Please help. Attached as an image

Please Help. Attached As An Image

Answers

Answer 1

Distance formula ds = v(dx² + dy²) s = ? v(1 + (dy/dx)²) dx ......... s = the arc length y = 171 - x²/45

chegg

someone solved it on this

https://youtu.be/UGjXlMVdZvc

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Related Questions

a) Out of all items sent for refurbishing, %40 had mechanical defects, %50 had electrical
defects, and %25 had both. Denoting  defectmechanicalahasitemanA  and
 defectmechanicalahasitemanB  . Fill the probabilities into the Venn diagram and
determine the quantities listed below.
(i)  AP [2 Marks]
(ii)  BAP  [1 Mark]
(iii)  BAP c 

Answers

i. P(A) = 0. 4

ii. P(AB) = 0. 9

iii. P(A∩B) =0. 25

How to determine the probability

From the information given,

Universal set = 40% + 50% + 25% = 0.40 + 0. 50 + 0. 25

A = Mechanical defects = 40%

B = Electrical defects = 50%

A∩B =25%

i. Probability of A , P(A)

= [tex]\frac{40}{100}[/tex]

= [tex]0. 4[/tex]

ii. Probability of B, P(AB)

= [tex]\frac{40}{100} + \frac{50}{100}[/tex]

= [tex]0. 4 + 0. 5[/tex]

= [tex]0. 9[/tex]

iii. Probability of A∩B entails the common factor between A and B

P(A∩B)  = [tex]\frac{25}{100}[/tex] = [tex]0. 25[/tex]

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how much must be deposited today to have $45,000 in 5 years with a quarterly compounding and an APR of 7.3%

Answers

Answer:

$31,341.81

Step-by-step explanation:

The compound amount equation is A = P(1 + r/n)^(nt), where P is the unknown principal, r is the annual interest rate, n is the number of compounding periods per year and t is the number of years.  We want to solve this for P:

       A

------------------- = P

(1 + r/n)^(nt)

Substituting the given numerical values;

     $45,000

 ---------------------------  =  P

   (1+0.073/4)^(4*5)

Using a calculator, we evaluate this expression, obtaining:  $31,341.81

I need answers please help me ​

Answers

Answer:

the ansqer is g(x) = 4^x-4 + 2

Nan is 20 year old. In 8 years,she will be twice as old as Clarisse.how old is clarisse now?

Answers

Answer:

6

Step-by-step explanation:

The equation for this problem would be c = (20 + 8) / 2 - 8. Add 20 and 8 to get 28, divide 28 by 2 to get 14, then subtract 8 to get 6.

where a=8a=8a, equals, 8 is a solution.

Answers

Answer:

a=0

Step-by-step explanation:

If this is what you are asking, and if I understand it correctly, 8*8=64 and not 8, but 8*0=0, therefore 0 is a solution.

Which of the following inequalities has no solutions?
Ox>3 and x < 2
Ox>3 and x < -2
Ox>3 and x < 2
Ox>3 and x > - 2

Answers

Answer:

A) x > 3 and x < 2 has no solutions

Step-by-step explanation:

Given inequalities below and we are looking for a pair with no solution.

Let's verify:

A) x > 3 and x < 2,

It has no solutions since the two inequalities have no common interval.

B) x > - 3 and x < - 2,

Its solution is -3 < x < - 2, the interval between two given endpoints.

C) x > - 3 and x < 2,

Similar to option B, the interval is between two endpoints:- 3 < x < 2

D) x > - 3 and x > - 2,

Its solution is x > - 2, the two inequalities cover almost same interval.


A recipe for a cake instructs you to bake it at 220° C for 45 minutes. How many degrees Fahrenheit is this?

Answers

This is an exercise on Thermometric scales.

We have as data:

T = 220 °CT =  °F ??

We apply the following formula:

[tex]\large\displaystyle\text{$\begin{gathered}\sf ^{\circ}F=\frac{9}{5}\ ^{\circ}C+32 \end{gathered}$}[/tex]

We substitute data in the formula:

[tex]\large\displaystyle\text{$\begin{gathered}\sf ^{\circ}F=\frac{9}{5}\times220+32 \end{gathered}$}[/tex]

First multiply 9 x 220, then the result of this division is divided by 5.

