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iren [92.7K]
3 years ago
10

Help me out !!!!! Please

Mathematics
1 answer:
Stella [2.4K]3 years ago
4 0
4x-t-4 is the final answer.
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-3(-x - 7)<br><br> (Distributive property)
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Find the sine ratio of angle . Hint: Use the slash symbol (/) to represent the fraction bar, and enter the fraction with no spac
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Read 2 more answers
The range of the following relation R:
NemiM [27]

Answer:

{- 5, - 4, 2 }

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3 0
3 years ago
Find the equation of the form y=ax²+bx+c whose graph passes through the points (1,6), (3, 20), and (−2,15).
Korolek [52]

Answer:

c = \dfrac{25}{4}

b = \dfrac{-13}{8}

a = \dfrac{11}{8}

Step-by-step explanation:

given ,

equation y=ax²+bx+c

passing through points (1,6), (3, 20), and (−2,15).

then these points will satisfy the equation

at (1,6)

y  = a x²+b x+c

6 = a(1)² + b (1) + c

a + b + c = 6------(1)

at (3 , 20)

y  = a x²+b x+c

20 = a(3)² + b (3) + c

9 a + 3 b + c = 20------(2)

at (−2,15)

y  = a x²+b x+c

15 = a(-2)² + b (-2) + c

4 a -2 b + c = 15------(3)

solving equation (1),(2) and (3)

a = 6 - b - c

9 (6 - b - c)+ 3 b + c = 20

6 b + 7 c = 34-------(4)

4 (6 - b - c) -2 b + c = 15

2 b + c = 3----------(5)

on solving equation (4) and (5)

c = \dfrac{25}{4}

b = \dfrac{-13}{8}

a = \dfrac{11}{8}

6 0
3 years ago
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