7. Find the product. 8. Find the product. 9. Find the product.

Therefore, a monthly payment of $168.62 must be made to pay off the $3,500 balance on the credit card in two years.

Percent is a way of expressing a number as a fraction of 100. The symbol for percent is "%". Percentages are used in many different contexts, such as finance, economics, statistics, and everyday life.

Here,

To calculate the monthly payment required to pay off the $3,500 balance on a credit card that charges 16.5% interest, compounded monthly, in two years, we can use the formula for the present value of an annuity:

\(PMT = PV * r / (1 - (1 + r)^{-n})\)

where PMT is the monthly payment, PV is the present value of the loan, r is the monthly interest rate, and n is the total number of payments.

First, we need to convert the annual interest rate of 16.5% to a monthly interest rate:

r = 0.165 / 12

= 0.01375

Next, we need to calculate the total number of payments over two years:

n = 2 * 12

= 24

Now we can plug in the values into the formula:

\(PMT = 3500 * 0.01375 / (1 - (1 + 0.01375)^{-24}) = $168.62\)

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Answer:

r = 0 , 2

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

was I supposed to solve for R? If so here you go.

Answer:  x = 2

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

Explanation:

Refer to the diagram below.

I've added points D,E,F,G. This helps with labeling the segments and angles, and identifying the proper triangles (to see which are congruent pairs).

Triangle GEA is congruent to triangle GFA. We can prove this using the AAS congruence theorem. We have AG = AG as the pair of congruent sides, and the congruent pairs of angles are marked in the diagram (specifically the blue pairs of angles and the gray right angle markers)

Since triangle GEA is congruent to triangle GFA, this means the corresponding pieces segment GF and GE are the same length.

The diagram shows GF = 3x-4, so this means GE = 3x-4 as well.

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

Through similar steps, we can show that triangle GEC is congruent to triangle GDC. We also use AAS here as well.

The congruent triangles lead to GD = GE. So GD = 3x-4. The diagram shows that GD = 6x-10

Since GD is equal to both 3x-4 and 6x-10, this must mean the two expressions are equal.

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

Now let's solve for x

6x-10 = 3x-4

6x-3x = -4+10

3x = 6

x = 6/3

x = 2

Answer:

x=17

Step-by-step explanation:

Answer:

25.6

Step-by-step explanation:

find constant of variation ('k'):

y = kx

75 = 60k

k = 75/60 or 5/4

32 = 5/4x

cross-multiply:

5x = 128

x = 25.6

Step-by-step explanation: When solving by completing the square,

we cannot have a coefficient on the squared term.

So first divide both sides by 4 to get x² + 4x + 25/4 = 0.

Now subtract 25/4 from both sides and leave a space.

So we have x² + 4x ____ = -25/4 ____.

The number that goes in that space is the number needed

to create a perfect square trinomial on the left side.

The question is, what is that number?

Well it comes from a formula.

The number that goes in that space comes from

half the coefficient of the middle term squared.

So that's half of 4 squared or 2 squared which is 4.

So we add 4 to both sides.

On the left, we will get a binomial squared

which will use x and half the coefficient of the middle term.

So we have (x + 2)².

On the right, -25/4 + 16/4 is -9/4.

So we have (x + 2)² = -9/4.

Notice that when take the square root of both sides,

we have the square root of a negative which is illegal.

So we say our answer is ∅.

We have to pay extra postage for two of the four envelopes.

Let l be the length and h be the height of the envelope, both measured in inches. We want to count the number of envelopes for which\(\frac{l}{h} < 1.3$ or $\frac{l}{h} > 2.5.$\)

We can rewrite the first inequality as l < 1.3h and the second inequality as l > 2.5h.

Now let's consider each of the four envelopes one by one:

For the first envelope, l = 5 and h = 3. We have \($\frac{l}{h} = \frac{5}{3} \approx 1.67,$\)which is greater than 1.3 and less than 2.5, so we don't have to pay extra postage for this envelope.

