jakeleipzig jakeleipzig

16-04-2021
Mathematics

contestada

What is the value of c such that x^2+14x+c is a perfect-square trinomial?
a
98
b
49
c
7
d
196

Respuesta :

saraalvi00 saraalvi00

16-04-2021

Answer: 49

Step-by-step explanation:

a=1 ,b=14, c=?

b^2-4ac =0

(14)^2-4(1)(c)=0

196-4c=0

196=4c

c=49

Check:

(x)^2+2(x)(7)+(7)^2

x^2+14x+49

(x+7)^2

Answer Link

ACCESS MORE

Otras preguntas

explain the theory of evolution by natural selection

A grandfather is six times as old as his grandson. If the grandfather was 45 when his grandson was born, how old is the grandson?

How did the anti-Jewish decrees affect Anne’s outlook on life?

Which statement is true

Who is the conductor of the san francisco symphony.

A tumbler contains 2 litres and 250 millilitrer of orange juice . How many glasses can be filled with 15 ml of this juice in each

Which chemical element was discovered first microsoft rewards.

what bird pounded down the river in mice of men

I feel like this should be easy, but what are some things that the United Nations (U.N) should adress? I was thinking things like global warming or somethin lik

PLS HELP QUICKLY Why was the following sentence written in passive voice? "Paul knew who stole the cookie." OA. None of these. This sentence is written in activ