Answer:
90
Step-by-step explanation:
a triangle's angles all add up to 180. take 51 and 39 away from 180 and you get 90
You should be able to set up a proportion between the sides something like (18+x)/x=(56+21)/56
Answer:
yes
Step-by-step explanation:
repeating decimal. when a fraction is changed to a decimal and the remainder is not zero, a digit or a block of digits will eventually start to repeat. terminating or repeating decimal. since a rational number is a number that can be written as a fraction, every rational number can be expressed as either.
Answer:
Pick 3 or four points on the ray that land on a point (not (5.5, 2.5) more like whole numbers (3,3). These are just examples.)on the slope. Then find the slope of all points. if the answers are the same, then it is constant
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
Write the expression
-2x²y
substitute the real values with x=-3 and y= -1
-2(-3²)×(-1)
-2(9)×(-1)
-18×-1
18
