twilov2878
26.06.2019 •
Mathematics
How many solutions will this system of equations have? y = 3.5x − 3.5 y = −3.5x + 3.5
Solved
Show answers
More tips
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Mathematics
- M Mathematics If PTS ~ PQR, find the value of x....
- M Mathematics Plot a shows the number of hours ten girls watched television over a one-week period. plot b shows the number of hours ten boys watched television over the same period...
- M Mathematics Solve and check the fallowing system of equations algebraically x+y=5 plz Help Me...
- M Mathematics 1. the length of a high school soccer field is 45 yards longer than its width. using the variable w to represent the width, write an expression to represent the area of...
- M Mathematics A student earns $11.75 per hour for gardening. if she worked 21 hours this month, then how much did she earn? show work...
- E Engineering If you are convicted of D.U.I. a second time in five years, your license may be revoked for up to year/s. A. one B. two C. five...
- P Physics Rate this guy from 1-10 (height 178-180 cm)...
Ответ:
There is 1 solution (1,0)
Step-by-step explanation:
y = 3.5x − 3.5
y = −3.5x + 3.5
Add this system of equations together
y = 3.5x − 3.5
y = −3.5x + 3.5
2y = 0
y = 0
Substitute back in
0 = 3.5x - 3.5
Add 3.5 to each side
3.5 = 3.5x
Divide by 3.5
3.5/3.5 = 3.5x/3.5
1=x
There is 1 solution (1,0)
Ответ:
So: x + x = 15
2 x = 15
x = 15 : 2
x = 7.5°
Those congruent angles measure 7.5° or 7° 30``.