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3 years ago

8

the rectangular pool at your swim club is 100 meters long and 50 meters wide. how many more meters will you swim if you go along

the edges of the pool rather than diagonally across the pool? round to the nearest tenth.

1 answer:

LenKa [72]3 years ago

8 0

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Graph each exponential function <br> Y=4x

jeka94

<span>ahh okay i was going to say...thats a straight line haha....okay well lets see....what is 4^0? 1 right? what is 4^1? 4 ...4^2? 16 ...4^3? 64....make a graph with those points</span>

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3 years ago

If the current in a circuit is 2 +j2 amps and the resistance is 3-j2 ohms, what is the voltage

victus00 [196]

Answer:

The voltage is 10 + 2j volts.

Step-by-step explanation:

Ohm's first law:

By Ohm's first law, the voltage is the multiplication of the current by the resistance, that is:

$V = R*i$

The voltage is measured in Volts, the current in amps and the resistance in ohms.

In this question:

Both the current and the resistance have complex parts. We have to know that:

$j^{2} = -1$

We have that:

$R = 3 - 2j, i = 2 + 2j$

Then

$V = R*i$

$V = (3 - 2j)*(2 + 2j)$

$V = 6 + 6j - 4j - 4j^{2}$

$V = 6 + 2j - 4(-1)$

$V = 10 + 2j$

The voltage is 10 + 2j volts.

4 0

4 years ago

- x - x + 11 - 2x = 83<br>please show step by step!!

m_a_m_a [10]

Answer:

$x=-18$

Step-by-step explanation:

<u>Given</u>

<u /> $-x-x+11-2x=83$

<u>Step 1: Combine Like Terms on LHS</u>

<u /> $-x-x+11-2x=83\\-2x+11-2x=83\\-4x+11=83$

<u>Step 2: Subtract 11 on both sides</u>

<u /> $-4x+11=83\\-4x+11-11=83-11\\-4x=72$

<u>Step 3: Divide both sides by -4 to isolate the x-variable</u>

<u /> $-4x=72\\\\\frac{-4x}{-4}=\frac{72}{-4}\\ \\ x=-18$

<u>Final Answer</u>

<u /> $x=-18$

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2 years ago

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