![aladuke79](/avatars/33047.jpg)
aladuke79
29.07.2020 •
Mathematics
Driving on the highway, you can safely drive 70 miles per hour. “How far can you drive in ‘h’ hours?” What is the domain of the function which defines this situation?
A. The amount of gas you use
B. 70
C. The number of hours you drive
D. the distance you drive
Solved
Show answers
More tips
- W Work and Career How to Start Your Own Business: Tips and Recommendations...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- 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 Aplaygroud has a lenght of 40 ft permermter of 120 ft...
- M Mathematics What values of a and b make the equation true? √648 = √2a.3b...
- M Mathematics What is another way to name plane p?...
- M Mathematics What s 3/6-4/6 and simply your answer...
- M Mathematics Based only on the giving information , it is garunteed that side ab and side cd...
- M Mathematics Write the rule for the table below me...
- M Mathematics The reyes family boght four concert tickets for 252 dollars...
- M Mathematics How do you round 28.26 to the nearest square foot...
- M Mathematics Can someone plz laura is currently paying off her four-year car financing. when she purchased her car, it had a list price of $19,858. laura traded in her previous car, a good-condition...
- M Mathematics Which expression has the most number of significant figures? a. 190 b. 1.8 c. 26 d. 206...
Ответ:
C. The number of hours you drive
Hope this helps and pls mark as brainliest : )
Ответ:
x = ±sqrt(10)
step-by-step explanation:
5 - 2x² = -15
subtract 5 from each side
5-5 - 2x² = -15-5
-2x^2 = -20
divide by -2 on each side
-2x^2 /-2= -20/-2
x^2 =10
take the square root on each side
sqrt(x^2 )=±sqrt(10)
x = ±sqrt(10)
check:
5 - 2x² = -15
+sqrt(10)
5 - 2(sqrt(10))² = -15
5 -2(10) = -15
5 -20 = -15
-15 = -15
-sqrt(10)
5 - 2(-sqrt(10))² = -15
5 -2(10) = -15
5 -20 = -15
-15 = -15