Which of the following is a situation in which a quadratic equation cannot be
solved using the quadratic formula?
A. The right-hand side of the equation is 1.
B. The coefficient of the x-term is zero.
C. The degree of the polynomial expression is 2.
D. The coefficient of the x²-term is 1.

Answers

Answer 1

A situation in which a quadratic equation cannot be solved using the quadratic formula include the following: A. The right-hand side of the equation is 1.

What is a quadratic function?

Generally speaking, the standard form of a quadratic function is given by this mathematical expression;

ax² + bx + c = 0

Where:

a and b represents the coefficients of the first and second term in the quadratic function.c represents the constant.

Mathematically, the quadratic formula is modeled or represented by this mathematical expression:

[tex]x = \frac{-b\; \pm \;\sqrt{b^2 - 4ac}}{2a}[/tex]

In this context, we can reasonably infer and logically deduce that a quadratic function cannot be solved by using the quadratic formula when the coefficient of the x²-term is equal to zero (0) or when right-hand side of the equation is equal to one (1).

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Related Questions

Solve for x, please!! I really need help!!

Answers

Answer:

  x = 13

Step-by-step explanation:

You want to find x when one half of the diagonal of a parallelogram is 80 and the other half is 6x+2.

Diagonals

The diagonals of a parallelogram bisect each other, so point Y is the midpoint of each. That means ...

  VY = YX

  80 = 6x +2 . . . . . substitute the given values

  78 = 6x . . . . . . . subtract 2

  13 = x . . . . . . . . divide by 6

The value of x is 13.

NISSAN NP300 Special deal at 2007 price! R 221,180 (incl. VAT) Features • Dual airbags Power steering • Air-conditioning • Radio CD 3.3 Central locking Roof rack Roll bar and tonneau ber Side steps 3 year90 000km Service Plan • 3 year/100 000km Warranty NISSAN DataDot Anti theft Identification system NP300 Special Offers Months Interest Vehicle rate Price Deposit Click here to book your test drive *Residual Monthly instalments Total Payment R303 007 80 180 *Residual is an amount that must be paid at the end of the term after all the monthly payments have been made. 3.1 What is the cash price of the NISSAN NP 300? 3.2 If a person decide to pay for the vehicle in instalments, determine the number of years it will take to pay for the vehicle. Calculate the amount of the deposit needed. (2) (2) (3)​

Answers

3.1 The cash price of the NISSAN NP300 is R221,180 (incl. VAT).

3.2. it would take approximately 6.67 years to pay off the vehicle through instalments.

A deposit of approximately R22,282.70 would be needed if the financing plan requires a 10% deposit

How The answer was obtained

3.1 The cash price of the NISSAN NP300 is R221,180 (incl. VAT).

3.2 The given information does not explicitly state the number of years for the instalment plan, but it does provide the number of months (80) and the total payment amount (R303,007). Assuming a monthly payment plan, we can calculate the number of years as follows:

Number of years = Number of months / 12

Number of years = 80 / 12

Number of years ≈ 6.67 years

So it would take approximately 6.67 years to pay off the vehicle through instalments.

To calculate the deposit needed, we need to subtract the residual amount from the total cash price. From the given information, the total payment is R303,007 and the residual is R80,180, so:

Cash price = Total payment - Residual

Cash price = R303,007 - R80,180

Cash price = R222,827

So the cash price is slightly higher than the advertised price of R221,180, likely due to financing fees or interest. To determine the deposit needed, we can assume a specific percentage of the cash price that must be paid upfront. For example, if the deposit required is 10% of the cash price, then:

Deposit = 0.1 x Cash price

Deposit = 0.1 x R222,827

Deposit = R22,282.70

So a deposit of approximately R22,282.70 would be needed if the financing plan requires a 10% deposit.

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Examine the figure below, solve for a, round to the nearest whole number.
T
37
A
46⁰
28
D

Answers

The measure of a from the triangle ATD is 27 units. Therefore, the option B is the correct answer.

What is sine rule?

Law of Sines In trigonometry, the law of sines, sine law, sine formula, or sine rule is an equation relating the lengths of the sides of any triangle to the sines of its angles.

