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3 years ago

Rational or Irrational? Help?

Mathematics

1 answer:

mote1985 [20]3 years ago

8 0

Answer:

The expression is irrational.

Step-by-step explanation:

Irrational and rational numbers are all real numbers. However, rational numbers can also be expressed in terms of a fraction where as irrational numbers are composed of non-terminating and non-repeating decimals. So, irrational numbers are numbers that when calculated produce a decimal that has no end and has no pattern of repetition. Anytime you calculate with an irrational number, no matter multiplication, division, subtraction or addition, the answer will always be irrational. In the given expression, $\sqrt{3}$ is an irrational number because it is an imperfect square and will produce a non-terminating and non-repeating decimal when solved:

$\sqrt{3}$ = 1.7320508...

Since the expression contains an irrational number, the solution must also be irrational.

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The following table shows how far a runner has gone in t minutes. Which of the following represents this information?

BigorU [14]

Answer:

The correct answer is B) d=250t.

Step-by-step explanation:

B is the correct answer because the total distance (d) equals 250 multiplied by the minutes (t) the runner has ran.

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3 years ago

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alukav5142 [94]

62 inches.

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3 years ago

Simplify the following Expression by combining like terms: y+ 3x + 4y + 2x + 3y + 3x

lys-0071 [83]

Answer:

8x+8y

Step-by-step explanation:

y + 3x + 4y + 2x + 3y +3x

With this we group x with x and y with y and in ascending order so x comes before y

3x+2x+3x

And the y with y

y+4y+3y

Which is;

3x+2x+3x+y+4y+3y

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8 0

3 years ago

F(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the value of g(f(-2)

vovangra [49]

Answer:

g(f(- 2)) = 91

Step-by-step explanation:

Evaluate f(- 2) then substitute the value obtained into g(x), that is

f(- 2) = - 2 + 7 = 5 , then

g(5) = 4(5)² - 9 = 4(25) - 9 = 100 - 9 = 91

7 0

3 years ago

Consconsiderando la función f(x)=x² y la función f (x)=(x+1)²-4responde lo siguiente:

erica [24]

Answer:

Step-by-step explanation:

a) f(x) = x² y f(x) = (x+1)²-4 tienen la misma forma y orientación.

b) f(x) = x² se encuentra debajo y a la izquierda de f(x) = (x+1)²-4.

c) En la función f(x) = (x + 1)²-4 el vértice tiene un desplazamiento horizontal, 1 unidad hacia la izquierda.

d) el vértice de la función f(x) = (x + 1)²-4 está desplazado verticalmente, 4 unidades hacia abajo.

7 0

4 years ago