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viktelen [127]
3 years ago
12

The mean temperature is the mean of the high and low temperatures for a day. How many degree days are recorded for a day with a

high of temperature of 63F and a low temperature of 28F? Are they heating degree days or cooling degree days?
Mathematics
1 answer:
tatiyna3 years ago
8 0
The average temperature for the day would be 45.5°F and it seems they are cooling degree days.
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If m∠ABC = 72°, what is m∠DAB?<br><br> A) 72°<br> B) 108°<br> C) 144°<br> D) 216°
Semmy [17]
∠ABC=∠CDA=72º
∠DAB=∠BCD=x

∠ABC+∠CDA+∠DAB+∠BCD=360º

Therefore:
72º+72º+x+x=360º
144º+2x=360º
2x=360º-144º
2x=216º
x=216º/2
x=108º

So, <span>∠DAB=∠BCD=x=108º

Answer: </span>∠DAB=108º  (B)
8 0
3 years ago
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a store sells a 5 lb box of detergent for $5.25 and a 10 lb box of detergent for $9.75 ` which size box has the lowest price per
Andre45 [30]
The box of detergent has a lower cost per pound
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3 years ago
You are arranging a meeting for 56 people. You want 8 people at each table. How many tables do you need?
Lubov Fominskaja [6]

to figure out how many tables we need, we need to split 56 into groups of 8

we can do this by dividing

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8 0
4 years ago
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What is the greatest number of rectangles 6cm x 4cm that can be cut from a piece of metal measures 16 cm x 20 cm?
Dominik [7]
Answer:

The greatest number of rectangles that can be cut from the piece of metal = 12

Explanation:

The dimension of the piece of metal = 16cm x 20cm

That is:

Length of the piece of metal = 20 cm

Width of the piece of metal = 16 cm

The dimension of the rectangle = 6cm x 4cm

Length of the rectangle = 6cm

Width of the rectangle = 4cm

The diagram below illustrates how the rectangles can be cut from the piece of metal

Considering the diagrams drawn above, and counting the rectangles formed, we can conclude that the greatest number of rectangles will be cut using the approach on the left, hence the greatest number of rectangles that can be cut is 12

7 0
1 year ago
I could really use your help:)
Colt1911 [192]

Answer:

Question 1: -3 and 6 in that order

Question 3: 3 and y=1/2x+3 in that order

Question 2: 2 and y=2x+4 in that order

Step-by-step explanation:

:)

3 0
3 years ago
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