[tex]\large\displaystyle\text{$\begin{gathered}\sf =396+32 \ \ \to \ \ [Add] \end{gathered}$}[/tex]

[tex]\boxed{\large\displaystyle\text{$\begin{gathered}\sf =428 \ ^{\circ}F \end{gathered}$}}[/tex]

Therefore the cake recipe that should be baked at 220 °C for 45 minutes, on the Fahrenteir scale is 428 °F. Which indicates that it will be very hot.

During a recent poll with a travel agency, 24 customers were surveyed to determine the most popular cities in the US to visit.

The Venn diagram shows this information for the three most popular cities: New York, Los Angeles, and Orlando.

a. Which customers chose Orlando but not New York or Los Angeles?

b. How many customers chose New York and Los Angeles, but not Orlando ?

c. Which customers liked Orlando and New York only?

Answers

Based on the Venn diagram with results from the travel agency and the popular cities to visit, the following are true:

5 people.1 person.2 people.

What cities were the most popular in the U.S.?

The Venn diagram shows that the number of people who chose Orlando alone are 5 people namely: John, Michael, Angel, Andrew, and Sally.

Only one customer in the person of Jordan preferred New York and Los Angeles.

2 people liked Orlando and New York only and they were Luke and Robert.

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Evaluate 8xy+16y/5x

if x = 4 and y=-5.
A-42
B-7
C-23
D-12

Answers

Answer:

D

Step-by-step explanation:

substitute x = 4 , y = - 5 into the expression

[tex]\frac{8(4)(-5)+16(-5)}{5(4)}[/tex]

= [tex]\frac{-160-80}{20}[/tex]

= [tex]\frac{-240}{20}[/tex]

= - 12

Find the values of the variables in the parallelogram.
please help asap
tysm

Answers

Answer:

Step-by-step explanation:

The table gives a partial set of values of a polynomial h(x), which has a leading coefficient of 1.


x –3 –2 0 1 2
h(x) 0 –23 –12 0 0
If every x-intercept of h(x) is shown in the table and has a multiplicity of one, what is the equation of the polynomial function?
h(x) = x3 + 6x2 + 11x – 6
h(x) = x3 – 7x + 6
h(x) = x3 – 7x – 6
h(x) = x4 + 2x3 – 7x2 – 8x + 12

Answers

The equation of the polynomial function from the given table is; Option B: h(x) = x³ - 7x + 6

How to find the equation of a Polynomial?

From the given table, we see that the x-intercepts are;

(-3, 0), (1, 0) and (2, 0)

Now, we are told the the x-intercepts have a multiplicity of one which means they occur as roots only once. Thus, we can say that the roots in factor form are;

(x + 3), (x - 1), (x - 2)

Then, the polynomial will be;

h(x) = (x + 3) * (x - 1) * (x - 2)

h(x) = (x + 3)(x² - 3x + 2)

h(x) = x³ + 3x² - 3x² - 9x + 2x + 6

h(x) = x³ - 7x + 6

Thus, the equation of the polynomial function from the given table is; Option B: h(x) = x³ - 7x + 6

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The temperature was 56 degrees this morning, but dropped one degree per hour through the rest of the day. The equation is y=-x+56. You may usey=56-x . They are the same equation. Use x-values: 0, 5, and 10.

Answers

At x=0

y=56-0y=56°C

At x=5

y=56-5y=51°C

At x=10

y=56-10y=46°C

Find the Diameter of the Circle with the following equation. Round to the nearest tenth.

(x - 2)2 + (y + 6)2 = 35

Answers

The diameter of the circle is 11.8 units

How to determine the diameter of the circle?

The circle equation is given as:

(x - 2)^2 + (y + 6)^2 = 35

A circle equation is represented as:

(x - a)^2 + (y - b)^2 = r^2

Where

Diameter = 2r

By comparing both equations, we have

r^2 = 35

Take the square root of both sides

r = 5.9

Multiply by 2

2r = 11.8

Hence, the diameter of the circle is 11.8 units

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Find the equation of the line passing through the points (3,7) and (-2,5)

Answers

Answer:

The equation of the line passing through the points (3,7) and (-2,5) is y=x+29/5

Step-by-step explanation:

Greetings !

