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2 years ago

Why is 0.71875 a rational number

Mathematics

2 answers:

MrMuchimi2 years ago

6 0

Answer:

Because it is terminating.

Step-by-step explanation:

0.71875 is rational because it is terminating (has a clear end). If it were a bunch of random numbers that never ended, then it would be irrational.

slavikrds [6]2 years ago

5 0

Answer:

It can be written as a fraction with integer numerals.

Step-by-step explanation:

One easy rule to follow is 'Can it be written as a fraction with integer denominators and numerators?'. If so, then yes, it is rational.

Something like pi, which can not be represented as a fraction is not rational.

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HELP ASAP!! Identify the matrix transformation of ΔPQR, which has coordinates P(−5, −2),Q(−6, −3), and R(−2, −3), for reflection

podryga [215]

Answer:

Matrix transformation = $\left[\begin{array}{ccc}-1&0\\0&1\end{array}\right]$

Vertices of the new image: P'= (5,-2), Q'= (6,-3), R'= (2,-3)

Step-by-step explanation:

Transformation by reflection will produce a new congruent object in different coordinate. Reflection to y-axis made by multiplying the x coordinate with -1 and keep the y coordinate unchanged. The matrix transformation for reflection across y-axis should be: $\left[\begin{array}{ccc}-1&0\\0&1\end{array}\right]$ .

To find the coordinate of the vertices after transformation, you have to multiply the vertices with the matrix. The calculation of the each vertice will be:

P'= $\left[\begin{array}{ccc}-1&0\\0&1\end{array}\right]$ $\left[\begin{array}{ccc}-5\\-2\end{array}\right]$ = (5,-2)

Q'= $\left[\begin{array}{ccc}-1&0\\0&1\end{array}\right]$ $\left[\begin{array}{ccc}-6\\-3\end{array}\right]$ = (6,-3)

R'= $\left[\begin{array}{ccc}-1&0\\0&1\end{array}\right]$ $\left[\begin{array}{ccc}-2\\-3\end{array}\right]$ = (2,-3)

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kiruha [24]

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liq [111]

I think it’s the last one

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(4x+3) = (7x-6)<br><br> more math :)

Ilia_Sergeevich [38]

Answer:

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Step-by-step explanation:

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Read 2 more answers

Please help me solve this equation 2x+y=10

krek1111 [17]

This is the answer
$2x + y = 10 \\ y = - 2x + 10$

if substitute 1 and 2 and 3 as x then the points will be :
$\binom{x}{y} \: \: \: \: \: \: \binom{1}{8} \: \: \: \: \: \: \binom{2}{6} \: \: \: \: \: \: \binom{3}{4}$

and that's the picture

good luck

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2 years ago