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3 years ago

What value of c makes the equation true?

Mathematics

2 answers:

NikAS [45]3 years ago

7 0

Answer:D=9

Step-by-step explanation:15+9=24-1=23

Mrrafil [7]3 years ago

6 0

Answer:

Step-by-step explanation:

1 plus 1 plus 1

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Answer:

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Step-by-step explanation:

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3 years ago

Solve the system of equations. If the system has no solution, say that it is inconsistent. Graph the lines of the system.

Romashka-Z-Leto [24]

Answer:

The solution to the system of the equations will be:

$x=3,\:y=1$

Step-by-step explanation:

Given the system of the equations

$x+y=4$

$x-y=2$

solving the system of the equations

$\begin{bmatrix}x+y=4\\ x-y=2\end{bmatrix}$

$x-y=2$

$-$

$\underline{x+y=4}$

$-2y=-2$

solving

$-2y=-2$

Divide both sides by -2

$\frac{-2y}{-2}=\frac{-2}{-2}$

$y=1$

$\mathrm{For\:}x+y=4\mathrm{\:plug\:in\:}y=1$

$x+1=4$

$x=3$

Therefore, the solution to the system of the equations will be:

$x=3,\:y=1$

5 0

3 years ago

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Mazyrski [523]

Answer:

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Step-by-step explanation:

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3 years ago

If the cotangent and tangent are reciprocals of each other, then what is the cotangent of an angle if the tangent of the same an

Ad libitum [116K]

Answer:

The cotangent of the angle will be b/a

Step-by-step explanation:

Since the cotangent and tangent are reciprocals of each other and the tangent of the same angle is a/b where a and b are not zero,

then the cotangent will be the reciprocal of the value of the tangent

= 1 / (a/b)

= 1 x (b/a)

= b/a

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3 years ago

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Delvig [45]

Answer:I believe the answer is A

Step-by-step explanation:

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2 years ago