For the second envelope, l = 7 and h = 2. We have\(\frac{l}{h} = \frac{7}{2} = 3.5,$\) which is greater than 2.5, so we have to pay extra postage for this envelope.

For the third envelope, l = 4 and h = 4. We have \($\frac{l}{h} = 1,$\) which is between 1.3 and 2.5, so we don't have to pay extra postage for this envelope.

For the fourth envelope, l = 6 and h = 5. We have \(\frac{l}{h} = \frac{6}{5} = 1.2,$\)which is less than 1.3, so we have to pay extra postage for this envelope.

Therefore, we have to pay extra postage for two of the four envelopes.

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Answer:

64 times larger

Step-by-step explanation:

8^3=512

2^3=8

512/8=64

For a study to allow conclusions about causality, researchers must randomly assign participants to conditions and manipulate the independent variable.

For a study to establish causality, there are several key requirements that researchers must adhere to:

Randomly assign participants to conditions:

Random assignment is crucial to ensure that participants have an equal chance of being assigned to different experimental conditions.

By randomly assigning participants, researchers can minimize the potential confounding effects of individual differences and distribute them evenly across groups.

This helps establish a causal link between the independent variable (manipulated condition) and the dependent variable (outcome).

Manipulate the independent variable:

Researchers must deliberately manipulate the independent variable, which is the factor believed to have a causal effect on the dependent variable.

By manipulating the independent variable and observing the resulting changes in the dependent variable, researchers can infer causality.

The manipulation allows for comparisons between different conditions, enabling researchers to draw conclusions about the causal relationship between variables.

Gather a random sample of participants:

It is important to collect a random sample of participants from the target population.

Random sampling helps ensure that the sample is representative of the larger population, increasing the generalizability of the study's findings.

A random sample reduces the risk of sampling bias, where the characteristics of the sample deviate significantly from those of the population.

Control extraneous variables:

To establish causality, researchers must control for extraneous variables, factors other than the independent variable that could influence the dependent variable.

This can be achieved through techniques like random assignment, matching participants on relevant characteristics, or using statistical methods such as regression analysis to account for these variables.

It is worth noting that making sure participants are all of the same socio-economic status is not a requirement for establishing causality.

In fact, including participants with diverse socio-economic backgrounds can enhance the external validity and generalizability of the study's findings.

The focus should be on minimizing confounding variables and establishing a clear causal relationship between the independent and dependent variables.

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Answer:

4 avocados

Step-by-step explanation:

$3.74/$0.89 = 4.2, but you can't have 4.2 avocados so you round down to 4

If A is a symmetric matrix, then A³ is also a symmetric matrix.

To prove this, we can use the definition of a symmetric matrix, which is a matrix that is equal to its transpose. In other words, if A is a symmetric matrix, then A = A^T.

Now, let's look at A³:

A³ = A * A * A

We can replace each A with A^T, since they are equal:

A³ = A^T * A^T * A^T

Now, we can use the property that the transpose of a product of matrices is equal to the product of their transposes in reverse order:

A³ = (A^T * A^T * A^T)^T

A³ = (A^T)^T * (A^T)^T * (A^T)^T

Since the transpose of a transpose is the original matrix, we can simplify:

A³ = A * A * A

Therefore, A³ is also a symmetric matrix.

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Percent of the original is the radius of the reduced artery is 0.070 times the original radius.

Given that,

A blood clot has lowered the flow rate in an artery to 8.5% of its usual value, and the average pressure difference has increased by 20.5%.

p1 = 8.5 % ,

p2 = 20.5 %

The equation is using here is From Poiseuille's equation

Q = \Delta p \pi r4 / 8 \eta L

now

Q1 = \Delta p1\pi r14 / 8 \eta L

and

Q2 = \Delta p2\pi r24 / 8 \eta L

Q1 = \Delta p1\pi r14 / 8 \eta L / Q2 = \Delta p2\pi r24 / 8 \eta L

Q1 / Q2 = \Delta p1 ro4 / \Delta p2 r24

r24 = ( 0.085 Q1 / Q1 ) ( \Delta p1 / \Delta p1 + 0.20 \Delta p1 ) ro4

r24 = 0.085 X ( 1 / ( 1 + 0.20 ) ro4  

r2 = 0.070 ro  

As a result, the shortened artery's radius is 0.070 times its original radius, or percent of the original.

