What is the arc measure of a 90 degree angle

Answers

Answer 1

it’s 1/4 of a circle.


Related Questions

Write the differential dw in terms of the differentials of the independent variables. w = f(x,y,z) = cos (3x + 5y - 7z). dw= ___ dx+___ dy+ ___ dz

Answers

The partial derivatives we found earlier: dw = (-3sin(3x + 5y - 7z))dx + (-5sin(3x + 5y - 7z))dy + (7sin(3x + 5y - 7z))dz

To write the differential dw in terms of the differentials dx, dy, and dz, we'll first find the partial derivatives of w with respect to x, y, and z. Given w = f(x, y, z) = cos(3x + 5y - 7z):

∂w/∂x = -3sin(3x + 5y - 7z)
∂w/∂y = -5sin(3x + 5y - 7z)
∂w/∂z = 7sin(3x + 5y - 7z)

Now, we can write dw as the sum of the products of the partial derivatives and the corresponding differentials:

dw = (∂w/∂x)dx + (∂w/∂y)dy + (∂w/∂z)dz

Know more about partial derivatives here:

https://brainly.com/question/31397807

#SPJ11

Find the prime factors of 60 by dividing by prime numbers.​

Answers

Let's start with the smallest prime number 2

60/2 = 30

Divide that result over 2

30/2 = 15

We can't divide this by 2 because 15/2 = 7.5 isn't a whole number

Let's move onto 3

15/3 = 5

The result is a prime number, so we stop.

The values we divided as denominators were: {2, 2, 3}

We add the result 5 to the set to completely list all of the prime factors of 60

The prime factorization would be

60 = 2*2*3*5

which is the same as saying

60 = 2^2*3*5

For a typical human height of 2 meter what is the horizon distance on earth (r=6378) (b mars R=3,340

Answers

The horizon's distance for a typical human being (2 m height) for earth is 5 km, for mars it is 3.7 km, for moon its 2.6 km, and for Diemos it is 0.15 km (all calculations approx).

What is Pythagoras Theorem?

If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:

\(|AC|^2 = |AB|^2 + |BC|^2\)

where |AB| = length of line segment AB. (AB and BC are rest of the two sides of that triangle ABC, AC being the hypotenuse).

The complete question is:

" For a typical human height of 2 meters, what is the horizon distance on A) Earth (R=6378 km); B) Mars ( 3,374 km); C) The Moon ( 1,738 km); Mars' moon Diemos ( 6 km) "

Radius touching the line which passes touching the circle (tangent) is perpendicular(to 90°) to it.

Consider the diagram attached below:

The distance D is the distance of horizon from the eyesight of viewer.

The value of h is the height of the observer.

For the triangle ABC, the length of the hypotenuse is: h + R

Other two sides which are mutually perpendicular are of length R and D.

Thus, by using Pythagoras theorem, we get:

\(R^2 + D^2 = (h+R)^2\\D = \sqrt{h^2 + R^2 + 2hR -R^2}\\\\D = \sqrt{h^2 + 2hR}\\\)

(positive root as D is representing length, a non-negative quantity).

We're given h = 2, so we get:

\(D = \sqrt{4+4R} = 2\sqrt{1+R} \: \rm m\)

A) Earth (R=6378 km);

6378 km = 6378000 m

\(D = 2\sqrt{6379001} \approx 5051 \: \rm m \approx 5 \: km\)

B) Mars ( 3,374 km);

3374 km = 3374000 m

\(D = 2\sqrt{3374001} \approx 3674 \: \rm m \approx 3.7 \: km\)

C) The Moon ( 1,738 km);

1738 km = 1738000 m

\(D = 2\sqrt{1738001} \approx 2637 \: \rm m \approx 2.6 \: km\)

D)Mars' moon Diemos ( 6 km)

6 km = 6000 m

\(D = 2\sqrt{6001} = 154.93 \: \rm m \approx 0.15 \: km\)

Thus, the horizon's distance for a typical human being (2 m height) for earth is 5 km, for mars it is 3.7 km, for moon its 2.6 km, and for Diemos it is 0.15 km (all calculations approx).

