Suppose the sum \[ \sum_{k = 0}^{49} ( - 1)^k \binom{99}{2k}, \] where \binom{n}{j} = \frac {n! }{j! (n - j)! }, is written in the form a^b, where a and b are integers and b is as large as possible. find a+b.

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)

(05.02) mr. morris is going to save money and replace his sailboat's mainsail himself. he must determine the area of the mainsail in order to buy the correct amount of material. calculate the area of the parallelogram to determine how much material should be purchased. be sure to explain how to decompose this shape into rectangles and triangles. describe their dimensions and show your work.

Flvs question 3 exam: 04.10 segment one exam part two what is the measure of angle x? picture is shown