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GREYUIT [131]
3 years ago
7

A human body while sleeping generates about 300 BTUs of body heat per hour. If two people are sleeping in a bedroom that is 15 f

t × 12 ft × 10 ft, how many BTUs per cubic foot do they produce in 7 hours? (to the nearest tenth) A) 0.2 BTUs/ft3 B) 1.2 BTUs/ft3 C) 1.5 BTUs/ft3 D) 2.3 BTUs/ft3
Mathematics
1 answer:
Katarina [22]3 years ago
4 0
Given:
one person can produce:
E = <span>300 BTUs of body heat per hour
dimensions of the bedroom is:
V = </span><span>15 ft × 12 ft × 10 ft

required: is the energy per volume if 2 persons sleeps in 7 hours
let T be the total energy produce per volume

T = (</span><span>300 BTU per hour per person) ( 7 hours) ( 2 person) / ( </span> <span>15 ft × 12 ft × 10 ft)

T = 2.3 BTU / ft^3</span>
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Answer:

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Step-by-step explanation:

The relationship between time, speed, and distance is ...

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Adding the two equations eliminates the c term:

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Solving the second equation for c, we get ...

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VARVARA [1.3K]

Answer:

1/5^9

Step-by-step explanation:

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3 years ago
1. Find the phase shift of the function y = 5cos(2x + pi/2).
kolezko [41]

Answer:

see explanation

Step-by-step explanation:

1

The cosine function in standard form is

y = acos(bx + c)

where a is the amplitude, period = \frac{2\pi }{b} and

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here b = 2 and c = \frac{\pi }{2}, thus

phase shift = - \frac{\frac{\pi }{2} }{2} = - \frac{\pi }{4}

2

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3 years ago
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muminat

Answer:

Step-by-step explanation: its b

5 0
3 years ago
Read 2 more answers
2. Which equation is equivalent to 2 + 4x = 5 - 3(x + 1)? A. 2 + 4x = 2x - 3 B. 2 + 4% = 5 - 3 -3. C. 6x = 5-(+ 1). D. 2 + 4 = 2
Andre45 [30]

Answer:

B) 2 + 4x = 5 - 3 - 3x

Step-by-step explanation:

By simplifying JUST the right side and re-arranging them

2 + 4x = 5 - 3(x + 1),

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2 + 4x = 5 -3 - 3x

3 0
3 years ago
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