Learn more about Pythagoras theorem here:

https://brainly.com/question/12105522
#SPJ1

What is an equation of the line that passes through the points (-5, -1) and
(5, -3)?

Answers

The answer is

\(y = - \frac{1}{5} x - 1.2\)

or you can replace -1/5 with -0.2

follow the procedures in the attachment please.

What is an equation of the line that passes through the points (-5, -1) and(5, -3)?

Enid wrote a textbook for high school students she receives a 5% royalty based on the total sales of the book the book sells for $51.95 and 12341 copies were sold last year how much did Enid receive in royalty payments for last year to the nearest cent

Answers

Answer:

$32,055.75

Step-by-step explanation:

51.95 x 12341 = 641,114.95 (the total amount of money made by the books)

641,114.95 x 0.05 = 32,055.7475

(0.05 is the 5% royalty, since percents are out of 100 you use decimal points to find them)

$32,055.75 (final answer rounded)

1. MOVIES By the end of its first week, a
movie had grossed $2.3 million. By the
end of its sixth week, it had grossed
$6.8 million. Graph the data with the
week on the horizontal axis and the
revenue on the vertical axis, and draw a
line through the points. Then find and
interpret the slope of the line.
10
Revenue (millions of dollars)
OU
0 2 4 6 8 10
Week

1. MOVIES By the end of its first week, amovie had grossed $2.3 million. By theend of its sixth week,

Answers

0.9

The first step is to label the points being (1,2.3),(6,6.8) in which the first ordered pairs is the number of weeks, and the second one is the dollars in millions.

Hence, the slope is: m=(6.8-2.3)/(6-1) = 4.5/5 = 9/10 = 0.9

The slope represents the dollar rate in the millions per week. In this case, the movie grossed $0.9 million per week from week one to the sixth week.

Evaluate f(x) = 3x − 7 when x = 4.

Answers

Answer:

f(x)=5

Step-by-step explanation:

3(4)-7

12-7

5

Hope This Helps!

Substitute the given value for x into each equation to determine the value of y.
1. y = 3x + 6; x = -4
2.3.2 - 8y = 12; x = 4
3. y = -43; x = -2

Answers

Answer:

Y=-6

Y= -1.1

Y=-43

Step-by-step explanation:

Use substitution to solve the following system of equations

2x + 3y = 18 AND X = y - 6

Answers

Answer:

y=6,x=0

Step-by-step explanation:

here's an attachment with how to solve

Use substitution to solve the following system of equations 2x + 3y = 18 AND X = y - 6

Phil is 2 years older than Andrew. Andrew is 6 years old. The sum of their ages is 22 years. How old is Bob?

Answers

Answer:

he would be 14

Step-by-step explanation:

Answer:Bob is 8 years old

Step-by-step explanation:

Andrew is 6 years, Phil is 8 years, add those together, subtract that by 22

Solve for x.
x2 + 5x - 84 = 0
x= [?]
Enter the smallest solution first.
Remember the quadratic formula: x =
-b± √b²-4ac
Enter

Answers

The value of x is expressed as x = -5 ± 12. 9

How to determine the value

From the information given, we have the quadratic equation given as;

x² + 5x - 84 = 0

Given the quadratic general formula as;

ax + bx + c

We have the variables as;

a = 1

b = 5

c = -4

Then, using the formula, we get;

x = -b± √b²-4ac

Substitute the values

x = -(5) ± \(\sqrt{\frac{-(5) - 4(1)(-84)}{2(1)} }\)

Multiply the values, we get

x = -5± √331/2

Divide the values, we get;

x = -5 ± √165.5

Find the square root of the value

x = -5 ± 12. 9

Learn more about quadratic equations at: https://brainly.com/question/1214333

#SPJ1

what would f(10) if f(n) is shown in the table?

what would f(10) if f(n) is shown in the table?

