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 Higher roots

a n n is called the index of the radical.

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Questions & Answers
how to reduced echelon form
Jazmine trained for 3 hours on Saturday. She ran 8 miles and then biked 24 miles. Her biking speed is 4 mph faster than her running speed. What is her running speed?
d=r×t
the equation would be 8/r+24/r+4=3
worked out
Sheirtina
find the solution to the following functions, check your solutions by substitution. f(x)=x^217x+72
Aziza is solving this equation2(1+x)=4x+10
No. 3^32 1 has exactly two divisors greater than 75 and less than 85 what is their product?
x^2+7x19=0 has Two solutions A and B give your answer to 3 decimal places
please the answer to the example exercise
3. When Jenna spent 10 minutes on the elliptical trainer and then did circuit training for20 minutes, her fitness app says she burned 278 calories. When she spent 20 minutes onthe elliptical trainer and 30 minutes circuit training she burned 473 calories. How manycalories does she burn for each minute on the elliptical trainer? How many calories doesshe burn for each minute of circuit training?
John left his house in Irvine at 8:35 am to drive to a meeting in Los Angeles, 45 miles away. He arrived at the meeting at 9:50. At 3:30 pm, he left the meeting and drove home. He arrived home at 5:18.
p2/3=5/6 how do I solve it with explanation pls
don't understand answer
Cindy
is y=7/5 a solution of 5y+3=10y4
don't understand answer
Cindy
Lucinda has a pocketful of dimes and quarters with a value of $6.20. The number of dimes is 18 more than 3 times the number of quarters. How many dimes and how many quarters does Lucinda have?
Find an equation for the line that passes through the point P ( 0 , − 4 ) and has a slope 8/9 .
is that a negative 4 or positive 4?
Felix
if negative 4, then 4=8/9(0) + b
Felix
if positive 4, then 4=b
Felix
then plug in y=8/9x  4 or y=8/9x+4
Felix
Macario is making 12 pounds of nut mixture with macadamia nuts and almonds. macadamia nuts cost $9 per pound and almonds cost $5.25 per pound. how many pounds of macadamia nuts and how many pounds of almonds should macario use for the mixture to cost $6.50 per pound to make?
Nga and Lauren bought a chest at a flea market for $50. They refinished it and then added a 350 % mark  up
Source:
OpenStax, Elementary algebra. OpenStax CNX. Jan 18, 2017 Download for free at http://cnx.org/content/col12116/1.2
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