[tex]first \: find \: the \: slope \: m \\ m = \frac{(Y₂-Y₁)}{(X₂-X₁)} ..substitute \: vlues \\ m = \frac{(5 - 7)}{( - 2 - 3)} = \frac{ - 2}{ - 5} = \frac{2}{5} \\ y = mx + b \: to \: find \: equation \: of \: aline \\ between \: two \: poins and \: use \: \\ one \: of \: the \: two \: points \: lets \: take( - 2.5) \\ y = mx + b \\ 5 = \frac{ - 2}{5} ( - 2) + b \\ 5 = \frac{ - 4}{5} + b \\ 5 + { - 4}^{5} = b \\ \frac{25 + 4}{5} = b \\ b = \frac{29}{5} \\ finally \: equation \: of \: the \: line \: will \: be \\ y = \frac{2}{5} x + \frac{29}{5} [/tex]

1. The mean urine sodium concentrationof18caseswas120mmol/L with standard deviation of 15 mmo/L. assume the urine sodium is normally distributed, what is the 95%confidence interval within which the mean of the total population of such cases is expected lie

Answers

Using the t-distribution, the 95% confidence interval within which the mean of the total population of such cases is expected lie is:

(112.5, 127.5).

What is a t-distribution confidence interval?

The confidence interval is:

[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]

In which:

[tex]\overline{x}[/tex] is the sample mean.t is the critical value.n is the sample size.s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 18 - 1 = 17 df, is t = 2.1098.

The parameters for this problem are:

[tex]\overline{x} = 120, s = 15, n = 18[/tex].

Hence the bounds of the interval are:

[tex]\overline{x} - t\frac{s}{\sqrt{n}} = 120 - 2.1098\frac{15}{\sqrt{18}} = 112.5[/tex]

[tex]\overline{x} + t\frac{s}{\sqrt{n}} = 120 + 2.1098\frac{15}{\sqrt{18}} = 127.5[/tex]

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A building contractor is to dig a foundation 30 feet​ long, 12 feet​ wide, and 6 feet deep. The contractor pays ​$20 per load for trucks to remove the dirt. Each truck holds 8 cubic yards. What is the cost to the contractor to have all the dirt hauled​ away?

Answers

Answer:

$1800

Step-by-step explanation:

Volume of the foundation: 30*12*6 = 2160 cubic feet

we need to convert this into yards because a truckload is 8 cubic yards, 2160/3 = 720 cubic yd

One truckload is 8 cubic yards

# of truckloads needed: 720/8 = 90 truckloads

Cost: $20*90 = $1800

at a party 5/9 of the persons were men and the rest were women.if there was total 1260 persons find the number of women in the present​

Answers

SOLUTION :

let total people in the party be x i.e. 1260

then , number of men = 5/9 of x

= 5/9 of 1260 = 5 × 140 = 700 men

now ,

number of women = Total person - (number of total men)

= ( 1260 - 700 ) women

= 560 women

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Q.3 Write the factors of 28 in circle A and the factors of 32 in circle B. Write
heir common factors in the common part of both. Which is the biggest
common factor of 28 &32?

Answers

Answer: The largest common factor of 28 and 32 is 4.

Step-by-step explanation:

The factors of 28 are 1, 2, 4, 7, 14, 28

The factors of 32 are 1, 2, 4, 8, 16, 32

9 cos(sin¯¹(x)) = √81 – 81x²

Answers

The equation 9cos(sin¯¹(x)) = √(81 – 81x²) is true since L.H.S = R.H.S

To answer the question, we need to know what an equation is

What is an equation?

An equation is a mathematical expression that show the relationship between two variables.

