11 Un niño hace girar unos audífonos levantándolos sobre su cabeza. Los audífonos giran de modo metro. ¿Con qué rapidez constante debe el niño hacer girar los audífonos para que alcancen
que forman círculos y la distancia desde la mano del niño a la punta de los audífonos es de 1
una aceleración centrípeta de 2m/s??​

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

An object in geometry with no width, length or height is a(n):

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0