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valina [46]
4 years ago
6

I need help, please.

Mathematics
1 answer:
erik [133]4 years ago
3 0
Answer: A
16x^2 - 56xy + 49y^2
4^2x^2 - 2 • 4x • 7y + 7^2y^2
(4x)^2 - 2 • 4x • 7y + (7y)^2
=(4x-7y)^2
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The metric system is based on powers of what number?
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3 years ago
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Half of the students in an International School are Americans. One third of the remaining students are Europeans, and the rest a
Kazeer [188]

Answer:

450 students

Step-by-step explanation:

Let s = number of students

1/2 are Americans  1/2s are Americans

s -1/2s = number of students left

1/2 s = number of students left

1/3 of the students left are Europeans

1/3 (1/2s) = 1/6s  are Europeans

The rest are Australians = 150

Students = Americans + Europeans + Australians

   s          =   1/2s          +    1/6s    + 150

Combine like terms

s    = 1/2*3/3 *s + 1/6s +150

s = 3/6s + 1/6s +150

s = 4/6s + 150

Subtract 4/6s from each side

s -4/6s = 150

6/6s - 4/6s = 150

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Multiply each side by 3

3* 1/3s = 150*3

s = 450

There are 450 students

3 0
4 years ago
Read 2 more answers
Please help me again
WARRIOR [948]
X=46

Explanation:
You just have to make 3x-28 and x+64 equal to each other and x would be 46.

m∠1=44

Explanation:
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7 0
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UkoKoshka [18]

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Step-by-step explanation:

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Here is the answer:

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2 years ago
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