Multiply.(3 + 4)(3 + 7)

A. 58
B. 91 + 33
C. 37 + 21
D. 28 + 9 + 21

Answer: B

Mathematics

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Find the divergence of the field F.F = 8x5i + 3y5j + 2z5k

A. 40x4 + 15y4 + 10z4 B. 65 C. 0 D. 8x4 + 3y4 + 2z4

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Simplify the expression by combining like terms.z2 - 3z2 - 6z2

A. 13z2
B. z4
C. 13z4
D. z2

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Solve.6x - y + 8z = 526x + 9y - 3z = 576x - 4y + z = -1

A. (-3, 6, 5) B. (3, 6, 5) C. (-3, 6, 6) D. (3, 5, 6)

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Express the number in scientific notation.0.000022712

A. 2.2712 × 10-4 B. 2.2712 × 105 C. 2.2712 × 104 D. 2.2712 × 10-5

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