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elixir [45]
3 years ago
9

Solve the equation using the quadratic formula. X^2-9x+3=0

Mathematics
1 answer:
Nesterboy [21]3 years ago
8 0

Answer:

The answer is x= \frac{9+\sqrt{69}}{2}, x= \frac{9-\sqrt{69}}{2}

Step-by-step explanation:

x^2=a

-9x=b

3=c

Plug into formula.

Equation: \frac{9+-\sqrt{(-9)^2-4(1)(3)}}{2}

Simplify the equation.

Equation: \frac{9+-\sqrt{81-12}}{2}

Subtract 81 and 12.

Equation: \frac{9+-\sqrt{69}}{2}

Spit into two equations

Equation 1: \frac{9+\sqrt{69}}{2}

Equation 2: \frac{9-\sqrt{69}}{2}

Hope this helps!

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3 years ago
(2^n)^1/2=64 find value of n
sashaice [31]

Hello, I can help.

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Here is how i got the answer.

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3 years ago
Find the area <br> steps, please
mixas84 [53]

Answer:

45) 35.75 sq km

46) 24.5 sq km

Step-by-step explanation:

Area of Square:

A= \frac{(base)(height)}{2}

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5 0
3 years ago
Read 2 more answers
Solve for b. C=b225 b=±5C√C b=±C√5 b=±5C b=±5C‾‾√
Pachacha [2.7K]
B=±5<span>√<span>​<span>c

Now if you ever need help a website you can use is cymath, i use it for my school and its how i found out your answer here, it has never been wrong for me, i'm just a student myself. Good Luck!
</span></span></span>

Please give me brainiest! I’m striving for the next rank!

6 0
3 years ago
If M/DFC= 40 and M CD= 55 the BG= <br> 25<br> 80<br> 135
Y_Kistochka [10]

Answer:

25

Step-by-step explanation:

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55 + BG = 80 ( subtract 55 from both sides )

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6 0
4 years ago
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