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8090 [49]
2 years ago
5

HELP PLZZZZZZZ STANDARD FORM

Mathematics
1 answer:
liraira [26]2 years ago
7 0

Answer:

-12n^{2} + 12

Step-by-step explanation:

h(n) = -4n + 4           (h o g) (n)

g(n) =  3n^{2} - 2

-4(3n^{2} - 2) + 4

-12n^{2} + 8 + 4

-12n^{2} + 12

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6 0
3 years ago
By which rule are these triangles congruent?
GrogVix [38]

Answer:

sss

Step-by-step explanation:

3 0
2 years ago
The diagram shows a solid shape.
Stolb23 [73]

Answer:

756\pi

Solution,

Volume of cone=270 pi cm^3

\frac{1}{3} \pi \:  {r}^{2}  = 270\pi \\ or \:  {r}^{2}  \times 10 =   270 \times 3 \\ or \:  {r}^{2}  \times 10 = 810 \\ or \:  {r}^{2}  =  \frac{810}{10}  \\ or \:  {r}^{2}  = 81 \\ or \: r =  \sqrt{81}  \\ or \: r =  \sqrt{ {9}^{2} }  \\ r = 9 \: cm

Volume of semisphere:

\frac{2}{3} \pi {r}^{3}  \\  = \:  \frac{2}{3}  \times \pi \times 9 \times 9 \times 9 \\  = 486\pi

Total:

270\pi + 486\pi \\  = 756\pi

hope this helps...

Good luck on your assignment..

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