Write a recursive formula for the arithmetic sequence below. What is the
value of the 8th term?
1,5,9,13,...
a. A(n) = A(n-1) - 4; -27
C. A(n) = A(n-1)+4; 29
b. A(n) = 4A(n - 1); 29
d. A(n) = -4A(n-1); -27

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no