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2 years ago

Explain why each statement is not a good definition: A pen is a writing instrument

Mathematics

2 answers:

Vilka [71]2 years ago

4 0

A pen is a writing instrument but it is also a play area like a pig pen.<span />

mel-nik [20]2 years ago

3 0

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.If the side of an equilateral triangle is 6cm, then the area of triangle is

Oksi-84 [34.3K]

Answer:

$9\sqrt{3}$ cm^2

Step-by-step explanation:

area of an equilateral triangle = $\frac{s^{2} \sqrt{3} }{4}$ (s = length of the side)

area = $\frac{6^{2}\sqrt{3} }{4}$

area = $\frac{36\sqrt{3} }{4}$

area = $9\sqrt{3}$ cm^2

4 0

2 years ago

Which expressions are equivalent to when x0? Check all that apply.

Genrish500 [490]

We have that

$\frac{(x+4)}{3} / \frac{6}{x} = \frac{x*(x+4)}{3*6} \\ \\ = \frac{( x^{2} +4x)}{18}$

therefore

case a)
$\frac{(x+4)}{3} * \frac{x}{6}$
Is equivalent

case b)
$\frac{6}{x} * \frac{(x+4)}{3}$
Is not equivalent

case c)
$\frac{x}{6} * \frac{(x+4)}{3}$
Is equivalent

case d)
$\frac{(2 x^{2} +4x)}{6}$
Is not equivalent

case e)
$\frac{(2 x^{2} +4x)}{18}$
Is equivalent

Hence

the answer is

$\frac{(x+4)}{3} * \frac{x}{6}$

$\frac{x}{6} * \frac{(x+4)}{3}$

$\frac{(2 x^{2} +4x)}{18}$

3 0

2 years ago

Read 2 more answers

iogann1982 [59]

Okay thanks for letting me know I love you love love bye

4 0

2 years ago

You believe that eating an apple a day is healthy and want to design an experiment to find out. You have available 40 volunteers

Gwar [14]

The best design for this experiment would be a repeated measures design. This is ideal to determine if eating an apple makes you healthy.

<h3>What is an experimental design?</h3>

An experimental design refers to the general structure of an experiment including how people are distributed into the control and experimental group to test a specific phenomenon.

<h3>What is a repeated measures design?</h3>

In a repeated measures design all participants are both parts of the control group, in this case, people who do not eat apples, and the experimental group, or people who eat apples.

<h3>What does this design imply?</h3>

In the case of determining if eating an apple every day, this design implies:

All participants will be asked to not eat apples every day for a specific period such as one or two months, and health levels will be measured during this time.
After the first step, all participants will be asked to eat an apple every day during the period, and their health will be measured.
The researcher can compare the results of each participant, which is more accurate than comparing one participant to another.

Learn more about experiments in: brainly.com/question/1452319

7 0

2 years ago

Convert the following to Standard Form: (x - 5)^2 + 4

netineya [11]

Answer:

x² - 10x + 29

Step-by-step explanation:

The standard form of a quadratic is , ax² + bx + c (a ≠ 0 )

Given

(x - 5)² + 4 ← expand factor using FOIL

= x² - 10x + 25 + 4

= x² - 10x + 29 ← in standard form

5 0

2 years ago