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3 years ago

5

Make a groups of ten and ones. draw your work. write how many.

1 answer:

SVETLANKA909090 [29]3 years ago

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Google it best answer

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If tan A = 4/5; what does CSC A =?<br> Round to nearest tenth.

ZanzabumX [31]

Answer:

1.6

Step-by-step explanation:

$\tan \: A = \frac{4}{5} \\ \\ \cot \: A = \frac{1}{ \tan \: A } = \frac{1}{ \frac{4}{5} } = \frac{5}{4} \\ \\ csc\: A = \sqrt{1 + {cot}^{2}\: A} \\ = \sqrt{1 + { \bigg( \frac{5}{4} \bigg)}^{2} } \\ = \sqrt{1 + \frac{25}{16} } \\ = \sqrt{\frac{16 + 25}{16} } \\ = \sqrt{\frac{41}{16}} \\ = \frac{ \sqrt{41} }{4} \\ = \frac{6.40312424}{4} \\ = 1.60078106 \\ \therefore \: csc \: A =1.6$

6 0

3 years ago

manager needs to buy chairs for his office the price for 1 chair is 79.99 dollars. If the manager buys 2 or more chairs then he

artcher [175]

1 chair is 79.99
40% discount
79.99 ÷ 100 =0.7999
0.7999 × 60 = 47.994
47.994 rounded down is $47.99
79.99-47.99=30.00
he saved $30

3 0

3 years ago

12th grade Math. I'm sorta confused. Help?

ss7ja [257]

So, this is pretty simple actually.

3^c2 * 8^c6 * 1 = 84

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3 years ago

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What is orthogonal in linear algebra

o-na [289]

This is a square matrix whose entries are real and rows and columns are orthogonal unit vectors.

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3 years ago

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1/2 X plus X -15+1/2 X +100+ X -25 equals 540

Andrew [12]

Answer:

1/2 X + X -15 + 1/2 X + 100 + X -25 = 540

1/2x + x + 1/2x + x -15 + 100 -25 = 540

3 x + 60 = 540

3x + 60 - 60 = 540 - 60

3/3x = 480/3

x = 160

Step-by-step explanation:

1/2 X + X -15 + 1/2 X + 100 + X -25 = 540

1/2x + x + 1/2x + x -15 + 100 -25 = 540

3 x + 60 = 540

3x + 60 - 60 = 540 - 60

3/3x = 480/3

x = 160

7 0

3 years ago