Answers

Answer:

if f(10) was shown if the graph, f(n) would be -20

Meggy was solving the following equation: 3x + 5 = 64 She concluded that the value of x is \(x=19.6666...\) Is she correct?

Answers

Answer:

Yes, she is correct.

Step-by-step explanation:

\(3x+5=64\\\\3x+5-5=64-5\\\\3x=59\\\\\frac{3x}{3}=\frac{59}{3}\\\\ \frac{59}{3}=19\frac{2}{3}\\\\19\frac{2}{3}=19.666...\\\\ \text{Therefore}:\\x=\boxed{19.666...}\)

The digit of 6 is repeating.

Two terms of an arithmetic sequence are $a_{12}=70$a12​=70​ and A sub 30 is equal to 124$a_{30}=124$a30​=124​ . Write an explicit rule for the n$n$n​ th term

Answers

Answer:

Tn = 34+3n

Step-by-step explanation:

The formula for finding the nth term of an arithmetic sequence is expressed as shown;

\(Tn = a+(n-1)d\)

a is the first term of the sequence

n is the number of terms

d is the common difference

If T₁₂ = 70 and T₃₀ = 124

T₁₂  = a+(12-1)d = 70

T₁₂  = a+11d = 70... (1)

Similarly;

T₃₀ = a + (30-1)d = 124

T₃₀ = a +29d = 124...(2)

Solving equation 1 and 2 simultaneously to get a and d.

Subtracting 2 from 1 we have;

29d - 11d = 124-70

18d = 54

d = 54/18

d = 3

Substituting d = 3 into equation 1 to get a we have;

a + 11(3) = 70

a + 33 = 70

a = 70-33

a = 37

The explicit rule for the nth term of the sequence can be gotten by substituting the value of a and d into the formula Tn = a+(n-1)d

Tn = 37+(n-1)*3

Tn = 37+3n-3

Tn = 34+3n

through: (1,-1), Parallel to y = 1/4× - 4​

Answers

Answer:

I believe it is y=1/4x.

Find the slope of each side of this quadrilateral and use that information to explain why it is a rectangle
8
BI
Your answer might look like this (you can 'copy-paste' the sentences below and fill in the blanks)
The slope of the side BA is The slope of the side BC is_-
The slope of the side BA is__ The slope of the side AD is_
The slope of the side CD is
The slope of the side AD is_
The slope of the side CD is
The slope of the side BC is
Finding the slopes tell me that this quadrilateral is a rectangle because_

Find the slope of each side of this quadrilateral and use that information to explain why it is a rectangle8BIYour

Answers

Step-by-step explanation:

the answer is in the above image

Find the slope of each side of this quadrilateral and use that information to explain why it is a rectangle8BIYour

please answer fast ! thanks

please answer fast ! thanks

Answers

A quadratic functiοn f whose zeroes are 2 and 5 is f(x) = x² - 7x + 10.

WHAT IS QUADRATIC FUNCTION?  

A quadratic functiοn is a secοnd-degree pοlynοmial functiοn οf the fοrm:

f(x) = ax² + bx + c

where a, b, and c are cοnstants, and a is nοt equal tο 0. The graph οf a quadratic functiοn is a parabοla, which can οpen upwards οr dοwnwards depending οn the sign οf the leading cοefficient a.

The term ax² is the quadratic term, bx is the linear term, and c is the cοnstant term. The cοefficient a determines the shape οf the parabοla, while the cοnstants b and c determine its pοsitiοn and οrientatiοn.

Quadratic functiοns can have οne, twο, οr zerο real rοοts (alsο knοwn as sοlutiοns οr zerοs), which cοrrespοnd tο the x-intercepts οf the parabοla. The number and nature οf the rοοts depend οn the value οf the discriminant, which is given by b² - 4ac.

