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IRINA_888 [86]
3 years ago
7

(1/4) raised to the 3z-1 = 16 raised to the z+2 multiplied by 64 raised to the z-2

Mathematics
1 answer:
meriva3 years ago
6 0

:) Brainliest pls?

Answer:

z = 3/8

Step-by-step explanation:

(1/4)^(3z-1) = (64^(z-2)) * (16^(z+2))

The work is too much. I don't have a camera to take a photo of the paper.

z = 3/8

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jennifer walks 8 miles in the same time she can jog 13 miles. if her jogging speed is 8mph faster than her walking speed, how fa
Elanso [62]

Answer:

12.8mph

Step-by-step explanation:

Let 'w' represent her walking speed

->if her jogging speed is 8mph faster than her walking speed

Jogging speed=  w+8

Using the time equation i.e time = dist/speed

For walking when distance is 8miles

time = dist / speed= 8/w hrs

For jogging when distance is 13miles

time = dist / speed= 13/(w+8) hrs

Equating the time

jog time = walk time

13/(w+8) = 8/w

By cross multiplying it

13w = 8w + 64

5w = 64

w=64/5

w=12.8mph

Therefore, 12.8mph is her walking speed.

5 0
3 years ago
Which number line represents the solution set for the inequality 2x – 6 ≥ 6(x – 2) + 8?
vovangra [49]

Answer: x≤ -0.5

Step-by-step explanation:  Graph the two lines or solve for x:

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2x – 6 ≥ 6x – 12 + 8

2x – 6 ≥ 6x – 4

-4x  ≥  2

  x  ≤  -1/2  [Inequality is reversed when multiplying or dividing by a negative number]

The number line is anything less than or equal to - 1/2

Or one can plot each side of the inequality and note the interception point (x = -(1/2)).

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Write the ratio as a fraction in the fourth column of the table.

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You select every tenth student on an alphabetical list of the students in your school. You survey the selected students in their
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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

mark me brainlist

7 0
2 years ago
Read 2 more answers
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