Select all equations that are equivalent to

5 - (6 - 2x) = (3x+4)/2


-1 + 2x = (3x+4)/2


30 - 10x = (3x+4)/2

5-(6 - 2x) = 3/2x+2

5- (6 – 2x) = 3x+4

- 2 + 4x = 3x + 4

Answer:

x≤4

Step-by-step explanation:

The statement "the expression (213 + 55) ÷ 4 show how you could calculate the amount of money Ross has" is true. Dividing the total cost by 4 is the same as multiplying by 4. The correct answer is (c).

The expression (213 + 55) ÷ 4 represents the calculation of the total cost of the computer and software divided by four, which is the amount of money Ross has. The total cost of the computer and software is $213 + $55 = $268. Dividing $268 by 4 gives $67, which is a fourth of the total cost. Therefore, Ross has $67.

Dividing by 4 is the same as multiplying by 1/4. So, another way to write the expression is (213 + 55) × (1/4). Both expressions represent the same calculation and give the same result.

Therefore, option (c) is the correct answer, and the expression (213 + 55) ÷ 4 shows how to calculate the amount of money Ross has.

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Complete question is:

Ross has a fourth of the amount needed to buy a new computer. The computer costs $213 and the additional software costs $55. Does the expression (213 + 55) ÷ 4 show how you could calculate the amount of money Ross has? Explain.

a) Yes. Dividing the total cost by 14 is the same as multiplying by 14.

b) No. There is no way to tell how much money Ross has from this expression.

c) Yes. Dividing the total cost by 4 is the same as multiplying by 4.

d) Yes. Dividing the total cost by 4 is the same as multiplying by 14

It will take approximately 7.78 years for your salary at job A to exceed your salary at job B.

To solve this problem, we need to set up an equation. Let x represent the number of years that it will take for your salary at job A to exceed your salary at job B. We can use this equation to solve for x:

$46,000(1.05)^x > $55,000(1.02)^x

Now, let's simplify this equation to solve for x:

(1.05)^x > (1.02)^x * (55000/46000)

Taking the natural log of both sides of the equation:

xlog(1.05) > log(1.02) + log(55000/46000)

Solving for x:

x > [log(1.02) + log(55000/46000)]/log(1.05) ~ 7.78

It will take approximately 7.78 years for your salary at job A to exceed your salary at job B.

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The overhead allocation rate for Department K is $52.63 and the overhead allocation rate for Department Q is $82.26.

The overhead allocation rate for departments K and Q is calculated by dividing the overhead allocated to each department by the direct labor hours used by each department. For Department K, the overhead allocation rate is calculated by dividing $200,000 by 3,800 direct labor hours, which equals $52.63 per hour. For Department Q, the overhead allocation rate is calculated by dividing the remaining overhead of $650,000 by the 6,200 direct labor hours used by the department, which equals $104.84 costs per hour. To calculate the total factory overhead, the following formula is used:Total Factory Overhead = (Department K Overhead + Department Q Overhead) / (Total Direct Labor Hours Used) Total Factory Overhead = ($200,000 + $650,000) / (3,800 + 6,200) Total Factory Overhead = $850,000 / 10,000 .Total Factory Overhead = $85.00 per hour

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The probability of selling at least one property in one week is 0.9718

We can approach this problem by finding the probability of not selling any property in a week and then subtracting it from 1 to get the probability of selling at least one property.

The probability of not selling any property in a week is the probability of not selling any one property in a week, raised to the power of the number of properties:

P(not selling any property) = (1 - 0.4)^11 = 0.0282

Therefore, the probability of selling at least one property in a week is:

P(selling at least one property) = 1 - P(not selling any property) = 1 - 0.0282 = 0.9718

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The solution to the expression (12x³ + 9x² - 3) / 3x is (4x³ + 3x² - 1) / x

An equation is an expression that shows how two or more numbers and variables are related using mathematical operations of addition, subtraction, multiplication, division, exponents and so on.

Given the expression:

(12x³ + 9x² - 3) / 3x

To solve, we need to factorize the numerator to get:

= 3(4x³ + 3x² - 1) / 3x

= (4x³ + 3x² - 1) / x

The solution to the expression is (4x³ + 3x² - 1) / x

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According to the distributive property of algebraic expressions, each term in an expression's sum or difference must be multiplied by a number outside of the parenthesis. A number is used as the value outside of the parenthesis, with the total or difference.

