The annual interest rate on a loan is 12% which can be represented using the expression 1.12t. write an expression that represents the 6 month interest rate. a) 1.058t b) 1.0582t c) 1.119t d) 1.1192t

B) 1.0583^t

Step-by-step explanation:

The formula for the interest earned on an investment is

I = (1 + r)^t

Data:

I = 1.12

t = 2

Calculations:

1.12 = (1 + r)²

Take the square root of each side

1.058 30 = 1 + r

Then, the formula for the interest calculated on a six-month basis is

I = 1.0583^t

The option with the closest answer is B) 1.0582^t.

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950