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Illusion [34]
3 years ago
13

5. 12.8 ft 9 ft 9 ft

Mathematics
2 answers:
user100 [1]3 years ago
7 0

Answer:

9 x 9 = <em>81</em>

9 x 12.8 x 1/2 (basically just dividing by 2) = 57.6(area of 1 triangle),                     57.6 x 4(there are 4 sides of triangles) = <em>230.4</em>

Let's add all the given areas:

81 + 230.4 = 311.4 ft^2

kykrilka [37]3 years ago
3 0

Answer:

what do we have to solve? surface area? volume?

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4 0
3 years ago
If takes 660 metres of fence to enclose a rectangular field. if one side is 30 metres less that twice the other side, find the d
aliina [53]

Answer:

210 by 120

Step-by-step explanation:

perimeter=2l+2w

length= 2w-30

width= w

2(2w-30+w) = 660

6w-60= 660

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w=120

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6 0
3 years ago
A new car is purchased for 18000 dollars. The value of the car depreciates at 13.5% per year. What will the value of the car be,
leonid [27]

Answer:

The value of car after 14 years is  $ 2,363.04

Step-by-step explanation:

Given as :

The price of new car = N = $ 18,000

The rate of depreciation of the value of the car = R = 13.5 % per year

Let The value of car after 14 years = $ x

The time period = 14 years

<u>Now, According to question</u>

The value of car after n years = initial value of car × (1-\dfrac{\textrm rate}{100})^{\textrm Time}

or, $ x = N × (1-\dfrac{\textrm R}{100})^{\textrm n}

or, $ x = $ 18,000 × (1-\dfrac{\textrm 13.5}{100})^{\textrm 14}

Or, $ x = $ 18,000 × (0.865)^{14}

∴  x = $ 18,000 × 0.13128

I.e x = $ 2,363.04

So, The value of car after 14 years =  x = $ 2,363.04

Hence The value of car after 14 years is  $ 2,363.04  Answer

8 0
3 years ago
Find the slope and y intercept of the line PLEASE SHOW WORK
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Your second post,  <span>14x + 4y + 24,  is not an equation.  Please fix it.  After you've done that, solve your equation for y and identify the slope (m) and the y-intercept (b) in the same way.

</span>
5 0
3 years ago
One aquarium is 12 inches long another is 15 inches long and a third is 18 inches long they are all 18 inches deep and 12 inches
erastova [34]
The first aquarium is 2592 cubic inches

The second is 3240 cubic inches

The third is 3888 cubic inches.

So the second aquarium is the right answer.
7 0
3 years ago
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