The annual interest rate of claudia's savings account is 8.6%, and simple interest is calculated semiannually. what is the periodic interest rate of claudia's account?

4.3

Step-by-step explanation:

i just did it hah

The periodic interest rate would be 4.3 %.

Step-by-step explanation:

Given,

The annual rate = 8.6%,

Thus, the periodic rate =

Here, the period is semiannually,

∵ number of semiannual = 2,

Thus, the number of periods = 2,

Hence, the periodic rate =

= 4.3%

answer: (1,3) and (-2,0) i think.

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.