I want pictures of how you did it on paper! please please help me now

Answer:

Below.

Step-by-step explanation:

4x^2 - 4x - 1  = 0

This will not factor.

But 4x^2 - 4x + 1 = 0 will:

= (2x - 1)(2x - 1) = 0

x = 0.5  (*2)

The correct property should be matched with each of Tyrone's steps for solving the equation as follows:

4x = 2 - 8 + 12x   ⇒ distributive property

4x = -6 + 12x      ⇒ subtraction property of equality.

-8x = -6              ⇒ combine like terms.

x = 3/4               ⇒ division property of equality.

The distributive property of multiplication states that when the sum of two or more addends are multiplied by a particular numerical value, the same result (output) would be obtained as when each addend is multiplied respectively by the same numerical value, and the products are added together.

Mathematically, the distributive property of multiplication can be represented by this expression:

a(b + c) = ab + ac.

By applying the distributive property of multiplication in step 1, we have:

4x = 2 - 4(2 - 3x)

4x = 2 - 8 + 12x

By applying the subtraction property of equality in step 2, we have:

4x = -6 + 12x

Next, we would combine like terms in step 3 as follows:

4x - 12x = -6

-8x = -6

By applying the division property of equality in step 4, we have:

x = 6/8

x = 3/4.

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Answer:

Very low, as it means that 97% of people scored the same or higher than you.

Answer: In 1858 twelve pairs of the European rabbit were released on a ranch in of mosquitoes only 90 per cent of the remaining population was killed

Step-by-step explanation:

Cylinder Volume

V = hπr²

154 cm³ = 16 cm × 3.14 × r²

154 cm³ = 50.28 cm × r²

r² = 154 cm³ : 50.28 cm

r² = 3.0625 cm²

r = 1.75 cm

d = 2r

d = 2 × 1.75 cm

d = 3.5 cm

So, the diameter of the Cylinder is 3.5 cm

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Answer: 50 words per minute

Step-by-step explanation: if he types 10 words per minute and if you multiply that by 5 the answer is 50 words per minute

Answer:

The probability of pulling a blue marble from the bag is;

Explanation:

Given that there are 2 blue, 5 yellow, and 3 white marbles in a bag.

The total number of marbles in the bag is;

The probability of pulling a blue marble from the bag will be;

Substituting the given values;

Therefore, the probability of pulling a blue marble from the bag is;

Answer:

Malik tipped a 17.5% tip. You could also say he tipped a 17.6% tip depending on how you round. Both answers get you a dollar.

A big sample that should the experimenter take from the population is 256 and if the standard deviation and the width of the confidence interval are both doubled then the sample is also 256.

In the given question,

The confidence level = 99%

Given width = 0.5

Standard deviation of resistance(\(\sigma\))= 1.55

We have to find a big sample that should the experimenter take from the population and what happens if the standard deviation and the width of the confidence interval are both doubled.

The formula to find the a big sample that should the experimenter take from the population is

Margin of error(ME) \(=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}\)

So n \(=(z_{\alpha /2}\frac{\sigma}{\text{ME}})^2\)

where n=sample size

We firstly find the value of ME and \(z_{\alpha /2}\).

Firstly finding the value of ME.

ME=Width/2

ME=0.5/2

ME=0.25

Now finding the value of \(z_{\alpha /2}\).

Te given interval is 99%=99/100=0.99

The value of \(\alpha\) =1−0.99

The value of \(\alpha\) =0.01

Then the value of \(\alpha /2\) = 0.01/2 = 0.005

From the standard table of z

\(z_{0.005}\) =2.58

Now putting in the value in formula of sample size.

n\(=(2.58\times\frac{1.55}{0.25})^2\)

Simplifying

n=(3.999/0.25)^2

n=(15.996)^2

n=255.87

n≈256

Hence, the sample that the experimenter take from the population is 256.

Now we have to find the sample size if the standard deviation and the width of the confidence interval are both doubled.

