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muminat
3 years ago
10

Calculate f(4) for each function below

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0
Subtitute x = 4 to the equations:

b)\ f(x)=\left(\dfrac{1}{5}\right)^x\to f(4)=\left(\dfrac{1}{5}\right)^4=\dfrac{1^4}{5^4}=\dfrac{1}{625}\\\\c)\ f(x)=3x-12\to f(4)=3\cdot4-12=12-12=0\\\\d)\ f(x)=(x-2)^3\to f(4)=(4-2)^3=2^3=8
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Tricia recorded the number of pets owned by each of her classmates. these data points represent the results of her survey. 0, 3,
SOVA2 [1]

The dot plot of the data recorded by Tricia about number of pets owned by each of her classmates looks like scattered and some points are in one line.

Given number of pets owned by each of her classmates are: 0, 3, 2, 4, 1, 0, 0, 3, 2, 1, 2, 1, 1, 3, 4, 2, 0, 0, 1, 1, 1, 0, 3.

We have to create dot plot of the data given in the question.

Firstly we have to give a code to each value which represents friend of Tricia.

A dot plot is a statistical chart which have points but they are presented in dot form. Each dot shows a value .There are two common, yet different versions of the dot chart.

After giving codes the table will look like:

Friend                       Number of pets

1                                      0

2                                      3

3                                      2

4                                      4

5                                      1

6                                      0

7                                      0

8                                      3

9                                      2

10                                    1

11                                    2

12                                    1

13                                    1

14                                    3

15                                    4

16                                    2

17                                    0

18                                    0

19                                    1

20                                    1

21                                    1

22                                    0

23                                    3

Learn more about dot plot at brainly.com/question/15853311

#SPJ4

8 0
2 years ago
Select the ZEROS of the function below. Choose two answers. (See photo)
ella [17]

x^2 +7x +10

when factored becomes

(x+2) (x+5)

 the zeros are x +2 = 0, x = -2

x +5 = 0 x = -5

zeros are -2 and -5


4 0
3 years ago
Johnny has 304 apples, his sister ate 301 of them. How many apples does he have? After His sister ate the apples a magic fairy m
sashaice [31]

Answer:

1. John still has 3 Apples

2. John now has 845679,63 Apples (I'm not sure if you've written the number of the multiplying fairy right...).

3. If the * is multiplying:

John now has 25937228,2 Apples.

Step-by-step explanation:

Just use the calculator.

7 0
3 years ago
A few weeks into the deadly SARS (Severe Acute Respiratory Syndrome) epidemic in 2003, the number of cases was increasing by abo
DaniilM [7]

Answer: The required exponential model is 1804(1.04)^t

Step-by-step explanation:

Since we have given that

Initial cases = 1804

Rate of growth = 4%

Since it is increasing exponentially,

So, it becomes,

A=ab^t

Here, a = 1804

b = 1+r=1+0.04=1.04

So, it becomes,

A=1804(1.04)^t

Hence, the required exponential model is 1804(1.04)^t

6 0
3 years ago
Solve by taking the square root I need help understanding steps this is hard for me. ​
Shalnov [3]

Answer:

x= -2 \pm \sqrt{13}

Step-by-step explanation:

Given: 3x^{2} -12x+27= 0

This is a quadratic equation.

3x^{2} -12x+27= 0

Taking common 3 from the equation given

⇒ 3(x^{2} -4x+9)=0

dividing both side by 3

⇒ x^{2} -4x+9=0

By using different factor, we can observe this trinomial can not be factored.

∴ solving it by completing the square.

⇒ x^{2} -4x+9=0

adding 9 on both side

⇒ x^{2} -4x= 9

To get a perfect square number as coeffecient of x is 4, lets add both side by 4.

⇒x^{2} -4x+4= 13

we know, (x+2)^{2} = x^{2} +2\times x\times 2+2^{2}

∴ (x+2)^{2} =13

Taking Square root on both side, remember; √a²= a

⇒ (x+2)= \sqrt{13}

opening parenthesis

⇒ x+2= \sqrt{13}

subtracting both side by 2

∴ x= -2 \pm \sqrt{13}

7 0
3 years ago
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