1. What is the volume of a cube whose edges are (4a + 3) cm in length? A. 64a³ – 48a² + 36a − 27 ??³ B. 64a³ + 48a² + 36a + 27 ??³ C. 64a³ – 144a² + 108a − 27 ??³ D. 64a³ + 144a² + 108a + 27 ??³ 2. What is the distance travelled by a passenger plane in (12x + 9) hours with a speed of (12x – 9) kph? A. (144x² – 40x - 81) km B. (144x² + 40x + 81) km C. (144x² − 81) km D. (144x² + 81) km 3. Dos can paint a room in (1/4 x²y² + 1/2 xy - 12) hours. How many days can he finish painting the same type of room if he works (1/2 xy - 3) hours in a day? A. (1/2 xy - 4) days B. (1/2 xy - 3) days C. (1/2 xy + 4) days
1. What is the volume of a cube whose edges are (4a + 3) cm in length? A. 64a³ – 48a² + 36a − 27 ??³ B. 64a³ + 48a² + 36a + 27 ??³ C. 64a³ – 144a² + 108a − 27 ??³ D. 64a³ + 144a² + 108a + 27 ??³ 2. What is the distance travelled by a passenger plane in (12x + 9) hours with a speed of (12x – 9) kph? A. (144x² – 40x - 81) km B. (144x² + 40x + 81) km C. (144x² − 81) km D. (144x² + 81) km 3. Dos can paint a room in (1/4 x²y² + 1/2 xy - 12) hours. How many days can he finish painting the same type of room if he works (1/2 xy - 3) hours in a day? A. (1/2 xy - 4) days B. (1/2 xy - 3) days C. (1/2 xy + 4) days
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter63: Volumes Of Pyramids And Cones
Section: Chapter Questions
Problem 34A
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1. What is the volume of a cube whose edges are (4a + 3) cm in length?
A. 64a³ – 48a² + 36a − 27 ??³
B. 64a³ + 48a² + 36a + 27 ??³
C. 64a³ – 144a² + 108a − 27 ??³
D. 64a³ + 144a² + 108a + 27 ??³
2. What is the distance travelled by a passenger plane in (12x + 9) hours with a speed of (12x – 9) kph?
A. (144x² – 40x - 81) km
B. (144x² + 40x + 81) km
C. (144x² − 81) km
D. (144x² + 81) km
3. Dos can paint a room in (1/4 x²y² + 1/2 xy - 12) hours. How many days can he finish painting the same type of room if he works (1/2 xy - 3) hours in a day?
A. (1/2 xy - 4) days
B. (1/2 xy - 3) days
C. (1/2 xy + 4) days
D. (1/2 xy + 3) days
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