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-Dominant- [34]
2 years ago
5

Solve for x. 5x+4=9 Can you help me out?

Mathematics
1 answer:
Juli2301 [7.4K]2 years ago
7 0

Answer: x=1

Step-by-step explanation:

5x+4=9

5x=5

X = 1

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Divide<br> 4^2 divided by 4^6 =
alekssr [168]

Answer:

<h2>0.00390625 / 4^{-4} </h2>

Step-by-step explanation:

so you are saying do:

4^{2} /4^{6} which is 16 /4096

16/4096=0.00390625

<u>another way you can do this is</u>

4^{2} /4^{6}

just subtract the powers

2-6=-4

so the answer is 4^{-4}

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2 years ago
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It took 30 minutes for Melinda to run 4 miles<br> (Find the unit rate and explain what they mean)
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Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AD =4, BD =6, what is the length of DC
Lostsunrise [7]

Answer:

AC=5

Step-by-step explanation:

From the question we are told that:

Dimensions

AD=4\\BD=6

Generally the equation for these similar right triangle is mathematically given by

\frac{AC}{AB}=\frac{AB}{AD}=\frac{BC}{BD}

\frac{AC}{AB}=\frac{AB}{AD}

Where

AD=x

AC=x+4

Therefore

AB^2=x(x+4)

Generally the Pythagoras equation for \triangleADB is mathematically given by

AB^2=BD^2+AD^2

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x(x+4)-(4+x^2)=0

x^2+4x)-(4+x^2)=0

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Therefore

AC=x+4

AC=1+4

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8 0
2 years ago
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ArbitrLikvidat [17]

Hello!

\large\boxed{a = -1}

y = 2x³ + ax² - x + 3

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y' = 6x² + 2ax - 1

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3 = 6(1)² + 2(1)a - 1

3 = 6 + 2a - 1

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2 years ago
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