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katrin2010 [14]
3 years ago
6

solving a mathematical problem without the use of paper and pencil,calculator, or computer is called using _________ math

Mathematics
2 answers:
pashok25 [27]3 years ago
5 0
It's called mental math
r-ruslan [8.4K]3 years ago
3 0
Solving a mathematical problem without the use of paper and pencil, calculator, or computer is called using mental arithmetic math.
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Step-by-step explanation:

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Question 1
erastova [34]

Based on the above scenario, the sales director conducted  an <u>experiment</u>.

  • Because a treatment  <u>was </u>applied to the sales representatives.

  • The the best statistical study for this situation because the sales director is trying to establish <u>correlation</u>.

<h3>What is an experiment?</h3>

An experiment is known to be a method that is et up with the aim to test a given hypothesis as a component of a scientific method.

In an experiment, there are the two key variables which are the independent and dependent variables. The independent variable is known to be a controlled or it is tested against the dependent variable.

See full question

Part A.

The sales director conducted a.) an experiment b.) a survey c.)an observational study because a treatment a.) was not b.)was applied to the sales representatives.

This is the best statistical study for this situation because the sales director is trying to establish a.) causality b.) correlation.

Learn more about experiment from

brainly.com/question/17274244

5 0
2 years ago
What is - 5/6k greater than equal to -15?
natta225 [31]
The answer is k is greater than or equal to 18
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3 years ago
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goblinko [34]

Answer:13/12

Step-by-step explanation:

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