Question

VERY SHORT ANSWER TYPE QUESTIONS
Q1. MULTIPLE CHOICE QUESTIONS
1. The length of the edge of a cube whose volume is 343 cm is
a. 11cm
b. 7cm c. 5cm d.49cm
2. The cube root of
a. 2/3
is
'b.-2/3
c. 3/2
d.-3/2
3. To get the nearest perfect cube we should multiply 16 by
a. 2
b.4
C. 8
d.16

Answer 1

Answer:

3.b

1.b

2.b

Step-by-step explanation:

1.volume of a cube =l³

7cm*7cm*7cm

343 cm³

3.4*4=16

Answer 2

Answer:

1. V≈4.04×107cm³= c.49cm

2. The principal, real, root of:

2–√3

=1.25992105

All roots:

1.25992105

−0.629960525+1.09112364i

−0.629960525−1.09112364i

2 is not a perfect cube

3. 8