These three shapes represent the first three figures in a sequence of figures made from small cubes.
(a) (5 x 5) + (4 x 5) + (3 x 5) + (2 x 5) + (1 x 5) = 75
(b) (n x n) + ((n x 1) x n) + ... + (1 x n)
Mathematics
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Provide an appropriate response.Find the area of a sector of a circle, A, if ? = 70° and r = 5 in.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Factor completely, or state that the polynomial is prime.64x2 - 80x + 25 - 81y2
A. (8x - 5 + 9y)(8x - 5 - 9y) B. (8x + 5 + 9y)(8x - 5 - 9y) C. (8x + 5 + 9y)(8x + 5 - 9y) D. prime
Mathematics
Use the Pythagorean Theorem to find the missing side of the right triangle.
A. 410
B. 
C. 13
D. 205
Mathematics