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charle [14.2K]
3 years ago
10

Find the surface area of the figure. ft

Mathematics
2 answers:
eimsori [14]3 years ago
7 0

Answer:486ft^{2}

Step-by-step explanation:

surface area= 6l^{2}

l=9

sa=6 (9^{2})= 6 x 81=486ft^{2}

Lapatulllka [165]3 years ago
3 0

Answer:

486

Step-by-step explanation:

Hello!

To find the surface area of a cube we use the equation

S = 6a^{2}

S is the surface area

a is the side length

Put what we know into the equation

S = 6*9^{2}

Solve

S = 6 * 81

S = 486

Hope this Helps!

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Your relay team competes in the 4 x 400 meter relay. The individual times for your four member team are 56.25, 59.89, 58.55, and
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<h3>Answer:  Step-by-step explanation: You have to make an addition with the individual times: 56.25+59.89+58.55+55.4=230.17 seconds. Now you should to convert it into a minutes and seconds.  1 minute= 60 seconds 2 minute= 120 seconds 3minute= 180 seconds 4minute= 240 seconds In this way you they have 3 minutes and the remainder is 50 seconds.   So, the time for the team is 3 minutes and 50.17 seconds.</h3>
7 0
3 years ago
Read 2 more answers
What is the area of this composite shape? Enter your answer in the box. In².
vladimir2022 [97]

The area of the composite shape is the sum of the area of the triangle and the area of the rectangle. The area of the composite shape is 53 in².

<h3>What is Geometry?</h3>

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

The composite is made up of triangles and rectangles.

The area of the composite shape will be the sum of the area of the triangle and the area of the rectangle.

The area of the triangle will be

\rm  Area\ of\ the\ triangle = \dfrac{1}{2} * 5 * 2\\\\Area\ of\ the\ triangle = 5

The area of the rectangle will be

\rm  Area\ of\ the\ rectangle= 8*6\\\\Area\ of\ the\ rectangle = 48

The area of the composite shape is 48 + 5 = 53.

The area of the composite shape is 53 in².

More about the geometry link is given below.

brainly.com/question/7558603

4 0
3 years ago
(9-3x^2)+(-8x^2+4x+5)
Sunny_sXe [5.5K]
1. Simplify
9 - 3x^2 - 8x^2 + 4x + 5
2. Collect like terms
(9 + 5) + (-3x^2 - 8x^2) + 4x
3. Simplify
14 - 11x^2 + 4x
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3 years ago
Ratio of three angles of a triangle is 1 : 2 : 3. Find the angles.
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Answer:

30⁰ , 60⁰ , 90⁰

Step-by-step explanation:

Let the angles x , 2x , 3x

By angle sum property:

x + 2x + 3x = 180⁰

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x = 30⁰

Angles are : 30⁰ , 60⁰ , 90⁰

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3 years ago
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kakasveta [241]

Answer:

a) Math and Dance

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Step-by-step explanation:

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