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Sergeu [11.5K]
3 years ago
9

if you make a scale drawing of a tree using the scake 5in =27ft uf the tree is 67.5 ft tall how tall is the scale drawing

Mathematics
1 answer:
shtirl [24]3 years ago
3 0
To get from 27 to 67.5 you multiply 27 by 2.5 so you need to do the same to the 5
5x2.5=12.5
=12.5in
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Answer:

The second one

Step-by-step explanation:

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Write the slope-intercept form of the equation that passes through the given points. (separate equations for each of them)
guajiro [1.7K]

Answer:

Part 1) y=-\frac{1}{5}x-1

Part 2) y=3x-16

Part 3) y=4

Step-by-step explanation:

we know that

The equation of the line into slope intercept form is equal to

y=mx+b

where

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b is the y-intercept

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The formula to calculate the slope between two points is equal to

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m=\frac{-2+3}{5-10}

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we have

m=-\frac{1}{5}

point (10,-3)

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-3=-\frac{1}{5}(10)+b

-3=-2+b

b=-3+2=-1

substitute

y=-\frac{1}{5}x-1

Part 2) we have

(6,2) (7,5)

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The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

substitute

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m=3

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2=3(6)+b

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substitute

y=3x-16

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m=\frac{y2-y1}{x2-x1}

substitute

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m=\frac{0}{-11}

m=0

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The y-intercept b is equal to the y-coordinate

<em>therefore</em>

The equation of the line is

y=4

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3 years ago
Can someone please help me
Marrrta [24]

Based on the knowledge of <em>trigonometric</em> expressions and properties of <em>trigonometric</em> functions, the value of the <em>sine</em> function is equal to - √731 / 30.

<h3>How to find the value of a trigonometric function</h3>

Herein we must make use of <em>trigonometric</em> expressions and properties of <em>trigonometric</em> functions to find the right value. According to trigonometry, both cosine and sine are <em>negative</em> in the <em>third</em> quadrant. Thus, by using the <em>fundamental trigonometric</em> expression (sin² α + cos² α = 1) and substituting all known terms we find that:

\sin \theta = -\sqrt{1 - \cos^{2}\theta}

\sin \theta = - \sqrt{1 - \left(-\frac{13}{30} \right)^{2}}

sin θ ≈ - √731 / 30

Based on the knowledge of <em>trigonometric</em> expressions and properties of <em>trigonometric</em> functions, the value of the <em>sine</em> function is equal to - √731 / 30.

To learn more on trigonometric functions: brainly.com/question/6904750

#SPJ1

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Answer:

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