The new values,

Standard deviation of resistance(\(\sigma\))= 2×1.55

Standard deviation of resistance(\(\sigma\))= 3.1

width = 2×0.5

width = 1

Now the value of ME.

ME=1/2

ME=0.5

The z value is remain same.

Now putting in the value in formula of sample size.

n\(=(2.58\times\frac{3.1}{0.5})^2\)

Simplifying

n=(7.998/0.5)^2

n=(15.996)^2

n=255.87

n≈256

Hence, if the standard deviation and the width of the confidence interval are both doubled then the sample size is 256.

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Answer:

1. Always translate the question stem, set up equations (limit the number of variables) and breakdown the question stem of possible

2. Never overlook the constraints the question provides.

Now the question stem tells us that on the

1st day Joe earned = x

2nd day = 2x

3rd day = 4x

4th day = 8x

Question stem: Did Joe earn less than $35 on the 4th day -----> 8x < 35 ----> x < 4.375

Since x is an integer, the question becomes 'Is x <= 4

Statement 1 : Joe earned more than $120 in total for the first five days he worked in December.

x + 2x + 4x + 8x + 16x > 120

31x > 120 ---> x > 3.9....

This gives us both a YES and a NO since x can be 4 or any integer greater than 4

Statement 2: Joe earned less than $148 on the 6th day he worked in December

32x < 148 ----> x < 4.625

Since x is an integer, x <=4. Sufficient.

hope this helps

-lvr

Answer:

\(\boxed{\frac{4}{3} x^3 + c}\)

Step-by-step explanation:

\(\int\limits {4x^2} \ dx\)

\(= \frac{4}{3} x^3 + c\)

the aswers is 4/3 x³ + c

okey fine

\((\stackrel{x_1}{1}~,~\stackrel{y_1}{-3})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{-4}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{-4}-\stackrel{y1}{(-3)}}}{\underset{\textit{\large run}} {\underset{x_2}{3}-\underset{x_1}{1}}} \implies \cfrac{-4 +3}{2} \implies \cfrac{ -1 }{ 2 } \implies - \cfrac{ 1 }{ 2 }\)

\(\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-3)}=\stackrel{m}{- \cfrac{ 1 }{ 2 }}(x-\stackrel{x_1}{1}) \implies y +3 = - \cfrac{ 1 }{ 2 } ( x -1) \\\\\\ y+3=- \cfrac{ 1 }{ 2 }x+\cfrac{1}{2}\implies y=- \cfrac{ 1 }{ 2 }x+\cfrac{1}{2}-3\implies {\Large \begin{array}{llll} y=- \cfrac{ 1 }{ 2 }x-\cfrac{5}{2} \end{array}}\)

Answer: First, let's find the slope of the line:

slope = (change in y) / (change in x)

slope = (-4 - (-3)) / (3 - 1)

slope = -1/2

Now, let's choose one of the points, say (1,-3), and use the point-slope formula:

y - y1 = m(x - x1)

where m is the slope and (x1, y1) are the coordinates of the point.

So, substituting in the values we get:

y - (-3) = (-1/2)(x - 1)

Simplifying this equation, we get:

y + 3 = (-1/2)x + 1/2

Subtracting 3 from both sides, we get:

y = (-1/2)x - 5/2

Therefore, the equation of the line that passes through the points (1,-3) and (3,-4) is y = (-1/2)x - 5/2.

Your welcome.

Step-by-step explanation:

Answer:

it is a whole number but because rational numbers include all intergers and whole numbers it is also a rational number

Step-by-step explanation:

Answer: -19.2

Step-by-step explanation:

The data set is

1, 2, 4, 7

The answers are;

The median in a case where the data set is an even number, then the median would take account of both middle values and then calculate addition of both and then divide by 2

The Mode is the most frequently occuring value in the data set. In this case, all observed data occur just once, and none of them occur more than once. Hence there is no Mode

The second year's interest rate is 1.80%.

Compound interest is defined as Since compound interest accrues and is added to the accrued interest from earlier periods, borrowers are expected to pay interest on interest in addition to principal.

