![drecooks713](/avatars/40572.jpg)
drecooks713
06.11.2019 •
Mathematics
:what does x equal? 4(5x - 20) = -20
Solved
Show answers
More tips
- P Philosophy Is Everything We Strive for Eventually Achieved and Destroyed?...
- S Sport How to Learn Swimming? Simple Tips for Beginners...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
Answers on questions: Mathematics
- M Mathematics The circle above has an area of 36 in2. what is the area of the blue sector? use 3.14 for ....
- M Mathematics Please help me! Organize your data and find the rate of change. Create a table of the measurements for your data. Label the forearm measurements as your input and the...
- M Mathematics One a penny 2 a penny compleat the question to get a brainlest!! xD (pls no report)...
- M Mathematics One roll of astroturf will cover 150 square feet. find how many rolls should be purchased to cover a lawn that is 22 ft. x 31 ft.?...
- M Mathematics Also need help! will be mark as brainliest!...
- A Advanced Placement (AP) Arubric shows the percent of correct answers required to achieve a certain grade. true or false?...
- C Chemistry March Earth s orbit no longer tilted on its axis Equator stopped rotating on its axis June 3. Sun took an additional month to orbit the sun December revolved around the...
Ответ:
Use distributive property
20x-80=-20
Add 80 to both sides
20x=60
Divide 20 on both sides
Final x=3
Ответ:
A. The degree of the function is at least 4
B. At least 3 positive real zeros
Step-by-step explanation:
From the table we can see that the value of the polynomial function is first negative, then positive (1 intersection with x-axis), then again negative (second intersection with x-axis), then again positive (third intersection with x-axis), and at last again negative (fourth intersection with x-axis).
The point of intersection with x-axis corresponds to the zero of the function (f(x)=0). Since the graph of the function intersects 4 times the x-axis, the degree of the polynomial function is at least 4.
the first point of intersection with x-axis has negative x-coordinate. All other points have positive x-coordinates. This means the function has zt least 3 positive real zeros.