Which coefficient before hydrogen (h2) balances this chemical equation? n2 + __h2 2nh3 a. 2 b. 3 c. 4 d. 5

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

Which pair of numbers is relatively prime? a. 105 and 128 b. 130 and 273 c. 205 and 350 d. 273 and 333