Write a function that represents the balance after t years.

$3500 deposit that earns 9.2% annual interest compounded quarterly

y=?

Answers

Answer 1

Answer: 3500(1.023)4t

Step-by-step explanation:(4t is to the power

Answer 2

The function represents the balance after t years if $3500 deposit earns 9.2% annual interest compounded quarterly is  \(y = 3500 \times 1.023^{4t}\).

What is interest?

When the loan is given to you, then some amount is charged to you for the principal amount and that is called interest.

Given:

$3500 deposit that earns 9.2% annual interest compounded quarterly,

Calculate the amount after t years as shown below,

Amount = \(p(1 + r/400)^{4t}\)

Plug the values as shown below,

y = 3500(1 + 9.2 / 400)⁴ⁿ

y = 3500 (1 + 0.023)⁴ⁿ

y = 3500 × 1.023⁴ⁿ

Thus, the function is \(y = 3500 \times 1.023^{4t}\).

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Related Questions

If a building acquired the beginning of the year at a cost of 2,200,000 has an estimated residual value of 400,000 and a estimated useful life of 20 years determine the following a. the depreciable cost b. The straight- line rate c.the annual straight-line depreciation

Answers

The depreciable cost,

$1,800,000

The straight-line rate,

5%

The annual straight-line depreciation,

90,000

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

If a building acquired the beginning of the year at a cost of 2,200,000 has an estimated residual value of 400,000 and an estimated useful life of 20 years.

The depreciable cost,

= cost - residual value

= 2,200,000 - 400,000

= $1,800,000

The straight-line rate,

=100/20

= 5%

The annual straight-line depreciation,

= 1,800,000 x 5/100

= 90,000

Therefore, all the required values are given above.

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B. What is each piece measurement if the angle is cut into 9 equal
lengths? Kerf width is 0.125.

B. What is each piece measurement if the angle is cut into 9 equallengths? Kerf width is 0.125.

Answers

Each piece Measurement of an angle of 120 degrees cut into nine equal lengths with a kerf width of 0.125 would be 14.4583 degrees.

When a particular angle is cut into nine equal parts, the measure of each piece needs to be calculated.

Therefore, it is essential to first calculate the total angle measure and then divide it by the number of parts into which it is being cut.

What is an Angle?

An angle is a geometrical shape that consists of two rays sharing a common endpoint. The common endpoint is known as the vertex, and the two rays are known as the arms of the angle. An angle can be measured in degrees, radians, or gradians. Degrees are the most commonly used unit of measuring angles.How to Calculate Each Piece Measurement of an Angle if Cut into 9 Equal Lengths

To determine each piece measurement of an angle if cut into nine equal lengths, we will need to carry out the following steps:

Step 1: Calculate the total angle measure Suppose the angle being cut into nine equal lengths is an obtuse angle measuring 120 degrees. In that case, the total angle measure will be 120 degrees.

Step 2: Divide the total angle measure by the number of parts into which it is being cut.120 degrees ÷ 9 = 13.3333 degrees

Step 3: Add the kerf width to the piece measurements.0.125 x 9 = 1.125 degrees13.3333 + 1.125 = 14.4583 degrees

Therefore, each piece measurement of an angle of 120 degrees cut into nine equal lengths with a kerf width of 0.125 would be 14.4583 degrees.

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\sqrt[4]{2}=2^{\frac{1}{4}}

Answers

Answer:

\( \sqrt[4]{2} = 2 ^{ \frac{1}{4} } = 1.189207\)

Answer:

True: Both sides are equal

Step-by-step explanation:

1. \(\sqrt[4]{2}=2^{\frac{1}{4}}\)  

2. \(2^\frac{1}{4}=2^\frac{1}{4}\)

3. \(\frac{1}{4} = \frac{1}{4}\)  

They are Equal, So it true

So there are infinitely many solutions.

PLEASE HELP!!!
Solve the following word problem. The air temperature at 9 a.m. is −5.8 degrees Celsius. The air temperature at noon is −1.6 degrees Celsius. What is the change in the temperature during these three hours? Write and solve an equation to show your answer. Then explain what your answer means

Answers

The equation to show the change in temperature between 9 a.m. and noon is given as d = x - y.

What is an equation?

An equation contains two mathematical expressions that state that they are equal or equivalent.

We use the equation mark (=) to show that two expressions possess equality.

