Sign In
Ask Question
Micaela Kane
Mathematics
11 March, 22:28
Solve 5r2 - 12 = 68. {±4} {±5} {±3} {±6}
+4
Answers (
2
)
Shyla Mayo
11 March, 22:44
0
Add 12 to both sides:
5r^2 = 80
Divide by 5:
r^2 = 16
Square root both sides:
r = + / - 4
The answer is {+ / - 4}.
Comment
Complaint
Link
Alexander Garcia
11 March, 22:45
0
5r2-12=68
+12 + 12
5r2 = 80
-80
5r2 - 80 = 0
:5 : 5 : 5
r2 - 16 = 0
+16 + 16
r2 = 16
root: r2 = root: 16
r = {+ / - 4}
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“Solve 5r2 - 12 = 68. {±4} {±5} {±3} {±6} ...”
in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Taylor earns $5 each time she walks her neighbor's dog. She has already earned $25. Write and solve an equation to find out how many times Taylor needs to walk the dog to earn enough to buy a bike that costs $83.
Answers (1)
How many ways can I get 26 using tens and ones?
Answers (1)
What are the consecutive intergers of 2
Answers (2)
6. Use the Law of Detachment and the Law of Syllogism to draw a conclusion from the following true statements. If you have an income, then you must pay taxes. If you have a job, then you have an income. You work as a cashier in a convenience store.
Answers (1)
120 is 160% of what number?
Answers (2)
New Questions in Mathematics
A fruit salad contains 25 blueberries and 20 raspberries. What is the ratio of blueberries to raspberries in the fruit salad? A. 4:9 B. 5:4 C. 4:5 D. 5:9
Answers (2)
a school art teacher designs a circular flower bed inside a rectangular sandbox the sandbox is 6 feet wide and 10 feet long how many square feet will there be for sand after the flower bed is installed? us 3.14
Answers (1)
Given f (x) = - 15x - 13, find x when f (x) = - 28.
Answers (1)
Tickets of a program at college cost $4 for general admission or $3 with a student ID. If 180 people paid to see a performance and $613 was collected, how many of each type of ticket were sold?
Answers (1)
If you select 10 Sundays from the school year at random, is likely to have studied the most hours overall, and is likely to have studied the least hours overall. NextReset
Answers (1)
Home
»
Mathematics
» Solve 5r2 - 12 = 68. {±4} {±5} {±3} {±6}
Sign In
Sign Up
Forgot Password?