11. A ball is shot from a cannon into the air with an upward velocity of 40 ft/sec. The quadratic function that gives the height h of the ball at any time t is: h = -16t² + 40t + 1.5. a) How high did the cannon ball go? b) How much time passed before the cannon ball hit the ground (height of 0)? c) When did the cannon ball reach a height of 20 feet? d) What is a reasonable domain and range for this situation?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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