Question

solve
5-z/7-2=2/z-7

Answer 1

\[-7+\sqrt{119}, -7-\sqrt{119}\]

Answer 2

I do not understand

Answer 3

5-z/7-2=2/z-7

3-z/7=2/z-7

10-z/7=2/z

10=2/z+z/7

10=(14+z^2)/7z

z^2-70z+14=0

find the factors and you will get the answer

Answer 4

I do not know what the factors are.

Answer 5

I am lost

Answer 6

10=(14+z^2)/7z

z^2-70z+14=0

This is where I get lost

Answer 7

http://en.wikipedia.org/wiki/Quadratic_equation

Answer 8

http://www.math.com/students/calculators/source/quadratic.htm

Answer 9

-7,10.9

Answer 10

-7,17

Answer 11

how do you check?

Answer 12

69.799,0.200

Answer 13

WHat?!

Answer 14

THis is why I have a 61 in my math class

Answer 15

put the value

A=1 b=-70 c=14 here http://www.math.com/students/calculators/source/quadratic.htm

Answer 16

THank you so much...I did not catch z^2=1

Answer 17

THese sites are very resourseful for me thank you for your help and patience :)

Answer 18

ur welcome

Answer 19

Gracie Shay wants to buy a new Hummer in 5 years. Gracie estimates the cost of the Hummer will be $28,000. If she invests $12,000 now, at a rate of 6 percent compounded semiannually, she: (Points : 1)
Will have enough money
Will have exactly $16,000
Will have $18,000
Will have $16,126.80
None of these

Answer 20

Earl Miller deposited $25,000 at Y Bank at an interest rate of 12 percent compounded quarterly. (Use the tables in the handbook) The effective rate (APY) is: (Points : 1)
12 percent
12.55 percent
12.15 percent
13.2 percent
None of these