By employing the distributive property of multiplication in step 2, we can reduce the expression by multiplying 5 by both 3 and y. So, our total is [tex]9 + 15 + 5y[/tex] .

In step 3, we use the commutative characteristic of addition to reorder the terms in the phrase. We now have  [tex]15 + 9 + 5y,[/tex] which equals [tex]24 + 5y[/tex] .

Step 4 involves applying the commutative property of addition to rearrange the equation's terms once more. This leads to the final simplified formulation, which is [tex]5y + 24[/tex] .

Therefore, The justification offered in step 1 is provided expression because it is the first expression provided and doesn't need to be further explained.

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Limaçons, Cardioids, and other polar curves are curves described in polar form by their radial distance from the origin and the angle they make with a fixed reference line

In polar form, curves are described in terms of their radial distance from the origin and the angle they make with a fixed reference line.

Here are the definitions of some common polar curves:

Limaçons: A limaçon is a polar curve defined by the equation r = a + b cos(θ) or r = a + b sin(θ), where a and b are constants. The shape of the limaçon depends on the values of a and b. If a > b, the curve has a loop that encloses the origin; if a = b, the curve is a cardioid; and if a < b, the curve has a dimple that encloses the origin.

Cardioids: A cardioid is a special case of a limaçon where a = b. The equation of a cardioid is r = a + a cos(θ) or r = a + a sin(θ), where a is a constant. A cardioid looks like a heart-shaped curve.

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In a rectangle having an area of 36 cm, if the length is three times more than the width of the rectangle is approximately 3.46 cm.

Let's assume that the width of the rectangle is "w" cm-

According to the problem, the length of the rectangle is three times longer than the width. Therefore, the length of the rectangle would be 3w cm.

The area of the rectangle is given as 36 cm². We know that the formula for the area of a rectangle is A = length x width.

So, we can substitute the values we have and get:-

36 = (3w) x w

Simplifying the equation, we get:-

36 = 3w²

Dividing both sides by 3, we get--

12 = w²

Taking the square root of both sides, we get--

w = √12

w ≈ 3.46

Therefore, the width of the rectangle is approximately 3.46 cm.

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Answer:

orange box = [tex]1 \frac{1}{4}[/tex]

blue box = [tex]1\frac{3}{4}[/tex]

Step-by-step explanation:

We are counting up in quarters (1/4) so we add 1/4 (or a quarter) on every time.

1/4 + 1/4 = 2/4 = 1/2 (equivalent fractions)

2/4 + 1/4 = 3/4

3/4 + 1/4 = 4/4 = 1 whole = 1

1 + 1/4 = 1 1/4 = orange box

1 1/4 + 1/4 = 1 1/2 or 1 2/4

1 2/4 + 1/4 = 1 3/4 = blue box

etc

hope this makes sense.

The volume of the cone is 10.5 in³.

Given that,

The radius of the cone = 2.5 in

The height of the cone = 1.6 in

The volume of the cone = [tex]\frac{1}{3}\pi r^{2} h[/tex]

                                        = [tex]\frac{1}{3}[/tex] × 3.14 × (2.5)²× 1.6

                                        =[tex]\frac{1}{3}[/tex] × 3.14 × 6.25 × 1.6

                                        = 10.5 in³

Therefore, the volume of the cone = 10.5 in³.

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The duration of the compression event is  100 degrees of crankshaft rotation by using the number of degrees of crankshaft rotation between the point where the intake valve closes (IVC) and the point where the exhaust valve opens (EVO).

To determine the duration of the compression event, we need to find the number of degrees of crankshaft rotation between the point where the intake valve closes (IVC) and the point where the exhaust valve opens (EVO).

Intake valve opens (IVO) at 8 degrees before top dead center (BTDC)

Intake valve closes (IVC) at 50 degrees after bottom dead center (ABDC)

Exhaust valve opens (EVO) at 50 degrees before bottom dead center (BBDC)

Exhaust valve closes (EVC) at 8 degrees after top dead center (ATDC)

First, we need to determine the position of the piston at each of these valve events. We know that the stroke of the engine is 180 degrees, so we can use this information to calculate the position of the piston at each event:

IVO: piston is at 8 degrees BTDC

IVC: piston is at 180 - 50 = 130 degrees ATDC

EVO: piston is at 180 + 50 = 230 degrees ATDC

EVC: piston is at 360 - 8 = 352 degrees BTDC

To find the duration of the compression event, we need to calculate the number of degrees of crankshaft rotation between IVC and EVO. We can do this by subtracting the position of the piston at IVC from the position of the piston at EVO:

Duration of compression event = EVO - IVC

= 230 - 130

= 100 degrees

Therefore, the duration of the compression event is 100 degrees of crankshaft rotation.

