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Nikolay [14]
4 years ago
12

(x-1)(x+20) May I know the work to this

Mathematics
2 answers:
nikitadnepr [17]4 years ago
4 0

(x-1)(x+20)=x^2+20x-x-20=x^2+19x-20

ANEK [815]4 years ago
4 0
This is how to work out the answer

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Write the equation of a line that is perpendicular to the given line and that passes through the given point. y-3=-1/5(x+2); (-2
arsen [322]

Answer:

The equation would be B) y = 5x + 17

Step-by-step explanation:

To start, you need to locate the slope of the first equation. Since the slope is the coefficient of x, we know it to be -1/5. Now, the perpendicular slope is the opposite and reciprocal of that, which makes the new slope 5.

Now that we have this, we can use the point and the slope in point-slope form to get the equation.

y - y1 = m(x - x1)

y - 7 = 5(x + 2)

y - 7 = 5x + 10

y = 5x + 17

7 0
3 years ago
Help me plz.image attached​
evablogger [386]

Answer: A. -6

Step-by-step explanation:

4 0
3 years ago
Which of these is a binomial? <br> a. 5xy <br> b. x+2y^2-7<br> c. ab<br> d.2x3-7y3
zavuch27 [327]

a. 5xy - monomial

b. x + 2y² -7 → x, 2y², -7 - trinomial

c. ab - monomial

<h3>d. 2x³ - 7y³ → 2x³, -7y³ - binomial</h3>
5 0
3 years ago
Read 2 more answers
A series RLC circuit contains an inductor with a value of 200 millihenries and a capacitor with a value of 0.1 microfarad. What
vaieri [72.5K]

Answer:

  1125.4 Hz

Step-by-step explanation:

The resonant frequency is the frequency at with the inductive reactance is equal to the capacitive reactance. It is given by the relation ...

  f=\dfrac{1}{2\pi\sqrt{LC}}

where L is in henries, and C is in farads.

__

For the given circuit values, the resonant frequency is ...

  f=\dfrac{1}{2\pi\sqrt{0.2\cdot0.1\times10^{-6}}}\approx1125.4

The resonant frequency of this circuit is about 1125.4 hertz.

3 0
2 years ago
Tom was selling his old games. He started out with 57 but sold 37 of them. He put the rest in boxes with 5 games in each. How ma
eduard

Answer:

Tom started out with 57 games but sold 37 of them.

=> Now, Tom has: 57 - 37 =20 games

He put the rest in boxes with 5 games in each.

=> The number of boxes: 20/5 = 4 box

Hope this helps!

:)

8 0
4 years ago
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