Find the exact value of each expression, if it is defined. Express your answer in radians. (If an answer is undefined, enter UNDEFINED.)
(a) sin−1(-squareroot of 2/2)
(b) cos−1(-squareroot of 2/2)

Answers

Answer 1

Answer:

a) -0.7854

b) 2.36

Step-by-step explanation:

Here, we want to find the value of the angles in radians

We proceed as follows;

a) arcsin( - √2/2)

= -0.7854

b) arccos(-√(2)/2

= 2.36


Related Questions

If ex + e*-1= 2, then x =..

Answers

Note: Your equation seems a little unclear. But, I am assuming that your equation is:

[tex]e^x\:+\:e^{-1}=\:2[/tex]

Because my solution would still clear your concept about this topic, no matter what the question is.

Answer:

Please check the explanation.

Step-by-step explanation:

Given the equation

[tex]e^x\:+\:e^{-1}=\:2[/tex]

subtract [tex]e^{-1}[/tex] from both sides

[tex]e^x+e^{-1}-e^{-1}=2-e^{-1}[/tex]

[tex]e^x=2-\frac{1}{e}[/tex]

[tex]\ln \left(e^x\right)\:=\ln \:\left(2-\frac{1}{e}\right)[/tex]

[tex]\:x\cdot ln\left(e\right)=\ln \:\:\left(2-\frac{1}{e}\right)[/tex]

[tex]\:x\cdot 1=\ln \:\left(2-\frac{1}{e}\right)[/tex]       ∵ [tex]\:\:\ln \left(e\right)=1[/tex]

[tex]x=\ln \:\left(2-\frac{1}{e}\right)[/tex]    

[tex]x=0.5[/tex]

At a charity fund raiser, adult tickets were sold for $11 each and children’s tickets were sold for $5 each. Write an algebraic expression for the total amount of money raised from the sale of tickets. How much money was raised if the fund raiser sold 247 adult tickets and 390 children’s tickets? Let a= number of adult tickets and c= number of child tickets.

Answers

9514 1404 393

Answer:

11a +5c$4667

Step-by-step explanation:

If 'a' adult tickets are sold for $11 each, the amount of money they sold for is ...

  11a

If 'c' children's tickets are sold for $5 each, the amount of money they sold for is ...

  5c

Then the expression for the total amount from the sale of tickets is ...

  11a +5c . . . . total of money raised

__

The value of this expression for a=247 and c=390 is ...

  11·247 +5·390 = 2717 +1950 = 4667

A total of $4667 was raised by the sale of tickets.

Literally have no clue how to do the heart beat please help



Answers

Step-by-step explanation:

To find the rate, divide the number of heartbeats by the number of seconds.

You: 22 beats / 20 seconds = 1.1 beats per second.

Friend: 18 beats / 15 seconds = 1.2 beats per second.

Round 61.7625 to the nearest cent hurry! My math is due today!

Answers

Nearest cent would be 61.76

Answer:to the neareast tenth the answer is 61.8 hope this helped!

Step-by-step explanation:

What is the percent change in the price of a gallon of gas, to the nearest whole percent?

Was $3.499 Now $3.079

Answers

Answer: 3.499 now 3.079 is correct

how do u do math? on my mom

Answers

Answer:

well... oop my FIRE ALARM WENT OFF gtg

Step-by-step explanation:

Answer:

1+1=2

Step-by-step explanation:

Which of the following shows (2x + y) 4 (4 is small) In expanded notation?

Answers

Answer:

8x+4y

Step-by-step explanation:

so use the distributive property and multiply 4 into (2x+y), so you get

(2x*4) + (y*4) = 8x + 4y

hope this helped

5 1/4+ 15.5= plz help​

Answers

Answer:

83/4 or 20 3/4

Step-by-step explanation:

5 1/4 + 15.5

21/4 + 15.5

83/4 or, as a mixed number, 20 3/4

Most __ jobs are worked 10 to 20 hours per week

Answers

Answer: Most part-time jobs are worked 10 to 20 hours per week.

Answer:

part-time

Step-by-step explanation:

most part time jobs work shorter hours than 40

263/4 plz answer thank you

Answers

Answer:

65.75

Step-by-step explanation:

All you do is divide.

