What is an irrational number

2 answers:

alexandr1967 [171]3 years ago

6 0

An irrational number is a number that cannot be written as a fraction of an integer over an integer. When written as a decimal, an irrational number never ends and does not repeat.

timofeeve [1]3 years ago

3 0

An irrational number is a number that can't be written as a simple fraction such as pi because you can't turn pi into a fraction.

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how many gallons of a 80% antifreeze solution must be mixed with 70 gallons of 30% antifreeze to get a mixture that is 70% antif

Fynjy0 [20]

Let x=gallons of 80% solution to be mixed
x+80=gallons go final 70% mixture
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80%*x+30%*80=70%*(x+80)
.8x+24=.7x+56
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x=320
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3 years ago

2sinx-1= 0 Pls help me solve

Pani-rosa [81]

Answer:

x = 30°

Step-by-step explanation:

2sinx - 1 = 0

2sinx = 1

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x = 30°

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2 years ago

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Law Incorporation [45]

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3 years ago

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Ray Of Light [21]

Answer:

x = 14

Step-by-step explanation:

In the triangle O is the centroid.

Now, we know that the centroid divides the medians in the 2 : 1 ratio that means the distance from the centroid to the vertex and the distance from the centroid to the opposite side remains in 2 : 1 ratio.

So, from the given diagram we can write

$\frac{3x}{2x - 7} = \frac{2}{1}$