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If ∣ x + 2 ∣ ≤ 9, then
Choice (b) is correct. Given, ∣ x + 2 ∣ ≤ 9 ⇒ -9 ≤ x + 2 ≤ 9 ⇒ -9 -2 ≤ x ≤ 9 - 2 ⇒ -11 ≤ x ≤ 7 ⇒ x ∈ [-11, 7] This question related to Chapter 5 maths Class 11th NCERT. From the Chapter 5: Linear Inequalities. Give answer according to your understanding. For more please visit here: https://www.tiwRead more
Choice (b) is correct.
Given, ∣ x + 2 ∣ ≤ 9 ⇒ -9 ≤ x + 2 ≤ 9
⇒ -9 -2 ≤ x ≤ 9 – 2 ⇒ -11 ≤ x ≤ 7
⇒ x ∈ [-11, 7]
This question related to Chapter 5 maths Class 11th NCERT. From the Chapter 5: Linear Inequalities. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-5
Which one of the following does not lose their nucleus at maturity?
(c) Companion cell does not lose nucleus at maturity whereas rest others does lose it. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
(c) Companion cell does not lose nucleus at maturity whereas rest others does lose it.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
See lessHow does a lever work? Explain with an example.
A lever is a simple machine consisting of a rigid bar that rotates around a fixed point called the fulcrum. It helps reduce effort by distributing force. Depending on the position of effort, load, and fulcrum, levers are classified into first-class (seesaw), second-class (wheelbarrow), and third-claRead more
A lever is a simple machine consisting of a rigid bar that rotates around a fixed point called the fulcrum. It helps reduce effort by distributing force. Depending on the position of effort, load, and fulcrum, levers are classified into first-class (seesaw), second-class (wheelbarrow), and third-class (tongs). In a seesaw, when a person pushes down on one end, the opposite side rises due to the applied force, demonstrating how levers make work easier.
See lessIdentify simple machines used in a bicycle and explain their functions.
A bicycle combines various simple machines for efficient movement. The wheels and axles enable rolling motion with minimal friction. The pedals act as levers, allowing riders to apply force efficiently. The chain and sprockets function as pulleys, transferring power from pedals to the rear wheel. BrRead more
A bicycle combines various simple machines for efficient movement. The wheels and axles enable rolling motion with minimal friction. The pedals act as levers, allowing riders to apply force efficiently. The chain and sprockets function as pulleys, transferring power from pedals to the rear wheel. Brakes use levers to slow down or stop the bicycle. The gears adjust speed and force, making pedaling easier. Together, these simple machines make bicycles a practical mode of transportation.
See lessHow do simple machines make work easier?
Simple machines function by distributing force, reducing the effort required to complete tasks. A lever helps lift objects by increasing force, while a pulley changes the direction of force, making lifting easier. The wheel and axle reduce friction, enabling smooth movement. Inclined planes lessen tRead more
Simple machines function by distributing force, reducing the effort required to complete tasks. A lever helps lift objects by increasing force, while a pulley changes the direction of force, making lifting easier. The wheel and axle reduce friction, enabling smooth movement. Inclined planes lessen the force needed to move objects upward. Wedges and screws enhance precision and force application. By utilizing these machines, humans can perform complex tasks with minimal effort, improving productivity and efficiency.
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