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Veseljchak [2.6K]
3 years ago
11

Solve 3x^2 6x=12 by quadratic formula

Mathematics
1 answer:
kari74 [83]3 years ago
4 0
That would be x=0.87358
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Express (2-I) - (-1+3i) in the form of a + ib.
oksian1 [2.3K]

Answer:

=3-4i

Step-by-step explanation:

So we have:

(2-i)-(-1+3i)

First, distribute:

=(2-i)+1-3i

Combine like terms:

=-i-3i+2+1

Add:

=-4i+3

So, in the a+bi format, we will have:

=3-4i

7 0
3 years ago
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90 POINT QUESTION!!!
Aleks [24]

Answer: 9.19 ft

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.  

Sin α = opposite side / hypotenuse  

Where α is the angle of elevation of the ladder to the ground, the hypotenuse is the longest side of the triangle (in this case is the length of the ladder), and the opposite side (x) is the height of the top of the ladder above the ground.

Replacing with the values given:  

Sin 45 = x/ 13

Solving for x  

sin45 (13) =x  

x= 9.19 ft

Feel free to ask for more if needed or if you did not understand something.  

7 0
3 years ago
the human heart pumps 750 gallons of blood in 9 hours. A human kidney filters 100 gallons of blood in 6 hours. How many more gal
WITCHER [35]
The heart pumps 750*24/9=2000 gallons, and the kidney pumps 100*24/6=400 gallons. This is a difference of 2000-400=1600 gallons.
3 0
3 years ago
Enter the factor under the radical<br><img src="https://tex.z-dn.net/?f=%28a%20-%20b%29%20%5Csqrt%7Ba%20-%20b%7D%20" id="TexForm
kvasek [131]

\\ \rm\longmapsto (a-b)\sqrt{a-b}

\\ \rm\longmapsto (a-b)(a-b)^{\frac{1}{2}}

\\ \rm\longmapsto (a-b)^{1+\dfrac{1}{2}}

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3 0
3 years ago
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Is ( y x 1 ) +2 and y + 2 equivalent
Alik [6]

Answer:

Yes. They are equivalent.

Step-by-step explanation:

3 0
2 years ago
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