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Akimi4 [234]
3 years ago
15

Select the correct answer. Which expression is equivalent to the given expression? ​

Mathematics
1 answer:
Afina-wow [57]3 years ago
8 0

Answer:

B

Step-by-step explanation:

2x times x = 2x²

2x times -6 = -12x

1 times x = x

1 times -6 = -6

= 2x² - 12x + x - 6

= 2x² - 11x -6

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Find the slope of the line
umka2103 [35]

Answer:

slope: -2

Step-by-step explanation:

3 0
3 years ago
A salesperson gets a commission of $1400 for the first $10,000 of sales, and then $700 for each additional $10,000 or partial of
Alenkasestr [34]

Answer:

s(65,000)= \$ 4,900

Step-by-step explanation:

s(x) represents the commission on x dollars of sales.

For the first $10,000 of sales, the commission is $1400.

For each additional $10,000, the commission is $700.

The total value is $65,000.

The first $10,000 implies a commission of $1400.

The rest is $55,000, which represents 5 times $10,000 and $5,000. The additional commission is 5 times $700, which is $3500.

Therefore, the total commission for the sale of $65,000 is $4,900.

s(65,000)= \$ 4,900

4 0
3 years ago
The National Coffee Association reported that of U.S. adults drink coffee daily. A random sample of U.S. adults is selected. Rou
kirill115 [55]

The question is incomplete. The complete question is :

The National Coffee Association reported that 62% of U.S. adults drink coffee daily. A random sample of 225 U.S. adults is selected. Round your answers to at least four decimal places as needed.

Required:

a. Find the mean μ.

b. Find the standard deviation σ.

c. The standard deviation σ.

Solution :

a). Percentage of the US adults who drinks coffee daily = 62%

Therefore, the mean, μ = 0.62

b). We know, p = μ = 0.62

And n = 225

Therefore, the standard deviation is given by :

$\sigma=\sqrt{\frac{p\times (1-p)}{n}}$

 $=\sqrt{\frac{0.62\times (1-0.62)}{225}}$

 $=\sqrt{\frac{0.62\times 0.38}{225}}$

 $=0.0324$

c). Standard deviation, σ = 0.0324

3 0
3 years ago
One line is y = 3x + 2 and the other line goes through the point (0, -5). Write equation of line.
Lady_Fox [76]

Answer:

y=3x-4 is the slope-intercept form of the equation of a line.  It is in the form y=mx+b.

    m is the slope (often called "rise over run") and b is the y-intercept (the point where x=0).

The y-intercept is the point (0,-4).

We need one other point.  This is where finding easy calculations pays off.  How about where x=2, y=(3)(2)-4 = 2.

That's the point (2,2).

Step-by-step explanation:

tell me if you get it

3 0
3 years ago
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3. Andrew wants to buy exercise equipment that costs $140 and the
sertanlavr [38]

Answer:

23

Step-by-step explanation:

just trust me

5 0
3 years ago
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