Answer:

65.75

Step-by-step explanation:

Please give me Brainlest!

what is the slope (5,7) and (2,-2)​

Answers

Answer:

slope = 3

Step-by-step explanation:

to find the slope you do (y2-y1)/(x2-x1)=m

so we can plug the points into this formula

(5,7)     (2,-2)

x1 y1    x2 y2

-2-7/2-5=m

-9/-3=m

Simplifies to

3=m

which of the following is a UNIT RATE
1box/ $3
10miles/ 2hours
$6 for each hour
15 pounds every 5 servings

Answers

I believe it is 10miles/2 hours

6^-6/6^-5 in the form 6^n

Answers

Here you go! Hope this helps

Answer:

6⁻¹

Step-by-step explanation:

6⁻⁶ = [tex]\frac{1}{6^6}[/tex]    and   6⁻⁵ = [tex]\frac{1}{6^5}[/tex]

[tex]\frac{1}{6^6} * \frac{6^5}{1} = \frac{6^5}{6^6} = \frac{6^0}{6^1} = \frac{1}{6}[/tex]                ** top & bottom same base 6, subtract exponent

 [tex]\frac{1}{6}[/tex]  = 6⁻¹

I need this done like rn so please help!

Answers

Answer:

1. Most professional athletes are from the ages 25-30.

2. Do people over 40 years of age participate in professional sports?

Hope this helps!

~PumpkinSpice1

Answer:

1. Most professional athletes are from the ages 25-30.

2. Do people over 40 years of age participate in professional sports?

Step-by-step explanation:

1. Most professional athletes are from the ages 25-30.

2. Do people over 40 years of age participate in professional sports?

1. Most professional athletes are from the ages 25-30.

2. Do people over 40 years of age participate in professional sports?

1. Most professional athletes are from the ages 25-30.

2. Do people over 40 years of age participate in professional sports?

1. Most professional athletes are from the ages 25-30.

2. Do people over 40 years of age participate in professional sports?

1. Most professional athletes are from the ages 25-30.

2. Do people over 40 years of age participate in professional sports?

1. Most professional athletes are from the ages 25-30.

2. Do people over 40 years of age participate in professional sports?

A metalworker has a metal alloy that is 15% copper and another aloy that is 60% copper. How many kilograms of each alloy should the metalworker combine to create 100 kg of a 51% copper alloy?

The metalworker should use ____ kilograms of the metal alloy that is 15% copper and ____ kilograms of the metal alloy that is 60% copper.

Answers

Inches and the other one is kilometers


The Center for Science and Industry sells adult tickets for $13 and children's tickets for $3. The expression 13a + 3c represents the total revenue from selling a adult tickets and children's tickets. Evaluate the algebraic expression
13a+3c for a = 135 and 404

Answers

Answer:

1)1755+3c

2)5252+3c

Step-by-step explanation:

13*135+3c

which is 1755+3c

and

13*404+3c.

which is 5252+3c

Hope this helps plz hit the crown and friend me :D

A Kamal has 6 cans of regular soda and 15 cans of diet soda. He wants to create some identical refreshment tables that will operate during the American football game. He also doesn't want to have any sodas left over. What is the greatest number of refreshment tables that Kamal can stock? Pls I need help. TwT

Answers

Answer

15 + 6 = 21 15 - 6 = 9 is the answer

Two dice are rolled, what is the probability that the sum of the dice is 7, given that exactly one die shows a five?
A. 1/8
B. 1/5
C. 05/36
D. 1/6

Answers

Answer

the best answer is D

can someone please help, don't use this for points pls :/
(I'll give brainly)

Answers

Answer:

x = 3

AB = 18

Step-by-step explanation:

Based on the midsegment theorem:

[tex] MN = \frac{1}{2}(AB) [/tex]

MN = 9

AB = x + 15

Plug in the values and solve for x

[tex] 9 = \frac{1}{2}(x + 15) [/tex]

Multiply both sides by 2

[tex] 9 \times 2 = \frac{1}{2}(x + 15) \times 2 [/tex]

[tex] 18 = x + 15 [/tex]

Subtract 15 from each side

[tex] 18 - 15 = x + 15 - 15 [/tex]

[tex] 3 = x [/tex]

x = 3

AB = x + 15

Plug in the value of x

AB = 3 + 15

AB = 18

Ella is buying a 10$ chair ahe has a coupon for 15% off how much does she pay for the chair if sales tax is 6%

Answers

Answer:

9.01

Step-by-step explanation:

10.00-15%+6%=9.01

GIVING BRAINLIEST!!!!!!!!!!!!!!!!!

