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Y_Kistochka [10]
4 years ago
9

Graphing Exponential Function in Exercise ,sketch the graph of the function.See example 3 and 4.

Mathematics
1 answer:
Vlad [161]4 years ago
5 0

Answer:

The attached image shows the graph for the given function.

Step-by-step explanation:

We are given the following function in the question:

y(x) = 2^{x-1}

We have to graph the given function.

Properties of the given function are:

  • It is an exponential function of the form y(x) = a^{x + b}
  • Here, a = 2, b = -1
  • The y-intercept of the given function is (0,0.5)
  • There is no x-intercept.
  • The domain of the given function is all real numbers.
  • The range of given function is (0,\infty)

The attached image shows the graph for the given function.

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Maria and farida has 250 beads altogether. After Maria used 18 beads to make a bracket and farida gave away 2/5 of her beads, th
Elenna [48]

Answer:

Maria had 105 beads at first.

Step-by-step explanation:

Let number of beads Maria have be x.

Let number of beads Farida have be y.

Given:

Maria and Farida has 250 beads altogether.

Hence equation is represented as;

x+y =250 \ \ \ \ equation \ 1

Also Given:

Maria used 18 beads to make a bracket.

hence bead left with maria = x-18

farida gave away 2/5 of her beads.

Hence beads left with Farida = y - \frac{2}{5}y= \frac{5y}{5}-\frac{2y}{5}=\frac{5y-2y}{5}=\frac{3y}{5}

Also they have the same number of beads left.

bead left with maria = beads left with Farida

x-18= \frac{3y}{5}\\5(x-18)=3y\\5x-90=3y\\5x-3y =90 \ \ \ \ equation \ 2

Now Multiplying equation 1 with 3 we get;

3(x+y)=3\times250 = 3x+3y = 750 \ \ \ \ equation \ 3

Now adding equation 2 by equation 3 we get;

(5x-3y)+(3x+3y) = 750+90\\5x-3y+3x+3y = 840\\8x=840\\x=\frac{840}{8}=105

we know the value of x = 105

hence substituting value of x in equation 1 we get;

105+y=250\\y=250-105 =145

Maria had 105 beads and Farida had 145 beads at first.

Final Answer: Maria had 105 beads at first.

7 0
3 years ago
Write down a mixed number between 3 3/11 and 3 2/5
TiliK225 [7]

Answer:

3 7/23

Step-by-step explanation:

Hope this helps.

8 0
3 years ago
What is the product of −4 1/2 and 2 1/2?
xz_007 [3.2K]
<h3>Solution:</h3>

- 4 \frac{1}{2}  \times 2 \frac{1}{2}  \\  =  \frac{ - 9}{2}  \times  \frac{5}{2}  \\  =  \frac{ - 45}{4}  \\  =  - 11 \frac{1}{4}

<h3>Hope it helps</h3>

ray4918 here to help

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3 years ago
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MrRissso [65]

Answer:

(4,0),(0,-12)

Step-by-step explanation:

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