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alisha [4.7K]
2 years ago
15

Y(x)=?????????????????????

Mathematics
1 answer:
Ghella [55]2 years ago
5 0

Answer:

y(x) = (-1/18)(x+3)(x+2)(x-1)(x-3)

Step-by-step explanation:

There are 4 x-intercepts: -3, -2, 1, 3

So y(x) = C(x+3)(x+2)(x-1)(x-3)

At x = 0, y-intercept is -1

so -1 = C*3*2*(-1)*(-3) = 18C,

C = -1/18

Then y(x) = (-1/18)(x+3)(x+2)(x-1)(x-3)

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Geometry, plz help!
astra-53 [7]

Answer:

17. surface area ≈ 441.84

04π m² or  1387.38  m²

18. Ratio of volumes = 8/27

19. volume of the smaller solid = 339 yards³

Step-by-step explanation:

17 .

To find the surface area of the sphere we have to find the radius of the sphere first.

volume of a sphere = 4/3πr³

volume = 1548π m³

r = ?

volume of a sphere = 4/3πr³

1548π = 4/3 × π × r³

multiply both sides by 3/4

1548π × 3/4 = πr³

4644π/4 = πr³

1161π = πr³

divide both sides by π

r³ = 1161

cube root both sides

r = ∛1161

r = 10.5101942

r ≈ 10. 51

surface area of a sphere = 4πr²

surface area = 4 × π × 10.51²

surface area = 4 × 110.4601  × π

surface area = 441.8404π m²  

surface area = 441.8404 × 3.14 = 1387.378856  m² ≈ 1387.38 m²

18

If two figure or solid are similar with scale factor or ratio of x/y then the ratio of their volume is (x/y)³. If the ratio of of two similar prism is 2 : 3 the volume will be (2/3)³ = 8/27 .

19

If two solids are similar then the ratio of their surface area is the squared of the scale factor.

121/361 = (x/y)²

square root both sides

x/y = 11/19

If two solids are similar then the ratio of their volume is the cube of the scale factor.

(11/19)³ = a/1747

1331/6859  = a/1747

cross multiply

6859a = 2325257

divide both sides by 6859

a = 2325257/6859

a = 339.008164455

a ≈ 339 yards³

volume of the smaller solid ≈ 339 yards³

4 0
2 years ago
CosA/secA+sinA/cosecA=1 ​
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Step-by-step explanation:

please mark me as brainlest

4 0
1 year ago
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seraphim [82]

Answer:

2nd option

y > 6 and y < 2

Step-by-step explanation:

as the value of y can not be greater than 6 and less than 2 at the same time, the 2 inequalities have no common solutions

theefore no solution

8 0
2 years ago
True or false? About 10 1/2 million more people live in Cairo than in Washington DC?
mixas84 [53]
7.772 million people live in Cairo.
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So it's false.
6 0
3 years ago
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What is 18% of 50?<br> _90<br> _50<br> _36<br> _9<br> _18
FrozenT [24]

Answer:

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Step-by-step explanation:

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3 years ago
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