ztosca2013 ztosca2013

20-03-2019
Mathematics

contestada

Expand.
Your answer should be a polynomial in standard form.
(5r+2)(5r-2)=

Respuesta :

SheyJay02 SheyJay02

20-03-2019

Answer:

131.25

Step-by-step explanation:

25r²-10r+10r-4=0

25r²-4=0 (Since -10 and 10 cancel each other out)

25r²=4

Divide both sides by 4 to get r² = 6.25

Square both sides to get r = 2.5

Plug 2.5 back into the equation to get the answer of 131.25

Answer Link

Otras preguntas

the endons.descrwritealintrodefinconfidefinneutr

There are 6 different organisms in the picture above. Organize them into 2 or more groups AND defend your groups byproviding details about why you put them into

Toby wrote this paragraph for his persuasive essay: Anyone can grow a garden. You can grow fresh vegetables. You can harvest all summer. The vegetables taste go

Which statement best compares events in Egypt, Libya, and Tunisia during the Obama presidency? In Egypt and Tunisia, pro-democracy uprisings led to a mostly pea

PLEASE HELP, ASAP, Thank you!

Exercice 13: Reproduire la figure suivante, puis transformer le triangle ABC ci-dessous :1) par une homothétie de centre E et de rapport 2 ;2) par une homothéti

Divide £144 in the ratio 5:7

jane austen's pride and prejudice novel is about what

when are dntps used in the polymerase chain reaction

what is the oxidation number of nitrogen in the nitrate ion NO3^1-