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3 years ago

What expression is equivalent to 1/3(4-5x-1)?

Mathematics

2 answers:

ANTONII [103]3 years ago

7 0

Answer:

-5/3x + 1

Step-by-step explanation:

Serhud [2]3 years ago

3 0

1/3( 4 - 5x - 1)

= (1/3)(4 + - 5x + - 1)

= (1/3)( 4) + (1/3)(- 5x) + (1/3)( - 1)

= 4/3 + - 5x/3 + - 1/3

= - 5x/3 + 1 (Decimal: - 1.666667x + 1)

Hope that helps!!!!

You might be interested in

Suppose karl uses 5 cups of tomatoes how many salqds can he make? Write a division equation and multiplication equation

DerKrebs [107]

Answer: Shouldn't the answer varies if Karl does like salad or not ?

Step-by-step explanation:

If Karl like salad he will put a lot of them !

If Karl dislike salad he will put cheese .

If Karl like mathematics and is ok with salad, we will put N+1 salad with N being the amount of tomato, so a total of 6 salads

3 0

3 years ago

Factorise the following x^4+x

Ostrovityanka [42]

Answer:

$\large\boxed{x^4+x=x(x^3+1)=x(x+1)(x^2-x+1)}$

Step-by-step explanation:

$x^4=x\cdot \underbrace{x\cdot x\cdot x}_{3}=x\cdot x^3\\\\x=x\cdot 1\\\\x^4+x=\bold{x}\cdot x^3+\bold{x}\cdot1=\bold{x}\cdot(x^3+1)\\\\\text{used the distriburtive property:}\ a(b+c)=ab+ac$

$\text{If you want complete factorise, then:}$

$x^3+1=x^3+1^3$ $\text{use}\ a^3+b^3 = (a + b)(a^2 - ab + b^2)$

$x^4+x=x(x^3+1)=x(x+1)(x^2+(x)(1)+1^2)=x(x+1)(x^2+x+1)$

7 0

3 years ago

Find the mean of the data summarized in the given frequency distribution . Compare the computed mean to the actual mean of 57.6

AlexFokin [52]

The mean of the frequency distribution is 52.6° F. The computed mean of 52.6° F is lesser than the actual mean of 57.6° F.

<h3>What is the mean of a distribution?</h3>

The mean of the distribution can be defined as the average value of the distribution, It can be expressed as the total sum of all the observed values divided by the frequency of the distribution.

From the parameters given:

Low-temperature Frequency

40 - 44 2

45 - 49 5

50 - 54 9

55 - 59 6

60 - 64 3

The first thing to do is to determine the class midpoint. The class midpoint is the sum of the class interval divided by 2.

The class midpoint of 40 - 44 is $\mathbf{\dfrac{40 + 44}{2} = 42}$

The class midpoint of 45 - 49 is $\mathbf{\dfrac{45 + 49}{2} = 47}$

The class midpoint of 50 - 54 is $\mathbf{\dfrac{50 + 54}{2} = 52}$

The class midpoint of 55 - 59 is $\mathbf{\dfrac{55 + 59}{2} = 57}$

The class midpoint of 60 - 64 is $\mathbf{\dfrac{60 + 64}{2} = 62}$

Now, the table can be represented as:

Low-temperature Frequency x

40 - 44 2 42

45 - 49 5 47

50 - 54 9 52

55 - 59 6 57

60 - 64 3 62

The mean can now be determined as follows:

$\mathbf{\bar x = \dfrac{\sum fx}{\sum f }}$

$\mathbf{\bar x = \dfrac{(2 \times 42)+ (5 \times 47) + ( 9\times 52) +(6\times 57) + (3 \times 62)}{2 + 5 + 9 + 6 + 3 }}$

$\mathbf{\bar x = \dfrac{1315}{25}}$

$\mathbf{\bar x = 52.6}$

Therefore, we can conclude that the mean of the frequency distribution is 52.6° F. The computed mean of 52.6° F. is lesser than the actual mean of 57.6° F

Learn more about the mean of frequency distribution here:

brainly.com/question/12269435

3 0

2 years ago

An experiment repeated 5 times is more reliable than an experimment repeated 20 times

shutvik [7]

Answer:

The given statement is false

Step-by-step explanation:

Given that an experiment repeated 5 times is more reliable than an experiment repeated 20 times.

The statement is false.

Any result found by way of experiment will be more reliable if more number of trials are done.

For example, consider toss of a coin. If we try for 2 times, we may get prob for head as 0 sometimes 1/2 or sometimes 1. This is because 2 is very short number of trials to decide. But when you increase to 10, you may get more reliable. SO if number of repititions increase, the more reliable the results would be.

8 0

3 years ago

11) The sum of two numbers is 25. The difference of two numbers is 3.

kupik [55]

Answer:

11) 14 and 11

Step-by-step explanation:

i can't help in number 12 , sorry !

5 0

3 years ago