melissaerdem
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

Certain characteristics allow animals to survive in one environment but not in another. Which two statements support the claim that an Arctic wolf can NOT survi
Identify the technical term that is being described in each item. Choose from the pool of words inside the box and write the correct answers on your answer shee
What is the slope of a line that is perpendicular to the graph of y= 5/3 x + 8?
list 3 new facts you learned about memorial day from Flocabulary.
You buy milk at $3.48 per gallon. One portion of oatmeal requires 5 ounces of milk. How much does the milk for one portion cost? Round to the nearest cent.
please help me please
5 points 1. A rubber-band-powered toy car is loaded by pushing it backward until the rubber band inside is stretched tight. The child lets it go and the rubber
A singular subject joined by or/nor requires a __________
Pls help I need help with #8 I need a answer and a explanation pls
गुहायाः ka arth in hindi​