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xxMikexx [17]
3 years ago
10

Which expression represents the phrase, "one third the sum of 12 and a number"?

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
8 0
1/3(12 + x) <==

the sum means add....so 1/3 of the sum (12 + x).....1/3(12 + x)
maxonik [38]3 years ago
5 0
If anything id say the last one  13(12+x)
 :)
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seraphim [82]

Slope formula: \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Slope of line one: -\frac{1}{2}

Slope of line two: \frac{1}{2}

Slope of line three: -\frac{2}{3}

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3 years ago
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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

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r = ∛1161

r = 10.5101942

r ≈ 10. 51

surface area of a sphere = 4πr²

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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.

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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
3 years ago
VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.
ollegr [7]

Answer:

D

Step-by-step explanation:

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Write and solve an equation to find the value of X
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3 years ago
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