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stepan [7]
3 years ago
13

Plssssssss help meeeeee

Mathematics
2 answers:
vodomira [7]3 years ago
5 0

total surface area Stot = 139.843135 ft2

lateral surface area Slat = 120 ft2

top surface area Stop = 9.92156742 ft2

bottom surface area Sbot = 9.92156742 ft2

MariettaO [177]3 years ago
4 0
Add all of them then you would get the answer
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Enter the value of n so that the expression (ny + 25.7) + (–45.2y + 13.9) is equivalent to (–33.7y + 39.6).
sergij07 [2.7K]

Answer:

n=11.5

Step-by-step explanation:

we have

(ny+25.7)+(-45.2y+13.9)=(-33.7y+39.6)

Group terms than contain the same variable in the left side of the equation

(ny-45.2y)+(25.7+13.9)=(-33.7y+39.6)

Combine like terms in the left side

(ny-45.2y)+(39.6)=(-33.7y+39.6)

Simplify

ny-45.2y=-33.7y

ny=-33.7y+45.2

ny=11.5y

Simplify the y

n=11.5

4 0
4 years ago
Randy has $15,000 that he would like to invest. He has a choice of two interest paying bonds, one offering a 4% annual interest
Elina [12.6K]

Answer:

$11000 at 4% and $4000 at 8%

Step-by-step explanation:

7 0
3 years ago
Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of
Inessa [10]
5√7 + 12√6 - 10√7 - 5√6
Write it like this:
(12√6 - 5√6) + (5√7 - 10√7),
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7√6 - 5√7
You should leave it like this.
4 0
3 years ago
Read 2 more answers
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Answer:

What math is this?

Step-by-step explanation:

7 0
3 years ago
Find the surface area of the solid formed by the net. Round your answer to the nearest hundredth.
-BARSIC- [3]

Answer:

<h2>The area of the total figure is around 535.43 square centimeters.</h2>

Step-by-step explanation:

In the image attached, you can notice that all rectangles have a base of 20 centimeters.

Also, each side of the equilaterals triangles is 8 centimeters.

Notice that the height of each rectangle is equal to a side of a triangle.

Using all given vales, the area of each rectangle is

A_{rectangle}=b\times h=20 \times 8 =160 cm^{2}

The area of all rectangles is

A_{rectangles}=3(160cm^{2})=480 cm^{2}, because there are three rectangles in total.

The area of each triangle is

A_{triangle }=\frac{\sqrt{3} }{4} (8cm)^{2}  =\frac{\sqrt{3} }{4}(64cm^{2} )\\A_{triangle }=16\sqrt{3} cm^{2}

The area of both triangles is

A_{triangles}=2(16\sqrt{3}cm^{2}  )=32\sqrt{3} cm ^{2}

Now, the area of the whole figure is the sum of the area of triangles and rectangles

A_{total}=480cm^{2}  +32\sqrt{3} cm^{2} \approx 535.43 cm^{2}

Therefore, the area of the total figure is around 535.43 square centimeters.

7 0
3 years ago
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