Solve the following system of equations Y=5x+4 Y=x2+3x-4

Mathematics

1 answer:

tia_tia [17]4 years ago

6 0

Answer: the following system of equations has 2 solutions

x1=4

X2=-2

Step-by-step explanation:

5*x+4=x²+3*x-4

x²-2*x-8=0

x12=(2+/-√4+4*1*8)/2

x12=(2+/-√36)/2

x1=(2+6)/2=4

x2=(2-6)/2=-2

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Find the geometric mean of 4 and 12

jonny [76]

Answer:

The Geometric Mean of 4 and 12 is 6.9

Step-by-step explanation:

Given Numbers are 4 and 12

To find : Geometric mean of the given No.

The Geometric Mean is a type of average where we multiply the nos. together and then take a square root (for two nos), cube root (for three nos) etc.

Formula for Geometric Mean is given by,

$Geometric\,Mean\,of\,x_1\,,\,x_2\,,\,x_3..x_n=\sqrt[n]{x_1\times x_2\times x_3\times\,...\,\times x_n}$

⇒ Geometric Mean of 4 and 12 = $\sqrt{4\times12}$

= $\sqrt{48}$

= $4\sqrt{3}$

= 6.92820323028

= 6.9

Therefore, The Geometric Mean of 4 and 12 is 6.9

7 0

4 years ago

Read 2 more answers

Anybody know this ? please help

Deffense [45]

Answer:

A.) <em>m ∠ ABD = m ∠ CBD</em>

Step-by-step explanation:

The line segment BD was constructed as an angle bisector, which means that ∠ ABC was split directly in half. This means that the two resulting angles are congruent.

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B15%2B6%5Csqrt%7B6%7D%20%7D" id="TexFormula1" title="\sqrt{15+6\sqrt{6} }" alt="\sqrt

marusya05 [52]

Answer:

$3 + \sqrt{6}$