The formula for sine rule is sinA/a=sinB/b=sinC/c

From the given triangle ADT, ∠A=46°, ∠D=84°, AT=37, AD=t and TD=a.

By angle sum property,

∠A+∠D+∠T=180°

46°+84°+∠T=180°

130°+∠T=180°

∠T=50°

sin46°/a=sin84°/37=sin50°/t

0.7193/a=0.9945/37=0.7660/t

0.7193/a=0.9945/37

0.9945a=0.7193×37

0.9945a=26.6141

a=26.6141/0.9945

a=26.76

≈27

0.9945/37=0.7660/t

0.9945t=0.7660×37

0.9945t=28.342

t=28.342/0.9945

t=28.5

Therefore, the option B is the correct answer.

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HELP ASAP TIMED!! hurry

Answers

Answer:

The solution is C. (x+8)² + (y-11)² = 4

Step-by-step explanation:

(x - h)² + (y - k)² = r²

h = -8

k = 11

r = 2

(x + 8)² + (y - 11)² = 2²

(x + 8)² + (y - 11)² = 4

The answer is C. (x+8)² + (y-11)² = 4

determine an equation of the line drawn on the right. The shapes under the line are squares

Answers

Answer:57.6^3

thats t

What is the value of x in l-16l = x

Answers

Answer: |-16| =x

- (-16)= x

x = 16

Step-by-step explanation:

thank you

what is the slope of this line?

Answers

Answer:  -1/2

Step-by-step explanation: Down 1 over 2

Caleb observed the costumes that people wore to a costume party. The themes of the costumes and the number of people who wore them are shown in the following table.


Costume Theme Superhero Decades Scary TV & Movie Characters Animals Career
Number of People 128 96 72 52 24 28


A circle graph was drawn from the data in the table. What percentage would be on the Decades slice of the circle graph?
24%
26.7%
86.4%
96%

Answers

Answer:

  (a)  24%

Step-by-step explanation:

You want the percentage of people in the Decades slice of a circle graph if it represents 96 people. The other slices represent 128, 72, 52, 24, and 28 people.

Percent

The fraction in the second category is the ratio of the number in that category to the total number. The percent is the fraction multiplied by 100%.

  96/(128 +96 +72 +52 +24 +28) × 100% = 96/400 × 100% = 24%

The Decades slice of the circle would be 24%, choice A.

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SOMEONE PLEASE HELP...............

A plane that passes through three edges of a cube produces a triangular cross section as shown.

In two or more complete sentences, explain how the plane should pass through the cube in order to produce a cross section that is a regular hexagon.​

Answers

A cross section of a cube that is a regular hexagon can only be obtained if the plane passes through the cube at a 60-degree angle with respect to its edges. If a plane is placed in this manner, it will intersect six of the cube's edges at their midpoints, producing a regular hexagon cross section.

What are True Statements about a Plane that Pass Through a Cube?

The plane that passes through three edges of a cube to produce a regular hexagonal cross section must intersect the edges of the cube at 60 degree angles. This can be achieved if the plane is aligned with the diagonal of one of the faces of the cube, passing through the opposite vertices of the face.

This configuration of the plane will result in a regular hexagonal cross section of the cube as each vertex of the hexagon will correspond to one of the vertices of the cube, and each side of the hexagon will intersect two edges of the cube at 60 degree angles.

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a student gets paid to sell raffle tickets at the school basketball game. He earns $15 a day, plus an extra $0.25 for each raffle ticket he sells and $2 for each hour he works at the game. If d= days, r= raffle tickets, and h= hours, what function can he use to calculate his earnings?

Answers

The function can be used to calculate his earnings, 15d + 0.25r + 2h

What are functions?

Function is a relation between a set of inputs and a set of outputs which are permissible. In a function, for particular values of x we will get only a single image in y. It is denoted by f(x).

The function that the student can use to calculate his earnings is:

Earnings = 15d + 0.25r + 2h

where:

d = number of days worked

r = number of raffle tickets sold

h = number of hours worked at the game

The first term, 15d, represents the base pay of $15 per day worked.

The second term, 0.25r, represents the additional earnings of $0.25 per raffle ticket sold.

The third term, 2h, represents the additional earnings of $2 per hour worked at the game.

