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Y= -2x^2+12x-8      Using x = -b/2a        Where b= 12    a= -2

LINK:::::https://web2.0calc.com/questions/help_54234#r3

7744     88²

AX = 2       CX = 0.5

BX / 2 = 0.5 / BX

BX = 1

help pls need help.

HELP PLS

Find all (real or nonreal) z satisfying
(z - 3)^4 + (z - 5)^4 = -16

Hello Guest!

\((z - 3) ^ 4 + (z - 5) ^ 4 +16=0\)

I am kinda confused on how to fine y

y=(x-3+sqrt5)(x-3-sqrt5)   multiply this out :

y=x^2 -3x-sqrt5x - 3x +9+3sqrt5+ sqrt5x-3sqrt5 -5      simplify

y=x^2 -6x +4       multiply by -2

y = -2x^2+12x-8

x value of vertex =  - b/2a      use this value of x in the equation to find the y value of the vertex

ABCDEFGHIJ is a regular decagon. The rotation centered at G with an angle a takes D to J. Given that a is less than 180 degrees, find a. 

2 (x-4)^2 +8      expand to find  a    b   c

2x^2 -16x + 40           a = 2    b = -16   c = 40

then    3a = 6    3b = -48    3c = 120

6x^2 -48x +  120

6 (x-4)^2  +24                 h = -4

Which makes sense, because all you did was multiply the original expression by 3

3 * (2(x-4)^2 + 8) =    6(x-4)^2+24     h = -4

Please specify on whether you mean x or y-intercept. 

ok, no worries   

Yep,

Guest has given you a very good answer Juriemagic.

Thanks Guest.

We write the equation in matrix form

[1 2 3 4][a][10]

[4 1 2 3 ][b][4]

[3 4 1 2][c][10]

[2 3 4 1][d][-4]

Solving, we get a = -21/20, b = 39/20, c = -71/20 and d = 89/20, so a + b + c + d = 9/5

angle a = 72 degrees

Number of subsets =2^(number of elements)  - 1 =2^7  -  1 = 127 subsets

If I understand correctly

1 element sets   = 7 c 1  =  7

2 element sets   = 7 c 2  = 21

3                                        35

4                                        35

5                                        21

6                                         7

7                                         1                Add them all together..........

x is greater than or equal to 60º    (3-gon, equilateral triangle) 

Question: At an altitude of 15,000 meters above sea level in standard atmospheric conditions; a) What is the temperature value? (Temperature will be calculated in ℃.) B) What is the pressure value? c) What is the density value?

STP is sea level    T = 0^o C       or  273.15 K

standard lapse rate for temperature is approx  9.8 degree C per 1000 m

0 - 9.8(15) =  - 147^o C

   if you are using 15^o C for standard temp at sea level     the answer would be   -132 degrees C

Set the equations equal to find where they intersect:   ( I changed 'b' to 'n'  for clarity)

x^2 + 2x+7 = 7x+n

x^2 -5x + (7- n) = 0         for there to be only ONE point of intersection, the discrimnant = 0

b^2 - 4ac = 0

-5^2 - 4 (1)(7-n) = 0

25 -28 + 4n = 0

n = 3/4

Here is a graph:

https://www.desmos.com/calculator/boktuzssdd

Remember    cos²  + sin²=1     so sin Z = 24/25

Now you can draw a right triangle with sides    7   24   and hypotenuse 25

The Tan y = opp/adj = 7/24

As x starts at some infintesimal value greater than 0 , the funtion is    + inf

   as x goes to infinity the funtion approaches 0

(0, + inf)   would be the range of function values