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adell [148]
3 years ago
6

A square piece of cardboard with each side 30 inches long hasa

Mathematics
1 answer:
Murljashka [212]3 years ago
7 0

Answer: 5 inches

Step-by-step explanation:

V = S * (30-2S)^2

V = S(900-120s+4s^2)

Volume = 4s^3 -120s^2 +900s

Find local maximum from graph at 5 (or take derivative = 0)

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Anyone care to help? :)
Elan Coil [88]
So when you factor this the answer would be (1w - 3)(5w + 1) because since 5 is an odd number you have to break it up with us only factores then you find the GCF for 3 and then you have to find the signs that when you multiply them it gives you - 14

7 0
3 years ago
If 40% of a number is 80 what is 25% of that number?
olga2289 [7]

Answer:

25% of 200 is 50

Step-by-step explanation

40% of a number is 80

.40 * n = 80

Divide each side by .4

.40 n/.4 = 80/.4

n = 200

The number is 200

Now lets find 25 percent of that number

.25 * 200 = 50


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4 years ago
Consider the Triangle Sum Theorem in relation to a right triangle. What conjecture can you make about the two acute angles of a
Anon25 [30]
They must be complementary. these 2 angles MUST equal 90 degrees because there is a right angle that is 90 degrees in the triangle already and all triangles have an angle sum of 180 degrees. the answer is complementary
7 0
3 years ago
Why is 1 + (−5) equal to −4? (1 point)
Dafna11 [192]

I'm pretty sure it's D

Filler to post

7 0
3 years ago
Read 2 more answers
PLEASE HELP!
Alexandra [31]

its the first one because for example [-12] and 4

the absolute value of -12 is 12 so its greater

8 0
3 years ago
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