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2 years ago

Consider the following expression -2m(m+n-4)+5(-2m+2n)+n(m+4n-5) which of the following is an equivalent expression

Mathematics

1 answer:

velikii [3]2 years ago

3 0

The answer is:

-2m²+4n²-mn-2m+5n

aka letter c in algebra nation

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Z = the sales tax percentage for a randomly selected amazon purchase, where n = the total number of possible sales tax percentag

nikitadnepr [17]

Answer:

$[0,Z_n]$

Step-by-step explanation:

Z = the sales tax percentage for a randomly selected amazon purchase, where n = the total number of possible sales tax percentages for online purchases

Since Amazon is an online purchase, The set of possible values for the variable is a positive real number. It is a positive real number that must be within $Z_n$ . It cannot exceed the tax percentage for online purchases that can be found in Amazon. $Z_n$ is a set of online purchases that can be found on Amazon, therefore the set of possible values for the variable is $[0,Z_n]$

7 0

2 years ago

Toni and Nicky each earn a weekly salary

Reil [10]

Answer:

10,000

Step-by-step explanation:

800 + .07x = 600 + .09x

200 = .02x

10000 = x

4 0

2 years ago

The 3rd degree Taylor polynomial for cos(x) centered at a = π 2 is given by, cos(x) = − (x − π/2) + 1/6 (x − π/2)3 + R3(x). Usin

Otrada [13]

Answer:

The cosine of 86º is approximately 0.06976.

Step-by-step explanation:

The third degree Taylor polynomial for the cosine function centered at $a = \frac{\pi}{2}$ is:

$\cos x \approx -\left(x-\frac{\pi}{2} \right)+\frac{1}{6}\cdot \left(x-\frac{\pi}{2} \right)^{3}$

The value of 86º in radians is:

$86^{\circ} = \frac{86^{\circ}}{180^{\circ}}\times \pi$

$86^{\circ} = \frac{43}{90}\pi\,rad$

Then, the cosine of 86º is:

$\cos 86^{\circ} \approx -\left(\frac{43}{90}\pi-\frac{\pi}{2}\right)+\frac{1}{6}\cdot \left(\frac{43}{90}\pi-\frac{\pi}{2}\right)^{3}$

$\cos 86^{\circ} \approx 0.06976$

The cosine of 86º is approximately 0.06976.

8 0

2 years ago

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is

Arada [10]

Answer:

The test contains 10 three-point questions and 14 five-point questions.

Step-by-step explanation:

The value of x is the number of 3-point questions, and the value of y is the number of 5-point questions, as the problem statement tells you. So, the solution (x, y) = (10, 14) indicates ...

"The test contains 10 three-point questions and 14 five-point questions."

_____

You can try the offered answers to see which might apply. The last choice has too many questions. The first and third choices don't add up to 100 points.

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2 years ago

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A rare first-edition book is currently priced at $200. After one year, the price of the book is anticipated to be 1.15 times the

Ber [7]

Answer is Graph Y, NOT Graph W

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2 years ago

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