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3 years ago

How do you go about doing this surface area problem?

Mathematics

1 answer:

hammer [34]3 years ago

5 0

Break it down into 2-Dimensional shapes. Then add the areas together.

From the picture you can see;
front & back rectangles are 2*(4 x 8) = 64 m²
2 side rectangles are 2*(4 x 12) = 56 m²
2 triangular front & back pieces are (1/2)*8*3 = 12 m²
2 roof rectangles are 2*(5 x 12) = 120 m²

total Surface area = 64 m² + 56 m² + 12 m² + 120 m²
= 252 m²

For the volume; break it up into 3-dimenssional shapes and add the volumes together.

From the picture you can see;
Rectangular box volume is 4 x 8 x 12 = 384 m³
Triangular roof volume is area of front triangle multiplied through the length. (1/2)*8*3* 12 = 144 m³

Total volume = 384 m³ + 144 m³
= 528 m³

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A student draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-

faust18 [17]

Answer:

The positive difference between the a values is 0.5

Step-by-step explanation:

we know that

Both parabolas cross the x axis at (-4,0) and (6,0)

The general equation is

$y=a(x+4)(x-6)$

<em>Find the value of a in the first parabola</em>

The y-intercept is (0,-12)

For $x=0, y=-12$

substitute

$y=a(x+4)(x-6)$

$-12=a(0+4)(0-6)$

$-12=a(-24)$

$a=0.5$

<em>Find the value of a in the second parabola</em>

The y-intercept is (0,-24)

For $x=0, y=-24$

substitute

$y=a(x+4)(x-6)$

$-24=a(0+4)(0-6)$

$-24=a(-24)$

$a=1$

<em>Find the positive difference between the a values for the two functions</em>

$1-0.5=0.5$

5 0

3 years ago

Read 2 more answers

The results of a public opinion survey on raising the minimum wage are summarized in the two-way table. Which statement is TRUE

Makovka662 [10]

Answer:

More people over the age of 60 support an increase than any other group

About 73% of those over 60 support an increase.

26.6% of those between 41-60 support an increase.

50% of those between 21-40 support an increase.

200 people participated

8 0

3 years ago

Read 2 more answers

Kyle uses a spreadsheet to keep track of his spending. this is an example of kyle’s spreadsheet for two months: a 2-column table

hammer [34]

The statements which help Kyle’s spreadsheet become more organized are (ii and iii). They should be different having the time, of transaction to simplify find.

<h3>What is spreadsheet?</h3>

Spreadsheet is the electronic sheet in which the data can be arranged and saved for the future use. This data in a spreadsheet is arranged in the rows and the column of the spreadsheet.

Kyle uses a spreadsheet to keep track of his spending. this is an example of Kyle’s spreadsheet for two months.

Kyle thinks that he could improve this spreadsheet, but he is not sure how. Choose the statement or statements that would help kyle’s spreadsheet become more organized.

The statement, which may help him,

ii. It is hard to tell the debits from the credits. They should be in different colors, different columns, or otherwise differentiated. This way he can arrange and find the data whenever required.
iii. Having the dates, or at least the months, of each transaction would make things easier to find. This way he can see the transaction data wise and arranged them in time wise order.

Thus, The statements which help Kyle’s spreadsheet become more organized are (ii and iii). They should be different having the time, of transaction to simplify find.

Learn more about the spreadsheet here;

brainly.com/question/4965119

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2 years ago

Find all values of x that make the equation -4(x-2)(4x+3)(x-6)

Dominik [7]

Answer:

the answer is -16 x ^3 + 116 x ^2 -96 x -144

5 0

3 years ago

A rectangle is twice as long as it is wide. If its area is 50 sq. yd., find the length.

sertanlavr [38]