![devikapal101](/avatars/41215.jpg)
devikapal101
07.05.2021 •
Mathematics
Given cot A= -7/3 and that angle A is in Quadrant II, find the exact value of cos A in simplest radical form using a rational denominator.
Solved
Show answers
More tips
- G Goods and services Kogda zhdatt Iphone 5? The Latest News and Rumors...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
Answers on questions: Mathematics
- M Mathematics Choose the table which contains the best values of x for finding the requested limit of the given function. (equation and answer choices below) limx→0 (sin 2x/x)...
- M Mathematics The graphs of triangle tri and its image are shown below. triangle tri is translated horizontally and vertically, resulting in its image, triangle t r i . use the vertices...
- M Mathematics If the area of the following parallelogram is 135 square feet, what is the length of the base? 9 ft 27 ft 675 ft 81 ft...
- M Mathematics Julia 2 identical rooms in her house.if each room measures 8 feet on another , what is the total area of the rooms...
- M Mathematics Apoint at (3, 5) is reflected across the y-axis. what is the distance of this new point from the y-axis? explain how you know....
- M Mathematics Use the information presented in the scenario and the drop-down menus to answer these questions, ed s revenue from selling his most popular arrangement is ed s total production...
- M Mathematics Witch triangle is a 30 -60 -90 triangle...
- M Mathematics What is 5 1/3 - 2 1/4 reduced to lowest term...
- M Mathematics If x= yand y=z, which statement must be true?...
- M Mathematics Which expression is equivalent to 2x2 - 2x + 7? - (4x+12) + (2x2–6x+5)• (x2–5x+13)+(x2 +3x-6). (4x? -6x+ 11 ) + (2x² - 4x+4)(5x® – 8x+120) + (-3x2 + 10x= 13)...
Ответ:
(x-2) ( x+2) ( 2x + 5)
Step-by-step explanation:
We will factor the given expression by grouping
The expression is 2x³ + 5x² - 8x - 20
= ( 2x³ + 5x² ) - ( 8x + 20 )
= x² (2x + 5) - 4(2x + 5) [ distributive property ]
= (a² -4) ( 2x + 5)
= (x-2) (x+2) (2x+5) [since a² - b² = ( a+b ) (a-b) ]
Then the factored form of the expression will be (x-2) ( x+2) ( 2x + 5)