Solve for the indicated variable.
=
, for P (gas law)
A. P =
B. P =
C. P =
D. P =
Answer: B
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Simplify.133 × 122 + (12 - 7) × 6
A. 316,398 B. 3,796,446 C. 316,482 D. 966
Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is In how many years will there be 90% of the isotope left?
A. 527 yr B. 246 yr C. 1000 yr D. 500 yr
Which of the following best exemplifies univocal discourse?
a. A teacher demonstrating a procedure in class for solving quadratic equations and then asking students to use it on their homework exercises. b. Students sharing possible solutions to an open-ended task with one another while working in groups. c. Two students arguing about which strategy is most efficient for solving a given equation. d. A whole-class brainstorming activity where students give opinions about the best models for representing fractions.
Use the Instructional Algorithm for addition or subtraction to perform the operation.719 - 493
A. 226 B. 1212 C. 220 D. 126