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True [87]
2 years ago
10

Select the reason that best supports statement both 2 and 8 in the given proof.​

Mathematics
1 answer:
LenKa [72]2 years ago
7 0
It’s probably 10 given proof
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Find the equation of straight line passing through the centroid of the centroid of ABC
dem82 [27]

Answer:

use the formula of centroid that is

= x1+x2+x3/3

4 0
3 years ago
PLease help me with this!
astraxan [27]

Answer:

1. x2 - 9 > 0

x^2-3^2>0

(x+3)(x-3)>0

(x+3)>0 and (x-3)>0

x>-3       and  x>3

2. x2 - 8x + 12 > 0

   x^2 - 8x  +12>0

   x^2 -2x -6x +12 >0   (-8x is replaced by (-2x) + (-6x) )

   x(x-2) -6(x-2) >0

    (x-6)(x-2)>0

(x-6)>0    and (x-2)>0

    x>6     and     x>2

3. -x2 - 12x - 32 > 0

    -x^2 -12x -32 >0

     x^2 +12x +32 <0

      x^2 +4x +8x +32<0

      x(x+4) +8(x+4)<0

      (x+8)(x+4)<0

(x+8)<0   and  (x+4)<0

x<-8      and    x<-4

4. x2 + 3x - 20 >= 3x + 5

   x^2 +3x -20 >= 3x +5

   x^2 +3x -20 -3x >= 3x +5 -3x

     x^2 -20  >= 5

     x^2 -20 +20  >= 5  +20

     x^2 >=25

     x^2-25 >=0

      (x-5)(x+5)>=0

(x-5)>=0  and (x+5)>=0

  x>=5    and x>=-5

6 0
3 years ago
Why might algebra tiles not be a good tool to use to factor x2 + 18x + 80?
kvasek [131]
<span>
factor a trinomial to (10+x) (8+x)
 hope it helps</span>
7 0
3 years ago
Melinda rode her bilke 54/100 mile to the library. Then she rode 4/10 mile to the store. How far did melida ride her bike in all
adell [148]
94/100 mile in total
7 0
3 years ago
Find the equation of the tangent line to the graph f(x) = x(1-2x)^3 at the point (1,-1)
kramer

Answer: y = -4x + 4

<u>Step-by-step explanation:</u>

use the product formula (ab' + a'b) to find the derivative:

x * (1 - 2x)³

a = x             a' = 1

b = (1 - 2x)³   b' = 3(-2)(1 - 2x)²

                         = -6(1 - 2x)²

 <u>ab' + a'b</u>

= x(-6)(1 - 2x)² + 1(x)

= -6x(1 - 2x)² + x

Plug in the given x-values to find the slope:

= -6(1)(1 - 2(1))² + (1)

= -6(-1)² + 1

= -6 + 1

= -5

Next, input the slope and the point into the Point-Slope formula:

y + 1 = -5(x - 1)

y + 1 = -4x + 5

     y = -4x + 4


6 0
3 years ago
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