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3 years ago

How do i solve this?

Mathematics

1 answer:

tigry1 [53]3 years ago

7 0

Answer:

x = 5

Step-by-step explanation:

The corresponding segments are proportional, so you can write any of several equations relating the different segment lengths. Here's one way:

top segment/bottom segment = x/(x+5) = (x-2)/(x+1)

Multiply by the product of denominators:

(x +1)x = (x +5)(x -2)

x² +x = x² +3x -10 . . . . . eliminate parentheses

10 = 2x . . . . . . . . . . . . . . add 10 -x -x² to both sides of the equation

5 = x . . . . . divide by 2

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ehidna [41]

Answer:

$V = 216x - 60x^2 + 4x^3$

Step-by-step explanation:

The volume V of the fountain is equal to:

V = L*W*h

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So, replacing L, W and h on the equation of the volume, we get:

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4 years ago

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3 years ago

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2 years ago

URGENT HELP NEEDED WITH TRIANGLES/CIRCLES! IF ET = 31, DE = 65, AND DC= 74, FIND THE PERIMETER OF DCE.

snow_tiger [21]

ES = ET

and

DS = DR

and

CR = CT ( because each pair are tangents to the circle)

So ES = 31 and Ds = 65-31 = 34

and DR = 34 and CR = 74- 34 = 40.

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Therfore the line EC = 31 + 40 = 71

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3 years ago