5.78778778 ….. is an irrational number because the decimal can't be represented as a ratio or fraction.
<h3>What are irrational numbers?</h3>
Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, x/y where x and y are integers.
In other words, an Irrational Number is a real number that cannot be written as a simple fraction.
For example π = 3.1459....
π cannot be written as a fraction or ratio.
The decimals of irrational number goes on forever without repeating.
The decimals are continuous.
Therefore, 5.78778778 ….. is an irrational number because the decimal can't be represented as a ratio or fraction.
learn more on irrational number here: brainly.com/question/3386568
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1) Never heard of someone referring to the Law of Levers before, must be showing my age. A system as you describe is at equilibrium when the net torque is equal to zero. Since torque is Fr=mgr so for this system we have a sum of:
27g*10+30g*x=0 The sum must be zero to be at equilibrium, dividing both sides by g you have:
270+30x=0
270=-30x
x=-9
The negative just indicates that the magnitude of 9 is on the opposite side of the fulcrum, so x=9ft in magnitude.
2) Inverse variation is of the form y=k/x, in this case we are given a point so we can solve for the constant, k, of variation...
y=k/x, and we are given y=-12 when x=5 so
-12=k/5
k=-60 so the equation is:
y=-60/x which can be expressed as
xy=-60
Answer:
The cost of each sweater was $35
Step-by-step explanation:
To find this, first find out the cost of all the sweaters added together. We can get this by subtracting the cost of the skit from the total.
$160 - $20 = $140
Now to find the individual cost, divide the cost of all the sweaters by the number of sweaters.
$140/4 = $35
Answer:
-2.5
Step-by-step explanation:
there no other number available, But -2.4, -2.3, -2.2 can also be seem to as the middle
104.818891427
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