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Crazy boy [7]
4 years ago
12

Find the area of a rectangle whose length is x + 4 inches and whose width is 2x + 1 inches. Write your answer in the correct ord

er!
Mathematics
2 answers:
Ronch [10]4 years ago
7 0

Answer: the area is 2x² + 9x + 4

Step-by-step explanation:

The formula for determining the area of a rectangle us expressed as

Area = length × width

The rectangle has a length of x + 4 inches and width of 2x + 1 inches.

Therefore,

Area = (x + 4)(2x + 1)

We would open the brackets by multiplying each term in the first bracket with each term in the second bracket. It becomes

Area = 2x² + x + 8x + 4

Area = 2x² + 9x + 4

prisoha [69]4 years ago
4 0

Answer:

2x^2+9x+4

Step-by-step explanation:

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Answer:

The total surface area of this object is 510 cm^2.

Step-by-step explanation:

Here L = 12 cm, W = 7 cm and H = 9 cm.  

There are 2 panels 12 by 9 cm, 2 panels 12 by 7 cm, and 2 panels 7 by 9 cm.  The combined areas are:  

2(108 cm^2) + 2(84 cm^2) + 2( 63 cm^2)  =  510 cm^2 total area

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3 years ago
When designing a training plan, what do you need to think about?
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2 years ago
Consider an experiment where we ask what type of car – either domestic (e.g., Chevrolet, Ford, Chrysler, etc.), foreign built ab
Nostrana [21]

Answer:

12^{20} outcomes for this sample space (under some considerations)

Step-by-step explanation:

Let's define the multiplication principle.

If a first part of an experiment can happen in n1 ways, a second part of an experiment can happen in n2 ways , . . . , a i - part of an experiment can happen in ni ways, then the total outcomes for the all the experiment are

(n1) x (n2) x ... x (ni)

In this exercise n1 = domestic

n1 is the total classes for domestic category

(Let's suppose n1 = 3 because of Chevrolet, Ford and Chrysler)

n2 = 1 (Also supposing we only have ''a Toyota built in Japan'' category for n2)

n3 = 1 (Also supposing we only have ''A Toyota built in Kentucky'' category for n3)

n4 = 4 (Also supposing we only have ''sedan,hatchback, truck or SUV'' category for n4

The possible outcomes for one person in the experiment are

(Domestic).(ForeignBuiltAbrod).(ForeignBuiltInTheU.S).(Style)

Where what it is brackets are the possible categories for that classification.

n1.n2.n3.n4=3.1.1.4=12

We have 20 different people then 12^{20} are the possible outcomes sample space

In the sample space there are 12^{20} outcomes if we consider that we have 3 types of domestic car, 1 type of foreign car built abroad,1 type of foreign car built in the U.S and 4 differents styles for this 20 different people.

7 0
3 years ago
ACEG is a paralellogram. BKD, HJF and CKJG are straight lines. Find the values of x and y​
Genrish500 [490]

Answer:

\boxed{\mathrm{x=53\° \: \: \: y=33\°}}

Step-by-step explanation:

Apply these rules to solve:

• Angles on a straight line add up to 180 degrees.

• Angles in a triangle add up to 180 degrees.

• Opposite angles in a parallelogram are equal.

• Angles in a quadrilateral add up to 360 degrees.

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3 years ago
What is the height of a triangle with base 11 m and area 44m square
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The height should equal to 8m
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