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Find the measure of the missing angles.

Answers

Answer:

F = 29

E= 151

D = 90

Step-by-step explanation:

For F:

The angle F is on a 180 degree angle with a degree next to it that is 151. To get the value F subtract 180-151 and you get 29.

For E: If F is 29 then the angle opposite of F is also 29. So again to find the measure of angle E, subtract 180 minus 29 and you get 151.

For D: D is also lying on a 180 degree angle. The angle next to it is 90. To get 180 add 90. 90 is the measure of angle d.

Answer:

d = 90°,e = 151°,f = 29°.

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

Angle d is linear pair with a right angle, therefore:

d = 180° - 90°d = 90°

Angle e is vertically opposite with 151° and therefore they are congruent:

e = 151°

Angle f is adjacent with 151° and forming a linear pair, therefore:

f = 180° - 151°f = 29°

Tony’s yearly pay is $8,320 rounded it is $8,300. Tony’s monthly car insurance 1/30 of his rounded yearly pay. Can he afford it. Explain why or why not

Answers

Tony m,ay or may not afford the car insurance

How to determine if Tony can afford the car insurance or not

From the question, we have the following parameters that can be used in our computation:

Yearly pay = $8300 (approximated)

Insurance = 1/30 of his rounded yearly pay

Using the above as a guide, we have the following:

Insurance= 1/30 * $8300

Evaluate

Insurance=  $276.7

Additional information about Tony's expenses and financial situation are needed to determine if he can afford the monthly car insurance or not.

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A mailer for posters is a triangular prism as shown. Determine the lateral surface area of the mailer. Draw a net if necessary.

Answers

The lateral surface area of the mailer is 234 In²

How to determine the lateral area

It is important to note that the formula for the lateral area of a triangular prism is expressed as;

A = (a + b+ c) h

Given that the parameters are enumerated as;

A is the lateral area of the triangular prisma is the base sideb is the base sidec is the base side

Now, substitute the values into the equation, we have;

Lateral area, A = (4 + 4 + 5) 18

Add the values

Lateral area = (13)(18)

Multiply the values

Lateral area = 234 In²

Hence, the value is 234 In²

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Which of the following angles is in the solution set of (see picture)

Answers

Angles are measured in degrees, with a full circle being 360°, and can be thought of as the amount of rotation that two straight lines or planes undergo.

What best define about angle?

The class definition of angle changed from a collection of ambiguous expressions, such as “the measurement of all the sides,” “the place where lines meet,” and “the corner of a shape or anything,” to

The equation below can be set up to calculate this.

Tan(angle) = 80 ft / (200 ft – 4 ft)

Solving for the angle, we get:

angle = tan-1(80 ft / 196 ft (ca. 60 m))

angle = tan-1(0.408163265)

Angle = 36.87 degrees (to the nearest hundredth of a degree).

Therefore, The law of tangents indicates that the angle between the subject's eyes and the top of the structure is roughly 36.87 degrees.

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what’s the equation of the line graphed below i’ll give you brainlist pls help

y=3/2x+4

y=2/3x+4

y=2/3x-6

y=3/2x-6

Answers

Answer:

y = 2/3x + 4

Step-by-step explanation:

y-intercept (b) is 4

Use points (-6, 0) and (0, 4) to find the slope (m) = (4-0)/(0--6) = 4/6 = 2/3

y = mx + b = 2/3x + 4

angie has reviewed grades of 88, 96, 92, and 93 on her last 4 tests. what grade will she need to receive

Answers

The grades that Angie need to receive in her next test so that her average is 92 is 91.

What is average?

The average is defined as the mean value a given data set. The formula to calculate the mean of a given data set is:

Average = Sum of the observations / Total number of observations

Assume the marks that Angie needs in her next test is represented by x.

Given that Angie has reviewed grades of 88, 96, 92, and 93 on her last 4 tests. Therefore, the grades she need to receive in her next test so her average is 92 is:

Average = Sum of the grades of all test / Total Number of test

92 = (88+96+92+93+x)/5

460 = 369+x

460 - 369 = x

x = 91

Hence, she needs 91 grades in her next test.

