Fill in the definition for the procedure accumulate, which combines the first n natural numbers according to the following parameters: combiner: a function of two arguments
start: a number with which to start combining
n: the number of natural numbers to combine
term: a function of one argument that computes the nth term of a sequence

For example, we can find the product of all the numbers from 1 to 5 by using the multiplication operator as the combiner, and starting our product at 1:
answer this in tail-recusive form of scheme programming language
(define (accumulate-tail combiner start n term)
'YOUR-CODE-HERE
)

Creating "smart interfaces" in all sectors of industry, government, and the public arena is one of the fastest growing hct areas. these interfaces model, interpret, and analyze such human characteristics as speech, gesture, and vision. the field of biometrics, in which humans authenticate themselves to machines, is an area of considerable interest to hct practitioners. fingerprint scans are one of the most frequently used biometric options, and this article, biometric student identification: practical solutions for accountability & security in schools, makes a case for the implementation of fingerprint scans in schools. critique the article, and answer the following questions: according to the author, what are the main benefits of adopting fingerprint scans in schools for student identification? according to the author, what are the main drawbacks of adopting fingerprint scans in schools for student identification? do you agree with the author's assessment of the pl

The keyboard usually has six rows of keys. which of the following is not one of the key group categories? letter keys number keys control keys graphic keys

Every telecommunication setup uses two devices: one device to transmit data and one device to receive data. which device transmits frequencies to mobile phones? towers transmit frequencies to mobile phones.