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3 years ago

I need help with this problem

Mathematics

2 answers:

aliina [53]3 years ago

7 0

That’s the 90 degree angle right

Lesechka [4]3 years ago

7 0

Answer is 5
Did it on a whiteboard because it was easier.
If you have any questions, ask me.

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Please answer! (1) what mistake was made? (2) what suggestion could help avoid that?

AveGali [126]

Answer:

1) the signs of the numbers is not in standard form

2) always make sure that the signs of the two equations is standarised and then solve

please follow me

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3 years ago

Suppose that 2 people exercising in an enclosed room are each generating about 2.400 BTUs of body heat per

noname [10]

Answer:

0.002 BTUs per cubic foot heat is produced per hour

Step-by-step explanation:

Given:

Number of person = 2

Amount of heat produced by one person = 2.400 BTU

Dimension of the room = 20 ft x 12 ft x 10 ft

To Find:

How many BTUs per cubic foot do they produce in 1 hour = ?

Solution:

E = $\frac{ \text{(2400 Btu/ person hr}) (\text{Number of Hours}) (\text{Number of persons }) }{\text {volume of the room}}$

Substituting the values

E = $\frac{ \text{(2400 Btu/ person hr}) (1) ( 2) }{20 ft \times 12 ft \times 10 ft}$

E = $\frac{4.800}{2400}$

E = 0.002 BTU per cubic feet

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2 years ago

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HI quick qestion formula for volume

DedPeter [7]

Answer:

b times l times w........

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3 years ago

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8=−2/5c Help me I’m single ready to mingle

vitfil [10]

Answer:

-20

Step-by-step explanation:

First, you divide both sides by -2/5, which would get you c = 8 * -5/2 (Because when you divide, you multiply by the reciprocal). 8 * -5/2 is equal to -20. The answer is -20.

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3 years ago

What is the reciprocal of 7 1/3?

Andrei [34K]

The reciprocal is -3/23.

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3 years ago

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