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2 years ago

Find the surface area of the composite solid.

Mathematics

1 answer:

Reptile [31]2 years ago

7 0

Answer:

185ft squared

Step-by-step explanation:

since this is a composite solid, all we have to do is use the 2 formulas:

b x h / 2 (Triangles on the pyramid)

l x w (Rectangular faces)

to solve the surface area of the composite figure.

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Please help!!!!!!!!!!

topjm [15]

Ah yes, good ol’ Pythagorean’s theorem.

The hypotenuse is the opposite of the 90 degree angle, the longest side of the triangle.

The legs are opposite of the acute angles

Formula: a^2 + b^2 = c^2

2:

Let’s plug in some values

(6)^2 + (3)^2 = c^2

C = 6.7

The side will be 6.7 units

3)

Let’s plug in some values

(13.3)^2 = (9.7)^2 + (b)^2

(13.3)^2 - (9.7)^2 = b^2

176.89 - 94.09 = b^2

b = 9.1

The side will be 9.1 units

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2 years ago

If 4.5 pounds of chocolate cost $10, how

allsm [11]

I think 5.4

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3 years ago

60 is 1/100 of what?

Thepotemich [5.8K]

Answer:

60% or 0.6 as a decimal

4 0

2 years ago

In the Metric System: As you move from a smaller unit to a larger unit, the number of larger units required will be LESS. Theref

3241004551 [841]

Answer:

True

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Suppose an aquarium has a length of 4 feet, a width of 2 feet, and is filled with water to a depth of 9 feet. A reef is placed i

BigorU [14]

Answer:

$24ft^3$

Step-by-step explanation:

The information that we kow about the shape of the aquarium:

length:

$l=4ft$

width:

$w=2ft$

when the reef is submerged, the water level rises 3 feet. The volume that those 3 ft represent in the aquarium will be the volume of the reef.

Thus, we calculate the volume of water "addition" with the same length and width as the aquarium but with a deep of 3 feet (thi is because the reef caused the water to rise 3 feet), and this is the volume of the reef that was added to the aquarium:

$V=4ft*2ft*3ft\\V=24ft^3$

The volume of the stone is $24ft^3$

8 0

2 years ago