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Cloud [144]
3 years ago
7

Solve x2 - x - 5/2 = 0 using the quadratic formula.

Mathematics
1 answer:
stich3 [128]3 years ago
6 0

Answer:

x= 1±\sqrt{11} over 2

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COMPLETE<br> Find the value of the function for O.<br> sin(45°) = ?
geniusboy [140]

Answer:  \sqrt{2}/2 which is Choice B

This is the same as writing \frac{\sqrt{2}}{2}

The second "2" is not under or inside the square root.

==========================================================

Explanation:

Refer to the unit circle below. I've highlighted the angle 45 degrees and its corresponding sine value. It's the y coordinate of the point on the unit circle, for this particular angle.

Therefore, \sin(45^{\circ}) = \frac{\sqrt{2}}{2}

--------------

You could alternatively draw out a 45-45-90 triangle. Let x be the leg length and the hypotenuse is 1 unit long. Solve x^2+x^2 = 1 for x and you should get x = \frac{\sqrt{2}}{2} as the length of each leg.

Then take the ratio of the opposite over hypotenuse to find the same answer mentioned above.

6 0
2 years ago
Please Help me I’m begging you
eduard

Answer:

A

Step-by-step explanation:

4 0
3 years ago
Sasha is making a quilt. Her pattern requires that 1/4 of the pieces of cloth be green. She has 188 pieces of green cloth. If sh
butalik [34]

Answer:

The answer should be 752

Step-by-step explanation:

You turn 1/4 into a decimal and you get 0.25

Divide 188 by .25 and you should get that answer

6 0
3 years ago
Simplify.
ASHA 777 [7]

Answer:

C

Step-by-step explanation:

The answer is 16x-20. First, you have to distribute 12 and 4 making the equation 12x-48+4x+28. Then, you combine the like terms giving you 16x-20. Hope this helped.

4 0
3 years ago
Write 108.92 in expanded form
Kitty [74]
Sorry if my writing is sloppy

5 0
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