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9966 [12]
3 years ago
13

If (-3, y) lies on the graph of y = (1/2)^x, then y =

Mathematics
1 answer:
labwork [276]3 years ago
6 0

\text{If (-3, y) lies on the graph of}\ \ y = \left(\dfrac{1}{2}\right)^x, \text{then substitute x = -3}\\\text{ to the equation and calculate y}:\\\\y=\left(\dfrac{1}{2}\right)^{-3}=(2)^3=8\\\\Answer:\ \boxed{y=8}\\\\Used:\ a^{-n}=\dfrac{1}{a^n}

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9k - 6k + 7k - 8 simplify the expression
Kamila [148]

I will gladly simplify it.


9k - 6k + 7k - 8

9k - 6k = 3 k

3k + 7k - 8

3k + 7k= 10k

10k - 8 = 2k

So the simplified form of 9k - 6k + 7k - 8 is 2k


~*"AUBA14"*~


3 0
3 years ago
Evaluate each function following the specification.
telo118 [61]

Answer:

#3 a. g(-1) = 2, g(0) = 3, and g(1) = 2

b. No restrictions for all real numbers

\#4 \  a. \ h(-1) = \dfrac{1}{3}, \  h(0) =0, \  h(2) =  \infty

b. Yes, <em>x ≠ 2</em>

Step-by-step explanation:

#3 The function is given as g(x) = -x² + 3

a. From the given function, by plugging in the value of 'x' in the bracket, we have;

g(-1) = -(-1)² + 3 = -1 + 3 = 2

g(-1) = 2

g(0) = -0² + 3 = 3

g(0) = 3

g(1) = -1² + 3 = -1 + 3 = 2

g(1) = 2

g(-1) = 2, g(0) = 3, and g(1) = 2

b. The given function g(x) = -x² + 3 for finding the value of <em>g</em> can take any value of <em>x</em> which is a real number

Therefore, therefore, there are no restrictions

#4 a. The given function is given as follows;

h(x) = \dfrac{x}{x - 2}

By substitution, we get;

h(-1) = \dfrac{-1}{(-1) - 2} = \dfrac{-1}{-3} = \dfrac{1}{3}

\therefore h(-1) = \dfrac{1}{3}

h(0) = \dfrac{0}{0 - 2} = \dfrac{0}{-2} =0

\therefore h(0) =0

h(2) = \dfrac{2}{2 - 2} = \dfrac{2}{0} = \infty

\therefore h(2) =  \infty

h(-1) = \dfrac{1}{3}, \  h(0) =0, \  h(2) =  \infty

b. From the values of the function, we have that h(x) is not defined at x = 2

Therefore, there is a restriction for <em>x</em> in the function, which is <em>x ≠ 2</em>

3 0
3 years ago
What is the solution for 3x – 2y = –9
Natasha_Volkova [10]

Answer: x=3-2y/3

Step-by-step explanation:

You just have to try to isolate one variable

8 0
3 years ago
Read 2 more answers
A, B and C are partners sharing profits in the ratio 3:2:1. During the year A withdraws Rs. 3000 at the start of each month, B w
andre [41]

Answer:

what is the question

Step-by-step explanation:

i cant see any question marks

5 0
3 years ago
Can someone please help the question is ; find 75% of 192
natima [27]

Answer:

75% of 192 is 144

Step-by-step explanation:

The answer is 144 because 192 multiplied by 75% is 144.

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3 years ago
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