3x-18 is less than -90
First, you add 18 to both sides of the inequality (getting 3x is less than -72). Then you divide by 3 on both sides giving you your answer x is less than -24
Answer:
sec x = √10 /3
Step-by-step explanation:
tanx = 1/3
tan²x = (1/3)²
= 1/9
Trigonometric identity
sec²x - tan²x = 1
sec²x = 1 + tan²x
sec²x = 1 + 1/9
= 10/9
Now, sec x = √(10/9)
= √10 / 3
Hope this answer helps you....
Given the markup of 75%, the selling price of the item became:
Cost×(1+Markup)=selling price
the initial price of the house will therefore be:
C×(1+0.75)=350
1.75C=350
C=350/1.75
C=$200
therefore the initial selling price was $200. Given that after the markup price was later reduced by 20%, the new price became:
80/100×350
=$280
If the price was later reduced by 30% the new price was:
70/100×280
=$196
From this final price we see that if the original price was $200 and the selling price is now $196, then the item is actually selling at lose.<span />
You have the starting price of $1.99. To get the increased price, divide 1.99 by .56 (.56 is the decimal form of 56%). You would get $3.55. This is for the year 2007. So for 2008, divide 3.55 by .42. The answer is $8.45. You can check the answers by multiplying the answers you go the the percentage. Ex. 8.45* .42=3.55 (rounded)