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kenny6666 [7]
3 years ago
11

Find the value of this expression if x = 4 and y= -2 xy / 5

Mathematics
2 answers:
zysi [14]3 years ago
4 0

Step-by-step explanation:

-2×4/5

-8/5

= -1.6

That's the answer

KonstantinChe [14]3 years ago
3 0

Answer: I think this is right but not sure lol

(4)(-2) / 5 = -1.6

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Step-by-step explanation:

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5 0
2 years ago
a local parts shop buys a machine that costs $500,000. its value depreciates exponentially each year by 10%. what is the machine
jeka94
Hello!

Answer:

$295.295

Explanation:

Of the statement, we have that the price of the machine decreased 10% every year exponentially, so in the first year it real value drops to 90% of the costs. For 5 years, It can be expressed and simplified by the following equation:

We can't use that the percent drop as a percent itself, so we are going to divide 90% by 100%, and it will give us an entire number.

\frac{90}{100}=0,9 \\ \\ Value=Costs.(0.9)^{years}


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Have a nice day!



8 0
3 years ago
Find the diameter of a circle with a circumference of 443 feet. Use 3.14 for pi.
marishachu [46]

Answer:

\huge\boxed{\sf d = 141\ feet}

Step-by-step explanation:

<u>Given Data:</u>

Circumference = C = 443 ft

<u>Required:</u>

Diameter = d = ?

<u>Formula:</u>

d = C / π

<u>Solution:</u>

d = 443 / 3.14

d = 141.0 feet

d = 141 feet

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
3 0
2 years ago
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Which of the following expressions is equivalent to 1/3^-3?
sweet [91]
I believe B . Because it seems equivalent
8 0
3 years ago
Solve for x 6(4x+1)=78
FromTheMoon [43]

Answer:

x=3

Step-by-step explanation:

5 0
3 years ago
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