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zalisa [80]
3 years ago
14

Find a value of k for which the following system has only one solution:

Mathematics
1 answer:
densk [106]3 years ago
4 0
K(cannot equal (the = sign with the line through it) -2
k(=/)-2

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413/19 and I have to check using multiplication answer fast pls I’ll give 25 points
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Write an equation of the line that is parallel to y = 1/2x + 3 and passes through the point (10, -5)
Pavlova-9 [17]
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3 years ago
Read 2 more answers
Find the area of △LKJ.
nirvana33 [79]

Answer:

A=600\: u^{2}

<u>The correct answer is letter c.</u>

Step-by-step explanation:

The area equation of a triangle is given by:

A=\frac{bh}{2}  (1)

Where:

b is the base

h is the height

Let's find first the angle MJK (α), using the tangent definition.

tan(\alpha)=\frac{24}{32}

\alpha=tan^{-1}(\frac{24}{32})

\alpha=36.9^{\circ}

Now, if α = 37° then β (angle JLK) must be:

37^{\circ} + \beta + 90^{\circ}=180^{\circ}

\beta=53^{\circ}

Now, we can find the distance ML using again the tangent definition:

tan(\beta)=\frac{24}{ML}

ML=\frac{24}{tan(53)}

ML=18

The base of the triangle LKJ will be:

b=32+ML=32+18=50

Therefore, using equation (1) the area of △LKJ will be:

A=\frac{50*24}{2}

A=600\: u^{2}

The correct answer is c.

I hope it helps you!

5 0
3 years ago
Tell whether the data show a direct variation. If so, Identify the constant of the variation. With steps.
vivado [14]

The answer is c I can help if you have anymore

4 0
3 years ago
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