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3 years ago

What is the the area of the triangle in the composite figure above?

Mathematics

1 answer:

Flauer [41]3 years ago

8 0

Answer:

$10 in^{2}$

Step-by-step explanation:

Subtract 13 from 17 to get the length of the base. Then add the 1, 1, and 3 together to get the height. Then you use the area formula for a triangle.

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Rotate the given triangle 90°

kati45 [8]

9514 1404 393

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 ...

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

_____

The transformation of each ordered pair is ...

(x, y) ⇒ (-y, x)

4 0

3 years ago

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Which of the following expressions has a value of 3? -6 divided -2, 4 -(-1),(-1)(-3), (-2) - 1, 15 divided by -5, 4 + 1

pav-90 [236]

Answer:

(-1)(-3)

Step-by-step explanation:

When two negatives are multiplied it always equals a positive making it the only one that equals positive 3.

4 0

3 years ago

Let s(t) = 36 − t. find the equation of the tangent line to s(t) when t = 0.

tatiyna

When t = 0 the point on the graph is (0,36). Your equation is just a line and always has the same tangent line so your equation is the same s = 36 - t.

5 0

3 years ago

Help please....If you can, draw on the attachments.

Dafna1 [17]

Answer: Well this doesnt make sense because the drawing is 8+2

Step-by-step explanation:

5 0

2 years ago

How many reflectional symmetries does a regular decagon have ?

pentagon [3]

The answer to this is ten.

6 0

4 years ago

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