Consider this polynomial, where a is an unknown real number.

correctly/incorrectly
and why

Consider This Polynomial, Where A Is An Unknown Real Number.correctly/incorrectlyand Why

Answers

Answer 1

9514 1404 393

Answer:

incorrectly; used 1 in the division instead of -1incorrectly; evaluated higher powers of -1 incorrectly

Step-by-step explanation:

The result each should have obtained is ...

  a +10 = 17

  a = 7

Braulio's mistake was in using 1 as his divisor instead of -1. His bottom row should have been 1, 4, a-4, 1-a, a +10.

Zahra's mistake was improperly evaluating higher powers of -1. Her evaluation should have been 1 -5 +a +3 +11 = a +10.


Related Questions

Hi I need help with part c please and thank you so much if you can do so

Answers

For the hole in one pythagores theorem would work because a right angled triangle eill be formed and hole in one would be the hypotenuse which can be found using the theorem.

b²+p² = h²

Answered by Gauthmath must click thanks and mark brainliest

a car drives at 45 km/h for 75 minutes how far does the car travel

Answers

Answer:

56.25km

Step-by-step explanation:

75min = 5/4 h

distance = speed * time = 45 * 5/4 = 56.25

what is 3/16 of 200 written as a percentage?​

Answers

Answer:

Step-by-step explanation:

3/16 = 0.1875

As a % this is 18.75%

18.75/100 * 200 = 37.5

I'm not sure from the question, exactly what you want. 18.75% of 200 is one possibility.

3/16 of 200 as a percentage is 3750%

The question can be represented as:

[tex]\frac{3}{16} * 200[/tex]

Rewrite as:

[tex]\frac{3}{16} * 200 =\frac{3* 200}{16}[/tex]

Multiply the numerator

[tex]\frac{3}{16} * 200 =\frac{600}{16}[/tex]

[tex]\frac{3}{16} * 200 =37.5[/tex]

Multiply by 100% to represent it as a percentage

[tex]\frac{3}{16} * 200 =37.5 * 100\%[/tex]

[tex]\frac{3}{16} * 200 =3750\%[/tex]

Read more at:

https://brainly.com/question/19994306

Write the following as an expression: How much water do I need to add to l liters of pure alcohol to obtain a solution of 45% alcohol? The answer is an EXPRESSION, not an actual answer!! WILL MARK BRAINLIST!!!

Answers

Answer: [tex]\dfrac{11}{9}I[/tex]

Step-by-step explanation:

Given

There is [tex]l[/tex] liter of pure alcohol

Suppose [tex]x[/tex] liters of water is added

After addition of water, alcohol becomes 45% in concentration

[tex]\Rightarrow \dfrac{l}{x+l}=45\%\\\\\Rightarrow \dfrac{I}{0.45}=x+I\\\\\Rightarrow \dfrac{20}{9}I-I=x\\\\\Rightarrow x=\dfrac{11}{9}I[/tex]

Thus,  [tex]\dfrac{11}{9}I[/tex] of water is added to the pure alcohol.

X+y=11
Graphing which function

Answers

Answer:

Step-by-step explanation:

slopee -1

y-intercept (0,11)

 x   y

0    11

1     10


What is the distance between (-6, 8) and (-3, 9)?

Answers

Answer:

√10

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√[-3 - (-6)] + (9 - 8)²

√(3)² + (1)²

√9 + 1

√10

Martha, Lee, Nancy, Paul, and Armando have all been invited to a dinner party. They arrive randomly, and each person arrives at a different time.

a. In how many ways can they arrive?

b. In how many ways can Martha arrive first and Armando last?

c. Find the probability that Martha will arrive first and Armando last.

Show your work

Answers

Answer:

a) 120

b) 6

c) 1/20

Step-by-step explanation:

a) 5! = 120

b) (5 - 2)! = 6

c) 6/120 = 1/20

You can work a total of no more than 35 hours each week at your two jobs. Housecleaning pays $7 per hour and your sales job pays $9 per hour. You need to earn at least $314 each week to pay your bills. Write a system of inequalities that shows the various numbers of hours you can work at each job.​

Answers

Answer: 7x + 9y >_ (more or equal) 314

X + Y <_ ( less or equal) 35

Step-by-step explanation:

Answer:

h+s≤35 and 7h + 9s >_314

Step-by-step explanation:

need help asap
what is the value of f(3) in the function below​

Answers

Answer:

Step-by-step explanation:

The given function is  :  

Here , x= independent variable where we place the input value and f(x) = dependent variable where we get the output value.

Now , when we put x= 3 , we get

That means , the value of f(3) in the given function is 8.

Hence, the correct answer is B=8.

