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Marta_Voda [28]
3 years ago
15

State a function rule for the number of dots in each figure

Mathematics
1 answer:
damaskus [11]3 years ago
4 0

Answer:

g(x)=x^{2}

Step-by-step explanation:

Since we know that a function gives exactly one output for a given input.

We can see that number of points in our diagram are 1,4 and 9.

These numbers represent a quadratic function as:

1^{2} =1

2^{2} =4

3^{2} =9

Therefore, we can represent these points in a function as g(x)=x^{2}, where x is number of points.


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balandron [24]

Answer:

b

Step-by-step explanation:

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2 years ago
How many solutions does the system have? x+2y=2 2x+4y=−8 ​
Nikitich [7]

Answer:

Step-by-step explanation:

x + 2y = 2

2x + 4y = -8

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3 0
3 years ago
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 15 years, and standard deviation of 3
Gala2k [10]

Answer:

The probability that their mean life will be longer than 13 years = .9943 or 99.43%

Step-by-step explanation:

Given -

Mean (\nu  ) = 15 years

Standard deviation (\sigma  ) = 3.7 years

Sample size ( n ) =22

Let \overline{X} be the mean life of manufacturing items

the probability that their mean life will be longer than 13 years =

P(\overline{X}>  13) =  P(\frac{\overline{X} - \nu }{\frac{\sigma }{\sqrt{n}}}>  \frac{13 - 15 }{\frac{3.7}{\sqrt{22}}})       (Z =\frac{\overline{X} - \nu }{\frac{\sigma }{\sqrt{n}}})

                    =  P(Z> -2.53)

                    = 1 - P(Z <  -2.53)       Using Z table

                    = 1 - .0057

                    =  .9943

7 0
3 years ago
Help me please I need help
Tamiku [17]

Answer:

AGE should be 35

Step-by-step explanation:

same as DGB

8 0
2 years ago
5x -3 &gt; 15x-11/2 find the value of x​
Igoryamba

Answer:

0.25

Step-by-step explanation:

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5x-15x > 3-11/2

-10x > -2.5

x > -2.5/-10

x > 0.25

4 0
3 years ago
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