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The complete question is:

Angie has reviewed grades of 88, 96, 92, and 93 on her last 4 tests. what grade will she need to receive in her next test so that her average of all test is 92?

find the length of AB

Answers

Answer:

  8.5 cm

Step-by-step explanation:

You want to know the length of AB in rectangle ABCD with perimeter 26 cm if BC = PQ, QR = 10 cm, and the area of rectangle PQRS is 45 cm².

PQ

The area of rectangle PQRS is ...

  Area = PQ·QR

  45 cm² = PQ·(10 cm)

  PQ = (45 cm²)/(10 cm) = 4.5 cm

AB

The perimeter of rectangle ABCD is ...

  Perimeter = 2(AB +BC)

  26 cm = 2(AB +4.5 cm) . . . . . . . . BC = PQ = 4.5 cm

  13 cm = AB +4.5 cm . . . . . divide by 2

  8.5 cm = AB . . . . . . . . subtract 4.5 cm

The length of AB is 8.5 cm.

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Word Problems
1. The sum of 21 and three times a number is 60. What is that number?

2. Three times the difference between a number and three is equal to four times the number.
That is that number?

3. The sum of three consecutive integers is 48. Once you find them, answer this question: What
is > times the 3m as minus z times the 1St ?

4. Twice the smallest of three consecutive odd integers is seven more than the largest. What is the middle number?

5. The length of a rectangle is 3 cm more than the width. The perimeter is 22 cm. What is the
AREA of this rectangle? Note: A = (L)(W)

6. The perimeter of a triangle is 43 in. Side b is 3 times the length of side a. Side c is 1 more than twice the length of side a. What is the SUM of sides a and b?

Answers

In the word problems given above, the results are:

The number is 13.The number is 12.The consecutive integers are 15, 16, 17. The answer to the question is 19.The middle number is 9.The width is 4 cm and the length is 7 cm. The area of the rectangle is 28 sq cm.The sum of sides a and b is 28 in. (a=7 in, b= 21 in, c= 15 in)

What is the rationale for the above response?

1) Let's call the number we're looking for "x". According to the problem, "three times a number" is the same as 60 minus 21, which is 39. So we can write the equation:

3x + 21 = 60

Subtract 21 from both sides:

3x = 39

Divide by 3:

x = 13

Therefore, the number we're looking for is 13.

2)

Let's call the number we're looking for "x" again. According to the problem, "three times the difference between a number and three" is the same as "four times the number". So we can write the equation:

3(x - 3) = 4x

Simplify:

3x - 9 = 4x

Subtract 3x from both sides:

-9 = x

Therefore, the number we're looking for is -9.


3)

Let's call the first of the three consecutive integers "x". The next two would be x+1 and x+2. According to the problem, their sum is 48, so we can write the equation: x + (x+1) + (x+2) = 48

Simplify:

3x + 3 = 48

Subtract 3 from both sides:

3x = 45

Divide by 3:

x = 15

So the three consecutive integers are 15, 16, and 17. To answer the second part of the question, we can substitute these values into the given expression:

3m - z(1st) = 3(16) - 15(15) = 48 - 225 = -177


4)
Let's call the smallest of the three consecutive odd integers "x". The next two would be x+2 and x+4. According to the problem, twice the smallest is seven more than the largest, so we can write the equation:

2x = (x+4) + 7

Simplify:

2x = x + 11

Subtract x from both sides:

x = 11

So the three consecutive odd integers are 11, 13, and 15. The middle number is 13.


5)
Let's call the width of the rectangle "w". According to the problem, the length is 3 cm more than the width, so the length is w + 3. The perimeter is the sum of all four sides, which is:

P = 2w + 2(w + 3) = 4w + 6

We know that the perimeter is 22 cm, so we can write the equation:

4w + 6 = 22

Subtract 6 from both sides:

4w = 16

Divide by 4:

w = 4

So the width is 4 cm, and the length is 7 cm (since it's 3 cm more than the width). To find the area, we use the formula:

A = (L)(W) = (7)(4) = 28 square cm


6)

Let's denote the length of side a as x. Then we know that side b is 3 times the length of side a, or 3x, and side c is 1 more than twice the length of side a, or 2x+1.

