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3 years ago

Find the outlier in the following set of data 6.1,0.6,4.9,6.6,5.9,3.3,5.1,5.4

Mathematics

1 answer:

eimsori [14]3 years ago

7 0

.6 because it is very low compared to the other numbers

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A town has a population of 2000 and grows at 4% every year. What will be the population after 15 years, to the nearest whole num

Gwar [14]

Answer:

3200

Step-by-step explanation:

growth = current population + rate * time

= 2000 * .04 * 15

= 1200

original population + growth = total

2000 + 1200 = 3200

8 0

2 years ago

Simplify surds √50+√√72-√√128

34kurt

Answer:

3 $\sqrt{2}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplify the given radicals

$\sqrt{50}$

= $\sqrt{25(2)}$

= $\sqrt{25}$ × $\sqrt{2}$

= 5 $\sqrt{2}$

------------------------

$\sqrt{72}$

= $\sqrt{36(2)}$

= $\sqrt{36}$ × $\sqrt{2}$

= 6 $\sqrt{2}$

-----------------------

$\sqrt{128}$

= $\sqrt{64(2)}$

= $\sqrt{64}$ × $\sqrt{2}$

= 8 $\sqrt{2}$

Then

$\sqrt{50}$ + $\sqrt{72}$ - $\sqrt{128}$

= 5 $\sqrt{2}$ + 6 $\sqrt{2}$ - 8 $\sqrt{2}$

= 11 $\sqrt{2}$ - 8 $\sqrt{2}$

= 3 $\sqrt{2}$

3 0

2 years ago

__x4=12<br> 12÷4 =__ <br> The Number in the blanks represents :

Rama09 [41]

The number in the blanks is 3

3 0

3 years ago

3) Valerie works at a local amusement park. She earns $9.80 per hour. She 20 points

NemiM [27]

<h3>Answer: Choice A</h3><h3>9.80h+10 = 88.40</h3>

===========================================================

Work Shown:

h = number of hours worked.
9.80h = amount of money earned after working h number of hours (ignoring the meal bonus).
9.80h+10 = total amount of money earned after adding on the meal bonus.
9.80h+10 = 88.40 is the equation we use since the total 9.80h+10 is the same as the total she earned 88.40 dollars.

--------------------

Extra info (optional section)

If you want to solve for h, then you could follow these steps.

9.80h+10 = 88.40

9.80h = 88.40-10 ... subtract 10 from both sides

9.80h = 78.40

h = 78.40/9.80 .... divide both sides by 9.80

h = 8

Valerie worked 8 hours on Friday.

As a check,

9.80h + 10 = 88.40

9.80*8 + 10 = 88.40

78.40 + 10 = 88.40

88.40 = 88.40

The answer is confirmed.

3 0

2 years ago

Solve the equation. 4(x − 7) − 128 = 9x − 5(x + 6)

vichka [17]

The equation 4(x − 7) − 128 = 9x − 5(x + 6) has no solution

<h3><u>Solution:</u></h3>

Given that 4(x − 7) − 128 = 9x − 5(x + 6)

We have to find the solution for this equation

4(x − 7) − 128 = 9x − 5(x + 6)

Let us use BODMAS rule to perform the sequence of operations

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right.

So let us solve for brackets first

4x - 28 - 128 = 9x - 5x - 30

Now let us perform subtraction

4x - 156 = 4x - 30

Now move the terms from R.H.S to L.H.S

4x - 4x = -30 + 156

$0 \neq 126$

Since there is no value of x that will ever make this a true statement, the solution to the equation above is “no solution”

So this equation has no solution

4 0

3 years ago