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3 years ago

-1. A coffee shop spends $400 for an order of 20 cases of paper cups. How much is

Mathematics

1 answer:

tamaranim1 [39]3 years ago

7 0

Answer:

$20

Step-by-step explanation:

400/20=20

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Subtract the polynomials then simplify: 5x^5+4x^2-2x^6+6x^4 and 10x^2+10x^3+8x^6-9x^4

Jet001 [13]

Answer:

$\large\boxed{-10x^6+5x^5+15x^4-10x^3-6x^2}$

Step-by-step explanation:

$(5x^5+4x^2-2x^6+6x^4)-(10x^2+10x^3+8x^6-9x^4)\\\\=5x^5+4x^2-2x^6+6x^4-10x^2-10x^3-8x^6-(-9x^4)\\\\=5x^5+4x^2-2x^6+6x^4-10x^2-10x^3-8x^6+9x^4\\\\\text{combine like terms}\\\\=(-2x^6-8x^6)+5x^5+(6x^4+9x^4)-10x^3+(4x^2-10x^2)\\\\=-10x^6+5x^5+15x^4-10x^3-6x^2$

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3 years ago

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If 6x - 3 = 12 , what is the value of 12x + 8 ?

Finger [1]

Answer:

You would first add 3 to 12 - 6x =15

x =2.5

12(2.5) = 30

Final value =38

Step-by-step explanation:

8 0

3 years ago

WHOEVER GETS RIGHT GETS BRAINLIEST!!

ozzi

Answer:

Answer B: min. value at -6

Step-by-step explanation:

Complete the square of f(x) = x^2 - 2x - 5.

Note: Please use " ^ " to denote exponentiation, as shown.

Start with f(x) = x^2 - 2x - 5.

Identify the coefficient of the x term: it is 2.

Take half of that and square your result: (1/2)(2) = 1, and then 1^2 = 1.

Add and subtract this 1 between the 2x term and the constant term:

f(x) = x^2 - 2x + 1 - 1 - 5

Rewrite x^2 - 2x + 1 as a perfect square:

f(x) = (x - 1)^2 - 1 - 5, or f(x) = (x - 1)^2 - 6

Compare this to the standard form

f(x) = (x - h)^2 + k

We see that h = 1 and k = -6.

The vertex is located at (h, k); here, it's located at (1, -6).

Thus, the minimum value of this function is at the vertex (1, -6).

This agrees with Answer B: min. value at -6.

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3 years ago

The measure of angle θ is 7 pi/6 . The measure of its reference angle is... °?, and sin θ is ...?

hjlf

Alright, let get started.

We have given the angle Ф as 7π/6.

And we are asked to find its reference angle (in dgrees)

So, we will first change 7π/6 from radian to degrees by multiplying 180/π

Ф = 7π/6 * 180/π

Ф = 7 * 180/6 = 210 degrees

Now, reference angle is the angle between X axis and the terminal side of given angle.

Please refer to the diagram attached.

The terminal side of angle 210 is lying in 3rd quadrant.

The angle between X axis and its terminal side is 210 - 180 = 30 degrees

Hence refernce agle of 210 degree or 7π/6 is 30 degrees. : Answer

We are also asked to find sin Ф

We could find it by using unit circle. sin 210 = - 1/2 Answer

Hope it will help :)

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3 years ago

You are going to join a gym and there are two options close to your workplace. gym a charges you a flat rate of $39.95 per month

mars1129 [50]

We make sample calculations per month, assuming that you visit the gym x times per month.

(1) $39.95 per month
(2) total = $14.95 + $2.95x

If we have the value of x, it is much easier for us to determine the answer by just substituting the value of x and solve. Whichever gives the lower cost will be our answer.

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3 years ago

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