Transformational properties allow systematic movement of

1 answer:

3 0

Transformational properties allow systematic movement of congruent figures while maintaining or adjusting their orientation.

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A cafe owner wants to know how many cold drinks she is likely to sell next week

Simora [160]

she would first calculate how many drinks she sell the other weeks and know the rate at which each customer buy the drinks.

3 0

3 years ago

Prove this 1-tan^2x/1+tan^2x=cos^2x-sin^2x

tatiyna

Answer:

see explanation

Step-by-step explanation:

Using the identity

tan x = $\frac{sinx}{cosx}$

Consider the left side

$\frac{1-tan^2x}{1+tan^2x}$

= $\frac{1-\frac{sin^2x}{cos^2x} }{1+\frac{sin^2x}{cos^2x} }$ ( multiply numerator and denominator by cos²x to clear fractions

= $\frac{cos^2x-sin^2x}{cos^2x+sin^2x}$ ← ( cos²x + sin²x = 1 ]

= cos²x - sin²x

= right side , thus proven

7 0

2 years ago

Ann Landers – who wrote a daily advice column appearing in newspapers across the country – once asked her readers, "If you had i

elena55 [62]

Answer:

It shows that the survey is meaningless because of voluntary response bias.

Step-by-step explanation:

This survey in the question provides a very good example of voluntary response bias and this often overrepresents negative opinions. Now, the people who chose to respond were most likely parents who were very unhappy, and so, there is very little chance that the 10,000 respondents were representative of the population. Knowing more about her readers, or taking a sample of the sample, would not have helped.

Thus, we can conclude that ;The survey is meaningless because of voluntary response bias.

8 0

3 years ago

A face of a solid is PLZ HELP ASAP!!!!

Mice21 [21]

Answer:

I think is the option B or D

6 0

3 years ago

Read 2 more answers

Ronny read for 2.75 hours yesterday His older brother read for 1.18 hours and his younger brother read for 0.43 hours.

NARA [144]