Compute the dot product u ? v.u = 
, v = 
A. 20
B. 22
C. 53
D.
| 14? |
Answer: A
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Write the expression as a product of a whole number and a power of 10. Use an exponent to represent the power of 10.0.000004
A. 4 × 10-7 B. 4 × 10-5 C. 4 × 10-6 D. 4 × 10-4
Use Heron's formula to find the area of the triangle. Round to the nearest square unit.a = 5 inches, b = 12 inches, c = 9 inches
A. 23 square inches B. 21 square inches C. 49 square inches D. 51 square inches
Expand.(1 - 
)4 - (1 + 
)4
A. -7
B. -55
C. -32
D. -28
Solve using the problem-solving strategy for systems of linear equations.A chemist needs 110 milliliters of a 26% solution but has only 20% and 53% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 95 mL of 20%; 15 mL of 53% B. 20 mL of 20%; 90 mL of 53% C. 90 mL of 20%; 20 mL of 53% D. 95 mL of 20%; 20 mL of 53%