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If the transformation is written in the form y = a(x - p)² + q, the values of a, p, and q include the following: a = 2, p = -4, q = 3.

Mathematically, the standard equation of the directrix lines for any parabola is given by this mathematical expression:

y = a(x - h)² + k.

Where:

Based on the information provided about the parabola, we have the following:

Scale factor, a = 2.

Vertical translation upward, q = 3.

Horizontal translation to the left, p = -4.

Therefore, the equation becomes;

y = a(x - h)² + k.

y = a(x - (-4))² + 3.

y = a(x + 4)² + 3.

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Part a: the success, with a probability of p = 1/5.

Part b:The mean of X is μ = np = 6(1/5) = 1.2.

Part c:The probability of at least two customers receiving the coupon can be computed using the binomial distribution formula, P(X ≥ 2) = 1 - P(X ≤ 1) = 1 - [tex](6C1)(1/5)^1(4/5)^5 - (6C0)(1/5)^0(4/5)^6[/tex]

Part A: Yes, X is a binomial random variable. A binomial random variable is the number of successes in a sequence of n independent trials, where each trial has a probability p of success. In this case, X is the number of customers that receive the 50% off coupon, which is the success, with a probability of p = 1/5. There are also a total of n = 6 independent trials, which is the number of customers that made purchases from the website.

Part B: The mean of X is μ = np = 6(1/5) = 1.2. This means that, on average, the store can expect 1.2 customers to receive the 50% off coupon. The standard deviation of X is σ = √(np(1 - p)) = √(6(1/5)(1 - 1/5)) = 0.9. This means that there is a large degree of variability in the number of customers that receive the 50% off coupon.

Part C: The store's claim is accurate. The probability of at least two customers receiving the coupon can be computed using the binomial distribution formula, P(X ≥ 2) = 1 - P(X ≤ 1) = 1 - [tex](6C1)(1/5)^1(4/5)^5 - (6C0)(1/5)^0(4/5)^6[/tex]

≈ 0.477,

which is close to the claimed probability of 1/5.

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The solution to the system of equations y = -2x + 4 and y = 1/2x + 4 is the point (0, 4)

A system of equations is a set of two or more equations that are to be solved simultaneously.

The solution of a system of equations is a set of values that satisfy all the equations in the system.

Given the equations:

y = -2x + 4

y = 1/2x + 4

The question implies that we solve graphically

So, we create a plot of the equations y = -2x + 4 and y = 1/2x + 4

And we write out the coordinate of the point of intersection between the two equations

From the graph of the system of equations (see attachment), we have the point of intersection to be (0, 4)

This means that the solution to the system of equations is (0, 4)

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Complete question

Solve the system of equations graphed on the coordinate axes below.

y = -2x + 4

y = 1/2x + 4

Answer:

z = 14

3x + 2y = 30

Step-by-step explanation:

z = 14

3x + 2y = 30 are the equations because they have an equal sign, =, in them.

The others are "expressions" because they don't have the equal sign.

a) The function S(t) that inputs the number of minutes since the ice was removed from the freezer and outputs the side length of the cube in the salt is S(t) = 3 - 0.5t cm.

b) S(t) = 0 when t = 6 min, which means that the ice cube in the salt has melted completely.

c) The function P(t) that inputs the number of minutes since the ice was removed from the freezer and outputs the side length of the other cube is P(t) = 3 - 0.1t cm.

d) The function V(x) that inputs the side length x of an arbitrary cube and outputs the volume of that cube is V(x) = x^3 cm^3.

e)

(i) P(2) makes sense and represents the side length of the other cube 2 min after it was removed from the freezer.

(ii) V(S(5)) makes sense and represents the volume of the cube in the salt 5 min after it was removed from the freezer. (iii) P(S(1)) does not make sense because the P and S functions take a time value, not a side length.

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The given first-order differential equation is linear in the indicated dependent variable because it matches the standard form of a linear first-order differential equation, a1(x) dy/dx + a0(x)y = f(x).

