katyagrig7
katyagrig7 katyagrig7
  • 13-12-2020
  • Mathematics
contestada

if a²-b²=21 and a²+b²=29, which of the following could be the value of ab?
1. -10
2. 5√2
3. 10

Respuesta :

Аноним Аноним
  • 13-12-2020

Answer:

ab = 10 or -10

Step-by-step explanation:

........

.

Ver imagen Аноним
Answer Link

Otras preguntas

Which of the above boundaries earthquakes can produce earthquakes
HELP PLZ!!! LOTS OF POINTS Convert each angle measure into degrees 7.51(convert this into degrees with explanation please :D)
a paper plate has a diameter of 9 inches.what is the circumference of the plate
Which group received cash payments based on the sale of antitank arms in Iran? Sandinistas Mujahedeen Grenadians Contras
I need help with my homework :/
AP US History question: Assess the relative influence of THREE of the following in the American decision to declare war on Germany in 1917. Germany naval policy
8x = 2x + 30 What is the value of 'x'?
which sentence expresses information in the positive form: A. I'm neither on time nor prepared B. I prefer to arrive on time C. I don't like to arrive on time D
if 5y = 1 over 25, what is y?
The sum of two consecutive integers is 37. Write an equation that models this situation and find the values of the two integers.