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SVEN [57.7K]
2 years ago
10

Describe the transformations that will map triangle A to triangle B and illustrate the similarity between the two triangles.

Mathematics
2 answers:
blagie [28]2 years ago
8 0
The answer is D
Reflect triangle a across the x-axis and then rotate triangle A 90 counterclockwise about the origin
Rus_ich [418]2 years ago
6 0
Honestly I’m not for sure but I’m think it’s either a or b
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There are values of t so that sin t=.35 and cos t=.6
NISA [10]

Recall the fundamental rule of trig:

\sin^2(x)+\cos^2(x)=1 \quad\forall x \in \mathbb{R}

So, there exists an angle t such that

(0.6,0.35)=(\sin(t),\cos(t))

if and only if

\sin^2(t)+\cos^2(t)=0.6^2+0.35^2=1

Working out the numbers, we get

0.6^2+0.35^2=0.36+0.1225=0.4825\neq 1

So, there doesn't exist a number t such that

(0.6,0.35)=(\sin(t),\cos(t))

7 0
3 years ago
Look at the set of quadrilaterals in the coordinate plane shown below.
morpeh [17]

The true statement about the set of quadrilaterals in the coordinate plane is B. Because quadrilateral ABCD can be reflected across the x -axis, then rotated 90° counterclockwise about the origin, and then dilated about the origin by a scale factor of 2 to obtain quadrilateral A'B'C'D' , then quadrilateral ABCD is similar to quadrilateral A'B'C'D'.

<h3>What is a quadrilateral?</h3>

A quadrilateral is a polygon having four sides, four angles, and four vertices.

In this case, because quadrilateral ABCD can be reflected across the x -axis, then rotated 90° counterclockwise about the origin, and then dilated about the origin by a scale factor of 2 to obtain quadrilateral A'B'C'D' , then quadrilateral ABCD is similar to quadrilateral A'B'C'D'.

Learn more about quadrilateral on:

brainly.com/question/23935806

#SPJ1

3 0
2 years ago
If y varies directly as (x+3) and inversely as (x-3) and y=21 when x=4, what is the equation for y in terms of x?
igor_vitrenko [27]
\bf \qquad \qquad \textit{double proportional variation}&#10;\\\\&#10;\begin{array}{llll}&#10;\textit{\underline{y} varies directly with \underline{x}}\\&#10;\textit{and inversely with \underline{z}}&#10;\end{array}\implies y=\cfrac{kx}{z}\impliedby &#10;\begin{array}{llll}&#10;k=constant\ of\\&#10;\qquad  variation&#10;\end{array}\\\\&#10;-------------------------------\\\\

\bf \textit{\underline{y} varies directly as (x+3) and inversely as (x-3)}\implies y=\cfrac{k(x+3)}{x-3}&#10;\\\\\\&#10;\textit{we also know that }&#10;\begin{cases}&#10;y=21\\&#10;x=4&#10;\end{cases}\implies 21=\cfrac{k(4+3)}{4-3}\implies 21=\cfrac{k(7)}{1}&#10;\\\\\\&#10;\cfrac{21}{7}=k\implies 3=k\qquad thus\qquad \qquad \boxed{y=\cfrac{3(x+3)}{x-3}}
6 0
3 years ago
What number is 3 more then 20% of 40%?
Kamila [148]

Answer:

8

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Factored form: f(x) = (x+1)^2(3x+5)^2(x-2) <br> What is this equation in standard form.
9966 [12]

Answer:

9x^{5}+30x^{4}-2x^{3}-108x^{2}-135x-50

Step-by-step explanation:

see below, if you have any questions leave a comment  

8 0
3 years ago
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