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Levart [38]
3 years ago
6

determine os valores de x e y sabendo que os numeros x,6 e 27 sao diramente proporcionais aos numeros 2, y e 18 nessa ordem

Mathematics
1 answer:
bazaltina [42]3 years ago
3 0

Answer:

x=3 e y=4

Step-by-step explanation:

x/2=6/y=27/18

...

x/2=27/18

18.x=2.(27)

18x=54

x=54/18

x= 3

...

6/y=27/18

27y=6.(18)

27y=108

y=108/27

y=4

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The area is the length times the width. Find area of shapes by counting unit squares. Some shapes will require combining partial square units to find area.<span>  

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Area = Length * width  

The length is <span><span>5</span></span> centimeters. The width is <span><span>4</span></span> centimeters. So the area is <span><span>5 times </span>4</span> square centimeters.

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2 years ago
The sum of the measures of two adjacent angles is 72 degrees. The ratio of the smaller angle to the
Goryan [66]

Answer:

The larger angle is 54°

Step-by-step explanation:

Given

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θ > α

Sum = 72

α : θ = 1 : 3

Required

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First, we get the proportion of the larger angle (from the ratio)

The sum of the ratio is 1 + 3 = 4

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θ = Proportion * Sum

θ = ¾ * 72°

θ = 3 * 18°

θ = 54°

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2 years ago
Question 2c: Which dog sitting service is better if you need 5 hours of service? Explain your answer PLEASE!
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8 0
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Use the given information to answer the following questions. center (3, -9, 3), radius 5 (a) Find an equation of the sphere with
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b) The intersection of this sphere with the y z-plane the x- co-ordinate

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Step-by-step explanation:

a) The equation of the sphere having center (h,k,l) and radius r is

(x-h)^{2} +(y-k)^2+(z-l)^2 = r^2

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on simplification , we get solution

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x^{2} +y^{2} +z^{2}-6 x+18 y-6 z+74=0

Final answer :-

x^{2} +y^{2} +z^{2}-6 x+18 y-6 z+74=0

b) The intersection of this sphere with the y z-plane the x- co-ordinate

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