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Answer:

P(A n B) = 1/4

Step-by-step explanation:

We know that:

P(A U B) = P(A) + P(B) - P(A n B)

Substituting the given values, we get:

3/8 = 1/2 + 3/4 - P(A n B)

Simplifying, we get:

P(A n B) = 1/4

Answer: P ( A n B ) = 7/8

Step-by-step explanation:  P ( A U B ) = P(A) + P(B) - P( A n B )

                                                         3/8   =   1/2  + 3/4 - P( A n B )

                                                         3/8   =   5/4 - P ( A n B )

                                               P ( A n B )  =  5/4 - 3/8

                                               P ( A n B )  =   7/8

Answer:7

Step-by-step explanation:

Answer:

You find the volume of a cylinder with the formula of π × r² × h

Answer:  A

Step-by-step explanation:

When multiplying: Numbers multiply with numbers and for the x's, add the exponents

If there is no exponent, you can assume an imaginary 1 is the exponent

2x⁴ (3x³ − x² + 4x)

= 6x⁷ -2x⁶ + 8x⁵

Answer:

A. \(6x^{7} - 2x^{6} + 8x^{5}\)

Label the parts of the expression:

Outside the parentheses = \(2x^{4}\)

Inside parentheses = \(3x^{3} -x^{2} + 4x\)

You must distribute what is outside the parentheses with all the values inside the parentheses. Distribution means that you multiply what is outside the parentheses with each value inside the parentheses

\(2x^{4}\) × \(3x^{3}\)

\(2x^{4}\) × \(-x^{2}\)

\(2x^{4}\) × \(4x\)

First, multiply the whole numbers of each value before the variables

2 x 3 = 6

2 x -1 = -2

2 x 4 = 8

Now you have:

6\(x^{4}x^{3}\)

-2\(x^{4}x^{2}\)

8\(x^{4} x\)

When you multiply exponents together, you multiply the bases as normal and add the exponents together

\(6x^{4+3}\) = \(6x^{7}\)

\(-2x^{4+2}\) = \(-2x^{6}\)

\(8x^{4+1}\) = \(8x^{5}\)

Put the numbers given above into an expression:

\(6x^{7} -2x^{6} +8x^{5}\)

distribution

variable

like exponents

The acids among the options listed below are

Any material that when dissolved in water has an acidic taste, can alter the color of some indicators (such as reddening blue litmus paper), can react with some metals (such as iron) to release hydrogen, can combine with bases to produce salts, and can accelerate some chemical reactions are classified as acids

When an acid is dissolved in water, hydrogen ions are produced; as a result, the solution's hydrogen ion concentration rises. Due to the creation of heat, the reaction is very exothermic.

Hence the substances that produces Hydrogen ions are acids

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The area of the field is:

A = (x + 20)y

The length of fence needed is:

x + y + x + 20

(remember that 20 ft are not needed because the building, and y ft are not needed because the river)

We have 1000 ft of fencing, then:

1000 = x + y + x + 20

1000 - 20 = 2x + y

980 = 2x + y

Isolating y from the preceding equation:

y = 980 - 2x

Substituting this into the area equation:

A = (x + 20)(980 - 2x)

Distributing:

At the maximum, the derivative of A with respect to x is zero, then:

Recalling the equation of y and substituting this result:

y = 980 - 2x

y = 980 - 2*235

y = 510

The dimensions are:

length: 255 ft (on the side without the building)

width: 510 ft

Answer:

See below

Step-by-step explanation:

Long side = x

         Other long side = x - 20

short side = y  

Area enclosed = xy

x  +   x -20   + y    = 1000    or y = 1020 -2x    <=====sub into first equation

area = x * ( 1020-2x) =  -2x^2 + 1020x  

         this is a dome shaped parabola  

           max will occur at x = -b/2a = - 1020/ (2 * -2) = 255 ft

  then y =   1020 -2x = 510 ft

(area = xy = 130 050 ft^2 )

Answer:  

∠A= 60

Step-by-step explanation:  

SinA = 13/15  

SinA = 0.866  

A = inverse sin (0.866)  

A = 59.997

A = 60

The y-intercept of the given exponential function would be represents the initial value of the investment is $500 which is the correct option (B).

