If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.? = 60°, A = 46 square meters, r = ?

A. 4.91 m
B. 96.29 m
C. 24.07 m
D. 9.38 m

Answer: D

Mathematics

Write the sets as a roster. the set of natural numbers less than or equal to 9

A. {0, 1, 2, 3, . . . , 9} B. {1, 2, 3, . . . , 8} C. {0, 1, 2, 3, . . . , 8} D. {1, 2, 3, . . . , 9}

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Mathematics

Perform the operation and write the result in the standard form.(9 + 9i)(3 - 5i)

A. 72 + 18i B. -45i2 - 18i + 27 C. 72 - 18i D. -18 + 72i

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Mathematics

Use the distributive property to simplify.(10y - x + 6)

A. y² -  + 2
B. y² -  + 2y
C. y² - x + 6
D. y² +  - 2y

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Mathematics

Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.The boy is 1.9 tall.

A. km B. m C. cm D. mm

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Mathematics