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NikAS [45]
3 years ago
9

What is one root of this equation? 2x^-4x+9=0

Mathematics
1 answer:
Nutka1998 [239]3 years ago
3 0

9514 1404 393

Answer:

  1 +i√3.5

Step-by-step explanation:

In vertex form, the equation is ...

  2(x² -2x +1) +7 = 0

  2(x -1)² +7 = 0

Then the solutions are ...

  (x -1)² = -7/2

  x = 1 ±i√3.5

One solution is 1+i√3.5.

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Find the volume 7 height 8 radius <br> A.1600km<br> B.1907km<br> C.1407km<br> D.1100km
Oksi-84 [34.3K]

Answer:

 1407

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve question 3 for <br> 41 points
Sever21 [200]

Answer:

(2)

Step-by-step explanation:

Our logarithmic expression is: ln(\frac{\sqrt{e} }{y^3} ).

Remember the logarithmic property that ln(a/b) = lna - lnb. So, we can write this as:

ln(\frac{\sqrt{e} }{y^3} )=ln(\sqrt{e} )-ln(y^3)

Also, we can write square roots as powers of one-half, so √e = e^{1/2}. There's another log property that: ln(a^b)=b*ln(a). We can apply that here for both the √e and the y³:

ln(\sqrt{e} )-ln(y^3)=\frac{1}{2} ln(e)-3ln(y)

Finally, note that ln(e) is just 1, so we have:

\frac{1}{2} ln(e)-3ln(y)=\frac{1}{2} -3ln(y)=\frac{1-6ln(y)}{2}

The answer is thus (2).

<em>~ an aesthetics lover</em>

7 0
3 years ago
Help please?!!!!!!!!
guajiro [1.7K]

Answer:

12x + 3

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

6 + 4(3x - 2) + 5

<u>Step 2: Simplify</u>

  1. Distribute 4:                              6 + 12x - 8 + 5
  2. Combine like terms (Z):            12x + 3
8 0
3 years ago
Read 2 more answers
Pls help me with this math!
Neko [114]

Answer:

x = 50.60 cm

Step-by-step explanation:

Given triangles ΔMAB and ΔMNP are smilar accordingly their corresponding sides are proportional.

But first we will determine the size of the side MA:

MA = MN - AN = 46.2 - 14 = 32.2 cm

Now we will make proportion:

MN : MA = MP : MB  =>  46.2 : 32.2 = 72.6 : x

When we multiply external and internal members we get:

46.2 x = 72.6 · 32.2 => x = 72.6 · 32.2 / 46.2 = 2337.72 / 46.2 = 50.60 cm

x = 50.60 cm

God with you!!!

5 0
3 years ago
Given: ΔАВС, m∠ACB = 90° CD ⊥ AB , m∠ACD = 60° BC = 6 cm Find CD, Area of ΔABC
gregori [183]
Area=1/2*base*height
given that ABC is right angled triangle, the height will be given by:
tan theta=opposite/adjacent
tan 60=h/6
h=6tan60
=10.4
thus the area will be:
A=1/2x6x10.4
=31.2 cm^2

3 0
3 years ago
Read 2 more answers
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