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Mrrafil [7]
3 years ago
6

Janet is testing the effectiveness of four different plant foods. She plants four identical seeds in four identical pots, supply

ing each with a different type of plant food. After six weeks she finds that the four plants have grown to different heights.
Can Janet conclude that food W is the most effective of the four plant foods?
A. Yes; since the plant that was fed food W grew to the greatest height, the only explanation is that food W is the most effective.
B. No; Janet needs to test many more different types of plant food before she can reach that conclusion.
C. Yes; 18 inches is the tallest a plant of that species has ever grown.
D. No; Janet needs to conduct repeated trials on many different plants before she can make that conclusion.
Computers and Technology
2 answers:
alexandr1967 [171]3 years ago
6 0

Answer:

d

Explanation:

galina1969 [7]3 years ago
3 0

D, because you need multiple trials to prove something

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Helen [10]

Answer:

SUM, AVERAGE, MAX,MIN

Explanation:

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C++ a. Write a program that uses the function isPalindrome given in example 6-6 (Palindrome). Test your program on the followinn
Whitepunk [10]

Answer:

#include <iostream>

#include <array>

using namespace std;

bool isPalindrome(string str)  

{  

int length = str.length();  

for (int i = 0; i < length / 2; i++)  

 if (toupper(str[i]) != toupper(str[length - 1 - i]))

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int main()

{

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for (auto test : tests) {

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}

}

Explanation:

The toupper() addition forces characters to uppercase, thereby making the comparison case insensitive.

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