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FromTheMoon [43]
3 years ago
12

For the following, write an equivalent expression in standard form: (5x2 + 6x - 2) + 4x (3x – 7).

Mathematics
1 answer:
Roman55 [17]3 years ago
7 0

Answer:

17x^2 -22x -2

Step-by-step explanation:

  1. 5x^2 +6x -2 +4x (3x-7)
  2. 5x^2 +6x -2 +12x^2 -28x
  3. 17x^2 +6x -2 -28x
  4. Answer: 17x^2 -22x -2

Just so you know when I put (^) the number after it is a exponent.

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kolezko [41]

Answer:

Slope =  \frac{-3}{4}

Step-by-step explanation:

(5 , -2)   ; (-3, 4)

Slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{4-[-2]}{-3-5}\\\\=\frac{4+2}{-3-5}\\\\=\frac{6}{-8}\\\\=\frac{-3}{4}\\\\

3 0
3 years ago
Please anyone can help me to solve the questions please​
Dafna11 [192]

Answer:

144 169 225

Step-by-step explanation:

12² = 144

13² = 169

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5 0
3 years ago
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Andre tried to solve the equation 1/4(x + 12) = 2. What was his mistake? *
Umnica [9.8K]

Answer:

x=-4

Step-by-step explanation:

x+12=8    

x=8-12

Andre did not multiple both by four to get the exact whole number. He also, didnt subtract 12 which is not possible due to it being multiplied by 1/4.

5 0
3 years ago
An ethanol railroad tariff is a fee charge for shipments of ethanol on public railroads. The Agriculture Marketing Service publi
Stels [109]

Answer:

The appropriate response is "0.9476".

Step-by-step explanation:

The given values are:

Standard deviation,

\sigma=1150

Randomly selected railroad-car shipments,

n = 500

As we know,

⇒ \sigma \bar{x}=\frac{\sigma}{\sqrt{n} }

On substituting the values, we get

⇒      =\frac{1150}{\sqrt{500} }

then,

⇒      =P(-1.94

⇒      =P(Z

On using the table of P, we get

⇒      =0.9738 - 0.0262

⇒      =0.9476

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3 years ago
Drawing of a kitchen is shown below
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Answer:

The answer is 55.54778 ft^2

Step-by-step explanation:

below in the picture.

4 0
3 years ago
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