Air temperature at 9 a.m., y  -5.8 degrees Celsius

Air temperature at noon, x = -1.6 degrees Celsius

Change in temperature, d = 4.2 degrees Celsius (-1.6 - -5.8)

The equation to show the change is d = x - y, where d is the change in temperature, x is the final temperature, and y is the initial temperature.

Thus, based on the equation, the temperature increased by 4.2 degrees Celsium from the earlier -5.8 degrees Celsius to result in a final temperature of -1.6 degrees Celsius at noon.

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The longest amount of time employees can work under Option A or Option B is 20 weeks. After employees

work 20 weeks, they can either quit or keep making the same amount they made during Week 20. If an

employee plans on quitting after 20 weeks, which payment option gives the greatest total income? Explain.

after the 6th week on the table, the pattern continues


The table and payment per week is below!

The longest amount of time employees can work under Option A or Option B is 20 weeks. After employeeswork

Answers

Answer:

Option A

Step-by-step explanation:

Option A is an arithmetic sequence.

Each week, the salary goes up by a fixed $50.

To verify this, subtract any two consecutive weeks' salaries.

For example: $250 - $200 = $50; $350 - $300 = $50, etc.

The common difference in 50.

We have an arithmetic sequence with 20 terms. The first term is $200. We need to find the sum of the 20 terms.

The sum of an arithmetic sequence is given by the formula:

\( S_n = \dfrac{n}{2} \times [2a_1 + (n - 1)d] \)

S_n = sum of first n terms

n = number of terms = 20

a_1 = first term = 200

d = common difference = 50

\( S_{20} = \dfrac{20}{2} \times [2(200) + (20 - 1)(50)] \)

\( S_{20} = 10 \times [400 + 19(50)] \)

\( S_{20} = 10 \times [400 + 19(50)] \)

\( S_{20} = 13500 \)

Option A gives a total of $13,500 for the first 20 weeks.

Option B is a geometric sequence in which the salary goes up by 10% each week. To verify this, divide any salary by the previous week's salary.

For example: $220/$200 = 1.10; $266.20/$242 = 1.10; in each case, each salary is 1.1 times the previous week's salary which means a 10% increase. The common ratio of the geometric sequence is 1.1.

We need the formula for the sum of the first n terms of a geometric sequence.

\( S_n = \dfrac{a_1(1 - r^n)}{1 - r} \)

\( S_{20} = \dfrac{200(1 - 1.1^{20})}{1 - 1.1} \)

\( S_{20} = \dfrac{200(1 - 6.7274999)}{-0.1} \)

\( S_{20} = 11455 \)

Option B gives a total of $11,455 for the first 20 weeks.

Answer: Option A

What will be the new coordinate of vertex B if the triangle is dilated with a center at the origin by a scale factor of 1/3

Answers

You must observe the distances from the center of the dilation at point A to the other points B, C and D. The dilation image will be 1/3 of each of these distances. AB = 6, so A'B' = 2. AD = 9, so A'D' = 3.

Can I get brainllest

The midpoint of overline PQ is M = (- 2, 1) . One endpoint is P = (- 5, - 1) Find the coordinates of the other endpoint , Q.

Answers

Answer;

The coordiantes of the point Q is;

\((1,3)\)

Explanation;

Here, we want to get the coordinates of the other endpoint

Mathematically, we can find the midpoint of two endpoints using the formula below;

\((x,y)\text{ = (}\frac{(x_1+x_2)}{2},\frac{(y_1+y_2)}{2})\)

The notation 1 and 2 represents the coordinates of the two end points

Now, by replacing the values given in the question, we have it that;

(x,y) is the coordinate of the point m which is (-2,1)

Now the first end point has the coordinates (-5,-1)

The second endpoint Q has the endpoint (x2,y2) which we want to calculate

We proceed to make the substitutions as follows;

\((-2,1)\text{ =}\frac{(-5+x_2)}{2},\frac{(-1+y_2)}{2}\)

We proceed to susbtitute the individual branches as follows;

\(\begin{gathered} -2\text{ = }\frac{-5+x_2}{2} \\ 2(-2)=-5+x_2 \\ -4=-5+x_2 \\ x_2=-4+5 \\ x_2\text{ = 1} \end{gathered}\)

Finally, we have;

\(\begin{gathered} 1=\frac{-1+y_2}{2} \\ 2(1)=-1+y_2 \\ 2+1=y_2 \\ y_2\text{ = }3 \end{gathered}\)

A steel pipe 50 cm long has an outside diameter of 2 cm and an inside diameter of 1.8 cm. If the density of the steel is 7.8 grams per cm3, what is
the mass of the pipe to the nearest gram?

