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Gnesinka [82]
3 years ago
9

I need some help asap!

Mathematics
2 answers:
andriy [413]3 years ago
8 0

Answer:

center of rotation

Step-by-step explanation:

the triangle ABC is rotated about point D to create triangle A'B'C'

Anuta_ua [19.1K]3 years ago
7 0

Answer:

I think itd center of rotataion

Step-by-step explanation:

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expeople1 [14]
3/3 or it could be 1
4 0
2 years ago
Solve the equation a/a^2-9 +3/a-3=1/a+3
MAXImum [283]
Answer is: a= -4
STEP
1
:

1
Simplify —————
a + 3
Equation at the end of step
1
:

a 3 1
(————————+—————)-——— = 0
((a2)-9) (a-3) a+3
STEP
2
:

3
Simplify —————
a - 3
Equation at the end of step
2
:

a 3 1
(————————+———)-——— = 0
((a2)-9) a-3 a+3
STEP
3
:

a
Simplify ——————
a2 - 9
Equation at the end of step
3
:

a 3 1
(————————————————— + —————) - ————— = 0
(a + 3) • (a - 3) a - 3 a + 3

Equation at the end of step
4
:

(4a + 9) 1
————————————————— - ————— = 0
(a + 3) • (a - 3) a + 3
Pull out like factors :

3a + 12 = 3 • (a + 4)

Equation at the end of step
6
:

3 • (a + 4)
————————————————— = 0
(a + 3) • (a - 3)

3•(a+4)
——————————— • (a+3)•(a-3) = 0 • (a+3)•(a-3)
(a+3)•(a-3)

a+4 = 0

Subtract 4 from both sides of the equation :
a = -4
7 0
3 years ago
Find the slope of the given points (6, -10) and (-15, 15). Show your work.
charle [14.2K]

Answer:

Step-by-step explanation:

The slope of a line between two points can be calculated by dividing the difference of y values by the difference of x values

in this case

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6 0
3 years ago
Find the second derivative of the function P(t) =(2t+4)/(t+1)
vitfil [10]

use the quotient rule then after using it the first time use it again on your resulting equation, since you are looking for the second derivative

3 0
3 years ago
How do i find the value of x on this problem?
zaharov [31]

Answer:

x = 7

Step-by-step explanation:

The proportion is

14/6 = 21/(3x - 12)                 Cross Multiply

14*(3x - 12) = 6*21                 Remove the brackets and combine

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42x = 126 + 168

42x =  294                           Divide by 42

x = 294/42

x = 7

8 0
2 years ago
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