Use the diagram to the right to complete the statement. If m

Mathematics

1 answer:

satela [25.4K]3 years ago

8 0

What is the question ? I don’t get it???

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Factor 3x2 - 15x - 42.

11Alexandr11 [23.1K]

3 x^{2} - 15x - 42
(x-7)(x+2)
x-7=0 x+2=0
x=7,-2

8 0

3 years ago

Please simplify 10{N + 3).

lana [24]

Answer:

Step-by-step explanation:

I must assume that you meant 10(N + 3). Let's not mix { with ).

10(N + 3) is as simple as this expression gets. You could, however, re-write it as 10N + 30.

6 0

3 years ago

Give f(x) = 5x + 7, what is the value of f(12)?

icang [17]

Answer:

The 12th Term is 67.

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3 years ago

6 wrestlers compete in a competition. if each wrestler wrestles one match with each other wrestler, what are the total numbers o

PolarNik [594]

The total number of wrestlers are 6 and each have to wrestle each other wrestler only once.

It means, the first wrestler have 5 opponent, second have 4 opponents , third have three oponenets , fourth have two opponents and the fifth have only one opponent.

So the total number of matches = 5+4+3+2+1 =15

3 0

3 years ago

Read 2 more answers

Why the derivative of (x^2/a^2) = (2x/a^2)?

Neko [114]

I assume you're referring to a function,

$f(x) = \dfrac{x^2}{a^2}$

where <em>a</em> is some unknown constant. By definition of the derivative,

$\displaystyle f'(x) = \lim_{h\to0}{f(x+h)-f(x)}h$

Then

$\displaystyle f'(x) = \lim_{h\to0}{\frac{(x+h)^2}{a^2}-\frac{x^2}{a^2}}h \\\\ f'(x) = \frac1{a^2} \lim_{h\to0}{(x+h)^2-x^2}h \\\\ f'(x) = \frac1{a^2} \lim_{h\to0}{(x^2+2xh+h^2)-x^2}h \\\\ f'(x) = \frac1{a^2} \lim_{h\to0}{2xh+h^2}h \\\\ f'(x) = \frac1{a^2} \lim_{h\to0}(2x+h) = \boxed{\frac{2x}{a^2}}$

8 0

2 years ago