Answers

Answer:

the volume is 50x1.8x2

v=180cm³

therefore, density is mass/volume

Step-by-step explanation:

mass =density x volume

mass= 7.8 x 180cm³

mass= 1,404grams

The mass of the pipe to the nearest gram mass= 1,404grams.

We have given that,

A steel pipe 50 cm long has an outside diameter of 2 cm and an inside diameter of 1.8 cm. If the density of the steel is 7.8 grams per cm^3

The volume is 50x1.8x2

v=180cm^3

Therefore, density is mass/volume

What is the formula for mass?

mass =density x volume

mass= 7.8 x 180cm^3

mass= 1,404grams

Therefore, The mass of the pipe to the nearest gram mass= 1,404grams.

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This simple question does not require any statistical calculations, only statistical knowledge. The showerhead heights at a men’s athletic locker room were designed to be 72 inches which is well above the mean height of 69.5”. The heights of the athletes are normally distributed. From the choices listed below, which is more likely to be true: a, b or c?



a.The mean height for a randomly selected sample of 20 players is more than 72 inches.

b.The height of one randomly selected player is more than 72 inches.

c.Both a and b are equally likely.
Why? (Justify your answer with a short answer.)

Answers

That both a and b are equally likely, is also not true since the Probability of option b is higher than that of option a.

Option b is more likely to be true. This is because the given information states that the showerhead heights were designed to be 72 inches, which is well above the mean height of 69.5 inches. Therefore, it is reasonable to assume that the majority of the players' heights are below 72 inches. Since the heights of the athletes are normally distributed, the probability of selecting a player at random with a height above 72 inches is relatively low. On the other hand, option a suggests that the mean height of a sample of 20 players is more than 72 inches, which is less likely than option b. Option c, which suggests that both a and b are equally likely, is also not true since the probability of option b is higher than that of option a.

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NEED HELP ASAP WILL GIVE BRAINLIEST

NEED HELP ASAP WILL GIVE BRAINLIEST

Answers

Answer:

The answer is option A.

Step-by-step explanation:

If both equations are graphed side by side, will produce same figure.

Population of Arkansas is currently 3 million people. If it grew by just 5%, what would the new population be?

Answers

Please mark me brainliest. please

Population of Arkansas is currently 3 million people. If it grew by just 5%, what would the new population be?

Answer : 3,150,000 people

Step-by-step explanation:

3,000,000 + 5% = 3,150,000

Use the limit definition of the derivative to find the slope of the tangent line to the curve f(x) = 7x ^ 2 + 2x + 3 at x = 1

Answers

Answer:

16

Step-by-step explanation:

Step 1: Write down the function \(f(x)=7x^2+2x+3.\)

Step 2: Write down the limit definition of the derivative:
\(f'(x)= lim_{h0} \frac{f(x+h)=f(x)}{h} .\)

Step 3: Substitute the function \(f(x)\) into the limit definition:
\(f'(x)=lim_{h0} \frac{(7(x+h)^2+2(x+h)+3)-(7x^2+2x+3)}{h}.\)

Step 4: Simplify the expression inside the limit:
\(f'(x)=lim_{h0}\frac{7x^2+14xh+7h^2+2x+2h+3-7x^2-2x-3}{h} .\)

Step 5: Combine like terms:
\(f'(x)=lim_{h0} \frac{14xh+7h^2+2h}{h} .\)

Step 6: Factor out an \(h\) from the numerator:
\(f'(x)=lim_{h0} \frac{h(14x+7h+2h}{h} .\)

Step 7: Cancel out the \(h\) in the numerator and denominator:
\(f'(x)=lim_{h0}(14x+7h+2).\)

Step 8: Evaluate the limit as \(h\) approaches 0:
\(f'(x)=14x+2.\)

Step 9: Substitute \(x=1\) into the derivative:
\(f'(1)=14(1)+2=14+2=16.\)

The Slope of the tangent line to the curve \(f(x)=7x^2+2x+3\) at \(x=1\) would be \(16.\)

Find the mean absolute deviation (MAD) of the data in the pictograph below.

Find the mean absolute deviation (MAD) of the data in the pictograph below.

Answers

Answer:

its 1

Step-by-step explanation:

x⁵+x³-5 is divided by x-2

Answers

The Polynomial x⁵ + x³ - 5 is divided by x - 2, the quotient is x⁴ + 3x³ + 6x² + 12x + 24, and the remainder is 48.