Since the perimeter of the triangle is 43 inches, we can write the equation:

a + b + c = 43

Substituting in our expressions for b and c, we get:

x + 3x + 2x + 1 = 43

Simplifying the left-hand side, we get:

6x + 1 = 43

Subtracting 1 from both sides, we get:

6x = 42

Dividing both sides by 6, we get:

x = 7

thus:

a = 7

b= 3x = 21; na d

c = 2x + 1 = 14+1

c = 15

Thus the sum of sides a and b =
21 + 7
= 28

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Which of the following graphs matches the equation y=-4x+3

Answers

The equation of line is y = -4x + 3 , where the slope is m = -4

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

y = -4x + 3   be equation (1)

Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Substituting the values in the equation , we get

Slope m = -4

And , the y intercept is 3

The equation of line is plotted on the graph

Hence , the equation of line is y = -4x + 3

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The complete question is :

Which of the following graphs matches the equation y=-4x+3?

On a coordinate plane, a line goes through (0, 3)

On a coordinate plane, a line goes through (-2, 5) and (0, -3).

On a coordinate plane, a line goes through (0, 3) and (3, -1).

Un capitalista tiene dos capitales que se diferencian en S/. 221 000, el mayor de ellos lo impone al 20% anual y el menor al 16% anual, así al cabo de 3 años, el monto producido por el mayor es el doble de lo que produce el menor. Hallar la suma de los capitales.

Answers

The sum of the capitals would be $530400.

What is the formula to calculate the simple interest?

The formula to calculate the simple interest is -

I = PRT/100

Given is that a capitalist has two capitals that differ in $221,000. The largest of them imposes it at 20% per year and the smallest at 16% per year, so after 3 years, the amount produced by the largest is double what the smallest produces.

We can write the amount produced by largest as -

A = P(1 + rt)

A = 221000(1 + 0.2 x 3)

A = 221000 x 1.6

A = 353600

Amount generated by smallest -

a = 353600/2

a = 176800

Their sum would be -

A + a = 530400

Therefore, the sum of the capitals would be $530400.

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{Question in english -

A capitalist has two capitals that differ in S/. 221,000, the largest of them imposes it at 20% per year and the smallest at 16% per year, so after 3 years, the amount produced by the largest is double what the smallest produces. Find the sum of the capitals.}

keeps saying ive gotten it wrong yet its an easy question.. help me? (probability)

Answers

Answer:

Pole Vault, Discus, 200m, Long Jump

Step-by-step explanation:

Once putting them all as decimals can’t you just sort it our from there? From what I can see, your answers are incorrect, but they might have reset.

What is the completely factored form of 15a³bc³ – 6a²b²c³?

Answers

Answer:

The completely factored form of 15a³bc³ – 6a²b²c³ is 3a²bc³ × (5a - 2b).

Answer:

[tex]3a^{2} bc^{3} ( 5a - 2b)[/tex]

Step-by-step explanation:

[tex]15a^{3} bc^{3} - 6a^{2} b^{2} c^{3}[/tex]

[tex]3a^{2} bc^{3} ( 5a - 2b)[/tex]

If sin t= 7/9, and t is in quadrant I, find the exact value of sin(2t) , cos(2t) , and tan(2t) algebraically without solving for t .

Answers

Step-by-step explanation:

we know :

sin(2t) = 2×sin(t)×cos(t)

cos(2t) = cos²(t) – sin²(t) = 2×cos²(t) – 1 = 1 – 2×sin²(t)

tan(t) = sin(t)/cos(t)

tan(2t) = sin(2t)/cos(2t) = (2×tan(t))/(1 – tan²(t))

sin²(t) + cos²(t) = 1

as t is in quadrant I, 2t must be in either quadrant I or II.

sin(t) = 7/9

sin²(t) = (7/9)² = 49/81

cos²(t) = 1 - sin²(t) = 1 - 49/81 = 81/81 - 49/81 = 32/81

cos(t) = sqrt(32)/9

sin(2t) = 2×sin(t)×cos(t) = 2×7/9 × sqrt(32)/9 =

= 14×sqrt(32)/81 ≈ 0.98

cos(2t) = cos²(t) - sin²(t) = 32/81 - 49/81 = -17/81 ≈

≈ -0.21

tan(2t) = sin(2t)/cos(2t) =

= 14×sqrt(32)/81 / -17/81 =

= 14×sqrt(32)/81 × -81/17 =

= -14×sqrt(32)/17 ≈ -4.66

A middle school took all of its 6th grade students on a field trip to see a play at a theater that has 1700 seats. The students left 1037 seats vacant. What percentage of the seats in the theater were filled by the 6th graders on the trip?

