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Marta_Voda [28]
3 years ago
14

The legend on a map states that 1 cm is 20 km. If you measure 9 centimeters on the map, how many kilometers would the actual dis

tance be?
Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0

Making a proportion helps solve this problem. Cm on top, km on bottom.


1 9

---- = ----

20 ?


Cross multiply to get 1? = 180


? = 180.


The distance is 180 km.

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How to find area of parallelogram with coordinates of verticles?
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A=b\cdot h
Where b is its base and h, its height.
You get b's value applying distance between two points formula.
If A and B points form the base:
A(x_1,y_1)\;\;\;\;B(x_2,y_2) \\  \\ 
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And h is the perpendicular distance between both bases.
You can visit next link to know further about it:
https://www.ck12.org/geometry/Distance-Between-Parallel-Lines/lesson/Distance-Between-Parallel-Lines
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3 years ago
A line includes the points 2, 10 and 0, 2 what is its equation in slope intercept form ​
IRINA_888 [86]

Answer:

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Step-by-step explanation:

y = mx + b ( slope-intercept)

1. Find Slope:

\frac{y^2 - y^1}{x^2 - x^1}

Lets name 2 as y2 and 10 as y1. And 0 as x2 and 2 as x1.

\frac{2-10}{0-2}  =  \frac{-8}{2} = -4

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2. Find y-intercept:

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3. Put into slope-intercept form:

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Hope that helps! :D

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3 years ago
If x-2y=10 and x≠0, what is the value of 2x/y+5
VladimirAG [237]

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= 4

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2 years ago
ABCD is a isosceles trapezoid with AB=10, DB=8 and angle A=120 degrees what is the length of CD
spin [16.1K]

Answer:

The answer is 10.6 (I'm sorry if it's wrong)

Step-by-step explanation:

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3 years ago
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