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Dafna11 [192]
3 years ago
12

Find the zeros of the function f(x)=2x^2-17.5x+35.6f(x)=2x 2 −17.5x+35.6 to the nearest hundredth.

Mathematics
1 answer:
masha68 [24]3 years ago
5 0

Try this option (answers: 5.53 and 3.22)

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If a and b are positive constants and if a(x-y) = b(y-x), what is the value of the ratio of x/y?
Mekhanik [1.2K]

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Step-by-step explanation:

a(x-y)=b(y-x)

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8 0
3 years ago
Find an equation in rectangular coordinates for the cylindrical equation r = 2sintheta
frutty [35]

Answer:

x^2+(y-1)^2=1

Step-by-step explanation:

The given cylindrical equation is

r=2\sin \theta

Multiply both sides by r.

r^2=2r\sin \theta           .... (1)

The required formulas are

x=r\cos \theta,y=r\sin \theta,r^2=x^2+y^2

Substitute r\sin \theta =y,r^2=x^2+y^2 in equation (1).

x^2+y^2=2y

x^2+y^2-2y=0

Add 1 on both sides.

x^2+(y^2-2y+1)=1

(x-0)^2+(y-1)^2=1^2                    [\because (a-b)^2=a^2-2ab+b^2]

It is the equation of a circle centered at (0,1) with radius 1.

Therefore, the equation in rectangular coordinates is x^2+(y-1)^2=1.

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3 years ago
A cylindrical barrel has a radius of 7.6ft and height of 10.8ft. Tripling which dimensions will triple the volume of the barrel?
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Both height and radius.

Hope this helps! (:
5 0
3 years ago
Read 2 more answers
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