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3 years ago

Evaluate 2(x - 4)+ 3x - x2 for x = 3. A. 6 B. -2 C. 2 D. -6

Mathematics

2 answers:

uysha [10]3 years ago

7 0

Answer:

B. -2

Step-by-step explanation:

Simply plug 3 into the equation and follow the order of operations.

2(3 - 4) + (3(3)) - (3^2)

2(-1) + (9) - (9)

= -2

jeka57 [31]3 years ago

4 0

Answer:

B

Hope u get it right!!

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goblinko [34]

Answer:

<em> 3 years old </em>

Step-by-step explanation:

( 21 + 24 + 18 + 15 + 15 + x ) / 6 = 16

93 + x = 96

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3 years ago

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jek_recluse [69]

Answer:

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Step-by-step explanation:

the total degrees must equal 180. In the left triangle, we are given 80 as in of them. 180-80=100 degrees left in the triangle there are two equal angles left, so we divide 100/2 and get 50, so y=50. In the triangle on the right, there are two equal angles of 53 degrees. So 53x2=106. 180-106= 74 degrees left. x is the only angle left, so x=72

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3 years ago

The graph of y=3x^2-3x-1 is shown. Use the graph to find estimates for the solutions of i)3x^2-3x+2=2 ii) 3x^2-3x-1=x+1

AlexFokin [52]

Answer:

i) (0, 2) and (1, 2), ii) (0.333, 1.333) and (1, 2).

Step-by-step explanation:

i) Let be $y=3\cdot x^{2}-3\cdot x -1$ , if $3\cdot x^{2}-3\cdot x +2 = 2$ , which is equivalent to the following system of equations:

$y = 3\cdot x^{2}-3\cdot x +2$

$y = 2$

Now, this system is now represented by means of a graphing tool and whose outcome is attached below. There are two solutions: (0, 2) and (1, 2)

ii) Let be $y=3\cdot x^{2}-3\cdot x -1$ , if $3\cdot x^{2}-3\cdot x +2 = x+1$ , which is equivalent to the following system of equations:

$y = 3\cdot x^{2}-3\cdot x +2$

$y = x+1$

Now, this system is now represented by means of a graphing tool and whose outcome is attached below. There are two solutions: (0.333, 1.333) and (1, 2)

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4 years ago

professor190 [17]

Hello.

Translation: The shape or object will move left, right, up, or down. Also, you could have a combination like up and right. Rotation: The shape or object will turn. This is usually turning some degree clockwise or counterclockwise. Reflection: The shape or object flips across a line or point Dilation: The shape or object gets smaller or bigger by a scale factor.

Have a nice day

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3 years ago

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sergey [27]

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3 years ago