The quotient and remainder when the polynomial x⁵ + x³ - 5 is divided by x - 2, we can use polynomial long division. Here's the step-by-step process:

1. Write the dividend (x⁵ + x³ - 5) and the divisor (x - 2).

   x - 2 | x⁵ + x³ + 0x² + 0x - 5

2. Divide the first term of the dividend (x⁵) by the first term of the divisor (x) to get x⁴. Write x⁴ above the line. x⁴

   x - 2 | x⁵ + x³ + 0x² + 0x - 5

3. Multiply the divisor (x - 2) by the quotient term (x⁴) to get x⁵ - 2x⁴. Write this under the dividend and subtract it.  x⁴

  x - 2 | x⁵ + x³ + 0x² + 0x - 5

 - (x⁵ - 2x⁴)

3x⁴ + 0x³ + 0x² + 0x - 5

4. Bring down the next term (-5) from the dividend.

x⁴ + 3x³

x - 2 | x⁵ + x³ + 0x² + 0x - 5

- (x⁵ - 2x⁴)

3x⁴ + 0x³ + 0x² + 0x - 5

5. Divide the first term of the new dividend (3x⁴) by the first term of the divisor (x) to get 3x³. Write 3x³ above the line.

 x⁴ + 3x³

   x - 2 | x⁵ + x³ + 0x² + 0x - 5

 - (x⁵ - 2x⁴)

3x⁴ + 0x³ + 0x² + 0x - 5

6. Multiply the divisor (x - 2) by the new quotient term (3x³) to get 3x⁴ - 6x³. Write this under the new dividend and subtract it.

x⁴ + 3x³

x - 2 | x⁵ + x³ + 0x² + 0x - 5

- (x⁵ - 2x⁴)

3x⁴ + 0x³ + 0x² + 0x - 5

- (3x⁴ - 6x³)

6x³ + 0x² + 0x - 5

7. Repeat steps 4-6 until you have subtracted all terms.

x⁴ + 3x³ + 6x² + 12x + 24

x - 2 | x⁵ + x³ + 0x² + 0x - 5

- (x⁵ - 2x⁴)

3x⁴ + 0x³ + 0x² + 0x - 5

- (3x⁴ - 6x³)

6x³ + 0x² + 0x - 5

- (6x³ - 12x²)

12x² + 0x + 0

 - (12x² - 24x)

 24x + 0

- (24x - 48)

 48

8. The quotient is x⁴ + 3x³ + 6x² + 12x + 24, and the remainder is 48.

Therefore, when the polynomial x⁵ + x³ - 5 is divided by x - 2, the quotient is x⁴ + 3x³ + 6x² + 12x + 24, and the remainder is 48.

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Please Help!! Solve For X

Please Help!! Solve For X

Answers

The value of x in the given figure is 8.

In the given figure there are two lines which are parallel.

We have to find the value of x.

In the straight line the sum of angles is 180 degrees.

8x+1+115=180

8x+116=180

Subtract 116 from both sides:

8x=180-116

8x=64

Divide both sides by 8:

x=64/8

x=8

Hence, the value of x in the given figure is 8.

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Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of 75 and a standard deviation of 9. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals. (a) Find the 41st percentile of the scores. (b) Find the 74th percentile of the scores. (c) The instructor wants to give an A to the students whose scores were in the top 8% of the class. What is the minimum score needed to get an A

Answers

Solution :

Using the TI-84 PLUS calculator

a). Area : 0.41

μ = 75

σ = 9

InvNorm(0.41,75,9)

= 72.95209525

Therefore, the 41st percentile of the scores is 72.95209525

b).  Area : 0.74

μ = 75

σ = 9

InvNorm(0.74,75,9)

= 80.79010862

Therefore, the 74st percentile of the scores is 80.79010862

c). 8%

So,  Area : 0.92

μ = 75

σ = 9

InvNorm(0.92,75,9)

= 87.64564405

Therefore, X =  80.79010862

What is the base in the expression 4 superscript 5?
A)4 B)5 C)9 D)20

Answers

Answer:

A)4

Step-by-step explanation:

Expression 4 superscript pt 5=4^5

Answer:

A

Step-by-step explanation:

Mickey and Minnie Mouse are purchasing a new home. Their annual property taxes are estimated to be $5,467, and their homeowner's insurance policy has an annual cost of $1,440. They must also purchase flood insurance, since they live in below sea level, at an additional cost of $1,262 per year. How much will they be required to put into their escrow account each month to cover these costs?​

Answers

Result:

Mickey and Minnie Mouse will need to put $680.75 into their escrow account each month to cover the property taxes, homeowner's insurance, and flood insurance costs.

