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3 years ago

8.5, 8.409, 8.47, 8.357, 8.41, 8.458 LESSER GREATER ASAP PLS

Mathematics

2 answers:

Komok [63]3 years ago

8 0

Answer:

I think it's 8.357,8.409,8.458,8.41,8.47,8.5

Step-by-step explanation:

;)

Goryan [66]3 years ago

8 0

It would be 8.357, 8.409, 8.51, 8.458, 8.47, 8.5

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Given: f(x) = x - 7 and h(x) = 2x + 3<br><br> Write the rule for h(f(x)).

OLga [1]

So basically you just want to replace all the x's in the h(x) equation with the f(x) equation.

h(x-7) = 2(x-7) + 3
h(x) = 2x -14 + 3
h(x) = 2x - 11

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4 years ago

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What is the area of the triangle in this coordinate

EastWind [94]

Answer:

<h2>A = 16.5 square units</h2>

Step-by-step explanation:

It's the right triangle.

The formula of an area of a right triangle:

$A=\dfrac{(leg)(leg)}{2}$

Look at the picture.

We have

$leg=3,\ leg=11$

Substitute:

$A=\dfrac{(3)(11)}{2}=\dfrac{33}{2}=16.5$

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3 years ago

Sample annual salaries (in thousands of dollars) for employees at a company are listed. (a) Find the sample mean and sample s

Helen [10]

Answer:

Follows are the solution to the given points:

Step-by-step explanation:

The value is attached in the image file please find it.

In point a:

First, we calculate the find the mean,

Formula:

$\to Mean (\bar{x}) = \frac{( \sum x)}{n}$

$=\frac{540}{13}\\\\ = 41.54$

To calculate the standard deviation, subtract the mean value from all observations then square its value:

$SD = \sqrt{\frac{\sum(x-\bar{x})^2}{n-1}} \\$ $= \sqrt{ \frac{339.2308}{13-1}}$

$= \sqrt{ \frac{339.2308}{12}}\\\\= \sqrt{28.269}\\\\=5.31$

please find attached file

In point b:

New $x_i = 1 x_i + 0.05 x_i = 1.05 x_i$

Calculate new mean:

$\to \bar{x} = \frac{\sum x}{n} \\$

$=\frac{567}{13} \\\\= 43.62$

calculating the standard deviation:

$SD = \sqrt{\frac{\sum(x-\bar{x})^2}{n-1}} \\$ $= \sqrt{ \frac{374.0022}{13-1}}$

$= \sqrt{ \frac{374.0022}{12}}\\\\= \sqrt{31.16}\\\\=5.58$

please find attached file

In point C:

Calculate new mean:

$\to \bar{x} = \frac{\sum x}{n} \\$

$=\frac{47.25}{13} \\\\= 3.46$

calculating the standard deviation:

$SD = \sqrt{\frac{\sum(x-\bar{x})^2}{n-1}} \\$ $= \sqrt{ \frac{2.5975}{13-1}}$

$= \sqrt{ \frac{2.5975}{12}}\\\\= \sqrt{0.216}\\\\=0.46$

please find attached file

In point d:

for b,

New $\bar{x}= 1.05 \bar{x}= 1.05(41.54) =43.62$

New $s= 1.05s= 1.05(5.31)=5.57$

for c,

New $\bar{x}= \frac{ \bar{x}}{12}= \frac{41.54}{12} = 3.46$

New $s = \frac{s}{ 12} = \frac{5.31}{12}= 0.44$

4 0

4 years ago

There is a bag containing 2 red, 3 green, and 5 white marbles. If you randomly pick 1 marble from the bag, what is the probabili

Naddika [18.5K]

Answer:

3/10

Step-by-step explanation:

Since you are only choosing a marble in the bag and there are three green marbles to choose from out of the 10 marbles combined, you will have a 30% chance of getting a green marble in which you have 3/10 as your probability.

6 0

4 years ago

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Does anyone has Algebra ll and if so can you please help me with this problem 5i/-2-6i And also I can't pay you but I hope God c

asambeis [7]

Answer:

$s = \frac{5i}{-2-6i} = -\frac{30}{40}-\frac{10}{40}i$

Step-by-step explanation:

We have the following complex number $s = \frac{5i}{-2-6i}$ , we proceed to simplify the expression as follows:

1) $\frac{5i}{-2-6i}$ Given.

2) $(5i)\cdot (-2-6i)^{-1}$ Definition of division.

3) $[(5i)\cdot (-2-6i)^{-1}]\cdot [(-2+6i)\cdot (-2+6i)^{-1}]$ Modulative and associative properties/Existence of the additive inverser

4) $[(5i)\cdot (-2+6i)]\cdot [(-2-6i)^{-1}\cdot (-2+6i)^{-1}]$ Commutative and associative properties.

5) $[(5i)\cdot (-2+6i)]\cdot [(-2-6i)\cdot (-2+6i)]^{-1}$ $a^{c}\cdot b^{c} = (a\cdot b)^{c}$

6) $[(5i)\cdot (-2+6i)]\cdot [4+36]^{-1}$ $(a+b)\cdot (a-b) = a^{2}-b^{2}$ /Definition of complex number/ $a\cdot (-b) = -a\cdot b$

7) $[(5i)\cdot (-2)+(5i)\cdot (6i)]\cdot 40^{-1}$ Definition of sum.

8) $(-10\cdot i+30\cdot i^{2})\cdot 40^{-1}$ $a\cdot (-b) = -a\cdot b$ /Associative and commutative properties.

9) $(-30-10i)\cdot 40^{-1}$ Commutative properties/Definition of complex number/ $a\cdot (-b) = -a\cdot b$

10) $-30\cdot 40^{-1}-(10i)\cdot 40^{-1}$ Distributive property.

11) $-\frac{30}{40}-\frac{10}{40}i$ Definition of division/Result.

$s = \frac{5i}{-2-6i} = -\frac{30}{40}-\frac{10}{40}i$

6 0

3 years ago