Answer:
c
Step-by-step explanation:
Given that:
since cos (kπ) = 
Then, the series can be expressed as:
In the sum of an alternating series, the best bound on the remainder for the approximation is related to its 
term.
∴
The value of a would be 3.5, as a=1 when b=10 means that a is worth 1/10 of b's value.
Answer:
Step-by-step explanation:relax and claculate in ur mine
Answer:
$31.80
Step-by-step explanation:
The ball will cost 100% of its price plus 6% of its price for a total of 106%.
To use percentages as a factor and multiply, they must be divide by 100, making the multiplication factor version of 106% 1.06.
Multiply the cost of the ball by your multiplication factor:
30 x 1.06 = 31.8
Money is written to two decimal places, making your answer $31.80
<span>In
2005, the price of a TV was $1599.00.
In 2002, the price of the same type of tv has dropped to $399.00
Let’s Calculate the percent of decrease.
First subtract 1599 dollars with 399 dollars to know how much did the price of
TV decreased.
=> 1 599 – 399 = 1 200 is the amount the decreased on TV’s price
=> 1 200 / 1599 = 0.75
=> 0.75 * 100% = 75%
Thus, the price of TV had been decreased to 25%, 75% of it were decreased</span>
