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

5. Show that the following points are collinear. a) (1, 2), (4, 5), (8,9)

Select the correct answer. Simplify the following expression. 4^-11/3 / 4^-2/3 A. B. C. D.

yo mm How your answer to the nearest tenth. (Use 3.14 for a The model below is composed of a rectangle and a semicirce. Find the area of the figure, Round 36 m

How far can he travel in 2 hours 7 minutes?

Worldwide, the total number of land animals killed for food every hour is

In today's world, scientists can tell that plates are moving. Which of these is one of those ways? A. Microscopes B. GPS C. Stethoscopes D. Binoculars

Which article of the Constitution gives the Supreme Court its power? Article I Article II Article III Article IV

Humans can maintain stable internal temperature by

Evaluate this statement. Is it correct? pick the option that has the best argument for/against this claim. ""anaerobic respiration is only used when aerobic res

questions to ask a famous musician