What is an escrow account?

An escrow account is like a savings account that is managed by a mortgage servicer. The portion deposited into an escrow account usually covers estimated property taxes and your homeowners and mortgage insurance premiums.

To calculate the monthly amount Mickey and Minnie Mouse need to put into their escrow account for property taxes, homeowner's insurance, and flood insurance, we will first add up the total annual costs for these expenses:

Property taxes: $5,467

Homeowner's insurance: $1,440

Flood insurance: $1,262

Total annual costs = $5,467 + $1,440 + $1,262 = $8,169

Next, we divide the total annual costs by 12 to get the monthly escrow amount:

$8,169 / 12 = $680.75

Therefore, $680.75 is the amount they will need to put into their escrow account each month.

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Find m/ABC.
A. 81°
B. 86°
C. 47°
D. 49.5°
99°
B
D
94%

Find m/ABC.A. 81B. 86C. 47D. 49.599BD94%

Answers

The value of m ∠ABC=86° ,because of the cyclic quadrilaterals.

Hence, Option (B) is correct.

Since, We know that,

A cyclic quadrilateral is a four-sided polygon whose vertices all lie on a common circle.

The opposite angles of a cyclic quadrilateral have a total of 180°.

Hence, We can formulate;

m ∠ABC +  m ∠ADC  = 180°

m ∠ABC + 94° = 180°

m ∠ABC = 180° - 94°

m ∠ABC = 86°

Similarly, one can find m∠DCB

m∠DAB +  m∠DCB  = 180°

99° + m∠DCB = 180°

m∠DCB = 180° - 99°

m∠DCB = 81°

Hence, m∠ABC = 86°

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Need help with this slope question ASAP

Need help with this slope question ASAP

Answers

Answer:

the slope is 3

Step-by-step explanation:

cause rise over run and its 6/2. the x intercept is 2 if thats helpful?

Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution.
-5x + y = -3
-10x + 2y = -6
infinitely many solutions
no solutions
one solution

Answers

This system of equations has infinitely many solutions.

What is Equation?

An equation is a mathematical statement that two expressions are equal. It can be written using numbers, symbols, and mathematical operations such as addition, subtraction, multiplication, and division. Equations can also be used to describe relationships between known values, like a line of best fit for data points. Equations are used in many areas of mathematics, such as geometry and calculus, to help solve problems or to describe physical phenomena.

This can be determined by looking at the coefficients of the variables. Since the coefficients of x in each equation are the same and the coefficients of y in each equation are different, this indicates that the equations are not equivalent and therefore, have infinitely many solutions.

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HURRY!!!!!!!!!!!!!!!

The table shows the proportional relationship between the number of tickets required per game at a carnival. Games 4 7 10 Tickets 20 35 50 Determine the constant of proportionality.

Correct answer will get brainiest

Answers

Answer:

Therefore, the constant of proportionality for the given proportional relationship is 5.

Step-by-step explanation:

To determine the constant of proportionality in the given proportional relationship, we can use the formula:

Constant of Proportionality = Tickets / Games

Let's plug in the values from the table:

For the first set of values (4 games and 20 tickets):

Constant of Proportionality = 20 / 4 = 5

For the second set of values (7 games and 35 tickets):

Constant of Proportionality = 35 / 7 = 5

For the third set of values (10 games and 50 tickets):

Constant of Proportionality = 50 / 10 = 5

In all three cases, the constant of proportionality is equal to 5.

Therefore, the constant of proportionality for the given proportional relationship is 5.

an internet service charges 20 dollars to initiate service the companythen charges 0.50 for each day of service complete the table

Answers

Step-by-step explanation:

Let a denote internet service charges and b denote daily service charge which are constants and x the number of days which is variable.

Let d be the number of days to find the total charges.

Since the month consists of at most 31 days

The total charges t can be expressed as t = a + b*x, where  x > 0 and

x <=31.

We are given that the internet service charges of 20 dollars

We are given that the daily service charges are 0.5 dollars

The days in the month are in the range of 1 to 31 (max).

Note, if x increases by 1 unit, then t is added by b.

Given values: a = $20; b= $0.5

Solution equation:

t = $20 + x*$0.5

What is constant?

A constant is a number that stands alone; occasionally, a, b, or c are used to denote a fixed number.

What is variable?

A variable is an alphanumeric character that represents a number or a numerical value; occasionally, x, y, or z are used to denote a variable.