An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.

It is a relation of the form y = aˣ  in mathematics, where x is the independent variable

The given exponential function f(x) = 500(1.03)ˣ

Here x would be represented growth of the savings plan per year

To determine the y-intercept of the function

We have to substitute the value of x = 0 in the given function,

⇒ f(x) = 500(1.03)⁰

⇒ f(x) = 500(1)

⇒ f(x) = 500

Therefore, the y-intercept of the given exponential function would be represents the initial value of the investment is $500.

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(a) The time (in h) will the plane take to reach the city is 7.09 hours or 7.1 hours.

(b) The plane flies through a constant tailwind blowing at 53.5 km/h, the time (in h) will it take to reach the city is 3.58 hours or 3.6 hours.

(c) The plane flies through a constant crosswind blowing east at 53.5 km/h, the time (in h) will it take to reach the city is infinite.

(a) To find the time it will take for the plane to reach the city with a headwind, we need to first find the plane's ground speed. The ground speed is the speed of the plane relative to the ground. We can find the ground speed by subtracting the speed of the headwind from the plane's airspeed.

Ground speed = Airspeed - Headwind speed

Ground speed = 163 km/h - 53.5 km/h

Ground speed = 109.5 km/h

Now that we know the ground speed, we can use the formula:

Time = Distance ÷ Speed

Time = 776 km ÷ 109.5 km/h

Time = 7.09 hours or 7.1 hours

(b) To find the time it will take for the plane to reach the city with a tailwind, we need to first find the plane's ground speed. The ground speed is the speed of the plane relative to the ground. We can find the ground speed by adding the speed of the tailwind to the plane's airspeed.

Ground speed = Airspeed + Tailwind speed

Ground speed = 163 km/h + 53.5 km/h

Ground speed = 216.5 km/h

Now that we know the ground speed, we can use the formula:

Time = Distance ÷ Speed

Time = 776 km ÷ 216.5 km/h

Time = 3.58 hours or 3.6 hours

(c) To find the time it will take for the plane to reach the city with a crosswind, we need to first find the component of the crosswind that is perpendicular to the plane's direction of travel. This component will not affect how long it takes for the plane to reach its destination.

Component of crosswind = Crosswind speed × sin(angle between direction of travel and crosswind)

Component of crosswind = 53.5 km/h × sin(90°)

Component of crosswind = 53.5 km/h

Now we can find the ground speed of the plane relative to its direction of travel:

Ground speed = Airspeed × cos(angle between direction of travel and crosswind)

Ground speed = 163 km/h × cos(90°)

Ground speed = 0 km/h

Since the ground speed is 0 km/h, the plane will not make any progress towards its destination. Therefore, it will take an infinite amount of time to reach the city with a crosswind.

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Answer:

No

Step-by-step explanation:

Genius

Answer:

yes i belive.

Step-by-step explanation:

On solving the 3 variable equation you will get the answer x=6, y=1, and z=2. It is solved by elimination method.

What is elimination method?

The elimination method involves removing a variable from a system of linear equations by employing addition or subtraction along with multiplication or division of the variable coefficients.

Now, consider the first two equations.
-3x + 3y +2z = -11
3x + 5y - 5z = 13

Multiply the upper eqation with 5 and lower eqation with 2 to make coefficient of z equal.

-15x + 15y + 10z = -55
6x + 10y - 10z = 26

Add these two equations to eliminate z.

-9x + 25y = -29                   ... (1)

Now, consider second and third eqation from the the eqation given in the question.
3x + 5y - 5z = 13
5x - 6y - z = 22

Multiply the upper equation with 5 to make coefficient of z equal in both the equations.