If the zeroes are x = 2 and x  = 5 then the solutions must be:

(x - 2)(x - 5)

Multiply them and make a quadratic function

⇒ (x - 2)(x - 5)

⇒ (x²  - 5x)- (2x - 5)

⇒ x² -5x - 2x + 5

⇒ x² -5x - 2x + 5

⇒ x² - 7x + 5

Comparing this to the form of the quadratic function f(x) = ax² + bx + c, we see that a = 1, b = -7, and c = 10. Therefore, the quadratic function with zeros at 2 and 5 is:

f(x) = x²- 7x + 10

So, the correct option is f(x) = x² - 7x + 10.

To know more about quadratic equation visit :-

brainly.com/question/1214333

#SPJ1

5/-8 divided by 1 3/7

Answers

Answer:

3

Step-by-step explanation:

You would do 3/5 =6 then do 13/7 = 18/6=3

Determine the surface area of a right circular cone that has a slant height of 4 mm and aradius of 3 mm? Round your answer to the nearest whole.

Answers

The surface area of a right circular cone is computed as follows:

\(SA=\pi rs+\pi r^2\)

where r is the radius and s is the slant height of the cone.

Substituting with r = 3 mm and s = 4 mm, we get:

\(\begin{gathered} SA=\pi\cdot3\cdot4+\pi\cdot3^2 \\ SA=12\pi+9\pi \\ SA=21\pi \\ SA\approx66\text{ mm}^2 \end{gathered}\)

The ______ a system of linear equations that has at least one solution is ---select--- , whereas a system of linear equations that has no solution is ---select--- . need help?

Answers

The system of linear equations has at least one solution is consistent , whereas a system of linear equations that has no solution is inconsistent

What is a system of linear equations?

A collection of one or more linear equations involving the same variables is known as a system of linear equations (or linear system) in mathematics.

The subject of linear algebra, which is employed in most areas of contemporary mathematics, is based on the theory of linear systems. Numerical linear algebra includes computational strategies for obtaining the solutions, which are crucial to the fields of engineering, physics, chemistry, computer science, and economics. A helpful strategy when creating a mathematical model or computer simulation of a relatively complex system is to approximate a system of non-linear equations by a linear system (see linearization).

To know more about system of linear of equation........

https://brainly.com/question/14323743

#SPJ4

Solve the problem. Round dollar amounts to the nearest cent. Use ordinary interest (360 days in a year) unless otherwise indicated. Chris Owens bought a new computer system. To pay for the system, he borrowed $3,290 from the credit union at 10(1/3)% interest for 110 days. Find the interest.

Answers

To find the interest of Chris Owens’ credit union loan of $3,290 at 10(1/3)% interest for 110 days, we use the simple interest formula as follows:

Simple Interest = (P × R × T)/100Where:P = Principal or amount borrowedR = Rate of interest per annumT = Time in years or fraction of a year110 days ÷ 360 days = 0.3056 (time as a fraction of a year)The rate of interest, 10(1/3)% is equal to 10 + (1/3) percent = 10.33% per annum in decimal form = 0.1033Substituting the values we have into the formula,Simple Interest = (P × R × T)/100= (3,290 × 0.1033 × 0.3056)/100= $100.68 (rounded to the nearest cent)

Therefore, the interest of Chris Owens’ credit union loan of $3,290 at 10(1/3)% interest for 110 days is $100.68.

A credit union loan is a type of personal loan that can be used for a variety of purposes. One of the most common reasons people take out credit union loans is to purchase big-ticket items like a new computer system. When you take out a loan, you must pay back the amount borrowed plus the interest charged by the lender. The interest rate is usually expressed as a percentage of the amount borrowed and is charged for a specific period of time known as the loan term. Simple interest is a method of calculating interest that is charged only on the principal amount borrowed.

