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Mekhanik [1.2K]
3 years ago
15

Which expression is equivalent to the expression 7^14÷7^2

Mathematics
1 answer:
Westkost [7]3 years ago
8 0

Answer:

7^14 / 7^2 = 7^(14 - 2) = 7^12


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How do you write 17/25 as a percentage ?
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Answer:

68%

Step-by-step explanation:

By using a scientific calculator

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an architect is making a scale drawing of a building that he will be designing. this building will be 75 feet tall. one the mode
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3 years ago
How do I solve this?
weqwewe [10]
IF:
|1/2.x -2/3.y = 7 and
|a.x - 8.y = -1

have no solution, that means these 2 linear equations ARE PARALLEL (since they can never meet). Reminder: 2 equations are parallel if they have the same coefficient , so let write each of the equation in the normal form:

a)1/2.x -2/3.y = 7→ -2/3.y = -1/2.x + 7 → y = 3/4.x - 21/2

b) a.x - 8.y = -1 → - 8.y = -a.x - 1 → y= a/8.x + 1 

a) and b) are // if (3/4) = (a/8), [the 2 coefficient OR the 2 slopes)
a/8 = 3/4 → a = 24/4 and a = 6 (Answer D) 
7 0
3 years ago
If the value of x is 14, what is the value of y?
Ghella [55]

I would need a bit more to answer that one my friend

8 0
3 years ago
20. A linear function is shown.
horsena [70]

Answer:

g(x) = (1/2)x + 3

f(x) = g(x) at (-1/2 , 13/4)

Step-by-step explanation:

g(x) and f(x) will have exactly one solution when they are not parallel (same slope) and when they are not equivalent functions (like doubling or halving all terms).

f(x) = (-5/2)x - 3

g(x) = (1/2)x + 3    <= choose an easy equation.

To find the solution, equate the two functions:

f(x) = g(x)

(-5/2)x - 3   =  (1/2)x + 3

(-5/2)x - (1/2)x = 3 + 3    <= move variables to one side, constants to other

(-6/2)x = 6   <= simplify

x = 6 / (-6/2)    <=isolate x

x = -6/12

x = -1/2

Substitute x = -1/2 into any equation to find y

g(x) = (1/2)x + 3

g(1/2) = (1/2)(1/2) + 3

g(1/2) = (1/4) + 3

g(1/2) = (1/4) + (12/4)   <= find common denominator to add

y = (13/4)   <= the function symbol can be replaced by y

The coordinates are (-1/2 , 13/4).

5 0
3 years ago
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