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3 years ago

Triangle A'B'C'is the result of reflecting triangle ABC across the line l

Mathematics

1 answer:

Hoochie [10]3 years ago

6 0

9514 1404 393

Answer:

b, c

Step-by-step explanation:

Reflection across a line is a "rigid" transformation, so linear measures and angle measures remain unchanged. (b and c are true statements)

Reflection across a line skew to the y-axis will mean that any segment originally perpendicular to the y-axis will not be after the reflection. ('a' is not a true statement)

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Diano4ka-milaya [45]

Answer:

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Step-by-step explanation:

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2 years ago

Simply by using rationalize denominators.<br><br> 2a^-1/2

Advocard [28]

Pemdas, so exponent before multiply
so do a^-1/2 then multiply it by 2

remember that $x^ \frac{m}{n}= \sqrt[n]{x^m}$ and
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therefor, $a^ \frac{-1}{2}= \frac{1}{a^ \frac{1}{2} } = \frac{1}{ \sqrt{a} }$
the we multiply by 2

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3 years ago

Twelve subtracted from twelve times a number is 240. What is the number?

vovangra [49]

Answer:

Step-by-step explanation:

Let x = the number

12x-12 = 240

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x = 21

5 0

2 years ago

How do you subtract 42 minutes from 1 hour ,25 minutes.explain what to do and why you do it?

aksik [14]

So 1 hour= 60 minutes
60+25= 85 minutes
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3 0

3 years ago

The quotient of the sum of 3 and a number and 6 is less than -2

GalinKa [24]

Answer: 3 + n / 6 is less than -2

Explanation:

It’s an inequality:

Quotient: division

Sum: addition

A number: the variable, n

7 0

3 years ago

Read 2 more answers