They can line up 20 different ways
Answer:
C
Step-by-step explanation:
Using the rule of exponents
= 
Note that 8 = 2³, thus

= 
= 
= 2²
Answer:
Option C - 70 cm²
Step-by-step explanation:
Area of a right angle triangle is given by the formula :
A = 1/2×h×b
A = 1/2×7×4
A = 1/2×28
A = 14
This is the area of 1 right angle triangle. The area of 5 will be
14×5 = 70
Units will be cm²
Hope this helped and have a good day
So the closest integer above the square root of 3 is 2, and the closest integer below the square root of 89 is 9. (square root of 4 and 81, respectively.)
So we just want to add together all numbers between (including) 2 and 9.
So,
2 + 3 + 4 + 5 + 6 + 7 + 8 + 9
Or,
11 * 4
44