Given that x= 3, all u need to do is plug in 3 in place of x. So that would give us 2 to the power 3 or
2*2*2=8
8 is the answer

Help please!!!! Im really stuck.

Answers

Answer: 275 adults and 130 children

Step-by-step explanation:

First, find the value of one variable by rearranging a equation:

[tex]a+c=405\\c=405-a[/tex]

Substitute it into the other equation and solve for a:

[tex]12a+5c=3950\\12a+5(405-a)=3950\\12a+2025-5a=3950\\12a-5a=3950-2025\\7a=1925\\a=\frac{1925}{7} =275[/tex]

Use the a-value to find b by substituting it into the rearranged equation:

[tex]c=405-a=405-275=130[/tex]

Therefore, the answer would be:

[tex]\left \{ {{a=275} \atop {c=130}} \right.[/tex]

Bridgette bought 1 pack of white T-shirts and 5 packs of blue T-shirts for her basketball team. The white T-shirts come in packs of 2, and the blue T-shirts come in packs of 6. How many T-shirts did Bridgette buy in all?

Answers

Answer:  32

Work Shown:

1 pack of white = 2 shirts = A

1 pack of blue = 6 shirts

5 packs of blue = 5*6 = 30 shirts = B

A+B = 2 white shirts + 30 blue shirts = 32 shirts total

Answer:

32 T-shirts in total

Step-by-step explanation:

1 white has 2

1 blue has 6

1*2=2 white T

5*6=30  blue T

30+2=32

Solve.
x² + 5x – 2=0

Answers

Answer:

1

Use the quadratic formula

=

±

2

4

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

2

+

5

2

=

0

x^{2}+5x-2=0

x2+5x−2=0

=

1

a={\color{#c92786}{1}}

a=1

=

5

b={\color{#e8710a}{5}}

b=5

=

2

c={\color{#129eaf}{-2}}

c=−2

=

5

±

5

2

4

1

(

2

)

2

1

Step-by-step explanation:

this should help

Solve the equation for X
by finding A B and c
of the quadratic then applying the quadratic formula.

I hope this helps !!

Becca tried to evaluate the expression
45−(8×3+15

Answers

Answer:

Step-by-step explanation:

45 - (8 x 3 + 15)

45 - (24 + 15)  ---> do parentheses first

45 - ( 39 )

45 -  39

6

The value of the expression Becca should get after simplification is 6.

Given is an expression 45 - (8 × 3 + 15), Becca is trying to solve the same,

To evaluate the expression 45 - (8 × 3 + 15), Becca should follow the order of operations, which is often remembered using the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction):

First, calculate the value inside the parentheses: 8 × 3 + 15

= 24 + 15

= 39.

Now, substitute this value back into the original expression: 45 - 39.

Finally, perform the subtraction: 45 - 39 = 6.

So, the value of the expression is 6.

Learn more about expression click;

https://brainly.com/question/34132400

#SPJ3

Regression and Correlation are two of the most often used and abused tools in research.

a. True
b. False

Answers

Regression and Correlation are two of the most often used and abused tools in research.

A.True

Answer:

it is true

Step-by-step explanation:

WILL MARK BRAINLIEST PLEASE SHOW WORK!

Answers

Step-by-step explanation:

4. the area of semi circle R =

3²/5² × 75π = 9/25 × 75π = 27π cm²

5. the ratio of their areas = 1²:7² = 1:49

A parallelogram is made up of a rectangle with a base of 12 centimeters (cm) and a height of 5 cm, and two triangles, each with a base of 2 cm and height of 5 cm. Jeremy calculates the area of the parallelogram by multiplying the base and height of the rectangle to get 60 cm2.
Is Jeremy's answer correct? Why or why not?

Select the option that correctly answers both questions.

No, he forgot to multiply by 12 when calculating the area of the rectangle.

Yes, he correctly calculated the area of the parallelogram as b⋅h.

No, he forgot to add the area of the triangles to the area of the rectangle.

Yes, he correctly calculated the area of the parallelogram as 12bh.

Answers

No, he forgot to add the area of the triangles to the area of the rectangle.

It is said that Jeremy thought he solved for the area of the whole parallelogram correctly by multiplying the base and height of the rectangle, which is just a part of the whole parallelogram.

Jeremy’s answer is incomplete, he only calculated the area of the triangle as the answer.

This is because one way of finding an area of a parallelogram is dividing the shape into a rectangle with a triangle on each side.

The real area of the parallelogram is 70 cm^2
(with areas of each triangles added)

With that being said, the formula of a parallelogram that is said is:
A = bh
Which means a height perpendicular to the base of the whole paralleogram.

