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A farmer plans to build a rectangular pen with one side cut off by a river, as shown below. He has 40 meters of fence to enclose the remaining three sides.
Write a function to describe the area A enclosed by the fence, in terms of only the width x.
Continue the LessonDesigned for the IB
Hence the ratio of energies is
Substituting MV−MS=9.5−2.3=7.2 gives
Therefore about 6.31×1010 Swift Quakes are needed to match the energy of the Valdivia earthquake.
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Tiffany thinks that a penny dropped from the 380 meter tall Empire State Building will accelerate uniformly at gravitational acceleration, 9.8m/s2.
- [3]
Assuming Tiffany is correct, find how long it takes the penny to fall.
Because of drag, the penny does not uniformly accelerate at 9.8m/s2. Instead the acceleration of a penny dropped from the Empire State Building can be modeled by
- [3]
Determine the highest speed that the penny reaches.
Because of her error, Tiffany waits for k seconds longer than she expected for the penny to reach the ground.
- [3]
Find k.
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I think this is probably the only site that really contributed to my understanding of many of the more difficult maths topics.
— Amira 🇲🇾
Perplex made everything click - the explanations are intuitive, and the seamless experience lets me move effortlessly between solving problems, learning, and chatting with AI without ever losing momentum.
— Samir 🇦🇪
Perplex helped me realize my potential was much higher than I initially thought. I went from a 5 in DP1 to a 7 in final exams.
— Alex 🇨🇮
Using Perplex allowed me to improve my math skills through repetition and continuous help from the AI. As a whole it helped me get a strong 6 in final exams.
— Arthur 🇫🇷
Perplex helped me get from a four to a seven in math higher. it has everything you need: tons of problems, animations, and notes on everything. with that and a super helpful support team, they're the best IB math resource I've found.
— Mathieu 🇨🇭
I think this is probably the only site that really contributed to my understanding of many of the more difficult maths topics.
— Amira 🇲🇾
Perplex made everything click - the explanations are intuitive, and the seamless experience lets me move effortlessly between solving problems, learning, and chatting with AI without ever losing momentum.
— Samir 🇦🇪
Perplex helped me realize my potential was much higher than I initially thought. I went from a 5 in DP1 to a 7 in final exams.
— Alex 🇨🇮
Using Perplex allowed me to improve my math skills through repetition and continuous help from the AI. As a whole it helped me get a strong 6 in final exams.
— Arthur 🇫🇷
Perplex helped me get from a four to a seven in math higher. it has everything you need: tons of problems, animations, and notes on everything. with that and a super helpful support team, they're the best IB math resource I've found.
— Mathieu 🇨🇭
I think this is probably the only site that really contributed to my understanding of many of the more difficult maths topics.
— Amira 🇲🇾
Perplex made everything click - the explanations are intuitive, and the seamless experience lets me move effortlessly between solving problems, learning, and chatting with AI without ever losing momentum.
— Samir 🇦🇪
Perplex helped me realize my potential was much higher than I initially thought. I went from a 5 in DP1 to a 7 in final exams.
— Alex 🇨🇮
Using Perplex allowed me to improve my math skills through repetition and continuous help from the AI. As a whole it helped me get a strong 6 in final exams.
— Arthur 🇫🇷
Perplex helped me get from a four to a seven in math higher. it has everything you need: tons of problems, animations, and notes on everything. with that and a super helpful support team, they're the best IB math resource I've found.
— Mathieu 🇨🇭