Which expression is even for all integers a and b?

A) 2a + b

B) ab + 2a

C) 5a + 6b

D) ab + 2b

E) ab + ab

The wave function of the electron within the well is of the form a cos (2πx / λ) where a is a normalization constant.

Bowl A contains 6 apples and 3 mangoes this can be written as, Bowl B contain 8 apples and 2 mangoes this can be written as. What is the difference between the bowls.

Joes apple weighs 4/5 martas apple weighs 0.5 how much more does joes weigh than martas

What is the coefficient of y in the expression 3 ⋅ 4 5y? 5 9 12 17

The temperature is 50°F The temperature will decrease by 4°F each hour. Let h be the number of hours, When will the temperature be below 32°F? Write an inequality for this problem, A. 50 - 4h: 32 B. 50 - 4h32 c. 50 + 4h3 32 D. 50 + 4h + 32

Least to greatest 6,5,0,-7,-2

Which algebraic expression is equivalent to this expression? 3 (2x - 8) - 11x A. - 5x - 8 B. - 5x - 24 C. - 17x - 24 D. - 17x - 24

Cross out the word does not belong in each group Primrose cowslip - bee grasshopper-humming singing - daisy oak tree - grasses butterfly - fluttering meadow

What is the mode of this data set: 17, 13, 18, 20, 17, 15, 12 A. 19 B. 17

Find the volume for the regular pyramid. slant height = 6, length of side = 4