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Hoochie [10]
3 years ago
11

Which two transformations are applied to pentagon ABCDE to create A″B″C″D″E″?

Mathematics
1 answer:
Naya [18.7K]3 years ago
4 0

Answer:

A. Translated according to the rule (x, y) → (x + 7, y + 1) and reflected across the x‒axis

Step-by-step explanation:

Point A is at (-4, -2). Point A'' is at (3, 1). 7 is added to -4 to get 3. 1 is added to -2 to get -1. Now we have (3, -1). The rule for reflecting across the x-axis is (x, -y). (or x and the opposite of y). So now we have (3, 1) which is the location of A''.

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Verify each trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side
lorasvet [3.4K]

Answer:

Step-by-step explanation:

1.

cot x sec⁴ x = cot x+2 tan x +tan³x

L.H.S = cot x sec⁴x

       =cot x (sec²x)²

       =cot x (1+tan²x)²     [ ∵ sec²x=1+tan²x]

       =  cot x(1+ 2 tan²x +tan⁴x)

       =cot x+ 2 cot x tan²x+cot x tan⁴x

        =cot x +2 tan x + tan³x        [ ∵cot x tan x =\frac{ \textrm{tan x }}{\textrm{tan x}} =1]

       =R.H.S

2.

(sin x)(tan x cos x - cot x cos x)=1-2 cos²x

 L.H.S =(sin x)(tan x cos x - cot x cos x)

          = sin x tan x cos x - sin x cot x cos x

           =\textrm{sin x cos x }\times\frac{\textrm{sin x}}{\textrm{cos x} } - \textrm{sinx}\times\frac{\textrm{cos x}}{\textrm{sin x}}\times \textrm{cos x}

           = sin²x -cos²x

           =1-cos²x-cos²x

           =1-2 cos²x

           =R.H.S

         

3.

1+ sec²x sin²x =sec²x

L.H.S =1+ sec²x sin²x

         =1+\frac{{sin^2x}}{cos^2x}                       [\textrm{sec x}=\frac{1}{\textrm{cos x}}]

         =1+tan²x                        [\frac{\textrm{sin x}}{\textrm{cos x}} = \textrm{tan x}]

         =sec²x

        =R.H.S

4.

\frac{\textrm{sinx}}{\textrm{1-cos x}} +\frac{\textrm{sinx}}{\textrm{1+cos x}} = \textrm{2 csc x}

L.H.S=\frac{\textrm{sinx}}{\textrm{1-cos x}} +\frac{\textrm{sinx}}{\textrm{1+cos x}}

       =\frac{\textrm{sinx(1+cos x)+{\textrm{sinx(1-cos x)}}}}{\textrm{(1-cos x)\textrm{(1+cos x})}}

      =\frac{\textrm{sinx+sin xcos x+{\textrm{sinx-sin xcos x}}}}{{(1-cos ^2x)}}

     =\frac{\textrm{2sin x}}{sin^2 x}

      = 2 csc x

    = R.H.S

5.

-tan²x + sec²x=1

L.H.S=-tan²x + sec²x

        = sec²x-tan²x

        =\frac{1}{cos^2x} -\frac{sin^2x}{cos^2x}

        =\frac{1- sin^2x}{cos^2x}

        =\frac{cos^2x}{cos^2x}

        =1

     

       

8 0
4 years ago
What 2 decimals make 5.036
salantis [7]
2 is the tens position meaning 2 tens 
8 0
3 years ago
Read 2 more answers
A hippopotamus can stay under water for 15 minutes. A sea cow can stay under water y minutes.This is 11 minutes longer than one-
egoroff_w [7]

Answer:

<em>The sea cow can stay under water for 16 minutes.</em>

Step-by-step explanation:

A hippopotamus can stay under water for 15 minutes.

A sea cow can stay under water y minutes and this is 11 minutes longer than one-third the time a hippopotamus can.

So, "11 minutes longer than one-third the time a hippopotamus can" means:  [\frac{1}{3}(15)+11] minutes

Thus, the equation will be:   y= \frac{1}{3}(15)+11

Now, solving the above equation, we will get.........

y= \frac{1}{3}(15)+11 \\ \\ y=5+11= 16

So, the sea cow can stay under water for 16 minutes.

8 0
3 years ago
What is 1 1/4 divided by 5/7
mars1129 [50]

Answer:

1.75

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Al final de la carrera de una famosa maratón, tres amigos, Hermes, Benito y
Fantom [35]

Answer:

Benito llega en segundo lugar.

Eladio llega en sexto lugar

Hermes llega en noveno lugar.

Step-by-step explanation:

Tenemos 3 amigos:

Benito

Hermes

Eladio

Hay 3 posiciones:

segundo

sexto

noveno.

Sabemos que:

Benito llegó antes que Hermes.

Cuando Eladio estaba llegando a la meta, solo Benito estaba descansando.

Es decir, cuando Eladio llego a la meta, Hermes aún no había llegado.

Eladio llegó a la meta antes que Hermes, pero después que Benito.

Entonces el primero en llegar es Benito, el segundo es Eladio y el tercero será Hermes.

Con la data inicial podemos decir que:

Benito llega en segundo lugar.

Eladio llega en sexto lugar

Hermes llega en noveno lugar.

3 0
3 years ago
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