Ateacher asks each student to randomly choose a number from 1 to 90 and write it down. keiko and mitsugu write down the number. what is the probability that both of their choices will be greater than 75? express your answer as a decimal. if necessary round your answer to the nearest thousandth. a. 0.028 b. 0.167 c. 0.972 d. 0.026

A. 0.028

Step-by-step explanation:

Given,

The total numbers = 90 ( from 1 to 90 ),

Also, numbers greater than 75 = 90 - 75 = 15,

Keiko and Mitsugu write down numbers randomly from these numbers,

Hence, the probability that both of their choices will be greater than 75

= The probability of a number greater than 75 × the probability of a number greater than 75

=

=

= 0.027777

≈ 0.028

Option 'A' is correct.

i will u if u answer my question in math

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.