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4 years ago

Which transformation does not preserve size ? Dilation rotation translation line reflection

Mathematics

2 answers:

Rudiy274 years ago

8 0

Dilation. Dilation is the only transformation to change size

anzhelika [568]4 years ago

7 0

Dilation. Dilation augments or shrinks a shape, while rotation and line reflection keep the shape the same size.

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" complete the statement, 36x^3a+45xa^2=9xa (.....................) " it's the parenthesis i need to fill in and im so lost PLEA

timofeeve [1]

Answered on messages

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3 years ago

If (2−√3) is a root of a polynomial with integer coefficients, which of the following must be another root?

mr_godi [17]

Answer:

2+√3

Step-by-step explanation:

We know that roots with square roots come in pairs

so if we have a+ sqrt(b), we will also have a - sqrt(b)

Since one of the roots is 2 -sqrt(3), it must have another root of 2+ sqrt(3)

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4 years ago

Which of the following is the correct order in which to do mathematical operations?

Tanya [424]

Answer:

ODMAS

Step-by-step explanation:

ODMAS

First division then multiplication then addition and then subtraction

6 0

3 years ago

Read 2 more answers

Compare the function ƒ(x) = –x2 + 4x – 5 and the function g(x), whose graph is shown. Which function has a greater absolute maxi

svp [43]

Answer:

A) g(x) has a greater absolute maximum.

Step-by-step explanation:

Given graph of g(x) which is a Parabola

1. Opens downwards

2. The absolute maximum (vertex) is at around (3.5, 6)

i.e. value of absolute maximum is 6.

Another function:

$f(x) =-x^{2}+4x-5$

Let us convert it to vertex form to find its vertex.

Taking - sign common:

$f(x) =-(x^{2}-4x+5)$

Now, let us try to make it a whole square,

Writing 5 as 4+1:

$f(x) =-(x^{2}-4x+4+1)\\\Rightarrow f(x) =-((x^{2}-2 \times 2\times x+2^2)+1)\\\Rightarrow f(x) =-((x-2)^{2}+1)\\\Rightarrow f(x) =-(x-2)^{2}-1$

Please refer to attached graph of f(x).

We know that, vertex form of a parabola is given as:

$f (x) = a(x - h)^2 + k$

Comparing the equations we get:

a = -1 (Negative value of a means the parabola opens downwards)

h = 2, k = -1

Vertex of f(x) is at (2, -1) i.e. value of absolute maximum is -1

and

Vertex of g(x) is at (3.5, 6)

i.e. value of absolute maximum is 6.

Hence, correct answer is:

A) g(x) has a greater absolute maximum.

3 0

3 years ago

Is 14 19 23 a right triangle

cestrela7 [59]

Answer:no

Step-by-step explanation: because it is an acute triangle

6 0

3 years ago