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3 years ago

11

Which answer choice is it?

1 answer:

quester [9]3 years ago

4 0

Yes by the SSS theorem

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Solve x² - 4x+1=0.<br> O x=2±2√5<br> O x=4± √√3<br> O x=2± √√3<br> Ox<br> x=-2± √3

mr Goodwill [35]

Answer: x=2±√3

Step-by-step explanation:

$\displaystyle\\x^2-4x+1=0\\\\ax^2+bx+c=0\\\\a=1\ \ \ \ \ b=-4\ \ \ \ \ c=1\\\\D=b^2-4ac\\\\D=(-4)^2-4(1)(1)\\\\D=16-4\\\\D=12\\\\\sqrt{D} =\sqrt{12}\\\\\sqrt{D}=\sqrt{3(4)} \\\\\sqrt{D}=2\sqrt{3}\\\\ Hence,\\\\x=\frac{-bб\sqrt{D} }{2c} \\\\x=\frac{-(-4)б2\sqrt{3} }{2(1)} \\\\x=\frac{4б2\sqrt{3} }{2} \\\\x=\frac{2(2б\sqrt{3}) }{2} \\\\x=2б\sqrt{3}$

8 0

1 year ago

Jessica needs 1/2 cup of sugar to make 1/4 of her cookie recipe. How much sugar does she need to make the entire recipe?

Vinil7 [7]

Answer:

2 cups

Step-by-step explanation:

If 1/2 makes 1/4 of the recipe, all you have to do is times 1/2 by 4:)

5 0

3 years ago

Write the decimal as a fraction or a mixed number in simplest form. 3.4

Dafna11 [192]

$3.4=3+0.4=3+\dfrac{4}{10}=3+\dfrac{4:2}{10:2}=3+\dfrac{2}{5}=\boxed{3\frac{2}{5}}$

5 0

4 years ago

Read 2 more answers

Lines A and B parallel lines cut by the transversal c. If the measure of angle 5 is 123, what is the measure of angle 1?

Jet001 [13]

123. angle 1 would be the same as angle 5, seeing as the lines are parallel. 5&1 are both on top on lines A & B AND on the same side of transversal

4 0

3 years ago

The difference of the square of a number and 18 is equal to 3 times that number. Find

ololo11 [35]

Answer:

6.

Step-by-step explanation:

To solve this, you can set up an equation as such:

x²-18= 3x

Now, rearrange this to make it an equation in standard form:

x²-3x-18=0.

Simply turn this equation into factored form:

(x-6)(x+3)= 0.

The only positive solution here is x=6.

7 0

4 years ago