Given 9cos(sin¯¹(x)) = √(81 – 81x²), we need to show L.H.S = R.H.S

So, L.H.S = 9cos(sin¯¹(x))

= 9[√{1 - sin²(sin¯¹(x)}] (Since sin²y + cos²y = 1 ⇒ cosy = √[1 - sin²y])

9[√{1 - sin²(sin¯¹(x)}] = √9² × √{1 - sin²(sin¯¹(x)}]

= √[9² × {1 - sin²(sin¯¹(x)}]

= √[81 × {1 - sin²(sin¯¹(x)}]

= √[81 × {1 - x²}]   (since sin²(sin¯¹(x) = [sin(sin¯¹(x)]² = x²)

= √(81 – 81x²)

= R.H.S

So, the equation 9cos(sin¯¹(x)) = √(81 – 81x²) is true since L.H.S = R.H.S

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Compute the monthly payments for each add-on interest loan. The amount of the loan is $1150. The annual interest rate is 6%. The term of the loan is 4 years

Answers

The monthly payments for each add-on interest loan is $29.7.

What is interest?

Simple interest is a way to figure out how much interest will be charged on a sum of money at a specific rate and for a specific duration of time. Contrary to compound interest, where we add the interest of one year's principal to the next year's principal to compute interest, the principal amount under simple interest remains constant.

According to the question,

Principal (P) = $1150

Rate of Interest(R) = 6%

Time (T) = 4 years

The interest is calculated as follows:

SI = (P × R × T)/100

SI = (1150 × 6 × 4)/100

SI=$ 276

Amount (A) = P + SI

A = $(1150 +276)

A = $1426

Monthly payment with interest = A/(4×12)

= $ 1426/48

= $29.7

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The table below shows some inputs and outputs of the invertible function f with domain all real numbers.

Answers

The values of f⁻¹(f(6.022)) is 6.022 and f⁻¹(10) + f(-6) is 4

How to evaluate the function?

As  a general rule;

f⁻¹(f(x)) = x

This means that:

f⁻¹(f(6.022)) = 6.022

Also, we have:

f⁻¹(10) + f(-6)


From the table of values, we have:

f⁻¹(10) = -6 and f(-6) =10

So, we have:

f⁻¹(10) + f(-6) = -6 + 10

Evaluate

f⁻¹(10) + f(-6) = 4

Hence, the values of f⁻¹(f(6.022)) is 6.022 and f⁻¹(10) + f(-6) is 4

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what is the value of x 44 inches and 55 inches triangle

Answers

Answer: I don't know what you are talking about, but if x is the area, then the answer is 1,210.

Step-by-step explanation: 44 x 55 x 1/2 = 1,210. The formula for the area of a triangle is 1/2 times length times height. Therefore, x = 1,210

Hope this helps.

Compute the monthly payments for each add-on interest loan. The amount of the loan is $1150. The annual interest rate is 6%. The term of the loan is 4 years.

Answers

The monthly payments for each add-on interest loan will be $29.71.

Given Information and Formula Used

Principal Amount, P = $1150

Rate of Interest, R = 6%

Duration of loan in years, T = 4

The formula for simple interest is given as,

I = (P × R × T)/100

Calculating the Add-On Interest For Each Month

Interest, I = (P × R × T)/100

Substituting the values of P, R, and T in the above formula, we get,

I = $ (1150 × 6 × 4)/100

I = $ 27600/100

I = $276

Calculating the Total Monthly Payment With Interest

Amount of add-on interest loan, A = P + I

A = $1150 + $276

A = $1,426

Monthly payment with interest = A/(4×12)

= $ 1426/48

= $29.71

Hence, the monthly payments for each add-on interest loan would be $29.71.

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Consider the function f denoted by:
[tex]f(x) = ln(x) [/tex]
Find the nth derivative of f(x) denoted by:
[tex]f {}^{(n)} (x ) [/tex]
Irrelevant answers will be reported immediately.

Answers

Step-by-step explanation:

Let take the first derivative

[tex] \frac{d}{dx} ln(x)) = x {}^{ - 1} [/tex]

The second derivative

[tex] - {x}^{ - 2} [/tex]

The third derivative

[tex]2 {x}^{ - 3} [/tex]

The fourth derivative

[tex] - 6 {x}^{ - 4} [/tex]

The fifth derivative

[tex]24 {x}^{ - 5} [/tex]

Let create a pattern,

The values always have x in it so

our nth derivative will have x in it.

