2 2/8 - 1 7/8 = ?please help me

Mathematics

2 answers:

kirza4 [7]3 years ago

7 0

Answer:

2 2/8 - 1 7/8 = 3/8

diamong [38]3 years ago

6 0

Answer:

0.375 or 3/8 you welcome

Step-by-step explanation:

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sashaice [31]

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Step-by-step explanation:

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3 years ago

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Bank A charger a 4$ service fee and $0.25 for each check written. Bank B charges $5 and $0.20 for each check written . How many

Andre45 [30]

1. A person would need to write 20 checks each month for the two banks to charge the same amount in fees.
2. The account from Bank A would cost less if a person were to write 10 checks in a month.

Explanation:
1. Bank A = 0.25x + 4, Bank B = 0.2x + 5

0.25x + 4 = 0.2x + 5
0.05x = 1
x = 20

2. Bank A = 0.25(10) + 4 = $6.5
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Therefore, it would cost less to write 10 checks from Bank A.

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4 years ago

Express the product of z1 and z2 in standard form given that <img src="https://tex.z-dn.net/?f=z_%7B1%7D%20%3D%20-3%5Bcos%28%5Cf

Marta_Voda [28]

Answer:

Solution : 6 + 6i

Step-by-step explanation:

$-3\left[\cos \left(\frac{-\pi }{4})\right+i\sin \left(\frac{-\pi }{4}\right)\right]\cdot \:2\sqrt{2}\left[\cos \left(\frac{-\pi }{2}\right)+i\sin \left(\frac{-\pi }{2}\right)\right]$

This is the expression we have to solve for. Now normally we could directly apply trivial identities and convert this into standard complex form, but as the expression is too large, it would be easier to convert into trigonometric form first ----- ( 1 )

( Multiply both expressions )

$-6\sqrt{2}\left[\cos \left(\frac{-\pi }{4}+\frac{-\pi \:\:\:}{2}\right)+i\sin \left(\frac{-\pi \:}{4}+\frac{-\pi \:\:}{2}\right)\right]$

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