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

Brainliest question please help me please

Which best describes the pros and cons for Middle Eastern countries that restrict nonagricultural water use? The price of water goes down, which decreases the n

Find the 22nd term in the arithmetic sequence -5, -9, -13, -17, -21

What is a limitation of the electron cloud model theory that a law about electrons would not have?

Write Jordan a three-paragraph letter in English, and compare the culture of Burundi and American culture, especially in terms of foods, sports, transportation,

Will mark brainliest!

Using the periodic table as a reference, which elements could bond to form a compound most like NaCl? Question 3 options: Hydrogen (H) and Oxygen (O) Potassium

Someone help me please.

A bag of trail mix shrugged 1.625 pounds round 1.625 to the nearest tenth.use the number line for help

Where did the Reconquista take place?