3x + 5y - 5z = 13
25x - 30y - 5z = 110

Now, subtract the lower equation from the upper equation.
3x + 5y - 5z = 13
-25x + 30y + 5z = -110

To get the following equation:
-22x + 35y = -97                   ... (2)

Now, consider equation (1) and (2).
-9x + 25y = -29
-22x + 35y = -97

Multiply the upper equation with 35 and lower equation with 25.

-315x + 875y = -1015
-550x + 875y = -2425

Now, subtract these two equations to get the following equation:

235x = 1410
x = 6

Substitute the value of x in equation (1).

-9x + 25y = -29
-9 (6) + 25y = -29
25y = 25
y = 1

Now, substitute the value of x and y in following eqation:

-3x + 3y + 2z = -11
-3(6) + 3(1) + 2z = -11
-15 + 2z = -11
2z = 4
z =2

Hence, on solving the 3 variables equation, you will get the answer x=6, y=1, and z=2.

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Answer:

Your answer would be x = -240

Step-by-step explanation:

1. First do 2-12 to get a denominator of -10.

2. Multiply -10 on both sides to get x = 24 * -10

3. Solve 24 * - 10 to get x = -240

Answer: The correct answer for this question is $6.55

Step-by-step explanation:

Hope this helps

Answer:

28.75

Step-by-step explanation:

c = 2.97r is the equation that describes the proportional relationship between r, the number of reams purchased and c, the total cost

Two variables have a proportional relationship if all the ratios of the variables are equivalent

In order to write an equation that describes the proportional relationship r, the number of reams purchased and c, the total cost, we need to write a proportional equation using the variables:

c α r                  (Note: α is the proportion symbol)

c = kr

k = c/r

Where k is the constant of proportionality

As shown in the image, you can see that 4 reams cost $11.88 and 6 reams cost $17.82

k = c/r

k = 11.88/4 = 2.97 or 17.82/6 = 2.97

c = kr

c = 2.97r

Therefore, the equation that describes the proportional relationship between r, the number of reams purchased and c, the total cost is c = 2.97r. Enter c = 2.97r in the box

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Answer: 844344.55555

The missing dimension of the triangle is the height, which is 19 cm.

To find the missing dimension of the triangle, we can use the formula for the area of a triangle:

Area = (1/2) x base x height

We know that the area is 256.5 cm^2 and the base is 27 cm. Therefore, we can plug in these values into the formula and solve for the height:

256.5 = (1/2) x 27 x height

256.5 = 13.5 x height

height = 256.5 / 13.5

height = 19

Therefore, the missing dimension of the triangle is the height, which is 19 cm.

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Answer: yes it has a proportional relationship

Step-by-step explanation: Well yes it is proportional because it goes through the orgin and that is what it is if it goes through the orgin (0,0) it means it has a proportional relationship hope this helped:)

Answer:

\(\displaystyle =\frac{0.5\text{ ft}}{\text{day}}\)

The weed grows at a rate of 0.5 feet per day.

Step-by-step explanation:

The weed grows at a rate of 0.25 inches per hour.

And we want to convert this rate into feet per day.

We have that:

\(\displaystyle \frac{0.25\text{ in}}{\text{hr}}\)

We knowt that there are 12 inches in one foot.

And since we want to cancel the inches, we can write our conversion factor as ft / 12 in.

We also know that there are 24 hours in one day.

And since we want to cancel the hours, we can write our conversion factor as 24 hr / day.

Hence:

\(\displaystyle \frac{0.25\text{ in}}{\text{hr}}\cdot\frac{\text{ft}}{12\text{ in}}\cdot \frac{24\text{ hr}}{\text{day}}\)

Multiply and cancel common terms. So:

\(\displaystyle =\frac{0.5\text{ ft}}{\text{day}}\)

The weed grows at a rate of 0.5 feet per day.

Answer:

y=35+15x

if it has been rented for 3 hours,

y=35+15(3)

y=35+45

y=80

Step-by-step explanation: