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Artist 52 [7]
2 years ago
13

X + 2y = 5

Mathematics
1 answer:
Aneli [31]2 years ago
8 0

Answer:

-5

Step-by-step explanation:

The given system is

x + 2y = 5 \\ x - 3y = 7

The corresponding coefficient matrix is shown in attachment.

The value of the system determinant, is the determinant of the coefficient matrix.

Which is

- 3 \times 1 - 2 \times 1 =  - 5

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Step-by-step explanation:

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2 years ago
Answer correctly please
Paul [167]

Answer:

\$272,49

Step-by-step explanation:

7. \displaystyle /text{The answer makes sense because since the depreciation rate is 15%, we know that we need to use the "exponential decay" formula.}

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5. \displaystyle 1000[0,85]^8 = 272,490525 ≈ \$272,49

4. \displaystyle 1000 = a \\ -15\% + 100\% = 1 - r; 85\% = 1 - r \\ 8\:years = time\:[t]

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1. \displaystyle /text{initial amount: $1000, a depreciation rate of 15%, and a time period of 8 years}

I am joyous to assist you anytime.

5 0
3 years ago
Solve for y, 2y=-4x-14
BabaBlast [244]

Hello from MrBillDoesMath!

Answer:    y = 2x - 7

Discussion:

Divide both sides of the equation by 2:

2y /2  = (4x-14)/2 = 4x/2 -14/2

or


y = 2x - 7

Thank you,

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7 0
3 years ago
In a positive correlation, __________. A. the independent variable is always negative B. an increase in the independent variable
lyudmila [28]
The answer would be, "B".
8 0
3 years ago
Read 2 more answers
Solve for x.<br><br> log x + log 3 = log 18<br><br> Enter your answer in the box.
Makovka662 [10]

log(x) + log(3) = log(18)

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log(x) + 0.477121 + −0.477121 = 1.255273 + −0.477121

log(x)+0 = 0.778152

Divide both sides by 1.

log(x)+0/1 = 0.778152/1

log(x)=0.778152

Solve Logarithm

log(x) = 0.778152

10log(x) = 100.778152

x = 100.778152

x = 6.00001

3 0
3 years ago
Read 2 more answers
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