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bogdanovich [222]
3 years ago
14

4(5 -3y) please show steps!!

Mathematics
2 answers:
Damm [24]3 years ago
5 0

Answer : 20 - 12y

Step-by-step explanation:

Nataliya [291]3 years ago
3 0

Answer:

20-12y

Step-by-step explanation:

4(5-3y)

multiply 4 and 5, then 4 and 3y

4.5=20

4.3y=12y

There's your answer. Have a good day

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Anni [7]
Yes it represents a function.
4 0
3 years ago
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9 (1/3)^n-1 what is the tenth term
NARA [144]

Answer:

a_{10}=\frac{1}{2187}

Step-by-step explanation:

Simply plug in 10 for <em>n</em>

9(1/3)¹⁰⁻¹

9(1/3)⁹

9(1/19683)

9/19683

a_{10}=\frac{1}{2187}

7 0
3 years ago
What is the inverse matrix that can be used to solve this systems of equations
Gala2k [10]

Step-by-step explanation:

The answer is OPTION C

Find the Inverse of a 3x3 Matrix.

First

Find the Determinant of A(The coefficients of e

Proceed towards finding the CO FACTOR of the 3x3 Matrix.

+. - +

A= [ 1 -1 -1 ]

[ -1 2 3 ]

[ 1 1 4 ]

The determinant of this is 1.

Find the co factor

| 2 3 | |-1 3 | |-1 2 |

| 1. 4. | |1 4 | |1. 1 |

|-1. -1 | |1 -1 | |1 -1

| 1. 4 | |1. 4| |1 1|

|-1. -1 | |1 -1 | |1. -1

|2. 3| |-1. 3| |-1 2|

After Evaluating The Determinant of each 2x 2 Matrix

You'll have

[ 5 7 -3]

[3 5 -2 ]

[-1 -2 1]

Reflect this along the diagonal( Keep 5,5 -2)

Then switching positions of other value

No need of Multiplying by the determinant because its value is 1 from calculation.

After this

Our Inverse Matrix Would be

[ 5 3 -1 ]

[7 5 -2 ]

[ -3 -2 1]

THIS IS OUR INVERSE.

SO

OPTION C

5 0
2 years ago
Suppose you are given Circle B with Area of ΔAOB(purple) = Area of Sector BOC (pink). What is m
Art [367]
\bold{ANSWER:}

28.65 Degrees

\bold{EXPLANATIONS:}

8 0
2 years ago
I need more math help, the!
BabaBlast [244]
Track A takes 20 minutes
Track B takes 15 minutes
In 1 minute track be will do a fraction of 1/20, while track B will do 1/15
Both tracks in a minute = 1/20+1/15
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Therefore the two tracks will take 300/35 minutes to fill the 200 cubic feet
That is 300/35
           = 8.57  minutes
           ≈ 9 minutes
4 0
3 years ago
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