Which of the following is the most precise measurement?
a. 7 cm
b. 7.5 cm
c. 7.523 cm
d. 7.52 cm

C. 7.523 cm

Step-by-step explanation:

Since all measurements are in cm, the one with the most decimal digit is more precise, because it can measure difference up to one thousand of a centimeter.

7cm can only tell whole centimeters apart

7.5cm can only tell tenths of centimeters apart

7.52cm can only tell hundreths of centimeters apart.

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

i belive those are the ones that are under 90 degreese.