Answer:
b. LinkedHashSet
Explanation:
A LinkedHashSet is an ordered version of HashSet that maintains a doubly-linked List across all elements. When the iteration order is needed to be maintained this class is used. LinkedHashSet maintains a linked list of the entries in the set, in the order in which they were inserted.
A doorknob is an example of a:
D. Wheel and Axle.
I hope this helped ^_^
An open-source physical computing platform that can take input from a variety of switches or sensors to control physical objects is known as Arduino.
Arduino means an electronics prototyping system is built to simplify microcontroller projects. The concept is to product these projects without having to know much about microcontrollers or programming, microcontrollers for dummies is one tips of explaining Arduino. Arduino has function to control of traffic lights, it can also be used for the real time control system with programmable timings, pedestrian lighting etc. Arduino can respond with buttons, LEDs, motors, speakers, GPS units, cameras, the internet, and even your smart-phone or your TV.
Learn more about Arduino at brainly.com/question/13098809
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Answer:
120
Explanation:
This question is basically asking how many ways can we arrange 5 sizes of shirts if they come in 4 colors.
5 permutation of 4
To find permutation, we use the formula
P(n, r) = n! / (n - r)!
Where
n is the size of the shirts available, 5
r is the color of each shirt available, 4
P(5, 4) = 5! / (5 - 4)!
P(5, 4) = (5 * 4 * 3 * 2 * 1) / 1!
P(5, 4) = 120 / 1
P(5, 4) = 120
Therefore, the total number of shirts available is 120
<span>A pearl is not a mineral because it is created artificially. It is a gemstone, not a mineral because it is a composite of mineral Aragonite and a protein compound which is called conchiolin. Pearls are formed by organic and living organisms which is preserved to become a gemstone.</span>