It does not take into account the interest that has already been paid. Simple interest is calculated by multiplying the principal amount borrowed by the interest rate and the length of the loan term. The answer is more than 100 words.The interest of Chris Owens’ credit union loan of $3,290 at 10(1/3)% interest for 110 days is $100.68. Therefore, he would pay $3,290 + $100.68 = $3,390.68 in total to the credit union over the loan term. It is important to note that when rounding dollar amounts to the nearest cent, amounts that end in .50 or higher are rounded up to the next highest cent, while amounts that end in .49 or lower are rounded down to the next lowest cent. In this case, $100.6847 would be rounded up to $100.68. In conclusion, the interest charged on a loan can significantly increase the total amount that must be repaid, making it important for borrowers to understand how interest is calculated and the terms of their loan.

To know more about Chris Owens’ visit

https://brainly.com/question/11904608

#SPJ11

the area of a rectangle is 65 sqare meters. the lenght of the rectrangle is 3 m less thans twice the width. find the dimensions of the rectangle

Answers

The dimensions are;

Length = 7 meters

Width = 5 meters

How to determine the value

The area of a rectangle is expressed as;

Area = length × width

From the information given, we have that;

Length = 2w - 3

Area = 65

Substitute the values

65 = (2w - 3)w

expand the bracket

65 = 2w² - 3w

solve the quadratic equation;

2w² + 13w - 10w - 65

Factorize the terms

w(2w + 13) - 5(2w + 13)

w = 5

Substitute the value

Length = 2w - 3 = 2(5) - 3 = 7

Learn about area at: https://brainly.com/question/25292087

#SPJ1

Slope:

Y-Intercept:

Equation:
pls help

Slope: Y-Intercept: Equation: pls help

Answers

Answer:

Slope: 4

Y-interecept: -2

Step-by-step explanation:

To find the slope, use rise over run. Go up from the y-intercept and over until you hit another exact point.

To find the y-intercept, just find the point that is on the y-axis.

y intercept is -2 and the slope is 3

3) A lottery ticket says that the chances of winning are 1 in 8. Suppose you buy 10 of these lottery tickets. Find the probability that at least one of them will be a winner

Answers

The probability of at least one of your 10 lottery tickets being a winner is approximately 0.638 or 63.8%.

The probability of winning on a single lottery ticket is 1/8, which means that the probability of not winning is 7/8. If you buy 10 of these lottery tickets, the probability of not winning on any of them is:

(7/8)^10 = 0.362

This means that there is a 36.2% chance that none of your tickets will be a winner. To find the probability that at least one of your tickets will be a winner, we can use the complementary probability:

P(at least one winner) = 1 - P(no winners)

P(at least one winner) = 1 - 0.362

P(at least one winner) = 0.638

Find out more about probability

brainly.com/question/29121185

#SPJ4

How do you find the domain domain and range of a function?

Answers

To find the domain and range, the function we simply solve the equation y=f(x) to determine the values of the independent variable x and obtain the domain.

Domain: In simple words, the domain is the set of values of x for which function f(x) is defined,  and also the set of values of x for which we can calculate the value of f(x)

Range: The range of function can define as the set of values of f(x) for the value of its domain

For finding the domain of any function f(x) ..find the value of all x for which function f(x) is defined

For finding the value of the range of function f(x), calculate the value of f(x) for all values of x in the set of domains of f(x)

To know more about domain range:

https://brainly.com/question/1942755

#SPJ4

I need help with this problem

I need help with this problem

Answers

I think the answer is 2.571

to decrease sample error, a pollster must __________ the number of respondents.
A) issue-scale B) increase C) decrease D) underrepresented

Answers

The correct option is  B) increase.

To decrease sample error, a pollster must increase the number of respondents. The larger the sample size, the more representative it is likely to be of the target population, leading to a lower margin of error.

When conducting surveys or polls, it is essential to obtain responses from a diverse and random group of individuals. By increasing the number of respondents, the pollster can capture a broader range of perspectives, which helps to reduce sampling bias and increase the accuracy of the results.

