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maks197457 [2]
3 years ago
15

Help me please I will give you the brainliest please ;( :[​

Mathematics
1 answer:
sweet [91]3 years ago
6 0

Answer:

I'm not great with domain and range but for the 4th question the answer is b. and for the 5th part 1 the answer is a. and for part 2 the answer is d. i believe

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Both roots of x^2 + Nx + 144 are equal to each other. Find all the possible values of N.
Amanda [17]

Answer:

N=+24,-24

Step-by-step explanation:

Well this is a quadratic equation and we can make further deductions using it's discriminant

b²-4ac=0

N²-4(1×144)=0

N²-576=0

N²=576

N=√576

N=+24,-24

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2 years ago
While shopping in France, Johnny notices the cost of apples is 3.20€/kg. Johnny isn't familiar with Euros or kilograms, and need
pochemuha

Step-by-step explanation:

3.2÷0.88=3.636$

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3.636/2.2lbs

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3 years ago
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F(x)=8_-4x-x^3. g(x)=x^2+7x-9. Find f(x)+g(x)
11111nata11111 [884]

(8 - 4x -  {x}^{3} ) + ( {x}^{2}  + 7x - 9) \\  =  -  {x}^{3}  +  {x}^{2}  - 4x + 7x + 8 - 9 \\  =  -  {x}^{3}  +  {x}^{2}  + 3x - 1
(8x - 4x -  {x}^{3} ) + ( {x}^{2}  + 7x - 9) \\  -  {x}^{3}  +  {x}^{2}  + 8x - 4x + 7x - 9 \\  -  {x}^{3}  +  {x}^{2}  + 11x - 9
The answer is either B, and you forgot to put in the ^2 in the answer choice, or C, and you forgot to put an x where there is a _ in the question.

Check the actual question (the one you recieved, not the one posted here) and see where the mistakes are. If f(x) = 8x - 4x - x^3, then your answer is C. However, if B is actually -x^3 + x^2 + 3x - 1, then the answer is B.
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3 years ago
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Its lil turbo and mr beef cKE

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14) Simplify. 6(3x - 5) + 2(3x - 5) - 8(3x - 5)
PSYCHO15rus [73]

Answer:

6(3x - 5) + 2(3x - 5) - 8(3x - 5) = 0

Step-by-step explanation:

7 0
3 years ago
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