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Lady_Fox [76]
3 years ago
8

Based on your choices from the previous question, explain why the others cannot be used for surface area.

Mathematics
1 answer:
il63 [147K]3 years ago
7 0
Need more info like what are you talking about
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Answer C and D please
DENIUS [597]

Answer:

C. solution:

3(3c-2) = 5(2c-1)

or, 9c-6 = 10c-5

or, -6+5 =<em> </em>10c-9c

or, -1 = 1c

Hence, c = -1.

D. solution:

5(5-2a) = 4(6-a)

or, 25-10a = 24 - 4a

or, 25-24 = -4a+10a

or, 1 = 6a

or, 1/6 = a

Hence, a = 1/6.

6 0
3 years ago
Melvin is helping his teachers plan a field trip. There are 255 people going on the field trip and each school bus holds 56 peop
anzhelika [568]

255/56 = 4.55....

You can't have 0.55... buses so you round that up to 1.

Therefore 4+1 = 5 so 5 buses would be the minimum.

5 0
3 years ago
Read 2 more answers
Flora made 8 withdrawls of $65 each from her bank account. What was the overall change in her account
ohaa [14]

withdrawals are when cash is taken out from the account

Flora withdraws an amount of $75 at a time from her bank account

she makes 7 such withdrawals 

one withdrawal she takes out - $75

then seven withdrawals leads to - $75 x 7 = $525 

then overall change in her account has been a net withdrawal of $525

so the overall change in the account is -$525

7 0
3 years ago
A photograph measures 12 centimetres by 20 centimetres. A printing company enlarges the photo. The length of the enlarged photo
Studentka2010 [4]

Answer:

36 centimeters

Step-by-step explanation:

Since one side is 60 centimeters, just divide by 20 and get 3

Then multiply 12 by 3 and get 36

I hope this helps!

6 0
3 years ago
What is the area of a regular heptagon with side length of 6 meters and a distance from the to the vertex of 6 meters? round you
Ahat [919]
Apothem = side length / 2*tan(180 / number of sides)
apothem = side length / 2*tan (180 / 7)
apothem = 6 / (2*tan( <span> <span> <span> 25.7142857143</span></span></span>))
apothem = 6 / 2*0.48157
<span><span><span>apothem = 6.2296239384 </span> </span> </span>

Polygon area = (# of sides * side length * apothem) / 2
Polygon area = ( 7 * 6 * <span>6.2296239384) / 2
</span><span><span><span>Polygon area = 130.8221027064 </span> </span> </span> 



8 0
3 years ago
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