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vladimir2022 [97]
3 years ago
12

1/4(z 3z) 7=−z 1 please help with this ive been stuck

Mathematics
1 answer:
____ [38]3 years ago
4 0

Answer:

z=0

Step-by-step explanation:

if the equation was 1/4(3z)7=-1z

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michelle is 3 times as old as her sister tina. Tina is 4 years younger than michelle. How old is tina now?
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Answer:

Tina's age = 2 years

Step-by-step explanation:

Tina's age = x

Michelle's age = 3 * x = 3x

Tina is 4 years younger than Michelle.

x = 3x - 4

Add 4 to both side

x +4 = 3x

Subtract x from both sides

4 = 3x - x

4 = 2x

Divide both sides by 2

4/2 = x

2 = x

Tina's age = 2 years

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Answer:

She got 7 correct in multiple choice and 24 out of T/F

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Circle A has center of (4, 5), and a radius of 3 and circle B has a center of (1,7), and a radius of 9. What steps will help sho
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Answer:

Step-by-step explanation:

The radius of a circle is independent of the location of its center, and circles are always similar.  Here, therefore, the circles are similar; their shapes are exactly the same.  Only the radii differ from one another.  The radius of Circle A is 3 and that of Circle B is 9; thus the radii differ by a factor of 3.

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Question 5 (Fill-in-The Blank Worth 5 points)
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A byte is a unit used to measure computer memory. Other units are based on the number of bytes they represent. The table shows t
NeTakaya

Answer:

  • A) 2^{30} kilobytes
  • B) 2^{30} megabytes
  • C) In order to convert the number of bytes per unit to the number of bits per unit you need to multiply the number of bytes by 8.

Step-by-step explanation:

<u>Part A: ​ How many kilobytes are there in 1 terabyte? The final answer should be left in exponential form.</u>

1 terabyte = 2^{40} bytes

1 kilobytes = 2^{10} bytes

⇒ 1 terabyte = 2^{40} / 2^{10} = 2^{30} kilobytes

<u>Part B: How many megabytes are there in 1 petabyte? The final answer should be left in exponential form.</u>

1 megabyte = 2^{20} bytes

1 petabyte = 2^{50} bytes

⇒ 1 petabyte = 2^{50}/2^{20}=2^{30} megabytes

<u>Part C: Another unit used to measure computer memory is a bit. There are 8 bits in a byte. Explain how you can convert the number of bytes per unit to the number of bits per unit.</u>

In order to convert the number of bytes per unit to the number of bits per unit you need to multiply the number of bytes by 8.

1 byte = 8 bits

2 bytes = 2*8 bits = 16 bits

3 bytes = 3*8 bits = 24 bits

etc.

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