The ratio of the number of boys to that of girls in a school is 4:3. If the number of girls in the school is 162, find the number of boys in it. Then find the ratio of the number of girls to the total number of students in the school.​

Answers

Answer:

total number of boys in skool is 216

And

ratio of girls to boys is a 3:4

Step-by-step explanation:

let total no. of boys be X

ACCORDING TO QUESTION

ratio of boys to girls = 4:3

total number of girls = 162

now

4/3=X/162

or, 4×162= 3x

or, 4×162/3= X

hence

X = 216

therefore total number of boys is 216

and

ratio of girls to boys is =162/216

=3/4

=3:4

Instructions: Solve the following equation for the variable given.
on
1/4 (4x - 4) = -2(6x + 7)

Solving Linear Equation

Answers

Answer:

x = -1

Step-by-step explanation:

1/4 (4x - 4) = -2(6x + 7)

1x - 1 = -12x - 14

13x = -13

x = -1

Find the lengths the missing side

Answers

Answer:

Short leg = x

Longer leg = 12

Hypotenuse = y

Short leg = 4√3

longer leg = 12

Hypotenuse = 8√3

Answered by GAUTHMATH

father of economics

Answers

I’m going to assume you meant who is the father of economics

Answer: Adam Smith

Rewrite the polynomial in the form ax+by+c and then identify the values of a, b, and c.

x -- 1 -- 2y

Answers

Answer:

a=1, b=-2,c=-1

Step-by-step explanation:

1*(x)+(-2)*y+(-1)*1. a=1, b=-2,c=-1

what is symmetrical line​

Answers

Answer:

assuming youre asking for line of symmetry, it's a line that cuts a shape exactly in half.  

for example, a square has 4 lines of symmetry

Fiona invested $1000 at 7% compounded continuously. At the same time, Maria invested $1100 at 7% compounded daily. How long will it take for their investments to be equal in value? Assume there are 365 days in every year.

Answers

9514 1404 393

Answer:

  14,201 years

Step-by-step explanation:

The two compound interest formulas are ...

  A = P·e^(rt) . . . . . continuous compounding at rate r for t years

  A = P·(1 +r/365)^(365t) . . . . . daily compounding at rate r for t years

We went the amounts to be equal:

  1000·e^(0.07t) = 1100·(1+0.07/365)^(365t)

Dividing by 1000(1 +0.07/365)^(365t), we have ...

  ((e^0.07)/(1+0.07/365)^365)^t = 1.1

The base of the exponential on the left is ...

 ( e^0.07)/(1+0.07/365)^365 ≈ 1.00000671149321522

Taking logs, we have ...

  t×ln(1.00000671149321522) = ln(1.1)

  t = ln(1.1)/ln(1.00000671149321522) ≈ 0.09531018/(6.7114704·10^-6)

  t ≈ 14,201.09 . . . . . years

It will take about 14,201 years for the investments to be equal.

_____

Additional comment

The investment value at that time will be about $5.269·10^434. (That's a larger number than anything countable in the known universe, including energy quanta.)

These calculations are beyond the ability of many calculators, so might need to be carefully rewritten if the calculator only keeps 10 significant digits, or only manages exponents less than 100.

This shows that daily compounding is very close in effect to continuous compounding. It would take almost 150 years to make a difference of 0.1% in value.

The total amount of time university students in the United States spend sleeping grooming, eating and drinking, and traveling is about Average weekday time use for full-time college and university students in the US Sleeping 36.2% Leisure and sports 17.19% 3.3% 4.2% Grooming 13.8% 5.8% Eating and drinking Educational activities 10.0% 9.696 Traveling Other Work and related activities​

Answers

Answer:

yes

Step-by-step explanation:

The total amount of time university students in the United States spend sleeping, eating and drinking, and doing leisure and sports is about: Average weekday time used for full-time college and university students in the US Sleeping 36.2% Leisure and sports 17.1% 3.3% Grooming 4.2% Eating and drinking 13.8% 5.8% Educational activities 9.6% Traveling 10.0% Other Work and related activities A A 1/3 of their total time 3/5 of their total time C) 1/2 of their total time 3/4 of their total time

How many hours of sleep does a typical college student get on a weekday?

"Our data was consistent with what researchers have found in academic studies — that students are in bed, on average, seven to eight hours per weeknight," says Brian Wilt, Jawbone's head of data science and analytics.

How much time does the average college student spend sleeping?

On average, college students get a whopping six hours of sleep a night according to a study by the University of Georgia. Lack of sleep can take a toll on your mental health, cause a reduction in cognitive performance and affect your memory capacity!

Learn more about the average college student spend sleeping at

https://brainly.com/question/14448167

#SPJ2

What's the dependent variable shown in the table?


