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1 year ago

Is 1.313233 an irrational number

1 answer:

7 0

If I can write your number as a fraction with whole numbers
on top and bottom, then your number is rational.

1.313233 = 1,313,233 / 1,000,000 yay !

I did it ! Your number is rational.

Here's a hint that will give you the rational/irrational answer
to probably 95% of the examples you ever see:

Any number that you can write down on paper, completely,
using digits (and a decimal point or fraction bar if necessary)
is always rational.

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Adam is going to make concrete

hodyreva [135]

Answer:

90 kg of stone

Step-by-step explanation:

Adam has 8 x 25 = 200

19 x 22.5 = 427.5

20 x 50 = 1000

He has enough cement and sand

He needs 1090 - 1000 = 90 kg of stone

He needs 2 bags of stone

5 0

1 year ago

The oblique pyramid has a square base. What is the volume of the pyramid? 2.5cm3 5cm3 6cm3 7.5cm3

Reil [10]

Answer:

Step-by-step explanation:

The formula of a volume of a pyramid:

$V=\dfrac{1}{3}BH$

B - base area

H - height

In the base we have a square withe side s = 2cm

The formula of an area of a square with side s:

$A=s^2$

Substitute:

$A=2^2=4\ cm^2$

The height H = 3.75 cm.

Calculate the volume:

$V=\dfrac{1}{3}(4)(3.75)=\dfrac{15}{3}=5\ cm^3$

3 0

1 year ago

Read 2 more answers

Himpunan penyelesaian pertidaksamaan nilai mutlak |2x-4| > |3x+2|

Stells [14]

Answer:

The solution in interval notation is:

$(-6,\frac{2}{5})$ .

The solution in inequality notation is:

$-6$ .

Step-by-step explanation:

I think you are asking how to solve this for $x$ .

Keep in mind $|x|=\sqrt{x^2}$ .

$|2x-4|>|3x+2|$

$\sqrt{(2x-4)^2}>\sqrt{(3x+2)^2}$

If $\sqrt{u}>\sqrt{v}$ then $u>v$ .

$(2x-4)^2>(3x+2)^2$

Subtract $(2x-4)^2$ on both sides:

$0>(3x+2)^2-(2x-4)^2$

Factor the difference of squares $a^2-b^2=(a-b)(a+b)$ :

$0>((3x+2)-(2x-4))((3x+2)+(2x-4))$

Simplify inside the factors:

$0>(x+6)(5x-2)$

$(x+6)(5x-2)$

The left hand side is a parabola that faces up. I know this because the degree is 2.

The zeros of the the parabola are at x=-6 and x=2/5.

We can solve x+6=0 and 5x-2=0 to reach that conclusion.

x+6=0

Subtract 6 on both sides:

x=-6

5x-2=0

Add 2 on both sides:

5x=2

Divide both sides by 5:

x=2/5

Since the parabola faces us and $(x+6)(5x-2)$ then we are looking at the interval from x=-6 to x=2/5 as our solution. That part is where the parabola is below the x-axis. We are looking for where it is below since it says the where is the parabola<0.

The solution in interval notation is:

$(-6,\frac{2}{5})$ .

The solution in inequality notation is:

$-6$ .

6 0

2 years ago

In the current year Aveeno reported net income of $50,400which was a 12% increase over prior year net income Compute prior year

Zigmanuir [339]

Answer:

$45000

Step-by-step explanation:

Given data

Net income =$50,400

Let the prior year income be x

12/100*x +x= 50400

0.12x+x= 50400

1.12x= 50400

x= 50400/1.12

x= $45000

Hence the prior year income is $45000

4 0

1 year ago

Kali has a 666 meter ladder that she wants to use to get her cat out of a tree. She puts the base of the ladder 222 meters away

mash [69]

I think it is 123 meters Answer:

Step-by-step explanation:

5 0

2 years ago