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rodikova [14]
3 years ago
6

Find surface area pls! or ill fail :( SHOW WORK

Mathematics
1 answer:
Virty [35]3 years ago
5 0

Answer:

A. 862.4 in^2

Step-by-step explanation:

1) (14x8.9)=124.6

  124.6x4(4 sides have the same surface area)=498.4

2) 13x7(half of the 14in)=91

3) Typically, to find the surface area of a right triangle, you would divide the    answer by 2, but since we have 8 right triangles, we can just multiply the 91 by 4. 91x4=364

4) 364+498.4=862.4 in^2

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Add all the sides up
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If the odds against a student receiving an A grade in a mathematics class are 7 to 3, what is the
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Answer:

70%

Step-by-step explanation:

Since it can't go over 100%, and our numbers are 7 and 3, they are 70% and 30%, which add up to 100%.

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A line has a slope of Negative one-fourth and passes through point (Negative five-fourths, 1). What is the equation of the line?
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Answer:

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7 0
4 years ago
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Two towns that are 31.5 km apart are 3 cm apart on a map. what is the scale of the map?
VLD [36.1K]

<u>Answer:</u>

1 cm : 10.5 km

<u>Step-by-step explanation:</u>

We are given that two towns are 31.5 km in real and are 3 cm apart on a map and we are to find the scale of the map.

For this, we can use the ratio method.

\frac { 3 cm } { 1 c m } = \frac { 3 1 . 5 k m } { x }

x = \frac { 3 1 . 5 \times 1 } { 3 }

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8 0
3 years ago
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The first three terms of a sequence are given. Round to the nearest thousandth (if necessary).
zalisa [80]

Answer: 272

Step-by-step explanation:

Let a1=11

a2=20

a3=29

Formula for sequence=

an=a1+(n-1)d

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a1= first term

n= nth position

d= common difference

We are looking for the 30th term,so our n=30

d= a2-a1

d= 20-11

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Using the formula

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Therefore, the 30th term is 272

8 0
3 years ago
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