browndaisha9 browndaisha9

12-04-2017
Mathematics

contestada

Solve
x2 - 49 = 0

A) ±49
B) ±12
C) ±7
D) ±6

Respuesta :

essembly essembly

12-04-2017

C, x = +-7. Difference of squares

Answer Link

Аноним Аноним

12-04-2017

x2 - 49 = 0 factor this:0
(x + 7)(x - 7) = 0

x = +/- 7

Answer Link

Otras preguntas

Discuss how nationalized health care raises serious questions about the cost-benefit analysis approach to health care?

4. Two 30 kg blocks rest on a massless belt which passes over a fixed pulley and is attached to a 40 kg block. If coefficient of friction between the belt and t

Describe the business-level strategy that your firm employs. Does it trend more towards a low-cost leadership strategy or is it more of a differentiator? Does i

Through a horizontal of the cannon, and the barrel exerts a constant friction force of 0. 0327N on the ball. (a) With what speed does the projectile leave the b

What would the Herfindahl-Hirschman Index be in this situation? One firm with a monopoly in the market?

Certain trees, such as dogwood, are commonly inhabited by fungus that consumes leaves from the tree. Which of the following best describes the relationships bet

If sin x = ey, 0 < x < π, what is dy/dx in terms of x? Responses: -tan x -cot x cot x csc x.

A joint venture is a(n): A. Association limited to no more than two persons in business for profit B. Enterprise of numerous co-owners in a nonprofit undertakin

In a single degree of damped vibration system a suspended mass of 8kg makes 30 oscillations in 18 seconds. The amplitude decreases in 18 seconds. The amplitude

Describe and correct the error in factoring the polynomial 6x²-4x+2=2x-23x+1