The nth derivative matches the negative nth power so the nth derivative so far is

[tex] {x}^{ - n} [/tex]

Next, lok at the constants. They follow a pattern of 1,2,6,24,120). This is a factorial pattern because

1!=1

2!=2

3!=6

4!=24

5!=120 and so on. Notice how the nth derivative has the constant of the factorial of the precessor

so our constant are

[tex](n - 1)[/tex]

So far, our nth derivative is

[tex](n - 1)!x {}^{ - n} [/tex]

Finally, notice for the odd derivatives we are Positve and for the even ones, we are negative, this means we are raised -1^(n-1)

[tex] - 1 {}^{n -1} (n - 1) ! {x}^{-n} [/tex]

That is our nth derivative

Find the measure of the ndicaited angle to the nearest degree 35 and 38

Answers

The measure of the indicated angle to the nearest degrees is 23 degrees.

How to find angle of a right angle triangle?

The angle of a right angle triangle can be found as follows:

Therefore, the angle can be found using trigonometric ratios as follows;

cos ∅ = adjacent / hypotenuse

Therefore,

adjacent side = 35 units

hypotenuse side = 38 units

Hence,

cos ∅ = 35 / 38

∅ = cos⁻¹ 0.92105263157

∅ = 22.9272842944

∅ ≈ 23 degrees.

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simplify 5x(3x^2+2x-3)

Answers

Answer:

[tex]15x^3 +10x^2 - 15x[/tex]

Step-by-step explanation:

Hello!

Use the distributive property and multiply like terms.

Simplify[tex]5x(3x^2 + 3x - 3)[/tex][tex]5x(3x^2) + 5x(2x) + 5x(-3)[/tex][tex]15x^3 +10x^2 - 15x[/tex]

The simplified form is [tex]15x^3 +10x^2 - 15x[/tex].

yea I think that’s the correct answe aw well

4)48 Ans: The average height of a group of boys was 145 cm. When 2 boys joined the group, the average height became 148 cm. Given that the average height of the 2 additional boys was 160 cm, find the number of boys in the group at first.​

Answers

Answer:

  8

Step-by-step explanation:

The definition of an average can be used with the given values to write an equation for the number of boys.

Setup

The average is the total divided by the number. If there were n original boys, the total was T, where ...

  T/n = 145   ⇒   T = 145n

Adding two boys with an average of 160 cm height, the new total became (T +2(160)) and the new average became ...

  (T +2(160))/(n +2) = 148   ⇒   T = 148(n +2) -320

Equating the values of T, we have ...

  T = 145n = 148(n +2) -320

Solution

Solving for n, we find ...

  0 = 3n -24 . . . . . . . . . . . . subtract 145n and simplify

  0 = n -8 . . . . . . . . . . . divide by 3

  8 = n . . . . . . . . . . . add 8

The number of boys in the group at first was 8.

Which of the following inequalities matches the graph?
Ox=-7
Oxs-7
Oys-7
Oyz-7

Answers

Answer:

Second option

Step-by-step explanation:

As its a solid line, it indicates the inequality contains equal to in it. As the line crosses the x - axis it must be an option whereby x > or x < . Now read the value which is 7 therefore x ≤ 7

PLEASE NEED HELP
The lifespans of crocodiles have an approximately Normal distribution, with a mean of 18 years and a standard deviation of 2.6 years. What proportion of crocodiles live between 17.5 and 20.5 years?


Find the z-table here.

0.3147
0.4068
0.5932
0.6853

Answers

Using the normal distribution, it is found that 0.4068 of crocodiles live between 17.5 and 20.5 years.

Normal Probability Distribution

The z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given as follows:

[tex]\mu = 18, \sigma = 2.6[/tex]

The proportion of crocodiles live between 17.5 and 20.5 years is the p-value of Z when X = 20.5 subtracted by the p-value of Z when X = 17.5, hence:

X = 20.5:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{20.5 - 18}{2.6}[/tex]

Z = 0.96

Z = 0.96 has a p-value of 0.8315.

X = 17.5:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{17.5 - 18}{2.6}[/tex]

Z = -0.19

Z = -0.19 has a p-value of 0.4247.

0.8315 - 0.4247 = 0.4068

0.4068 of crocodiles live between 17.5 and 20.5 years.

