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harkovskaia [24]
3 years ago
13

Find the value of x (please help)

Mathematics
1 answer:
notka56 [123]3 years ago
5 0

Answer:

ok

Step-by-step explanation:

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Select Equal or Not Equal to correctly classify each statement.
Black_prince [1.1K]
The first problem is true because with multiplication it doesn't matter which order it is in.

The second problem is false because you will get a different quotient depending on which numbers are on which side of the equation.
3 0
3 years ago
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When a number is divided by -3, the result is 12 more than the number what is the number?
olga55 [171]
X/-3 = 12 + x
x = -36 - 3x
4x = 36
x= = 9

The number is 9.

8 0
3 years ago
(csc x - 1) (csc x + 1)
victus00 [196]
<h2>Explanation:</h2>

Here we have the following expression:

(csc x - 1) (csc x + 1)

So we need to extend this. Remember that the difference of squares tells us:

(a-b)(a+b)=a^2-b^2

So here:

a=cscx \\ \\ b=1

Thus:

(csc x - 1) (csc x + 1)=csc^2x-1 \\ \\ \\ But: \\ \\ cscx=\frac{1}{sinx} \\ \\ \\ Then: \\ \\ csc^2x-1=\frac{1}{sin^2x}-1=\frac{1-sin^2x}{sin^2x}=\frac{cos^2x}{sin^2x}=cot^2x \\ \\ \\ Finally: \\ \\ \boxed{(csc x - 1) (csc x + 1)=cot^2x}

4 0
3 years ago
Find the slope of the line on the graph. Write yoyur answer as a frction or a whole number, not a mixed number or decimal.
BigorU [14]
Okay, so I'm almost positive the slope is m=1/1. I know this because the line rises one and runs one. 
7 0
2 years ago
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Consider the equation: 12x=13-x^212x=13−x 2 12, x, equals, 13, minus, x, squared 1) Rewrite the equation by completing the squar
Flauer [41]

Answer:

(x + 6)^2 = 49

x = 1    or x = -13

Step-by-step explanation:

Given

12x = 13 - x^2

Using Completing the Square

12x = 13 - x^2 ---- Add x^2 to both sides

x^2 + 12x = 13 - x^2 + x^2

x^2 + 12x = 13

Divide the coefficient of x by 2; then add the square to both sides

x^2 + 12x + 6^2 = 13 + 6^2

x^2 + 12x + 36 = 13 + 36

x^2 + 12x + 36 = 49

Factorize

x^2 + 6x + 6x + 36 = 49

x(x + 6) + 6(x + 6) = 49

(x + 6)(x + 6) = 49

(x + 6)^2 = 49

Hence, the equation is (x + 6)^2 = 49

Solving further

Take square root of both sides

(x + 6) = \sqrt{49}

x + 6 = \±7

x  = \±7- 6

This implies that

x = 7 - 6     or x = -7 -6

x = 1    or x = -13

HEnce, the solutions are x = 1    or x = -13

6 0
2 years ago
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