Solve the inequality 2 ≤ - 4 - 3x < 17
A
- 7 > x ≥ - 2
B
- 7 < x ≤ 2
C
7 < x ≤ - 2
D
- 7 < x ≤ - 2
উত্তরের বিবরণ
Question: Solve the inequality 2 ≤ - 4 - 3x < 17
Solution:
2 ≤ - 4 - 3x < 17
⇒ 2 + 4 ≤ - 4 - 3x + 4 < 17 + 4
⇒ 6 ≤ - 3x < 21
⇒ - 6 ≥ 3x > - 21
⇒ - 6/3 ≥ 3x/3 > - 21/3
⇒ - 2 ≥ x > - 7
∴ - 7 < x ≤ - 2
0
Updated: 3 days ago
The supplement of an angle exceeds twice the angle by 30°. Then the angle is equal to-
Created: 5 days ago
A
60°
B
45°
C
50°
D
35°
Question: The supplement of an angle exceeds twice the angle by 30°. Then the angle is equal to-
Solution:
Let the angle be x
Then, its supplement = 180 - x
According to the question,
180 - x = 2x + 30
⇒ 180 - 30 = 3x
⇒ 150 = 3x
⇒ x = 50°
0
Updated: 5 days ago
The next term of the series: 25, 49, 81, ____ is
Created: 3 days ago
A
101
B
121
C
144
D
169
Question: The next term of the series: 25, 49, 81, ____ is
Solution:
Given: 25, 49, 81, ____
The series is: 52, 72, 92, 112
So, the next term is 112 = 121
0
Updated: 3 days ago
Which of the following describes all values of x for which 1 - x2 ≥ 0?
Created: 3 days ago
A
x ≤ 1
B
0 ≤ x ≤ 1
C
1 ≤ x ≤ - 1
D
- 1 ≤ x ≤ 1
0
Updated: 3 days ago