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an internet service charges 20 dollars to initiate service the companythen charges 0.50 for each day

Let a denote internet service charges and b denote daily service charge which are constants and x the number of days which is variable.

Let d be the number of days to find the total charges.

Since the month consists of at most 31 days

The total charges t can be expressed as t = a + b*x, where  x > 0 and

x <=31.

We are given that the internet service charges of 20 dollars.

We are given that the daily service charges are 0.5 dollars.

The days in the month are in the range of 1 to 31 (max).

Note, if x increases by 1 unit, then t is added by b.

Given values: a = $20; b= $0.5.

Solution equation:

t = $20 + x*$0.5

What is constant?

A constant is a number that stands alone; occasionally, a, b, or c are used to denote a fixed number.

What is variable?

A variable is an alphanumeric character that represents a number or a numerical value; occasionally, x, y, or z are used to denote a variable.

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Round to the nearest hundredth 13.711309201

Answers

Answer: 13.71

Step-by-step explanation:

Hundredths is the second place

Answer:

13.71

Step-by-step explanation:

The hundredths place is the second decimal, and, since the decimal after that is a 1, you round down and get 13.71

A recipe calls for 12 cup of milk for every 34 cup of flour.

If Kenny wants to double the recipe, how many cups of flour will he need?

Answers

Answer:

68

Step-by-step explanation:

because she wants to double the recipe

so she will need 6 cups of milk

Which statement is true regarding the graphed functions?


f(0) = g(0)
f(-2) = g(-2)
f(0) = g(-2)
f(-2)=g(0)

Answers

F(2) =0 and G(-2) = 0 hope this helped

60 POINTS 3a − 2b + 5 when a = −4 and b = 3?

Answers

Answer:-18

Step-by-step explanation:

What is the area of this triangle? O 18 square units O 20 square units O 21 square units 024 square units​

What is the area of this triangle? O 18 square units O 20 square units O 21 square units 024 square units

Answers

The area of this triangle is 21 square units.

From the graph:

The length of the base = 4 + 3 units

= 7 units

The length of the height = 3 + 3

= 6 units

Area of the triangle = 1/2 b *h

= 1/2*7*6

= 1*42/2

= 42/2

= 21 square units.

Therefore the area of this triangle is 21 square units.

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Which data set has the same standard deviation as the data set {2,2,5,6,8}?

A. {3,4,4,7,7}
B.{5,6,5,6,5}
C.{3,3,6,7,9}
D.{4,4,5,5,5}

Answers

Answer:

C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

A campaign strategist wants to determine whether demographic shifts have caused a drop in allegiance to the Uniformian Party in Bowie County. Historically, around 62% of the county's registered voters have supported the Uniformians. In a survey of 196 registered voters, 57% indicated that they would vote for the Uniformians in the next election. Assuming a confidence level of 95% and conducting a one-sided hypothesis test, which of the following should the strategist do?

a. Accept the hypothesis that the proportion of Uniformian voters has not changed.
b. Accept the hypothesis that the proportion of Uniformian voters has decreased.
c. Conclude that the proportion of Uniformian voters is now between 56% and 62%.
d. There is not enough evidence to support the hypothesis that the proportion of Uniformian voters has decreased.

Answers

Answer:

d. There is not enough evidence to support the hypothesis that the proportion of Uniformian voters has decreased.

Step-by-step explanation:

This is a hypothesis test for a proportion.

The claim is that there is a significant drop in allegiance to the Uniformian Party in Bowie County.

Then, the null and alternative hypothesis are:

\(H_0: \pi=0.62\\\\H_a:\pi<0.62\)

The significance level is 0.05.

The sample has a size n=196.

The sample proportion is p=0.57.

The standard error of the proportion is:

\(\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.62*0.38}{196}}\\\\\\ \sigma_p=\sqrt{0.001202}=0.035\)

Then, we can calculate the z-statistic as:

\(z=\dfrac{p-\pi+0.5/n}{\sigma_p}=\dfrac{0.57-0.62+0.5/196}{0.035}=\dfrac{-0.047}{0.035}=-1.369\)

This test is a left-tailed test, so the P-value for this test is calculated as:

\(\text{P-value}=P(z<-1.369)=0.0855\)

As the P-value (0.0855) is greater than the significance level (0.05), the effect is  not significant.

The null hypothesis failed to be rejected.

There is not enough evidence to support the claim that there is a significant drop in allegiance to the Uniformian Party in Bowie County.

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