We are aware that the compound interest formula is,

A = P(1 + r/100)ⁿ.

Where A is the amount, P is the principle, r is the rate, and n is the number of years.

Given, Katy places $2000 over a three-year period in a savings account.

For the first year, the account offers compound interest at a 2.5% annual rate.

∴ A = 2000(1 + 2.5/100)¹.

A = 2000(1.025). (1.025).

A = 2050.

It now earns x% for the second year.

∴ 2050(1+x/100)² = 2124.46

(1+x/100)² =2124.46/2050

1+x/100 =√(2124.46/2050)

x/100 = √(2124.46/2050) -1

x = (√(2124.46/2050) -1)*100

x = 1.80%.

the interest is 1.80 percent

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There are a few different reasons why certain categorical variables may not be allowed in a linear regression model:

Some software packages require categorical variables to be converted to numerical variables before they can be included in a linear regression model. This is typically done using one-hot encoding, where each category is represented by a binary variable indicating whether or not it is present.

If the number of categories for a given variable is very large, this can create a very large number of new variables, which may exceed the capacity of the software or the memory available on the computer running the analysis.

Some software packages may not allow categorical variables with a very large number of categories, again because of the potential computational demands of encoding these variables as binary variables.

If a categorical variable has a large number of categories relative to the sample size, it may not be possible to estimate the coefficients for each category with enough precision to be useful. Some software packages may not allow categorical variables with missing values, unless those missing values are explicitly coded as a category.

Overall, the decision to include or exclude categorical variables from a linear regression model will depend on a variety of factors, including the number of categories, the software being used, the size of the dataset, and the research question being addressed.

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In simplest radicle form, the length of the third side = 9 units.

Given,

Side A = 7 units.

Side B = 4√2 units.

To find Side C, we use the Pythagorean formula,

a² = b² + c²

7² = \(4\sqrt{2}^{2}\) + c²  

c² = 49 + 32

c² = 81

√c² = √81

c = -9,9.

c ≠ -9 as negative values are not considered for dimensions.

Hence, the length of the third side is 9 units.

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Your question is incomplete. The complete question is:

With reference to the figure below,  find the length of the third side. If necessary, write in the simplest radical form.

The measures of x are obtained with the Pythagorean Theorem, as follows:

1. x = 10.2.

2. x = 7.2.

3. x = 13.7.

4. x = 36.2.

5. x = 10.7.

The Pythagorean Theorem is a geometry axiom which states that for a right triangle, the length of the hypotenuse squared is equals to the sum  of the lengths of the sides squared.

Hence, for item 1, we have that:

x² + 16² = 19²

x = square root(19² - 16²)

x = 10.2.

For item 2, we have that:

x² + 12² = 14²

x = square root(14² - 12²)

x = 7.2.

For item 3, we have that:

x² + 9.2² = 16.5²

x = square root(16.5² - 9.2²)

x = 13.7.

For item 4, we have that:

x² = 15² + 33²

x = square root(15² + 33²)

x = 36.2.

For item 5, first we find the side of the top right triangle, hence:

h² + 16² = 25²

h = square root(25² - 16²)

h = 19.2.

Then the value of x is obtained as follows:

x² + 19.2² = 22²

x = square root(22² - 19.2²)

x = 10.7.

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The length of a side of the hexagon or square is - 16 units

The length of a side of the hexagon or square = x

The perimeter of the square = 4 × lengths of its side

                                               = 4x

The perimeter of the hexagon = 6 × lengths of its side

                                                   = 6x

According to the question,

                            4x + 32 = 6x

                       ⇒ 6x - 4x = 32

                       ⇒  2x = 32

                       ⇒  x = 16

So, the length of a side of the hexagon or square is - 16 units.

