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2 years ago

Before using the data type string, the program must include the header file ____.

1 answer:

3 0

Hello <span>Enriqueliz5443</span><span>

Answer: Before using the data type string, the program must include the header file string

Hope this Helps!
-Chris</span>

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erma4kov [3.2K]

Answer:

pok

Explanation:

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2 years ago

Read 2 more answers

Sequentially prenumbered forms are an example of a(n): a. Processing control. b. Data transmission control. c. Input control. d.

Stella [2.4K]

Answer:

Sequentially pre-numbered forms are an example of a(n):

c. Input control.

Explanation:

Such a type of control in which keep updating data on the basis of monitoring of data is known as Processing Control. Data matching is an example of processing control.
Data Transmission Control is such a control in which transmission of data is done. Parity check is an example of data transmission control.
Input Control is such type of control in which user can perform different tasks like adding text. Sequentially pre-numberered forms and turn around documents are an example of an input control.
Examples of Data entry control include batch total and validity check.

7 0

2 years ago

A computer retail store has 15 personal computers in stock. A buyer wants to purchase 3 of them. Unknown to either the retail st

Dima020 [189]

Answer:

a. 1365 ways

b. Probability = 0.4096

c. Probability = 0.5904

Explanation:

Given

PCs = 15

Purchase = 3

Solving (a): Ways to select 4 computers out of 15, we make use of Combination formula as follows;

$^nC_r = \frac{n!}{(n-r)!r!}$

Where $n = 15\ and\ r = 4$

$^{15}C_4 = \frac{15!}{(15-4)!4!}$

$^{15}C_4 = \frac{15!}{11!4!}$

$^{15}C_4 = \frac{15 * 14 * 13 * 12 * 11!}{11! * 4 * 3 * 2 * 1}$

$^{15}C_4 = \frac{15 * 14 * 13 * 12}{4 * 3 * 2 * 1}$

$^{15}C_4 = \frac{32760}{24}$

$^{15}C_4 = 1365$

<em>Hence, there are 1365 ways </em>

Solving (b): The probability that exactly 1 will be defective (from the selected 4)

First, we calculate the probability of a PC being defective (p) and probability of a PC not being defective (q)

<em>From the given parameters; 3 out of 15 is detective;</em>

So;

$p = 3/15$

$p = 0.2$

$q = 1 - p$

$q = 1 - 0.2$

$q = 0.8$

Solving further using binomial;

$(p + q)^n = p^n + ^nC_1p^{n-1}q + ^nC_2p^{n-2}q^2 + .....+q^n$

Where n = 4

For the probability that exactly 1 out of 4 will be defective, we make use of

$Probability = ^nC_3pq^3$

Substitute 4 for n, 0.2 for p and 0.8 for q

$Probability = ^4C_3 * 0.2 * 0.8^3$

$Probability = \frac{4!}{3!1!} * 0.2 * 0.8^3$

$Probability = 4 * 0.2 * 0.8^3$

$Probability = 0.4096$

Solving (c): Probability that at least one is defective;

In probability, opposite probability sums to 1;

Hence;

<em>Probability that at least one is defective + Probability that at none is defective = 1</em>

Probability that none is defective is calculated as thus;

$Probability = q^n$

Substitute 4 for n and 0.8 for q

$Probability = 0.8^4$

$Probability = 0.4096$

Substitute 0.4096 for Probability that at none is defective

Probability that at least one is defective + 0.4096= 1

Collect Like Terms

Probability = 1 - 0.4096

Probability = 0.5904

8 0

2 years ago

Write a program that prompts the user for two numbers then outputs the result of dividing the first number by the second number

Rainbow [258]

The program is

num = int(input("Enter Numerator "))

den = int(input("Enter Denominator "))

print("quotient is ",str(num//den)," remainder is ", str(num%den))

<h3>How to create a division sign in HTML?</h3>

To create a division sign ( ÷ ) in HTML you can use any of the following codes.

÷

&div;

÷

<h3>How to divide in computer programming?</h3>

Perl code

use strict;

my $first = 15;

my $second = 5;

my $answer = $first / $second;

print "You get $answer if you divide $first by $second";

When the script above is run, it displays "You get 3 if you divide 15 by 5" on the screen.

To learn more about programming, refer

https://brainly.ph/question/4743

#SPJ4

5 0

1 year ago

According to the order of operation in Excel: a. Excel performs exponentiation, then multiplication, then division, then subtrac

Ilya [14]

Answer:

Option is b is correct answer. Excel performs exponentiation, then multiplication and division, then addition, and subtraction, it is correct order of operation in Excel. It is important to remember when you write any formula in Excel having different mathematical operators like +/ -/ ^/ etc, it follows a specific order and performs calculations in specific order which is termed as order of operator precedence. Each of mathematical operator has its precedence and executes in a special order set by Excel.

Explanation:

As we already know order of precedence of each mathematical operator is different in Excel. The order of operations for Excel is as follows:

Evaluate elements in parentheses.
Evaluate 'ranges' ().
Evaluate 'intersections' (empty spaces).
Evaluate 'unions' (,).
Perform negation (-).
determine percentages (%).
Perform exponentiation (^).
Perform multiplication (*) and division (/), both are of equal precedence.
Perform addition (+) and subtraction (-), both are of equal precedence.
Evaluate text operators like (&).

Perform comparisons like (=, <>, <=, >=).

Answer details

Grade: Middle

Subject: Computers and Technology

Chapter: Order of precedence of mathematical operators

Keywords: precedence in Excel, operators precedence etc

7 0

3 years ago