A)

The amount of water given to the plant

B)

The color of the flowers

C)

The number of flowers on the plant

D)

The speed at which the plant grows

Answers

Answer:

The number of flowers on the plant

Step-by-step explanation:

Answer:

C: Number of flowers on the plant

Step-by-step explanation:

i got it right on my test

Need it done ASAP please help

Answers

Answer:

[tex]M_{st} = (\frac{-2+4}{2}, \frac{-4+6}{2})[/tex]  

[tex]M_{st}=(\frac{2}{2}, \frac{2}{2} )[/tex]

[tex]M_{st}=(1, 1)[/tex]

[tex]M_{cd}=(\frac{-6+4}{2} , \frac{10-8}{2} )[/tex]

[tex]M_{cd}=(\frac{-2}{2} , \frac{2}{2} )[/tex]

[tex]M_{cd}=(-1, 1)[/tex]

Bryce grew 3 1/2 inches each year for the past 4 years. How many inches total has Bryce grown in the past 4 years?​

Answers

Answer:

14

Step-by-step explanation:

3 1/2 multiply by 4 equals 14

Cons on the main shown on the graph over which interval is the value of the exponential function greater than
the value of the quale Action?
2513
113
O 038
Se

Answers

9514 1404 393

Answer:

  -0.58 < x ≤ 2

Step-by-step explanation:

The exponential function is greater on the interval of approximately (-0.58, 1).

  about -0.58 < x < 1

what function represents exponential decay?

Answers

Answer:

There are two types of exponential functions: exponential growth and exponential decay. In the function f (x) = bx when b > 1, the function represents exponential growth. In the function f (x) = bx when 0 < b < 1, the function represents exponential decay.

Step-by-step explanation:

The graph is that of a fourth-degree polynomial function. Which of the following correctly shows three factors of the function? Image included, please help!

Answers

C.

Observe that the roots of polynomial are [tex]-3,2,5[/tex]

We have a polynomial in a factored form,

[tex](x+3)(x-2)(x-5)[/tex]

If you substitute x for any of [tex]-3,2,5[/tex] the product will always equal to zero that is these numbers are roots of polynomial.

Hope this helps :)

Other Questions
present what you know about language functions and give example for illustration Please help!Will mark brainliest!! How do interest groups & political parties shape American politics? synonym of immaculate is what Write an equation that represents the line.Use exact numbers. 11Select the correct answer.Which expression is equivalent to the given expression?In(2e/x)O A. In 2 In xOB. 1 + In 2 - In xOc. In 2 + In xOD. In 1 + In 2 - InResetNext The organisms native to an area will impact the types of soil found in that area.Please select the best answer from the choices providedT FHELP ASAP What is the biological impact of minimum catch sizes on a population of fish?a. The population comes to be dominated by smaller, slower-growing individuals.b. Older, less productive adults are removed, improving the population's health.It applies a selective pressure for larger, faster growing fish.d. The fish in the population produce more and healthier eggs to compensate.C.Please select the best answer from the choices provided OBOD solve using identities I really need help again. find the value of trigonometric ratio what is the algebraic nature of the function f(x)= x2 -6X+5 1) What does the semicircular canal do ??Please give short and simple answer rose says the quantity of four dollars is a terminating decimal. Sharon says it is an integer.Do you agree witheither of them Jill, Kevin's supervisor, asked for a sales update today. Jill is too busy to go back and forth between the different store locations. How can Kevin give her an update more effectively? O a) Call with a quick update O b) Text a detailed OC) Book a one-hour meeting for tomorrow tomorrow morning d) Send a detailed the legs of a 45 45 90 triangle have a length of 8 units what is the length of the hypotenous Janice has been invited to appear on a home improvement show for the remodel of her summerhouse in Maine. Janice asks Mary to wallpaper her house in anticipation of the home improvement, and requests expensive custom wallpaper and a very intricate design application, for which the wallpaper would cost $5000, plus labor. Mary, excited for a very large job for her solo business, orders the intricate wallpaper and blocks off her calendar for the amount of time it will take to complete the job. After the paper has been ordered, Mary asks some friends to be available to complete the job in time for the show. Janice is informed that she will not be on the show and notifies Mary that she will not need the wallpaper. a. Does Mary have a case for re-imbursement?b. Under what legal theory might she prevail and what are her damages, if any?c. What ethical theories might be applicable? Plzzz helppp due at 7:30 PLEASE HELP ME !!!! How many solutions does the system of equations below have?y = x - 33y-3x = -9A. Exactly 1 solutionB. At least 1 solutionC. More than 1 solutionD. No solution Please answer:Joanna bakes a cake in the shape of a cylinder. The cake is 10 inches in diameter and 4.5 inches tall. She wants to put frosting on the entire cake that is not resting on the tray. How many square inches of frosting will she need?