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Answer:

7

Step-by-step explanation:

Answer:

x = 7

Step-by-step explanation:

Answer:y=415 x = 21.5

Step-by-step explanation:

We can see 4x-37 = 49

4x = 86

x = 21.5

4(21.5) -3 = 83

Then we can see what the other side is because they are equal

y/5 = 83

83 x 5 = 415

y=415

a. This equation states that the ending inventory for period j (sj) is equal to the beginning inventory from the previous period (sj-1) plus the production quantity in period j (xj), minus the demand in period j (dj).

b. This constraint ensures that the production quantity in period j (xj) does not exceed the production capacity for that period (Cj).

c. This constraint ensures that the ending inventory for period j (sj) is greater than or equal to the required inventory level for that period (Ij).

a. The mathematical relationship or model that shows ending inventory as a function of beginning inventory, production, and demand can be represented as:

sj = sj-1 + xj - dj

This equation states that the ending inventory for period j (sj) is equal to the beginning inventory from the previous period (sj-1) plus the production quantity in period j (xj), minus the demand in period j (dj).

b. If the production capacity for period j is given by Cj, the constraint that should be added is:

xj ≤ Cj

This constraint ensures that the production quantity in period j (xj) does not exceed the production capacity for that period (Cj).

c. If inventory requirements for period j mandate an ending inventory of at least Ij, the constraint that should be added is:

sj ≥ Ij

This constraint ensures that the ending inventory for period j (sj) is greater than or equal to the required inventory level for that period (Ij).

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Given:

Equation of a line is

\(x-3y=-18\)

To find:

The slope of the line perpendicular to the given line.

Solution:

The slope of the equation \(ax+by=c\) is

\(Slope=-\dfrac{a}{b}\)

We have,

\(x-3y=-18\)

Here, a=1, b=-3. So, slope of this line is

\(m_1=-\dfrac{1}{-3}\)

\(m_1=\dfrac{1}{3}\)

Product of slopes of two perpendicular lines is -1.

Let slope of perpendicular line is \(m_2\).

\(m_1\cdot m_2=-1\)

\(\dfrac{1}{3}\cdot m_2=-1\)

\(m_2=-3\)

Therefore, the slope of the perpendicular line is -3.

Answer:

(5,1)

(3,4)

(2,2)

(1,5)

9514 1404 393

Answer:

  \(B=\dfrac{T+9}{A}\)

Step-by-step explanation:

Add 9 to both sides of the equation, and divide by the coefficient of B.

  T = BA -9

  T +9 = BA

  (T +9)/A = B

We can rewrite that with B on the left:

  B = (T +9)/A

The power series for the function\(f(x) = 8/(3x^2)\), centered at c = 5, is \(8/75 - 16/375(x-5) + 48/9375(x-5)^2 - 64/78125(x-5)^3 + ...\)

To find the power series for the function \(f(x) = 8/(3x^2)\)centered at c = 5, we can use the formula for the Maclaurin series:

\($f(x) = f(c) + \frac{f'(c)}{1!}(x-c) + \frac{f''(c)}{2!}(x-c)^2 + \frac{f'''(c)}{3!}(x-c)^3 + ...$\)

First, we need to find the derivatives of f(x):

\(f(x) = 8/(3x^2)\)

\(f'(x) = -16/(3x^3)\)

\(f''(x) = 48/(3x^4)\)

\(f'''(x) = -192/(3x^5)\)

Next, we evaluate these derivatives at c = 5:

\(f(5) = 8/(35^2) = 8/75\)

\(f'(5) = -16/(35^3) = -16/375\)

\(f''(5) = 48/(35^4) = 48/9375\)

\(f'''(5) = -192/(35^5) = -64/78125\)

Plugging these values into the formula, we get:

\(f(x) = 8/75 - 16/375(x-5) + 48/9375(x-5)^2 - 64/78125(x-5)^3 + ...\)

This is the power series for f(x) centered at c = 5.

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Answer:

5.8 is bigger

Step-by-step explanation:

Answer:

5.8

Step-by-step explanation:

Since they both start with 5, you look at the next number. Which ever number is bigger is the greater number.

Answer:

$7/year

Step-by-step explanation:

228-200 = 28

divide by the 4 years : 28/4= 7