If angle C is a right angle and angle A equals 50, then prove that the measure of angle B equals 40" Which of the following would be the first step to assume in order to prove the statement above by contradiction using an indirect prool?

A)The measure of angle B does not equal 40°

B)The measure of angle A equals 50

C)The measure of angle B equals 40

D)Angle C is not a night angle.

E)Angle C is a right angle

IM GIVING 15 POINTS

3/6   and 9/18

step-by-step explanation:

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.