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.

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step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?