I would say A) is your answer.
This is my choice, so I might be wrong.
Glad I could help, and good luck!
Answer: No
Step-by-step explanation:
Complementary means angles add up to 90 degrees.
Supplementary means angles add up to 180 degrees.
Since Supplementary doesn't add up to 180 degrees, the answer is false.
Answer:


This is the formula for the <u>pythagorean </u><u>theorem </u>i.e, one leg of a triangle squared plus another leg of a triangle squared equals the hypotenuse squared.
Answer:
RC = 40
Step-by-step explanation:
Note that the circumcentre is equally distant from the triangle's 3 vertices.
That is : PC = RC = QC
Equate any pair and solve for x
Using RC = PC, then
5x - 15 = 3x + 7 ( subtract 3x from both sides )
2x - 15 = 7 ( add 15 to both sides )
2x = 22 ( divide both sides by 2 )
x = 11
Hence
RC = (5 × 11) - 15 = 55 - 15 = 40 units
A true
because 53•(41•11)=23,903 and (53•41)•11=23,903
Hope this helped