Answer:
Step-by-step explanation:--0.9
Like any other polynomial, you judge the number of solutions by the highest degree of the polynomial. This is a second degree polynomial so it has 2 solutions. They are x = +[sqrt(cos x)] and x = - [sqrt(cos x)]. If you graph those on a calculator the positive portion of the graph is above the x axis and the negative portion is below the x axis. It's really cool looking. You should graph it to see.
The discount of 15% is $149.25 ,you now only have to pay $845.75.
Answer: 134,061.9 dollar and 118,222.45 lb
To answer this question you need to convert each unit.
First, 1 dollar equal to 100 pennies. That mean the equation would be: <span>13,406,190 pennies x 1 dollar/100 pennies = 134,061.9 dollar
Each penny weight 4 grams and 1 lb equal to </span>453.592grams. Then the equation would be:
13,406,190 pennies x 4 grams/pennies x 1lb/453.592 grams= 118,222.45 lb