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Goryan [66]
3 years ago
11

UGH CAN SOMEONE PLS HELPW WITH THIS

Mathematics
1 answer:
Troyanec [42]3 years ago
4 0
B is the answer ... z
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A hot air balloon is dropping from a height above the ground at a steady rate of 8 feet per second. It starts from a height of 7
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I believe the equation would be 765 -8t = 421. Then you would solve for t and get 43 seconds. I hope this helps!! :)
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2 years ago
A train is traveling at a constant speed. The diagram represents the train's distance and time. What is the speed of the train?
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I am thinking of two numbers. The sum of the numbers is 5. The first number is one less than the second number. Write a system o
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Answer:

x + y = 5

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Hope this helped!

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2 years ago
Test the set of polynomials for linear independence. If it is linearly dependent, express one of the polynomials as a linear com
aliina [53]

Answer:

The set of polynomial  is Linearly Independent.

Step-by-step explanation:

Given - {f(x) =7 + x, g(x) = 7 +x^2, h(x)=7 - x + x^2} in P^2

To find - Test the set of polynomials for linear independence.

Definition used -

A set of n vectors of length n is linearly independent if the matrix with these vectors as columns has a non-zero determinant.

The set is dependent if the determinant is zero.

Solution -

Given that,

f(x) =7 + x,

g(x) = 7 +x^2,

h(x)=7 - x + x^2

Now,

We can also write them as

f(x) = 7 + 1.x + 0.x²

g(x) = 7 + 0.x + 1.x²

h(x) = 7 - 1.x + 1.x²

Now,

The coefficient matrix becomes

A = \left[\begin{array}{ccc}7&1&0\\7&0&1\\7&-1&1\end{array}\right]

Now,

Det(A) = 7(0 + 1) - 1(7 - 7) + 0

           = 7(1) - 1(0)

           = 7 - 0 = 7

⇒Det(A) = 7 ≠ 0

As the determinant is non- zero ,

So, The set of polynomial  is Linearly Independent.

5 0
2 years ago
What is 10 × 3 1/6 in it simplest form
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Answer:

Step-by-step explanation:10x3 1/6=30 10/6=31 2/6=31 1/3

3 0
3 years ago
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