer:
Step-by-step explanation:
(x+5)² = 36
x+ 5 = ±√36 = ±6
x = -5 ±6 = 1, -11
Answer:
Step-by-step explanation:
If two values are inversely proportional, their product must be maintained. That way, if one value goes up, the other goes down by the same extent.
Therefore, if and vary inversely, their product will be the same for all values of and .
Let and as given in the problem. Substitute values:
Hence, the maintained product is .
Thus, we have the following equation:
Substitute to find the value of when :
Answer:
$14.77
Step-by-step explanation:
Answer:
<h2>The value of a is
.</h2>
Step-by-step explanation:
At the time of purchase, the value of the antique is $200.
After one year the value will increase 10%.
Hence, after one year, the value of the antique will be = 220.
Similarly, after two year, the value will be .
Thus, 222 years after purchase, the value of the antique will be .