Which expression is equivalent to (-11x2 + 1.4x – 3) + (4x2 - 2. 7x+8)? A. -7x2 - 1.3x + 5
B. -7x2 + 1.3x + 5
C. 7x2 - 1.3x + 5
D. 7x2 + 1. 3x + 5

da freeck kinda math is this just drop out

step-by-step explanation:

multiply length by height. multiply the length by the height, and then double the product. work out 10 x 10 results = 100 square inches, then work out 100 x 2 = 200. the answer is 200 square inches.

step-by-step explanation:

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.

8: 40

2 hours

10: 40

55 min

11: 35