melissaerdem melissaerdem

01-10-2017
Mathematics

contestada

If (a+b)^2=25, and a^2+b^2=17, then what is a*b equal to? Thanks.

Respuesta :

Аноним Аноним

01-10-2017

a^2 + b^2 = (a + b)^2 - 2a*b

substituting:-

17 = 25 - 2 a*b
a*b = (25-17) / 2 = 8/2 = 4 answer

Answer Link

Otras preguntas

What are the differences between producers, consumers, and decomposers?

An epidemic has hit Clinton City. Its population is declining 22% every hour. In just 4 hours, there are only 35,542 people left in the city. What was the initi

The type of energy possessed by a fluid above its base level is

scale a shows weights rounded to four decimal places while scale b shows weights rounded to thre decimal places which of the following bes describes the realtio

What was the impact of using the atomic bomb on the cities of hiroshima and nagasaki in world war ii?

the division property of equality could be used to solve which of the following equations: 5x=30 x+3=7 (x+2)(x-2)=0 x/4=16

what is tybalt's dominant humor

How does ecosystem disruption affect biodiversity in an ecosystem?

Last year sandro bought a book for $13.89. this year the same book cost $15.79. what is the percent of change

How do you make babies?