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konstantin123 [22]
3 years ago
14

Solve for Z. No fractions or variables in solution.

Mathematics
1 answer:
Lorico [155]3 years ago
5 0

x + y - 7 = z

awesome

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Given the following geometric sequence, find the 12th term: {2, -4, 8, ...}.
BaLLatris [955]
2 times what = -4?
-2 does
-2 x 2 = -4

-4 time what = 8?
Again, -2.
-2 x -4 = 8

You could do this over and over again or make a table, or you can make a function.
f(n) = f(1) • r^{n-1}
f(1) in this case is 2.
f(n) = 2 • r^{n-1}
r is rate of change, which is -2.
f(n) = 2 • -2^{n-1}
To find the 12th number in the sequence, just substitute n for 12.
f(12) = 2 • -2^{12-1}
f(12) = 2 • -2^{11}
-2^11 = -2048
2 x -2048 = -4096
So the 12th number in the sequence will be -4096.
3 0
3 years ago
Is either x = 3 or x = 4 a solution to 3 +7 > 12?
Minchanka [31]

Answer:

It should be neither

Step-by-step explanation:

x+7>12

x>12-7

x>5

Its not 3 or 4.. its 5 so its neither of 3 and 4..

7 0
3 years ago
#freepoints disableedblack kid here hope you enjoy 85 points everyone give me a virtual high five
REY [17]

Answer:

Thanks bro

Step-by-step explanation:

one plus one = 2

7 0
3 years ago
Read 2 more answers
Write an equation for each question, please! (t = years after 1960)
VashaNatasha [74]

Answer:

<u>1)</u> y = - 0.54(25)

<u>2)</u> 0.4 = 98 - 0.54t

<u>3)</u> 0.6 = 2 + 0.54t

<u>4)</u> 98 - 0.54t = 2(2 + 0.54t)

(you asked for equations, so I <em>think </em>these are the equations you are looking for!)

Step-by-step explanation:

1)

<em>(given)</em> y = 98 - 0.54t

<em>(plugging in years after 1960)</em> y = - 0.54(25)

2)

<em>(given)</em> y = 98 - 0.54t

(changing percent to decimal) 40% = 0.4

(plugging in percentage) 0.4 = 98 - 0.54t

3)

<em>(given)</em> y = 2 + 0.54t

(changing percent to decimal) 60% = 0.6

(plugging in percentage) 0.6 = 2 + 0.54t

4)

<em>(given)</em>

<em>(male)</em> y = 98 - 0.54t

<em>(female)</em> y = 2 + 0.54t

<em>(setting up the equation so male is 2 times the percent of female)</em>

98 - 0.54t = 2(2 + 0.54t)

6 0
2 years ago
Read 2 more answers
Ali picked three numbers out of a hat, the lowest number was 11, the range was 13, the medium was 17, write Ali's numbers in the
BabaBlast [244]

Answer:

11, 17, 24

Step-by-step explanation:

Given;

Lowest number = 11

The range = 13

Medium = 17

Range = highest number - lowest number

highest number = lowest number + range

Highest number = 11 + 13 = 24

Median number is given as 17

Therefore,

The numbers are;

11, 17, 24

4 0
3 years ago
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