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3 years ago

On a busy day you clock into work at 6:45 am. You clock out for lunch at 12:30 pm. how long did you work before lunch

Mathematics

1 answer:

Rasek [7]3 years ago

6 0

You worked 5:15. From 6:45 to 12 is 5:15 then as you finish at 12:30 you just have to add 30 minutes to 5:15

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Rotate the given triangle 90°

kati45 [8]

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Answer:

$\left[\begin{array}{ccc}0&-1&-2\\0&-3&5\end{array}\right]$

Step-by-step explanation:

The rotation matrix for 90° CCW is ...

$\left[\begin{array}{cc}0&-1\\1&0\end{array}\right]$

Then the rotated coordinates are ...

$\left[\begin{array}{ccc}0&-1\\1&0\end{array}\right]\cdot\left[\begin{array}{ccc}0&-3&5\\0&1&2\end{array}\right]=\left[\begin{array}{ccc}0&-1&-2\\0&-3&5\end{array}\right]$

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The transformation of each ordered pair is ...

(x, y) ⇒ (-y, x)

4 0

3 years ago

Read 2 more answers

Find the missing part.

sveta [45]

Answer:

The answer is $a = \frac{15}{4}$

Step-by-step explanation:

We have to:

$cos(\theta) = \frac{adjacent\ side}{hypotenuse}$

So, if we take the 60 degree angle of the smallest triangle, we have to:

$cos(60) = \frac{a}{x}$

We do not know x. But if we take the sine of the angle of 30 degrees and the main triangle we have:

$sin(30) = \frac{x}{15}\\\\x =\frac{15}{2}$

Then:

$cos(60) = \frac{a}{\frac{15}{2}}$

$a = cos(60)\frac{15}{2}$

$a = \frac{15}{4}$

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3 years ago

How many congruent sides are on a Right Isosceles Triangle?

disa [49]

Answer:

I think it's 2.

3 0

3 years ago

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11111nata11111 [884]

Answer:

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Step-by-step explanation:

you have to find something that is gonna divide by itself to get a postive number, so d wont work bc it would be 24 divided by 25

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viva [34]

Answer:

Step-by-step explanation:

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