Now that you've created your hypothesis it's time to prove them first look at the sum of two rational numbers let's say they are two rational numbers X and y. Because they are rational they can be written as a ratio of integers Let X= a/b and Y=c/d where a, b,c and d are integers and b and d do not equal 0. The process for finding the sum X+Y in terms of a, b,c and d is shown. Based on the sun and using the closure property of integers what conclusion can you make about the sum of two rational numbers explain your answer

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

50- 250 is correct i did that one too

step-by-step explanation:

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

i dont understand

step-by-step explanation: