Does the expression 2/5c + 1/4c - 1 have like terms?

When Amy picks a black marble in the fourth attempt, the probability that in the fifth attempt she will pick a red or a black marble is 0.7143.

It should be noted that after the 3rd pick we have: 4 white, 3 red and 8 black marbles.

The probability that the 4th marble is black is:

P ( Black ) = 8 / 15 = 0.5333

After the 4th pick we have: 4 white, 3 red and 7 black marbles.

P ( Red or Black ) = 10 / 14 = 5 / 7 = 0.7143.

Therefore, the probability is 0.7143.

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Amy has a box containing 6 white, 4 red, and 8 black marbles. She picks a marble randomly. It is red. The second time, she picks a white marble. In the third attempt, Amy picks a white marble again. Amy has not replaced the marbles she picked. The probability that the fourth marble Amy picks is black is . If Amy picks a black marble in the fourth attempt, the probability that in the fifth attempt she will pick a red or a black marble is____.

Answer:

Step-by-step explanation:

the answer is 6847 if anyone solves it

The dimensions of the field is Length = 34 meters, width = 14 meters.

Let rectangle: x for width, y for length.

2 ( x + y ) = 96

x + y = 48

2 ( x + y ) + x = 110

x = 110 - 96

x = 14

x + y = 48

y = 48 - 14 = 34

Length = 34 meters, width = 14 meters.

A quadrilateral with equal angles and parallel opposing sides is referred to as a rectangle. Around us, there are a lot of rectangle items. The length and breadth of any rectangle form serve as its two distinguishing attributes. The width and length of a rectangle, respectively, are its longer and shorter sides.

A closed shape with four sides that forms a 90° angle is known as a rectangle. A rectangle can have many different characteristics. The following list includes some of a rectangle's key characteristics.

A quadrilateral is a rectangle.

A rectangle's opposing sides are equal and parallel to one another.

Each vertex of a rectangle has a 90° internal angle.

360° is the total of all interior angles.

The diagonals cut each other in half.

The diagonals are all the same length.

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For any given [tex]0\le y\le4[/tex], a cross section in that plane is a circle whose diameter is [tex]x=\sqrt{10}\,y^2[/tex] with thickness [tex]\Delta y[/tex]. Such a cross section contributes a volume of [tex]\pi \left(\frac x2\right)^2 \, \Delta y = \frac{5\pi}2 y^4 \, \Delta y[/tex].

As [tex]\Delta y\to0[/tex] and the number of cross sectional cylindrical disks increases without bound, the infinite sum of their volumes converge to the volume of the solid, given by the definite integral

[tex]\displaystyle \frac{5\pi}2 \int_0^4 y^4 \, dy = \frac{5\pi}2 \cdot \frac{4^5}5 = \boxed{512\pi}[/tex]

If the length of the insect is 2.5 inches long, then the length of the insect in centimeter is 6.35 centimeter

Given,

The length of the insect = 2.5 inches

Convert inches to centimeter

We know,

1 inches = 2.54 centimeter

2.5 inches = 2.54× 2.5

=6.35 centimeter

Hence, if the length of the insect is 2.5 inches long, then the length of the insect in centimeter is 6.35 centimeter

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The quadratic function in this problem is represented by Graph C.

The quadratic function for the projectile height after t seconds is given by:

S(t) = 109 + 96t - 16t²

From this, we have that:

Thus, the quadratic function in this problem is represented by Graph C.

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The elevation of the trench is between 4 miles and 5 miles.

Herein we have the information of the elevation of the trench in feet and we need to determine between which integers in miles is that elevation, based on the unit conversion from feet to miles. The exact elevation in miles is found by simple rules of three:

x = 22,889 feet × (1 / 5,280 miles / feet)

x ≈ 4.335 miles

The elevation of the trench is between 4 miles and 5 miles.

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The functions f(x) and g(x) so the given function can be expressed as h(x) = f(g(x) are f(x) = 8/x^2 and g(x) = x + 4

The function h(x) is given as:

h(x) = 8/(x + 4)^2

The definition of the function h(x) is

h(x) = f(g(x))

So, we have:

f(g(x)) = 8/(x + 4)^2

Let g(x) = x + 4

So, we have:

f(g(x)) = 8/(g(x))^2

Express g(x) as x

So, we have:

f(x) = 8/x^2

Hence, the functions f(x) and g(x) so the given function can be expressed as h(x) = f(g(x) are f(x) = 8/x^2 and g(x) = x + 4

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Answer:

1 solution

b=7

Step-by-step explanation:

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2b - 5 = 9

2b=14

b=7

1 solution

Answer:

its A

Step-by-step explanation:

[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]

Here we go ~

First of all, it's a graph of mod function, which is transformed.

So, let's proceed with taking graph of modulus initially ~

[tex]\qquad \sf  \dashrightarrow \: y = |x| [/tex]

The required can be tranformed by moving it three units left and four units down.

so, we need to add 3 to x within the function to move it left by units.

i.e

[tex]\qquad \sf  \dashrightarrow \: y = |x + 3| [/tex]

Now, to move it down by 4 units we need to subtract 4 from the whole function.

[tex]\qquad \sf  \dashrightarrow \: y = |x + 3| - 4[/tex]

So, the correct choice is : C

the required can be transformed by moving at 3 units left and 4 units down do you understand ? after that are 3 and x

y = x + 3

now to move it down by 4 units we need to subtract for from the whole function which is y is equal to x + 3 - 4

y = |x+3| - 4

the answer is c

Answer:

-8756 %

Step-by-step explanation:

Because 5 is a strong number

Answer:

  22 3/4 ft

Step-by-step explanation:

The diagram seems to show a 6 1/2 ft person casting a 9 ft shadow at the same time a flagpole is casting a 31 1/2 ft shadow. You want the height of the flagpole.

Shadow lengths are presumed proportional to the height of the object making them. This means ...

  h/(31 1/2) = (6 1/2)/9 . . . . . all lengths in feet

Multiplying by 31 1/2, we get ...

  h = (31 1/2)(6 1/2)/9 = (819/4)/9 = 91/4

  h = 22 3/4 . . . . ft

The flagpole is 22 3/4 feet tall.

1. The cost per equivalent unit for materials for the month in the first processing department of Annenbaum Corporation is $20.50.

2. The cost per equivalent unit for conversion costs for the month in the first processing department of Annenbaum Corporation is $34.208.

The cost per equivalent unit is the quotient of the total costs to be accounted for divided by total equivalent units of production.

The equivalent units of production are a mathematical equivalent of completed units based on their degrees of completion.

Beginning work in process:

Materials costs = $5,700 65%

Conversion costs = $6,800 45%

Started units = 6,500 units

Transferred out units = 5,900 units

Ending inventory:

Material costs = 50%

Conversion costs = 35%

Costs incurred during the period:

Materials costs......... $125,500

Conversion costs...... $207,000

Beginning inventory  =      400 units

Started during period = 6,500 units

Total units processed = 6,900 units

Units transferred out =  5,900 units

Ending inventory =         1,000 units

                      Physical Units    Material          Conversion

Transferred out      5,900       5,900 (100%)    5,900 (100%)

Ending inventory    1,000          500 (50%)         350 (35%)

Total equivalent units            6,400 units       6,250 units

                                        Material          Conversion

Beginning WIP                  $5,700               $6,800

Costs for the period       125,500             207,000

Total production costs $131,200            $213,800

Total equivalent units    6,400 units       6,250 units

Cost per equivalent unit  $20.50         $34.208 ($213,800/6,250)

Thus, the cost per equivalent unit of materials is $20.50, while it is $34.208 for conversion costs.

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Cost Percent Complete Materials costs......... $5,700 65% Conversion costs...... $6,800 45% A total of 6,500 units were started and 5,900 units were transferred to the second processing department during the month. The following costs were incurred in the first processing department during the month: Materials costs......... $125,500 Conversion costs...... $207,000 The ending inventory was 50% complete with respect to materials and 35% complete with respect to conversion costs. Required: 1. What's the cost per equivalent unit for materials for the month in the first processing department? 2. What's the cost per equivalent unit for conversion costs for the month in the first processing department?

The missing number (x) from the sequence → 11, 29, 11, x  is 17.

We have the mean of given set of numbers.

We have to identify the missing number.

The mean in math and statistics summarizes an entire dataset with a single number representing the data's center point or typical value. It is calculated  using the formula -

Mean (M) = ∑a[i] / n

where -  

∑a[i] = sum of the elements in a data set

n = total number of elements

According to the question - assume that the missing number is x. Then, we have -

11, 29, 11, x

Now, using the formula of mean -

M = ∑a[i] / n

17 = (11 + 29 + 11 + x)/4

68 = 51 + x

x = 68 - 51

x = 17

Therefore, the missing number is 17.

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The confidence interval for n = 22, X bar = 30 and σ = 7 at a 98% confidence level is 30 ± 3.472 which means the value will range between [26.528 – 33.472] respectively.

In statistics, a confidence interval is a range of values that is determined through the use of observed data, calculated at a desired confidence level that may contain the true value of the parameter being studied.

The formula used for the calculation of confidence interval is given by

Confidence level = X bar ± Z×σ/√n

where, X bar is the sample mean, Z is the confidence level value, σ is the sample standard deviation and n is the sample size.

Given that, n = 22, X bar = 30, σ = 7 and Z = 2.326 for 98%

= 30 ± 2.3263 × 7/√22

= 30 ± 3.472

= [26.528 – 33.472]

Therefore, The confidence interval for n = 22, X bar = 30 and σ = 7 at a 98% confidence level is 30 ± 3.472 which means the value will range between [26.528 – 33.472] respectively.

Hence, 30 ± 3.472 or [26.528 – 33.472] is the required answer.

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Answer:

14

Step-by-step explanation:

because if you subract -17 it will become a postive 17 and 17-3 is 14

Hope this helps!

If you have anyother questions feel free to ask!

We need to know about ratio for solving the problem. Ahmed has to divide the money as 1000, 2000 and 2500.

In simple words ratio indicates how many times one number contains other. With the help of this division we need to assume a number x which is held 2 times in first part, 4 times in second part and 5 times in third part of the total money that Ahmed wants to divide. We can find the ratio of a quantity to another by dividing one quantity by the other and cancelling the  common factors. For this question we have a total amount of money 5500 which we need to divide in ratio 2:4:5 in other words we can say that the three parts are 2x,4x and 5x, these three parts will add up to be 5500. So we can write

2x+4x+5x=5500

11x=5500

x=500

The three parts of the money will be 2x500=1000, 4x500=2000 and 5x500=2500

Therefore we found using the concept of ratio that Ahmed needs to divide his money as 1000,2000 and 2500.

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The weighted average of the points on the line is 3/5 after applying the concept of the weighted average.

It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.

It is given that:

The number line is shown in the picture:

The number line can be defined as the representation of the numbers on a straight line that goes infinitely on both sides.

From the number line:

The weighted average = [2(-5) + 8(2)]/(2 + 8)

The weighted average = [-10 + 16]/(10)

The weighted average = [6]/(10)

The weighted average = 3/5

Thus, the weighted average of the points on the line is 3/5 after applying the concept of the weighted average.

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All the values of x that solve the given system of equations are as follows:

x = 17/2.

A system of equations is when multiple variables are related by equations, which are solved to find the values of each variable. Usually, these relations are linear, but they may also be quadratic, as is the case in this problem.

For this problem, we are given two equations, as follows:

From the second equation, we have that:

x = 9 - 3y.

Replacing in the first, we have that:

(9 - 3y)² - 9y² = 72.

9y² - 54y + 81 = 72.

54y = 9.

y = 9/54

y = 1/6, as 9/9 = 1, 54/9 = 6.

Hence the solution for x of the system of equations is found by replacement, as follows:

x = 9 - 3y = 9 - 3/6 = 9 - 1/2 = 18/2 - 1/2 = 17/2.

The solution is x = 17/2.

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Answer:

5+n/9=3

Step-by-step explanation:

Explanation:

Think of a substitute teacher. They temporarily replace your original teacher. The same idea applies with replacing the variable with a number.

For example, the equation x+2 = 7 has the solution x = 5. We can check this by substituting or replacing x with 5 to say 5+2 = 7, which is indeed a true mathematical statement. This confirms the solution.

It should be noted the difference between - 4 1/2 and 3 1/4 is - 1/14.

It should be noted that fractions are not while numbers. The number at the top is the numerator and the number down is the denominator.

In this case:

- 4 1/2 + 3 1/4

= - 4 2/4 + 3 1/4

= - 1 1/4

Therefore, it should be noted the difference between - 4 1/2 and 3 1/4 is - 1/14.

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Answer:

Step-by-step explanation:

You are given the solution to a 2-step linear equation and asked to identify the properties of equality and operations that support the steps of the solution.

5(x -3) = 20 . . . . This is the Given equation we're solving.

(1/5)(5(x -3)) = (1/5)(20) . . . . Both sides are multiplied by 1/5. The Multiplication property of equality says you can do this without changing the value of the variable.

1(x -3) = 4 . . . . (1/5)(5) is replaced by 1. The Multiplicative inverse property tells you the product of a number and its multiplicative inverse is 1.

x -3 = 4 . . . . 1(x -3) is replaced by (x -3). The Multiplicative identity property tells you multiplication by 1 changes nothing. These properties of multiplication are what allow you to remove the factor of 5 from the equation.

Now, we're about to do the same thing with addition: use its properties to remove the unwanted -3.

x -3 +3 = 4 +3 . . . . 3 is added to both sides. The Addition property of equality says you can do this without changing the value of the variable.

x +0 = 7 . . . . -3+3 is replaced by 0. The Additive inverse property tells you the sum of a number and its additive inverse is zero.

x = 7 . . . . x+0 is replaced by x. The Additive identity property tells you addition of 0 changes nothing. These properties of addition are what allow you to remove the added -3 from the equation.

__

Additional comment

Clearly, for exercises like this, it is essential to know the names of these properties and what they mean. Once you understand cancelling multiplication using multiplicative inverses, and cancelling addition using additive inverses, you are on your way to solving most algebra problems.

You must always keep in mind the properties of equality that tell you the same operation must be performed on both sides of the equal sign.

Understanding these properties can also help you understand the relation between multiplication and division, addition and subtraction. Division is multiplication by the multiplicative inverse; subtraction is addition of the additive inverse.

The employee must make a sale of $ 1,56,000 to get a total salary of $ 5000 with the commission rate as 2 %.

The basic salary of the employee = $ 2000

Now he wants to earn $ 5000.

That means he has to earn 4 500 - $ 2000 = $ 3000 from the sales commission that he gets.

Sales commission is 2 %.

Let the sales above $ 6000 be x

2 % x = 3000

2 / 100 x = 3000

2 x = 3,00,000

x = 1,50,000

Total sales = $ 6000 + $ 1,50,000 = $ 1,56,000

Therefore, the employee must make a sale of $ 1,56,000 to get a total salary of $ 5000 with the commission rate as 2 %.

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Answer:

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