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wolverine [178]
3 years ago
5

Select the correct answer.

Mathematics
2 answers:
Svetlanka [38]3 years ago
3 0

Answer:

<h3>\boxed{ \boxed{ \bold{ {x}^{2}  + 4x - 21}}}</h3>

Step-by-step explanation:

\sf{(x - 3)(x + 7)}

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.

⇒\sf{x(x  + 7) - 3(x + 7)}

⇒\sf{ {x}^{2}  + 7x - 3x  - 21}

Collect like terms

⇒\sf{ {x}^{2}  + 4x - 21}

Hope I helped!

Best regards!!

LUCKY_DIMON [66]3 years ago
3 0

Answer:

\boxed{\boxed{\boxed{\red{{x}^{2}  + 4x - 21}}}}

Step-by-step explanation:

(x - 3)(x + 7) \\ x(x + 7) - 3(x + 7) \\  {x}^{2}  + 7x - 3x - 21 \\  {x}^{2}  + 4x - 21

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Gala2k [10]
<span>A = P (1 + r/n)<span> (nt)
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P<span> = (the initial deposit or loan amount)</span>
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3 years ago
The line segment shown is rotated 90° clockwise about the origin. What are the new coordinates of point B?
Monica [59]
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6 0
2 years ago
the number of kilometers a car can drive varies directly with the liters of fuel in the car. this car can travel 476 kilometers
notka56 [123]

For this case we have that the relationship is direct.

Therefore, we have:

y = k * x

Where,

y: distance traveled in kilometers

x: number of liters of fuel

k: proportionality constant

We must look for the value of k. For this, we use the following data:

This car can travel 476 kilometers on 17 liters of fuel.

Substituting values we have:

476 = k * 17

From here, we clear the value of k:

k = \frac{476}{17}\\k = 28

Therefore, the relationship is:

y = 28x

For 1428 kilometers we have:

1428 = 28x

Clearing the amount of fuel we have:

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Answer:

51 liters of fuel are required for the vehicle to travel 1,428 kilometers

3 0
3 years ago
Help help help help help
Blizzard [7]

Answer:

x = 12

Step-by-step explanation:

Becuase 6/12 = 2 and 9 + 2 = 11

12

7 0
2 years ago
I'll mark as brainliest if you get the answer correct with Explanation.
mrs_skeptik [129]

Answer:

25, 90, and 65

Step-by-step explanation:

so the measures have to add up to 180, because it's a triangle, and we know 25 and 90 ( the box corner thing means that angle is 90) so we add 25 and 90 to get 115, and then we subtract 115 from 180, which gets us 65.

6 0
2 years ago
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