All u have to do is 20-1=19
Answer:
answer is b
Step-by-step explanation:
Answer:
1/61
Step-by-step explanation:
reciprocal just means you flip it. since 61 is a whole number. it would be 61/1 but you flip that over and its 1/61.
Answer:

Step-by-step explanation:
we know that
The perimeter of quadrilateral PQRS is equal to the sum of its four length sides
the formula to calculate the distance between two points is equal to

we have
the vertices P(2,4), Q(2,3), R(-2,-2), and S(-2,3)
step 1
Find the distance PQ
P(2,4), Q(2,3)
substitute in the formula




step 2
Find the distance QR
Q(2,3), R(-2,-2)
substitute in the formula



step 3
Find the distance RS
R(-2,-2), and S(-2,3)
substitute in the formula



step 4
Find the distance PS
P(2,4), S(-2,3)
substitute in the formula



step 5
Find the perimeter

substitute the values



60 degrees
Right angles add up to 90 so 90-30=60