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9966 [12]
3 years ago
13

Determine whether the statement is true or false. If it is true, explain why. If it is false, explain why or give an example tha

t disaproves the statement.
The inhomogeneous system of equations Ax=b, hwere b=/0, has either the trivial solution or an infinite number of the solutions.
Mathematics
1 answer:
julia-pushkina [17]3 years ago
7 0

Answer:

We can say that is FALSE because the inhomogeneous sytem Ax =b can present an unique solution x = A^{-1}b if |A|\neq 0, so this is a good counter example on which we have a vctor that is not the trivial solution and we don't have an infinite number of solution.

Step-by-step explanation:

For this case we can use the following definition:

Let A x = b a linear system, this system is called homogeneous if b =0 and in other case is called inhomogeneous.

So then for the statement "The inhomogeneous system of equations Ax=b, where b\neq0, has either the trivial solution or an infinite number of the solutions."

We can say that is FALSE because the inhomogeneous sytem Ax =b can present an unique solution x = A^{-1}b if |A|\neq 0, so this is a good counter example on which we have a vctor that is not the trivial solution and we don't have an infinite number of solution.

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How does a set of integers differs from the set of whole numbers ? Please help
MariettaO [177]
The difference between set of whole numbers and a set of integers is that:

Whole numbers = {0, 1, 2, 3, 4, 5...}
Integers = {..., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5...}

If we name contents of the first set as n, in the second set you can have 2n-1 numbers (because we count 0 only once in both sets).
7 0
3 years ago
The arithmetic sequence a; is defined by the formula:
Morgarella [4.7K]

Answer:

The sum of the first 650 terms of the given arithmetic sequence is 2,322,775

Step-by-step explanation:

The first term here is 4

while the nth term would be ai = a(i-1) + 11

Kindly note that i and 1 are subscript of a

Mathematically, the sum of n terms of an arithmetic sequence can be calculated using the formula

Sn = n/2[2a + (n-1)d)

Here, our n is 650, a is 4, d is the difference between two successive terms which is 11.

Plugging these values, we have

Sn = (650/2) (2(4) + (650-1)11)

Sn = 325(8 + 7,139)

Sn = 325(7,147)

Sn = 2,322,775

6 0
4 years ago
A tub filled with 50 quarts of water empties at a rate of 2.5 quarts per minute. let w = quarts of water left in the tub and t =
Sholpan [36]

This is a linear relationship. The slope-intercept form of the linear equation is:

y=mx+c

Where,

  • m is the rate of change (positive if increasing rate and negative if decreasing rate)
  • c is the y intercept, or the initial value

<u><em>Rate of change is 2.5 quarts per minute (it is decreasing so m is -2.5)</em></u>

<u><em>Initial value is 50 quarts, so c is 50.</em></u>

Plugging in the values we get y=-2.5x+50.


Changing variables to w instead of y and t instead of x, gives us,

w=50-2.5t. Where w is warts of water left in the tub and t is the time in minutes.


There is no viable solution when t=30 because at t=20, w=0 (0=50-2.5(20)). It means after 20 minutes, there is no water left. So t=30 minutes doesn't make sense.


ANSWER:

Modelling equation: w=50-2.5t

When t=30, there is no VIABLE solution

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Answer:

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Step-by-step explanation:

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