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Zanzabum
3 years ago
12

Is -34 a rational number, an integer, and a whole number.

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
4 0

Rational number

Please mark brainliest

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Dunkin Donuts makes its doughnuts for $2.00 each. DD wnats a 50% markup on the
vesna_86 [32]

Answer:
Cost of each donut should be $3.00

Step-by-step explanation:

please tell me if I am wrong. 2.00 x 0.5 is 1. 2 + 1 is 3.

8 0
2 years ago
Read 2 more answers
Add the following polynomials, then place the answer in the proper location on the grid.
aivan3 [116]

Answer:

x^3 - 6x + 2

Step-by-step explanation:

The given polynomials can be added together by adding like terms together as shown below:

=> Add together, the coefficient of all terms that have the power of 3.

(2x^3) + (x^3) + (-3x^3)

2x^3 + x^3 - 3x^3

3x^3 - 3x^3

x^3

=> (-4x^2) + (6x^2) + (2x^2)

-4x^2 + 8x^2

4x^2

=> (6x) + (-8x) + (-4x)

6x - 8x - 4x

-6x

=> (-3) + (12) +(-7)

-3 + 12 - 7

2

The answer = x^3 - 6x + 2

5 0
2 years ago
2. Compare the function ƒ(x) = –x^2 + 4x – 5 and the function g(x), whose graph is shown. Which function has a greater absolute
sergij07 [2.7K]

Answer:

g(x)

Step-by-step explanation:

The vertex of g(x) as shwon in the graph is located in the point wich coordinates are (3.5,6.25) approximatively

We need to khow the coordinates of f(x) vertex

  • Here is a way without derivating:

f(x) = -x² + 4x -5

let a be the leading factor, b the factor of x and c the constant:

  • a= -1
  • b= 4
  • c= -5

The coordinates of a vertex are: (\frac{-b}{2a} , f(\frac{-b}{2a}) )

-b/2a = -4/ (-1*2) = 4/2 = 2

f(2)= -2²+4*2-4 = -4+4-4 = -4

obviosly f(x) has a minimum wich less than g(x)'s maximum

3 0
3 years ago
Consider that 620(1.082)x models the average annual health care costs per person, in dollars, as a function of the number of yea
max2010maxim [7]

Answer:

I guess that you want to calculate the difference between the annual healt care costs in 1950 and today.

The equation is:

C(x) = $620*(1.082)^x

in 1950, we have x = 0 (because is the initial year)

then the cost is:

C(0) = $620*1 = $620.

Now, today, in 2020, we have:

x = 2020 - 1950 = 70

then we have:

C(70) = $620*(1.082)^70 = $154,276.7

So, according to this equation, te difference is:

$154,276.7 -  $620 = $153,656.6

6 0
3 years ago
The length of the longer leg of a right triangle is 6cm more than twice the length of the shorter leg. The length of the hypoten
pishuonlain [190]
Same as the one before a few way back.... so...check the picture below, then we use the pythagorean theorem

\bf (2s+9)^2=s^2+(2s+6)^2
\\\\\\
4s^2+36s+81=s^2+4s^2+24s+36\implies 36s+81=s^2+24s+36
\\\\\\
0=s^2-12s-45\implies 0=(s-15)(s+3)\implies 
\begin{cases}
0=s-15\\
\boxed{15=s}\\
-----\\
0=s+3\\
-3=s
\end{cases}

6 0
3 years ago
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