Estimate the product by first rounding each number so that there is one nonzero digit.2.05 × 449.9

A. 400
B. 800
C. 1000
D. 880


Answer: B

Mathematics

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Find the triple scalar product (u x v) ? w of the given vectors.u = 4i + 2j - k; v = 1i + 5j - 3k; w = 5i + 3j - 6k

A. -44 B. -52 C. -142 D. -80

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Find the GCD for the pair of natural numbers.84, 378

A. 6 B. 42 C. 14 D. 21

Mathematics

Find length of missing side in the following triangles using the Pythagorean theorem. Round to one decimal place.

A. 148.9 cm B. 12.2 cm C. 4.9 cm D. 4.1 cm

Mathematics

Find the distance between the point )9,9,3) and the plane 15x-3y-8z=10. Round your answer to two decimal place.

a. 4.79 b. 6.79 c. 4.29 d. 7.79 e. 5.79

Mathematics