Answer:
PR = 39 cm
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
PR² + PQ² = QR² , that is
PR² + 80² = 89²
PR² + 6400 = 7921 ( subtract 6400 from both sides )
PR² = 1521 ( take the square root of both sides )
PR = 
= 39
the number of ways 15 students can be selected from a class of 32 students
Here the number of students to be selected = 15
And the total number of students = 32
So the Number of ways 15 students can be selected from a class of 32 students should be
32 C 15 ,
it means we have to solve 32 C 15 ,
for this we need to see the 15th row of the pascals triangle.
The cost of the table would be $150. 40% of $250 is $100.
Answer:
one
Step-by-step explanation:
