43. Make Sense and Persevere The lowest and leftmost note on a piano keyboard is an A.
The next lowest A is seven white keys to
the right. This pattern continues. Write an
explicit formula for an arithmetic sequence to
represent the position of each A key on the
piano, counting from the left. If a piano has
52 white keys, in what position is the key that
plays the highest A?

d

step-by-step explanation:

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

0.32

step-by-step explanation:

2.24/7

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!