Astudent is taking a multiple choice exam where each problem has 5 choices. a correct answer gains 1 point. an incorrect answer loses one-half of a point. a blank makes no change to the grade.

what is the expected value of guessing on a problem?

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

7,24

step-by-step explanation:

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!