Perform the indicated operations.4 ? 2 + 3(8 + 5) + 8
A. 268
B. 55
C. 45
D. 71
Answer: B
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Find the number of molecules in the given quantity of a compound whose molar mass is given. Express your answer in scientific notation, rounding the decimal part to the nearest hundredth.50 grams of carbon monoxide (CO); molar mass: 28.01 grams
A. 8.43 × 1026 molecules B. 1.07 × 1024 molecules C. 8.43 × 1027 molecules D. 1.07 × 1023 molecules
Find the slope-intercept form of the line satisfying the given conditions.Slope 3; y-coordinate of the y-intercept -6
A. y = -6x - 3 B. y = 3x - 6 C. y = 3x + 3 D. y = 3x + 6
The equation has a solution r in the interval indicated. Approximate this solution correct to two decimal places.x4 - x3 - 7x2 + 5x + 10 = 0; 2 < r ? 3
Fill in the blank(s) with the appropriate word(s).
Solve the inequality and give the solution in interval notation.-8x > -32 or x + 8 > 7
A. (-1, 4) B. (-?, ?) C. (-?, -1) ? (4, ?) D. (-1, ?)