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What is the total repayment made, including principal and interest, on a loan of $1,100 at 3.5% interest compounded annually over four years?

Answers

The total repayment made, including principal and interest is $1262.27

Compound interest

The formula for calculating the compound interest is calculated as shown below;

A = P(1+r)^t

where

P is the principal = $1100

rate = 3.5% = 0.035

time "t" =4 years

Substitute

A. = 1100(1+0.035)^4
A = 1100(1.035)^4
A = 1100(1.14752)

A = 1262.27

Hence the total repayment made, including principal and interest is $1262.27

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She wants to make sure that she can be the best parent she can be. She is determined to the best for her child. What information would you want to acquire? What would be your concerns for this family and what recommendations would you make. When writing this up: Clearly indicate level of analysis you are describing and how that information is going to impact potentially the life of the child. Ego: describes the impact of prenatal and genetic environment, Reviews potential risks and inquires about specific issues Microsystem : Describes the impact of the system on the ego and reviews potential risks and inquiries about specific issues Mesosystem : Describes the impact of the system on the ego and reviews potential risks and inquiries about specific issues Exosystem; Describes the impact of the system on the ego and reviews potential risks and inquiries about specific issues Macrosystem : Describes the impact of the system on the ego and reviews potential risks and inquiries about specific issues Chronosystem: Describes the impact of the system on the ego and reviews potential risks and inquiries about specific issues Growth Opportunities California Real Estate, Inc. , expects to earn $71 million per year in perpetuity if it does not undertake any new projects. The firm has an opportunity to invest $16 million today and $5 million in one year in real estate. The new investment will generate annual earnings of $11 million in perpetuity, beginning two years from today. The firm has 15 million shares of common stock outstanding, and the required rate of return on the stock is 12 percent. Land investments are not depreciable. Ignore taxes. A. What is the price of a share of stock if the firm does not undertake the new investment?b. What is the value of the investment?c. What is the per-share stock price if the firm undertakes the investment? A/ No one____ my wallet, I wonder where it is. 1.has seen 2.see 3.seen 4.have seen B/ Everyone eccept Peter ____ visited jim at hospital. 1.has 2.have 3. having 4. is C/ Neither the manager nor his employees ____ eaten lunch yet. 1.has 2.are 3.have 4.is D/ Rachael likes to knit ____ she has knitted a sweater for her brother. 1.until 2. so 3.but 4.unless E/ After trying very hard, Alex has shown improvement _____ her studies. 1.with 2.for 3.from 4.in F/ Annie likes ____ ball with her pet dog at the park. 1.play 2.plays 3.played 4.playing G/ ______ your improve, the coach will not let you take part in the swimming. 1.Unless 2. If 3.however 4.As H/Vegetables _____ a lot of vitamins and minerals that are good for your health. 1.contains 2. contain 3. contained 4. are containing I/Those who _____ football in the school field yesterday afternoon were in the school football team. 1. are playing 2. have played 3. were playing 4.play J/A box of chocolates ______ to my house this morning. 1. is delivered 2. has been delivered 3. was delivered 4. were delivered Consider a 150 ml solution of 0.4 M HCl. Calculate the volume of 6 M HCl required to achieve this solution. Report your answer to O decimal places. Volume (mL) 3 Use the given degree of confidence and sample data to construct a confidence interval for the population mean. Assume that the population has a normal distribution. The football coach randomly selected ten players and timed how long each player took to perform a certain drill. The times (in minutes) were: 7. 2, 10. 5, 9. 9, 8. 2, 11. 0, 7. 3, 6. 7, 11. 0, 10. 8, 12. 4Determine a 95% confidence interval for the mean time for all players A 0.10 KG BIRD IS FLYING AT A CONSTANT SPEED OF 9.0 M/S. WHAT IS THE KENETIC ENERGY As listed from equator to pole, the major wind belts describing the average winds at the ground follow which pattern? o easterly, westerly, easterly westerly, westerly, easterly westerly, easterly, westerly easterly, easterly, westerly Reducing average patch size should _____ P, while reducing average distance among patchesshould ____ Pa. Increase, increaseb. Decrease, decreasec. Increase, decreased. Decrease, increasee. Will not affect, decrease