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kati45 [8]
3 years ago
12

-1.6x - 3.2y=-24 2.6x + 2.6y = 26 The solution is (

Mathematics
1 answer:
kiruha [24]3 years ago
3 0

Answer:

x=5\\y=5

Step-by-step explanation:

I solved using substitution

<u>−1.6x−3.2y=−24</u>

−1.6x=−24+3.2y

−1.6x=3.2y−24

x=-\frac{3.2y-24}{1.6\\}

2.6x+2.6y=26

−2.6y+39=26

−2.6y+39=26

−2.6y=26−39

−2.6y=−13

y =5

​​

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The function f(x) = 5One-fifth is reflected over the y-axis. Which equations represent the reflected function? Select two option
postnew [5]

Answer:

The equations that represent the reflected function are

f(x)=5(\frac{1}{5})^{-x}

f(x)=5(5)^{x}

Step-by-step explanation:

The correct question in the attached figure

we have the function

f(x)=5(\frac{1}{5})^{x}

we know that

A reflection across the y-axis interchanges positive x-values with negative x-values, swapping x and −x.

therefore

f(−x) = f(x).

The reflection of the given function across the y-axis will be equal to

(Remember interchanges positive x-values with negative  x-values)

f(x)=5(\frac{1}{5})^{-x}

An equivalent form will be

f(x)=5(\frac{1}{5})^{(-1)(x)}=5[(\frac{1}{5})^{-1})]^{x}=5(5)^{x}

therefore

The equations that represent the reflected function are

f(x)=5(\frac{1}{5})^{-x}

f(x)=5(5)^{x}

9 0
2 years ago
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2 years ago
Jim is investing in the stock market. Jim is hoping to earn $2,000 in interest in order to take a trip to Mexico. Stock A earns
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Given:

Total amount for investment = $32000

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Rate of interest for Stock B = 7%

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To find:

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Step-by-step explanation:

Let amount of investments in Stock A = $x

Amount of investments in Stock B = $y

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Rate of interests in Stock A and Stock B are 4% and 7%. Total interests is $2000.

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From (i) and (ii), we get

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Divide both sides by -0.03.

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Therefore, the amount of investments in Stock A and Stock B are $8000 and $24000 respectively.

8 0
2 years ago
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