All categories

3 years ago

Is 19/9 a rational or irrational number

Mathematics

1 answer:

Darya [45]3 years ago

7 0

Answer:

Rational.

Step-by-step explanation:

This is because

$19 \div 9 = 2.1111111...$

Where the product is a recurring decimal and recurring /repeating decimals are rational.

Hope this helps... :-)

You might be interested in

4 For each nth term, find the 50th term. a 4n - 5

alukav5142 [94]

4 x 50 = 200
200 - 5 = 195
195 is the answer hope this helps

5 0

3 years ago

Read 2 more answers

Please help this is the only question im stuck on

Lemur [1.5K]

I think a, bc for the x it’s 2x and the y is +5

8 0

3 years ago

Find the following limit or state that it does not exist. ModifyingBelow lim With x right arrow minus 2 StartFraction 3 (2 x min

leva [86]

Answer:

-60

Step-by-step explanation:

The objective is to state whether or not the following limit exists

$\lim_{x \to -2} \frac{3(2x-1)^2 - 75}{x+2}$ .

First, we simplify the expression in the numerator of the fraction.

$3(2x-1)^2 -75 = 3(4x^2 - 4x +1) -75 = 12x^2 - 12x + 3 - 75 = 12x^2 - 12x -72$

Now, we obtain

$12(x^2-x-6) = 12(x+2)(x-3)$

and the fraction is transformed into

$\frac{3(2x-1)^2 - 75}{x+2} = \frac{12(x+2)(x-3)}{x+2} = 12 (x-3)$

Therefore, the following limit is

$\lim_{x \to -2} \frac{3(2x-1)^2 - 75}{x+2} = \lim_{x \to -2} 12(x-3) = 12 \lim_{x \to -2} (x-3)$

You can plug in $-2$ in the equation, hence

$12 \lim_{x \to -2} (x-3) = 12 (-2-3) = -60$

6 0

3 years ago

What go in the blanks?

Gnesinka [82]

Answer:NUMERATORS

Step-by-step explanation:

5 0

3 years ago

Work out the surface area of the solid cuboid H=2cm W=4cm L=5cm

Nitella [24]

Answer:

total surface area = 76 sq.cm

Step-by-step explanation:

total surface area of cuboid = 2 ( lb + lh + bh )

( where l is length , b is width and h is height )

so, surface area :

= 2[ (5×4) + (5×2) + (2×4) ]

= 2 [ 20 + 10 + 8 ]

= 2 × 38

= 76 sq.cm

6 0

3 years ago