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2 years ago

Find The Surface Area

Mathematics

2 answers:

omeli [17]2 years ago

7 0

A = (12 x 8 x 3) + (1/2 x 8 x 6.9) + (1/2 x 8 x 7 x 3)

A = 288 + 27.6 + 84

A = 399.6 m²

Aleksandr [31]2 years ago

4 0

Answer:

A = (12 x 8 x 3) + (1/2 x 8 x 6.9) + (1/2 x 8 x 7 x 3)

A = 288 + 27.6 + 84

A = 399.6 m²

Step-by-step explanation:

The area =12(8x3)+(1/2)(8x6.9)+(1/2)(7x3)

The area = (288)+(27.6)+(84)

The area = 399.6 m ²

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A magician pulls 12 rabbits out of a hat.

pashok25 [27]

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2 years ago

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Consider these three squares with known area 25, 144,169

hram777 [196]

Answer:

Step-by-step explanation:

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1) area of the square =25

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Side^2=25

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2 years ago

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnig

Vladimir [108]

Answer:

The equation is given by:

$D(t) = 80 + 9\sin{0.2618t}$

Step-by-step explanation:

Sine function:

Has the following format:

$y = A\sin{bx}$

In which A is the amplitude and $\frac{2\pi}{b}$ is the period.

Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 89 and 71 degrees

This means that the amplitude of the sinusoidal variation function is 89 - 80 = 80 - 71 = 9. This means that $A = 9$

During a 24-hour day, which means that the period is 24. So

$\frac{2\pi}{b} = 24$

$24b = 2\pi$

$b = \frac{2\pi}{24}$

$b = 0.2618$

So the variation is:

$V(t) = 9\sin{0.2618t}$

Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t.

Initial temperature of 80, so:

$D(t) = 80 + V(t) = 80 + 9\sin{0.2618t}$

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2 years ago

What is the answer of this question?

polet [3.4K]

Answer:

116

Step-by-step explanation:

8.2 / 2 = 4.1

a = $\sqrt{7^{2}-4.1^{2} } = 5.6736$

0.5 x 8.2 x 5.6736 = 23.2618

23.2618 x 5 = 116.309 = 116

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2 years ago

A house costs $600 more than twelve times the lot on which it was built. If the lot cost x dollars, what did the house cost? Whi

Mnenie [13.5K]

House=600+12lot
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2 years ago

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