A bank account earning annual compound interest was opened, and no additional deposits or

withdrawals were made after the initial deposit. The balance in the account after x years can

be modeled by b x( ) = 850(1.025)x

.

Which statement is the best interpretation of one of the values in this function?

The balance in the account increases at a rate of 2.5% 

Step-by-step explanation:

The balance in the account after x years is modeled by

b (x) = 850(1.025)x

In another form

b(x) = 850(1 + 25%)^x

Where

850 = initial deposit

25% = Interest rate

"+" sign signifies the increase

Therefore the balance in the account increases at a rate of 2.5% 

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: