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drek231 [11]
2 years ago
6

What is the answer to y=5x

Mathematics
1 answer:
Marina86 [1]2 years ago
5 0
Y/x = 5 bc in order to isolate the variables you must divide by x on both sides to separate the 5, leaving you with y/x=5
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Which expressions are equivalent to <br><br> 2 ln a + 2 ln b - ln a?
ycow [4]

Answer:

Choices 2, 3, and 5  are correct.

Step-by-step explanation:

Complete question is:

Check all that apply.

1. ln ab² - ln a

2. ln a + 2 ln b  

3. ln a² + ln b² - ln a

4. 2 ln ab

5. ln ab²

ANSWER:

The given expression is : 2 ln a + 2 ln b - ln a

It simplifies to: ln a + ln b² = ln ab²

Checking the given options.

1. ln ab² - ln a   = ln (ab²)/a = ln b²

  FALSE

2. ln a + 2 ln b = ln ab²

  TRUE

3. ln a² + ln b² - ln a = ln (a²b²)/a = ln ab²

  TRUE

4. 2 ln ab = ln a²b²

  FALSE

5. ln ab²

  TRUE

4 0
3 years ago
The cost of a High Definition television now averages $700, but the cost is decreasing about 15% per year. In how many years wil
Roman55 [17]

Answer: 7.7 years

Step-by-step explanation:

Given

The cost of HD TV is $700 and it is decreasing at the rate of 15% per year

After one year it becomes

\Rightarrow 700-700\times 15\%\\\Rightarrow 700(1-0.15)

after 2 year it becomes

\Rightarrow 700(1-0.15)-700(1-0.15)\times 15\%\\\Rightarrow 700(1-0.15)(1-0.15)\\\Rightarrow 700(1-0.15)^2

Suppose, after x years it becomes $200

\Rightarrow 200=700(1-0.15)^x\\\\\Rightarrow \dfrac{2}{7}=0.85^x\\\\\text{Taking log both sides}\\\\\Rightarrow x=\dfrac{\ln (\frac{2}{7})}{\ln (0.85)}\\\\\Rightarrow x=7.7\ \text{years}

Thus, it takes 7.7 years for the cost to come under $200.

3 0
2 years ago
The area of the right triangle shown is 24 square feet.
Aleonysh [2.5K]

Answer:a b and d

Step-by-step explanation:

3 0
3 years ago
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Simplify the equation in simplest for using only positive exponents: (16x^4y^-12)^-5/2?
Lapatulllka [165]

\frac{y^{30} }{1024x^{10} }

Step-by-step explanation:

That is the answer if the equation looks like this:(16x^4y^{-12} )^\frac{-5}{2}

7 0
3 years ago
The standard form of an absolute value function is f(x) = ax-h1+k Which of the following represents the vertex?
blagie [28]

there's no "following"

3 0
2 years ago
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