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alex41 [277]
3 years ago
15

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!<br> (1) what mistake was made?<br> (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

3 0
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

7 0
2 years ago
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HI quick qestion formula for volume
DedPeter [7]

Answer:

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

8 0
3 years ago
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8=−2/5c<br><br> Help me <br><br> 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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