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Rufina [12.5K]
3 years ago
9

What is expanded 73, 489

Mathematics
2 answers:
Reil [10]3 years ago
6 0
Expanded form: 70,000+3,000+400+80+9 Expanded notation: 7 X 10,000= 70,000 3 X 1,000= 3,000 4 X 100= 400 8 X 10= 80 9 X 1= 9 73,489
sineoko [7]3 years ago
5 0
70,000 + 3,000 + 400 + 80 + 9

you just take each digit and expand it
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A bed is on sale for 25% off of its original price. It originally cost $879.00. How much is the sale price of the bed?
Arturiano [62]

Answer:

$659.25

Step-by-step explanation:

Since its 25 percent off we need to see what it would look as a decimal

1-.25=.75

879times.75= 659.25

5 0
3 years ago
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Let T: Mmxn(R)Mmxn(R) be the function defined
alexandr402 [8]

Answer:

True. See the explanation and proof below.

Step-by-step explanation:

For this case we need to remeber the definition of linear transformation.

Let A and B be vector spaces with same scalars. A map defined as T: A >B is called a linear transformation from A to B if satisfy these two conditions:

1) T(x+y) = T(x) + T(y)

2) T(cv) = cT(v)

For all vectors x,y \in V and for all scalars c \in R. And A is called the domain and B the codomain of T.

Proof

For this case the tranformation proposed is t: M_{mxn} (R) > M_{nxm} (R)

Where T(A) = A^T

For this case we have the following assumption:

1) The transpose of an nxm matrix is an nxm matrix

And the following conditions:

2) T(A+B) = (A+B)^T = A^T + B^T = T(A) + T(B)

And we can express like this T(A+B) =T(A) + T(B)

3) If A \in M_{mxn}(R) and c \in R then we have this:

T(cA) = (cA)^T = cA^T = cT(A)

And since we have all the conditions satisfied, we can conclude that T is a linear transformation on this case.

5 0
3 years ago
If I got $5 a week how much money would I have after 3 weeks
tensa zangetsu [6.8K]
You would get $15 in total because 5x3=15.
6 0
3 years ago
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Rewrite 20 = 8x + 4r
3241004551 [841]

Answer:

Step-by-step explanation:

20 = 8x + 4r can be rewritten in multiple ways.

1.  Reduce the coefficients:  5 = 2x + r

or

2.  Solve for r:  r = 5 - 2x

or

                                 5 - r

3.  Solve for x:  x = -----------

                                    2

4 0
3 years ago
Mike is mixing paint for his walls. He mixes 1/6 gallon blue paint and 5/8 gallon green paint in a large container. What fractio
Reptile [31]
1/6 + 5/8 = 
8/48 + 30/48 = 38/48 reduces to 19/24 <==== total gallons of paint
8 0
3 years ago
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