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sweet [91]
3 years ago
11

Please help i don’t understand

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
5 0

Step-by-step explanation:

f(x) = x³ − 8x² − 12x + 96

Factor by grouping:

f(x) = x² (x − 8) − 12 (x − 8)

f(x) = (x² − 12) (x − 8)

f(x) = (x + √12) (x − √12) (x − 8)

f(x) = (x + 2√3) (x − 2√3) (x − 8)

The roots are ±2√3 and 8.

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{(2, –3), (4, 6), (6, 6), (2, 3)} Function or not
Marta_Voda [28]

Answer:

function

Step-by-step explanation:

(2-3)x4.6x6.6x2.3fmi○

↓

-1x4.6x6.6x2.3fmi○

-1x4.6x6.6x2.3fmx1

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-1x4.6x6.6x2.3fm

-69.828fm

7 0
3 years ago
Can anyone help me please?
Anastaziya [24]

Answer:

576

Step-by-step explanation:

3 x 8= 24

24^2= 576ft

5 0
3 years ago
Read 2 more answers
What is the surface area of the solid
Stella [2.4K]

Answer:

189

Step-by-step explanation:

each of the triangles has a area of 35 cm, so 35x4=140, then the square is 49 cm so its 140+49=189.

5 0
3 years ago
Multiply the polynomials. (x2 – 4) (x2 + 3x – 5)
tiny-mole [99]

Answer:

\boxed{ \bold{ \boxed{ \sf{ {x}^{4}  + 3 {x}^{3}  - 9 {x}^{2}  - 12x + 20}}}}

Step-by-step explanation:

\sf{( {x}^{2}  - 4)( {x}^{2}  + 3x - 5)}

Use distributive property

\dashrightarrow{ \sf{ {x}^{2} ( {x}^{2}  + 3x - 5) - 4( {x}^{2}  + 3x - 5)}}

\dashrightarrow{ \sf{ {x}^{4}  + 3 {x}^{3} - 5 {x}^{2} - 4 {x}^{2}    - 12x + 20}}

Collect like terms

\dashrightarrow{ \sf{ {x}^{4}  +3 {x}^{3}  - 9 {x}^{2}  - 12x + 20}}

Hope I helped!

Best regards! :D

7 0
4 years ago
The number of pledges that Melissa collected for this year's charity walk is 8 less than half the number of pledges she collecte
padilas [110]

Answer:

1/2x - 8

Step-by-step explanation:

Let

x = number of pledges she collected last year

The number of pledges that Melissa collected for this year's charity walk is 8 less than half the number of pledges she collected last year.

Number of pledges she collected this year = 1/2x - 8

The expression which represents the number of pledges she collected this year = 1/2x - 8

5 0
3 years ago
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