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Anit [1.1K]
2 years ago
10

Solve using square root or factoring method

Mathematics
1 answer:
OlgaM077 [116]2 years ago
8 0
9x^2 + 18x + 9 = 5

9(x^2 + 2x +1) - 5 = 0

x^2 + 2x - 4 = 0

Then use the quadratic formula. 

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Write a rule to describe the function shown.
I am Lyosha [343]

Answer:

y = -3x  

Step-by-step explanation:

(a) Slope

y = mx + b

Choose points (-3, 9) and (3, -9)

m = (-9 - 9)/(3 – (-3))

m = -18/(3 + 3)

m = -18/6

m = -3

=====

(b) y-intercept

y = mx +b

Choose point (0,0).

0 = 0 + b

b = 0

=====

(c) Equation of line

y = mx + b

y = -3x

6 0
2 years ago
If charged per cut, how much will it cost
melisa1 [442]

Answer:

24 because if your cutting 8 pieces and 4 pieces is 12 then all you have to do is multiply 12 x 2 which equals 24!

Step-by-step explanation:

7 0
2 years ago
Pt 2 5-7 please helpp
Keith_Richards [23]

Answer:

x = 12

Step-by-step explanation:

__9x__      =     __108___

   9                          9

x = 12

6 0
2 years ago
Read 2 more answers
Trina has two brothers. one brother is 7 years older than trina and the other brother is 7 years younger than trina. the product
AlladinOne [14]
(a) 95 = (x+7)*(x-7)

(b) 95 = (x+7)*(x-7) 
Expand the brackets:
95 = x² -7x + 7x -49 = x² - 49
Subtract x² from both sides:
95-x² = -49
Subtract 95 from both sides:
-x²=-49-95 
-x²= -144
Divide both sides by -1 to get rid of the negative numbers:
-x²/-1=-144/-1
x²=144
Take the square root of 144:
x = ± squareroot of 144
x = 12 or -12
x = 12 because you cannot have a negative age so Trina is 12 years old.
     
7 0
3 years ago
Distance between a(3,9) b(-10,4)​
stira [4]

Answer:

√194 i think

Step-by-step explanation:

5 0
3 years ago
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