First, let us review what a linear first-order differential equation is. Ais a differential equation that can be written in the form:

a1(x) dy/dx + a0(x)y = f(x)

Now, let us compare the given differential equation to the standard form of a linear first-order differential equation. The given differential equation is:

a1(x) dy/dx + a0(x)y

As we can see, the given differential equation matches the standard form of a linear first-order differential equation. Therefore, we can conclude that the given differential equation is linear in the indicated dependent variable.

In conclusion, the given first-order differential equation is linear in the indicated dependent variable because it matches the standard form of a linear first-order differential equation, a1(x) dy/dx + a0(x)y = f(x).

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The side length of a square with an area of 49 square centimeters is 7 centimeters.

Area is a measurement of the amount of space inside a 2-dimensional shape, such as a rectangle, square, triangle, circle, or any other polygon

The area of a square is calculated by multiplying its length by its width. For a square, however, its length and width are equal.

So, if we let "x" be the side length of the square, we can express the area as,

x^2 = 49

To solve for x, we can take the square root of both sides of the equation:

sqrt(x^2) = sqrt(49)

x = 7 centimeter

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The original price of the shoes was $26.

A coupon is a voucher or a code that can be used to get a discount or a special offer when making a purchase.

Let the original price of the shoes be x.

According to the problem, Martin gets a discount of $3 on the original price, so he pays (x - 3) dollars.

Then, the store takes 20% off the reduced price, which means Martin pays 80% of (x - 3) dollars.

We can write this information as an equation:

0.8(x - 3) = 18.4

Simplifying:

0.8x - 2.4 = 18.4

0.8x = 20.8

x = 26

Therefore, the original price of the shoes was $26.

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Answer:

The answer is x = 2/7

Step-by-step explanation:

To find the intersection between 6x - 2 and 2 - 8x, we need to solve the equation:

6x - 2 = 2 - 8x

Adding 8x to both sides, we get:

14x - 2 = 2

Adding 2 to both sides, we get:

14x = 4

Dividing both sides by 14, we get:

x = 4/14 = 2/7

To find the values of x that satisfy the inequality 7x + 6 ≤ 13, we need to solve the inequality:

7x + 6 ≤ 13

Subtracting 6 from both sides, we get:

7x ≤ 7

Dividing both sides by 7, we get:

x ≤ 1

Therefore, the intersection between 6x - 2 and 2 - 8x for values of x that satisfy 7x + 6 ≤ 13 is x = 2/7. Since 2/7 is less than or equal to 1, it satisfies the inequality.

So the answer is x = 2/7.

Hope this helps! Sorry if it's wrong. If you need more help, ask me! :]

False. The area of a circle is equal to 7.854.

The formula for the circumference of a circle is C = 2πr,

where C is the circumference and r is the radius. We can rearrange this formula to solve for the radius:

r = C/2π.

In this case, we are given that the circumference is 10, so we can calculate the radius as:

r = 10/2π

r = 5/π

To calculate the area of a circle, we use the formula

[tex]A = \pi r^2[/tex]

Substituting the value we found for r, we get:

[tex]A = \pi (5/\pi )^2\\A = \pi (25/\pi^2)\\A = 25/\pi[/tex]

This is approximately equal to 7.9577, which is not equal to 100. Therefore, the statement "A circle with a circumference of 10 has an area of 100" is false.

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Answer:

Step-by-step explanation:

1: Quadratic

2: Exponential

3. None

By answering the presented question, we may conclude that As a result, proportionality the loan debt after 90 days is roughly $1713.17.

Proportionate relationships are those that have the same ratio every time. For example, the average number of apples per tree defines how many trees are in an orchard and how many apples are in an apple harvest. Proportional refers to a linear relationship between two numbers or variables in mathematics. When the first quantity doubles, the second quantity doubles as well. When one of the variables decreases to 1/100th of its previous value, the other falls as well. When two quantities are proportional, it means that as one rises, the other rises as well, and the ratio between the two remains constant at all levels. The diameter and circumference of a circle serve as an example.

Let B represent the loan balance at any moment t. (t).

k * B d(B(t))/dt (t)

where k is a proportionality constant.

This differential equation may be solved by separating the variables.

k * dt = d(B(t))/B(t).

