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Gekata [30.6K]
3 years ago
9

F(x) = - x2 + 2x; {–1, 2, 3}

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0
A is the correct answer just put the values from the domain and see for yourself
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Someone pls help . Thank you sm !!
NemiM [27]

Answer:

  • 28 = -3k + 7

28 - 7 = -3k

21 = -3k

21/-3 = k

k = -7

  • 1/5  x - 17 = 3

x/5 = 3 + 17

x/5 = 20

x = 5*20

x = 100

  • 82 = 7/10 G + 12

82 - 12 = 7G/10

70 = 7G/10

70*10 = 7G

700 = 7G

700/7 = G

G = 100

6 0
3 years ago
Read 2 more answers
If x = 1 is a common root of ax² +ax + 2 = 0 and x² + x + b = 0 , then ab =
vodka [1.7K]

Answer:

ab = 2

Step-by-step explanation:

Given equations

ax² +ax + 2 = 0

x² + x + b = 0

root of both the equation

x= 1

then we can plug in x = 1 in both the equation

ax² +ax + 2 = 0                        x² + x + b = 0

a*1² +a*1 + 2 = 0                        1² + 1 + b = 0

a +a + 2 = 0                                 1 + 1 + b = 0

2a + 2 = 0                                    2 + b = 0

2a = -  2                                         b = -2

a = -2/2 = -1

Thus,

a = -1

b = -2

a*b = -1*-2 = 2

ab = 2

6 0
3 years ago
A rectangle measures 2 <br> 1/2<br> inches by 1 <br> 5/16<br> inches. What is its area?
Norma-Jean [14]

Answer:

it would be 3.28125

Step-by-step explanation:

do base times height to get the area

6 0
3 years ago
Evaluate 3yz +20 -xy if x =2, y = -3, and z = 4
makkiz [27]

Answer:

<em>Ans</em><em>.</em><em> </em><em>is</em><em> </em><em>-</em><em>1</em><em>0</em><em>.</em><em> </em><em>E</em><em>xplanation </em><em>is</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>attachment</em><em>.</em>

6 0
3 years ago
Solve this equation <br><br> |x − 5| + 2 = 5
Amanda [17]

Step-by-step explanation:

or, x + 5 + 2 = 5

or, x + 7 = 5

or, x = 5 - 7

or, x= -2

4 0
3 years ago
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