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frosja888 [35]
2 years ago
7

Tell whether x and y show direct variation. Explain your reasoning.

Mathematics
1 answer:
Alex Ar [27]2 years ago
4 0

Answer: I may not be correct

This is direct variation. If you move the x to the other side of the equation, it will become:

y = x

Direct variation is when y is equal to x times a constant. In this example, y is equal to 1 * x.

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A triangle with vertices at A(0,0), B(0,4), and C(6,0) is dilated to yield a triangle with vertices at A(0,0), (B(0,10), and C (
dezoksy [38]

The required scale factor for the dialed triangle is given by SF= 6.28

A triangle with vertices at A(0,0), B(0,4), and C(6,0) is dilated to yield a triangle with vertices at A(0,0), (B(0,10), and C (C(15,0).

<h3>What is scale factor?</h3>

The scale factor is defined as the ratio of modified change in length to the original length.

Since, the height and base of the triangle is y coordinate of B and x coordinate of c is given by 4, 6
Area of triangle =1/2(base x height)
                         = 1/2 (4 x 6)
                         =   4.8
Similarly, for dilated triangle
Area of dilated triangle =  30

Now, scale factor(SF) = area of dilated triangle \ area of triangle
SF = 30/4.8
SF = 6.25

Thus, the required scale factor is SF = 6.25

 

Learn more about line Scale factor:

brainly.com/question/22312172

#SPJ1

4 0
2 years ago
Help please, and explain.
Korvikt [17]

Answer: 2x + y

<u>Step-by-step explanation:</u>

logₐ(3) = x

logₐ(5) = y

logₐ(45) = logₐ(3²· 5)

             = logₐ(3)² + logₐ(5)

             = 2 logₐ(3) + logₐ(5)

             = 2     x      +   y        <em>substituted given values (stated above)</em>


4 0
3 years ago
Read 2 more answers
BRAINLY FOR THE FASTEST WITH GOOD EXPLANATIONS
Neporo4naja [7]

So, when we're tasked with things like this, rewriting everything in terms of sine and cosine and combining fractions often trivializes things, so doing just that gives us:

\frac{\frac{1}{\cos{x}}-\frac{1}{\sin{x}}}{\frac{\cos{x}}{\sin{x}}-1}= \\\frac{\frac{=(\cos{x}-\sin{x})}{\cos{x}\sin{x}}}{\frac{\cos{x}}{\sin{x}}-\frac{\sin{x}}{\sin{x}}}=\\\frac{-(\cos{x}-\sin{x})}{\cos{x}\sin{x}}*\frac{\sin{x}}{\cos{x}-\sin{x}}=\\-\frac{1}{\cos{x}}

So out expression is 1/cos(x).

4 0
3 years ago
Please help i dont get it <br>20 POINTSS ​
Sloan [31]

Answer:

P( not win) =  2/ (n+2)

Step-by-step explanation:

There are n+2 total possibilities

There are n winners

not win = n+2 - n = 2

P( not win) = not win / total

                   = 2/ n+2

3 0
3 years ago
there are 112 males and 78 females working at a hospital. what percentage of hospitals workforce is females?
Juli2301 [7.4K]
<span>112+78=total workforce=190
so 78/190=.410526=41.0526%
</span>
6 0
3 years ago
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