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2 years ago

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As a Given the function f(x) = - 3x + 2 then what is - 2f * (x) as a simplified polynomial ?

1 answer:

Lady bird [3.3K]2 years ago

7 0

Answer: 6x - 4

Step-by-step explanation: -2*f(x) = -2 * (-3x+2) = (-2*-3x) + (-2*2) = 6x + (-4) = 6x - 4

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21. Randy owns a computer store. In 1990, he sold 150 monitors. In 2000, he sold 900

lutik1710 [3]

Answer:

$y=75x+150$

Step-by-step explanation:

Let $y$ represent the number of monitors sold.

Given:

$x$ is the number of years since 1990.

So, for the year 1990, $x=0$ .

For the year 2000, 10 years passed. So, $x=10$ .

Now, monitors sold in 1990 are 150. So, at $x=0,y=150$

Monitors sold in 2000 are 900. So, at $x=10,y=900$

Thus, the two points are $(0,150)$ and $(10,900)$ .

The slope of a line with points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

Slope, $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

For the points $(0,150)$ and $(10,900)$ , the slope is given as:

Slope, $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\ m=\frac{900-150}{10-0}\\ m=75$

Now, the y-intercept is the point where $x=0$ . So, the point $(0,150)$ has $x$ value as 0.

So, the y-intercept is 150.

Equation of a line in slope-intercept form is given as:

$y=mx+b$

Where, $m$ is the slope and $b$ is the y intercept.

Here, $m=75$ and $b=150$ .

Therefore, the equation that represents the above data is given as:

$y=75x+150$

7 0

3 years ago

Please help WOrth 10 points

rjkz [21]

Answer:

52 cubic units

Step-by-step explanation:

1. Divide the shape into 2 parts:

The first one: a 2 by 4 by 6 rectangular prism.

The second one: a 1 by 4 by 1 rectangular prism.

2. Find the volumes of the prisms.

2*4*6=48

1*4*1=4

3. Add the two volumes

48+4=52 cubic units (or units^3)

6 0

3 years ago

Please help<br><br> Right triangles and trigonometry quiz two on Khan Academy

Sedbober [7]

Answer:

AC = 2.44

Step-by-step explanation:

Reference angle = 26°

Opposite side = AC = ?

Adjacent side = BC = 5

Applying TOA, we have:

Tan 26 = opp/adj

Tan 26 = AC/5

multiply both sides by 5

Tan 26 × 5 = AC

AC = 2.44 (nearest hundredth)

8 0

2 years ago

How to find x and also giving reason . Thanku

Colt1911 [192]

1a. x = 70
Alternate Interior Angles

1b. x = 120
Alternate Interior Angles

1c. x = 110
Corresponding Angles

2a. x = 100
Alternate Interior Angles
y = 80
Supplementary Angles (with x)

2b. x = 75
Corresponding Angles
y = 105
Supplementary Angles (with x)

2c. x = 70
Same-Side Interior Angles
y = 110
Supplementary Angles (with x)

Try the rest on your own!

7 0

3 years ago

Jacob's favorite movie is 1 5/6 hours long. He says he has watch the movie 5 and a half times. If that is true. How many hours h

34kurt

$1\frac{5}{6}$ = $\frac{11}{6}$ , and when you multiply it by 5 it turns into $\frac{55}{6}$ , which is $9\frac{1}{6}$

So in conclusion he watched 9 & 10 minutes watching the movie

3 0

3 years ago