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2 years ago

Another math problem, i really, really need help with this one -4x^2-3+4+3-5y^2+3y^2-5y^2

Mathematics

2 answers:

VLD [36.1K]2 years ago

4 0

Answer:

-4x*2 - 7y*2 + 4

Step-by-step explanation:

simplify by adding/subtracting the like terms

olga nikolaevna [1]2 years ago

4 0

Answer:

-4x^2 +4 -7y^2

Step-by-step explanation:

If you are talking about simplifying you would need to combine like terms. It isn't really hard, just combining like terms. It could be like this:

4x^2 (Stays the same because there are no other like terms for it.)

-3+4+3= -3+7=4

-5y^2 +3y^2 -5y^2 = -2y^2 -5y^2 = -7y^2

So it would be 4x^2 +4 -7y^2

I hope this helps, I am not sure if this is what you need.

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Hopefully this is better to answer. can you help? lol (';

solong [7]

Answer:

Step-by-step explanation:

1+1=2 and 2=2

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3 years ago

B. Determine the values of a and b so that f is continuous.<br><br> Please help!

wlad13 [49]

Answer:

following are the solution to this question:

Step-by-step explanation:

Please find the complete question in the attached file.

$\lim_{x\to 2}+f(x) = \lim_{x\to 2}+ (ax^2-bx+3) = 4a-2b+3\\\\ \to 4a-2b+3 = 4\\\\ \therefore \ \ 4a-2b = 1\\\\$

The one-sided limits of F(x) at x = 3 must be equivalent for f(x) to be continuous at x = 3.

$\to \lim_{x\to 3}- f(x) = \lim_{x\to 3}- (ax^2-bx+3) = 9a-3b+3\\\\ \to \lim_{x\to 3}+ f(x) = \lim_{x\to 3}+ (2x-a+b) = 6-a+b\\\\$

So,

$\to 9a-3b+3 = 6-a+b\\\\\therefore\\ \to 10a -4b = 3$

$\to 4a - 2b = 1......(a)\\\to 10a - 4b = 3.......(b)\\$

In equation a multiply the by -2 and then add in the equation b:

$\to -8a + 4b = -2\\\to 10a - 4b = 3\\ \to 2a = 1\\\\ \to a = \frac{1}{2}\\\\ \to \ 4(\frac{1}{2}) - 2b = 1\\\\ \to 2 - 2b = 1\\\\ \to -2b = -1\\\\ \to b = \frac{1}{2}$

So, the value of $a \ and \ b= \frac{1}{2}$

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ra1l [238]

Answer:

It tell the direction and the steepness of the line. Which means how much they rise or how much they fall, horizontal or vertical. It represent by the letter m

Step-by-step explanation:

m= y/x

more detail

m= y₂ - y₁ / x₂ - x₁

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Answer:

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Therefore,

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Step-by-step explanation:

Force = mass x acceleration

Therefore,

acceleration = Force / mass

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Acceleration = 2 m/s²

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Answer:

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Step-by-step explanation:

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