A = -9 0 3 -1 b = 0 4 -6 2 the order of matrix a + b is ( 2×4 4×2 1×4 4×1 )

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z