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3 years ago

Use one of the triangles to approximate PQ in the triangle below.

Mathematics

1 answer:

s2008m [1.1K]3 years ago

4 0

Answer:

The answer is B 5.4 units

Step-by-step explanation:

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Will give 20 pts! pls answer

Lena [83]

It would be Felix:

5/4 = 1.25

Hope this helps!

8 0

3 years ago

Read 2 more answers

If the parent function f(x) = (2x − 3)3 is transformed to g(x) = (-2x + 3)3, which type of transformation occurs? A. vertical sh

exis [7]

Answer:

The answer is C

Step-by-step explanation:

We have f(x) function as below:

$f(x)=(2x-3)^3$

and the converted function g(x) is as mentioned below:

$g(x)=(-2x+3)^3$

We can observe that:

f(x)=-g(x)

Therefore it can be said that this function reflected horizontally.

Note: please check the plot attached.

4 0

4 years ago

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Suppose a polygon has 72 sides. If the polygon is regular, what is its angle of rotation?

satela [25.4K]

The angle of rotation is the minimum angle in which you rotate a regular polygon such that the figure appears unchanged. The formula for that is dividing one angle of revolution by its number of sides.

Angle of Rotation = 360°/n
Angle of Rotation = 360°/72 = 5°

4 0

4 years ago

Sin^2(x/2)=sin^2x <br> Find the value of x

Veronika [31]

$\sin^2\dfrac x2=\sin^2x$
$\dfrac{1-\cos x}2=1-\cos^2x$
$1-\cos x=2-2\cos^2x$
$2\cos^2x-\cos x-1=0$
$(2\cos x+1)(\cos x-1)=0$
$\implies\begin{cases}2\cos x+1=0\\\cos x-1=0\end{cases}$ $\implies\begin{cases}\cos x=-\frac12\\\cos x=1\end{cases}$

The first case occurs in $0\le x$ for $x=\dfrac{2\pi}3$ and $x=\dfrac{4\pi}3$ . Extending the domain to account for all real $x$ , we have this happening for $x=\dfrac{2\pi}3+2n\pi$ and $\dfrac{4\pi}3+2n\pi$ , where $n\in\mathbb Z$ .

The second case occurs in $0\le x$ when $x=0$ , and extending to all reals we have $x=2n\pi$ for $n\in\mathbb Z$ , i.e. any even multiple of $\pi$ .

6 0

3 years ago

Based on the figure below, what is the value of x?<br> BRAINLIEST<br> PLEASE HELP<br> SHOW WORK

Semenov [28]

Answer:

Step-by-step explanation:

5x+15+20=90

5x+35=90

-35 from both sides

5x=55

divide both sides by 5

x=11

7 0

3 years ago

Read 2 more answers