Use the following information to fill in the blank: 21 T = ___ mL

A. 1.4
B. 315
C. 105
D. 4.2


Answer: B

Mathematics

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Use the pH scale to answer the question.If the pH of a solution increases by 2, how much does the hydrogen ion concentration change? Does the change make the solution more acidic or more basic?

A. Decreases by a factor of 100; more basic B. Increases by a factor of 20; more acidic C. Increases by a factor of 100; more acidic D. Decreases by a factor of 20; more basic

Mathematics

Write a fraction to represent the shaded part of the figure.

A.
B.
C.
D.

Mathematics

Find the values of a, b, and c for which the quadratic equation ax2 + bx + c = 0 has the given numbers as solutions. Then use those values to write a quadratic equation.4i, -4i

A. x2 - 8 - 16 = 0 B. x2 + 8 + 16 = 0 C. x2 + 16 = 0 D. x2 - 16 = 0

Mathematics

Solve the problem.The graph below shows the total sales of houses in a town from 2000 to 2005. The graph also shows the sale of houses in the summer , S, and in the other times of the year, Y.Estimate (S+Y)(2002).

A. 64 B. 53 C. 59 D. 67

Mathematics