Answers

Answer: 39%

Step-by-step explanation:

using calculator

1 seat = 0.058%
1700 - 1037 = 663 seats are taken.

0.058% x 663 seats = 39%

Line A (y = 3x + 1) is transformed into
Line B (y=2x-7). Which best describes
the new slope and y-intercept?
The slope is[ ? ],
and the line is shifted[ ? ]
steeper
flatter

Answers

Answer:

The new slope is 2,

New y-intercept is - 7

Line is flatter since slope has reduced

Step-by-step explanation:

Select the statement that correctly defines continuous and discrete quantitative variables. O A continuous variable has an infinite number of possible values, whereas a discrete variable always has a finite number of possible values. O A continuous variable can take on any real number value within some range, whereas a discrete variable come in countable units. O A continuous variable has a countable number of possible values, whereas a discrete variable has an uncountable number of possible values. O A continuous variable has numerical values, whereas a discrete variable serves to group items into categories.

Answers

The statement that correctly defines continuous and discrete quantitative variables is:

"A continuous variable can take on any real number value within some range, whereas a discrete variable come in countable units."

A variable is a quantity that may assume any one of a set of values.

This means that a continuous variable can take on any value within a certain range, which could be infinite, and that it can have decimal values. In contrast, a discrete variable has specific values that are separate and countable, such as integers or categories. For example, the height of individuals is a continuous variable, while the number of siblings someone has is a discrete variable.

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Quadrilateral ABCD has the following angle measures:

m∠A = ?°, m∠B = 97°, m∠C = 47°, m∠D = 90°

What is m∠A?

306°
234°
126°
54°

PLEASE HELP!

Answers

Answer:

126

Step-by-step explanation:

360-97-47-90=126

so 126

Answer: C) 126

Step-by-step explanation: first, you need to use this equation...

m∠A + m∠B + m∠C + m∠D = 360°

=> m∠A + 97° + 47° + 90° = 360°    add all of the numbers...

=> m∠A + 234° = 360°                  subtract both sides by 234

=> m∠A = 360°- 234°

=> m∠A = 126°

Hope you've understood...

Which of the following is not an exponential function?
A y = 5x
By = 5x - 1
© y=5x-1
Dy = 3.5x

Answers

The correct answer would be an option (C) y = 5x - 1 is not an exponential function.

What is an exponential function?

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.

As per option (A), we have

y = 5ˣ

This is an exponential function.

As per option (B), we have

y = 5ˣ - 1

This is an exponential function.

As per option (C), we have

y = 5x - 1

This is not an exponential function because it is a linear function.

As per option (D), we have

D. y = 3.5ˣ

This is an exponential function.

Thus, the correct answer would be an option (C) y = 5x - 1

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The complete question would be as:

Which of the following is not an exponential function?

A. y = 5ˣ

B. y = 5ˣ - 1

C. y = 5x - 1

D. y = 3.5ˣ

The 8 red markers in a box account for 4% of all markers in the box. How many markers are in the box?.

Answers

Answer: 32

Step-by-step explanation: divide 8 into 4/100

Kcf

Keep change flip

Keep the 4/100 change the division sign to multiplication then flip the 8 to 8/1 then just multiply across.

Suppose you bought ares company 4 years ago at a price of $63.00 per share sold it at $71.50 per share. How much money die you make? $37750 $382.50 $387.50 $392.50​

Answers

The amount you made per share is $8.50.

How to determine the amount you made

From the question, we have the following parameters that can be used in our computation:

Initial amount = $63.00

Final amount = $71.50

To calculate the profit made, we need to find the difference between the selling price and the buying price per share, and then multiply by the number of shares.

The difference in price per share is:

Difference = $71.50 - $63.00

Evaluate the difference

Difference = $8.50

Hence, the profit per share is $8.50.

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