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3 years ago

9

10x3 + 3x2 – 20x – 6

1 answer:

Helga [31]3 years ago

4 0

-2
Because -2(10x+3) is (-20x-6) when you distribute

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Svetlanka [38]

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3 years ago

You want to buy a CD player that costs $100. You get paid $6 per hour

photoshop1234 [79]

Answer:

6x=100+80

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3 years ago

Can I get some help on these please

Gelneren [198K]

Answer:

1. $\frac{2}{5}$

2. $\frac{5}{8}$

3. Proper Fraction

4. Mixed Fraction

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3 years ago

Read 2 more answers

Andrew and Christopher are creating patterns. Andrew uses the rule “multiply by 2” and starts at 3. Christopher uses the rule “a

weeeeeb [17]

Answer:

the answer is b

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3 years ago

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The diagram shows two straight lines. Both lines intersect at point A. У y = 4x A х A y = -2 Identify the coordinates of point A

Semmy [17]

Answer:

Point $A$ is at $(-1/2,\, -2)$ .

Step-by-step explanation:

The intersection $(x,\, y)$ of two lines in a plane could be found by solving a linear system of two unknowns ( $x$ and $y$ ) and two equations (one for each line.)

In this question, the equation of the two lines are $y = 4\, x$ and $y = -2$ , respectively. The corresponding system of equations would be:

$\left\lbrace \begin{aligned} & y = 4\, x \\ & y = -2\end{aligned} \right.$ .

Solve this system for $x$ and $y$ :

$y = (-2)$ .
Substitute $y = (-2)$ into the first equation and solve for $x\!$ : $x = (-1/2)$ .

Therefore:

$\left\lbrace \begin{aligned} & x = -\frac{1}{2} \\ & y = -2\end{aligned} \right.$ .

Thus, the coordinates of this intersection $(x,\, y)$ would be $(-1/2,\, -2)$ .

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2 years ago