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3 years ago

7

Find the solution to the following system of linear equations.

1 answer:

timofeeve [1]3 years ago

8 0

For this problem you can set both equations equal to each other since they both equal y.

-35x+4=6x+4
-35x=6x
-35≠6
Therefore, we can conclude that the correct answer is C. No solution.

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A profit function is derived from the production cost and revenue function for a given item. The monthly profit function for a c

SpyIntel [72]

Check the picture below.

$\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lccclll}
P(x) = &{{ -0.05}}x^2&{{ +500}}x&{{ -100000}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)\\\\
-------------------------------\\\\
\textit{so }-\cfrac{b}{2a}\textit{ units maximize the profit, and}\\\\\\
c-\cfrac{b^2}{4a}\textit{ dollars is the maximum profit}$

5 0

2 years ago

15, Evaluate 6 choose 4.

Novosadov [1.4K]

Answer: The required result is 15.

Step-by-step explanation: We are given to evaluate the following :

"6 choose 4".

Since we are to choose 4 from 6, so we have to use the combination of 6 different things chosen 4 at a time.

We know that

the formula for the combination of n different things chosen r at a time is given by

$^nC_r=\dfrac{n!}{r!(n-r)!}.$

For the given situation, n = 6 and r = 4.

Therefore, we get

$^6C_4=\dfrac{6!}{4!(6-4)!}=\dfrac{6!}{4!2!}=\dfrac{6\times5\times4!}{4!\times2\times1}=15.$

Thus, the required result is 15.

4 0

3 years ago

Whats the best expansion for (x+5a+5b)(x+a-b)

jeka57 [31]

Answer:

x² + 6ax + 4bx + 5a² - 5b²

Step-by-step explanation:

(x+5a+5b )(x+a-b)

x² +a x -bx +5ax + 5a² -5ab + 5bx + 5ab -5b²

x² + 6ax + 4bx + 5a² - 5b²

4 0

2 years ago

PLS HELP ASAP THIS IS DUE IN 10 MINUTES

olchik [2.2K]

Answer:A number decreased by 40

Step-by-step explanation: I really don't feel like explaining this lol...

8 0

2 years ago

HELP ILL MARK YOU BRAINLIST

bekas [8.4K]

Answer:

$-\frac{3}{2}$

4 0

2 years ago

Read 2 more answers