littlebrewer9376 littlebrewer9376

07-11-2017
Mathematics

contestada

X^2 +x-12 = 0 if a is a solution of the equation above and a> 0, what is the value of a?

Respuesta :

Аноним Аноним

07-11-2017

x² + x - 12 factors into (x + 4) and (x - 3)
So if you set each factor equal to zero you get the following solutions
(x + 4) = 0 ⇒ x = -4 which cannot be "a" since a > 0 and -4 is not > 0
(x - 3) = 0 ⇒ x = 3 this is the value of "a"

answer: a = 3

Answer Link

Otras preguntas

A store accidentally priced an item at $20 instead of $30 and honored the mispricing. Where should the store attribute the $10 difference?Sales or Profit (loss)

Two planes are flying from San Francisco to Chicago, a distance of 1,800 miles. They leave San Francisco at this same time period after 30 minutes, one plane ha

Perform the following computations.You may use13≈0.333333,34= 0.75 and100301= 0.332226.(i). Compute13+34by using five significant digits rounding arithmetic and

How important is education in helping to prevent pregnancy and the spread of STD’s?

The chart of accounts is designed toA) alphabetized the accounts to make reading easier for its financial statement usersB) summarize the transactions and deter

Which of the following is an inference?O A.The gorilla was able to jump across the water.B.The little boy ran across the playground.OC. John runs faster than Er

In the first published study on cognitive dissonance, Brehm (1956) asked women to rate several household items. They were then allowed to choose one item to kee

Mr. Stan Busfield, distribution center manager for Hogan Kitchenwares, must determine when to resupply his stock of spatulas. The DC experiences a daily demand

A large tower is to be supported by a series of steel wires. It is estimated that the load on each wire will be 10,100 N. Determine the minimum required wire

Failure in a particular structure of the heart tends to cause a backup of blood in the lungs. What is this particular structure?