For example, let's say a pollster wants to understand the political preferences of voters in a particular city. If they only survey 50 people, the sample may not accurately reflect the larger population, and the margin of error could be high. However, if they survey 500 or even 1000 people, the results are more likely to provide a reliable estimate of the overall population's preferences.

Therefore, to decrease sample error, pollsters should increase the number of respondents in their surveys or polls. This approach helps to ensure a more accurate representation of the population's views and minimize the potential for misleading or biased results.

Learn more about pollsters here:

brainly.com/question/2729655

#SPJ11

Data reduction can only be applied to rows (observations) but not to columns (variables) in a given dataset.True/False

Answers

False.

Data reduction techniques can be applied to both rows (observations) and columns (variables) in a given dataset. Data reduction techniques like Principal Component Analysis (PCA) and Factor Analysis are applied to variables in order to reduce the number of variables and extract relevant information from them. These techniques aim to identify underlying factors or components that explain the variance in the data and represent them in a lower-dimensional space. Similarly, techniques like clustering and outlier detection can be applied to observations in order to group similar observations together or identify outliers.

Therefore, data reduction can be applied to both rows and columns, depending on the analysis goals and data characteristics.

Learn more about Data Reduction Techniques more: brainly.com/question/29547680

#SPJ11  

if it takes 40 gallons of gas to drive 750 miles, then how many gallons are needed to drive 300 miles?

Answers

1 gallon equals 18.75 mild substitute

Please help 10 points

Please help 10 points

Answers

Answer:

D 16nsnsbsnshshshshshs

Other Questions
What happens to financial security during a depression?a. benefitsb. challengesC. diminishes Clearly define foreign exchange economic exposure for a multinational corporation. Explain how foreign exchange economic exposure is affected by (i) real and (ii) nominal changes in exchange rates? PLEASE HELP ASAP!! I NEED YOUR HELP PLEASE At sundown the fairies were still working on the sandy plot. Two days went by. And a week. And another. Because just as one set of footprints were got rid of, another set appeared. By the end of the second week, in fact, the fairies had covered the entire plot with footprints. At last they gave up and let the woman live.The Wise Fool,West African folktaleWhich words and phrases from the excerpt signal the text structure? Choose three correct answers.at lastby the endcoveredworkinganother And I would show you off for everything I own, I know it's not what you're used to. See, they could tear me down, take everything I made I'll still be here, next to you Blackberries cost $8 per pound. Raspberries cost $9 per pound. Janelle can spend a maximum of $ 40 Assign 7 to a variable named seven. parents bring a 15-year-old client into the clinic. the parents tell the nurse that there is a family history of schizophrenia, and they fear their child has developed the disease. what symptoms, if described by the family, would support their conclusion? A businessman borrowed P9000 from a bank to fix his car. The bank charges 7% simple interest per year.What is the total amount that the businessman has to pay the bank after two years? Please hurry and help 15 points How can you redefine your success? What symmetries does a octagon have? Outline the main ideas discussed by Quesnay, Cantillonand Turgot and identify 2 similarities. You enter into a one-year forward contract to purchase GBP1,000,000 at a forward rate of AUD1.7346/GBP. Draw a timeline of the cash flows of this transaction (from your perspective). 50 yo F presents with recurrent episodes of bilateral squeezing headaches that occur 3-4 times a week, typically toward the end of her work day. She is experiencing significant stress in her life. what the diagnosis? find dw/dv when u=-1, v=2 if w=(xy lnz),x=(v^2)/u, y=u v, z=cosu Which rectangle has an area of 40 square units chief complaint of ear sudden onset of pain, popping noises, and muffled hearing. during the ear exam the np notices that the tm has ruptured. the first line treatment for bryce would be: t target practice, Scott holds his bow and pulls the arrow back a distance of :::..0.30 m by exerting an average force of 40.0 N. What is the potential energy stored in the bow the moment before the arrow is released Find the value of y that makes the equation y= 1/2x- 2 true when x=4 A. -4 B. 0 C. 1 D. 4thanks