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ivanzaharov [21]
3 years ago
7

N^2/3=9 indices equation​

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
8 0

Answer:

Exponential equations

Step-by-step explanation:

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K/13 = 0.6/0.5 what does that equal
photoshop1234 [79]
\frac{k}{13} = \frac{0.6}{0.5} equals k = 15.6

First,
simplify \frac{0.6}{0.5} to 1.2. Your problem should look like: \frac{k}{13} = 1.2
Second, multiply both sides by 13. Your problem should look like: k = 15.6, which is the answer.
5 0
3 years ago
Hurry 50 points for correct answer
Ad libitum [116K]

Answer: <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

Step-by-step explanation:

The equation x=\sqrt{6x+7} can be solved by squaring both sides:

x^2 = 6x + 7\\\\x^2 - 6x - 7 = 0\\\\(x-7)(x+1) = 0

We can see that -1 and 7 are solutions, but make sure they are not extraneous by substituting them in the original equation:

1 = \sqrt{-1}\\ 7 = \sqrt{49}

The square root of 49 equals 7, but the square root of -1 is an imaginary number.

The correct choice is <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

4 0
3 years ago
PLZ HELP ME OVER HERE!!
riadik2000 [5.3K]

Answer:

x = 5

Step-by-step explanation:

If x + 5 = 10, then x would have to be 5 because 5 + 5 = 10.

The way you would solve this would be:

x + 5 = 10

subtract 5 from both sides of the equation

x + 5 - 5 = 10 - 5

simplify:

x = 5

5 0
3 years ago
Rewrite y = -(x + 2)2 – 5 in standard form.
xenn [34]

Answer:

y = - x² - 4x - 9

Step-by-step explanation:

Given

y = - (x + 2)² - 5 ← expand (x + 2)² using FOIL

  = - (x² + 4x + 4) - 5 ← distribute parenthesis by - 1

  = - x² - 4x - 4 - 5 ← collect like terms

   = - x² - 4x - 9 ← in standard form

8 0
3 years ago
(-1,2) (1,8)<br><br> Find the slope
mars1129 [50]
Slope: (y2-y1)/(x2-x1)
(8-2)/(1+1) = 6/2 = 3
The slope is 3
8 0
2 years ago
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