marisleydibarrp515c7
marisleydibarrp515c7 marisleydibarrp515c7
  • 17-09-2018
  • Mathematics
contestada

need help and show me the steps

need help and show me the steps class=

Respuesta :

sunnyk2297
sunnyk2297 sunnyk2297
  • 17-09-2018

S= n/2 (a+1)

Divide both sides by n/2

S/n/2= a+l

Subtract 1from both sides

S/n/2-1=a

Answer Link

Otras preguntas

A student is provided with 500 mL of 600 ppm solution of sucrose. What volume of this solution in milliliters contains 0.15 g of sucrose? ​
Jamila graphs the function describing Monday's rainfall. Is the graph linear or nonlinear? How do you know?
help!!! i will give a brainliest!!
A machine depreciates by 1/4 of its value each year. If it cost $50,000 new, what is its value after 8 years?
For what reasons is abstinence a great idea - Personal - Social - Economic - All
evaluate (2/3)6 powerevaluate 2/3 evaluate 2/3 6th power ​
Need help with number 4 only
Can anyone answer this?
if you pay 6$ for a pound of something how much would it cost to buy 2.6 pounds
NEED HELP ASAP Asha is reading aloud from a social studies textbook, and she makes a reading mistake when she reads these sentences: Voters learn about issues b