When both sides are combined, the following results:

B(t) ln(t) = k*t + C

where C is an integration constant.

ln(B(0)) = k*0 + C

ln(1600) = C

So,

[tex]k*t + ln(B(t)) = ln(B(t)) (1600)\\= k*1 + ln(B(1)) (1600)\\ln(1920) = k + ln (1600)\\k = ln(1920) - ln (1600)\\k = ln(1.2) (1.2)[/tex]

Therefore,

[tex]ln(B(t)) = ln(1600) * 1.2 * t\\1600 * 1.2t = ln(B(t))\\B(t) = 1600 * 1.2^t\\[/tex]

To calculate the loan balance after 90 days, enter t=90/365:

[tex]B(90/365) = 1600 * 1.2^(90/365)\\B(90/365) ≈ $1713.17\\[/tex]

As a result, the loan debt after 90 days is roughly $1713.17.

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The number of medals did the United States win is 97 using the equation x + (x + 9) = 185.

Let x be the number of medals Russia won in the 2000 Summer Olympics. Then, since the United States won 9 more medals than Russia, the number of medals the United States won is x + 9.

Together, they won 185 medals, so we can write the equation:

x + (x + 9) = 185

Simplifying the left side, we get:

2x + 9 = 185

Subtracting 9 from both sides:

2x = 176

Dividing both sides by 2:

x = 88

So Russia won 88 medals, and the United States won 88 + 9 = 97 medals.

Therefore, the United States won 97 medals in the 2000 Summer Olympics.

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The answer of the given question based on the right triangle the answer is, the right triangle has side measures of WX ≈ 16.8, XY ≈ 28.5, and XZ ≈ 32.5, and angle measures of m∠W = 33°.

A angle is geometric figure formed by two rays that share common endpoint called  vertex. The two rays are called  sides or legs of  angle, and angle is typically denoted by vertex letter, with small arc between  two sides to indicate angle.

Let's start by labeling the sides and angles:

   /|

  / |

 /  |

WX/___| Z

Y

WX is opposite to angle W

XY is adjacent to angle W

XZ is the hypotenuse of the triangle

Using the given information, we know that:

m∠W = 33°

XZ = WX / sin(W) (using the sine ratio)

We can solve for XZ as follows:

XZ = WX / sin(W)

XZ = XY / cos(W) (using the complementary angle of 90° - 33° = 57°)

We don't know the length of XY, but we can find it using the Pythagorean theorem:

XY² + WX² = XZ²

XY² + WX² = (WX / sin(W))²

XY² = (WX / sin(W))² - WX²

XY = sqrt((WX / sin(W))² - WX²)

Plugging in the given values, we get:

XY = sqrt((WX / sin(33°))² - WX²)

With WX rounded to the nearest tenth, we get:

WX = 16.8

XY = 28.5

XZ = 32.5

Therefore, the right triangle has side measures of WX ≈ 16.8, XY ≈ 28.5, and XZ ≈ 32.5, and angle measures of m∠W = 33°.

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The expression - x - 3x + 5x + 10x - 4x + 4x simplifies to x.

If we group the like terms, we have:

(-1-3+5+10-4+4)x

An expressiοn in math is a sentence with a minimum οf twο numbers οr variables and at least οne math οperatiοn. This math οperatiοn can be additiοn, subtractiοn, multiplicatiοn, οr divisiοn.

Simplifying the terms inside the parentheses, we have:

1x

And simplifying further, we have the:

x

Therefore, the expression - x - 3x + 5x + 10x - 4x + 4x simplifies to x.

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The answer of the given question based on the rhombus ABCD finding PD the answer is  PD = -5.

In geometry, diagonal is  straight line segment that connects two non-adjacent vertices of polygon. A polygon is any two-dimensional shape with straight sides, like   triangle, rectangle, square, or any other n-sided figure.

In a rectangle,  diagonal is  line segment that connects two opposite corners of rectangle.

Let's label the points as shown in the diagram:

   A

   / \

  /   \

 /     \

D-------B

   P

We know that DB = 2x - 4 and PB = 2x - 9. We need to find PD.

Since  diagonals of  rhombus bisect with each other, we have:

PD = PB - BD

Substituting the given values, we get:

PD = (2x - 9) - (2x - 4)

Simplifying, we get:

PD = 2x - 9 - 2x + 4

PD = -5

Therefore, PD = -5.

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Complete question is

In rhombus ABCD, if DB = 2x - 4 and PB = 2x - 9, find PD.

the diagram is also provided in the answer. you can refer there.