Answers

Answer:

C. 36 degrees

Step-by-step explanation:

Exterior angles sum = 360 degrees

72+144=216

360-216=144

Supplementary angles(Angles on opposite sides of the transversal) sum = 180

180-144= 36

Therefore, x=36 degrees

I suck at math so can you help with this is a test so Yh

Answers

The correct answer is option D:)

plz do this ill mark brainly ​

Answers

Answer:

1. Expression: y = 235x

Answer: 1,175

2. The cost of the shirts is 5 dollars. Alex has 15 dollars in his wallet. He wants to buy 3 shirts. Write an expression that represents this problem.

Step-by-step explanation:

5. 235 per second

5 x 235 = 1,175

Expression: y = 235x

22
Solve for x.
3x - 5 = 10
x equals.....
help

Answers

Answer:

[tex]x = 5[/tex]

Step-by-step explanation:

[tex]3x - 5 = 10[/tex]

We want to isolate the x.

[tex]3x - 5 = 10\\+5\;\;\;\;\;\;\;\;\; +5[/tex]

[tex]3x = 15[/tex]

Now, we want the x not to have a coefficient. We want it just to be x =. We will do this via inverse operations. Since 3 x is 3 multiplied by x, we will divide each side by 3.

[tex]\frac{3x}{3} \;=\;\frac{15}{3}[/tex]

[tex]x = 5[/tex]

~[tex]InLoveWithPugs[/tex]

[tex]Moderator\\Math \ Enthusiast[/tex]

Hii!

_________________________________________________________

[tex]\rightsquigarrow\circ\boldsymbol{Answer}\circ\leftharpoonup[/tex]

x=5

[tex]\rightsquigarrow\circ\boldsymbol{Explanation}\circ\leftharpoonup[/tex]

To solve for x, we need to first get it all by itself.

[tex]\twoheadrightarrow\sf3x-5=10[/tex]

[tex]\bullet[/tex] Add 5 to both sides

[tex]\twoheadrightarrow\sf3x=15[/tex]

[tex]\bullet[/tex] Divide by 3 on both sides

[tex]\twoheadrightarrow\sf x=5[/tex]

[tex]\bullet[/tex] Great job! We solved for the variable x

--

Hope that this helped! Best wishes.

[tex]\textsl{Reach far. Aim high. Dream big.}\\\boldsymbol{-Greetings!-}[/tex]

--

can somone help me pls

Answers

Answer:

x = 9

Step-by-step explanation:

First equation = 4x - 8

Second equation = 7x - 35

Seperate the equation with an equal sign to make it an equality equation and solve for X so :

4x - 8 = 7x - 35 (Given)

-3x - 8 = -35 (Subtraction property of equality)

-3x = -27 (Addition property of equality)

x = 9 (Division property of equality)

Solution:

x = 9

please help

the answer choices are

8 and 7/13

4 and 28/30

8 and 6/30

8 and 28/30

will give brainlyest

Answers

Answer:

answer is 8 and 28/30

Step-by-step explanation:

write 3/5x+1/4y=-1/2 in standard form

Answers

Answer:

12 x  +  5 y  =  − 10

Step-by-step explanation:



In factor market of the circular flow, firms receive factors of production

from households in exchange for

Answers

Answer:

In exchange for rent/royalty, wages/salaries, interest, and profit. All of which accrue to households, for the FOP they sell.

Step-by-step explanation:

In the Circular Flow of Income model, the movement of money and resources is described/illustrated.

The factor market is the arrangement where factors of production are bought and sold. Remember that factors of production are classified into 4 groups:

- land  - labor  - capital  - entrepreneur

In a 2-sector economy, the players in the circular flow model will be Households & Firms

The factor market of the CFM will have households providing the factors of production and firms purchasing the factors of production.

So in the factor market of the CFM, firms receive factors of production from households, in exchange for payments such as rent (for land), income (for labor), interest (for capital), and profit (for entrepreneurial/management skills).

How Markets Work Unit Test: I just got done with the test

1.In the circular flow diagram, what do households receive from factor markets?

A.income

2.In what form do households receive income from labor within a resource market?

A.wages

3.As the price of a good or service increases, consumers will purchase a lower quantity of that good or service due, in part, to the fact that consumers cannot afford the same quantity of a good or service at a higher price. This concept is known as the _____.

A.income effect

4.An increase or decrease in which of the following factors would cause a shift in the demand curve for a given good? Select the two correct answers.

A.income and price of related goods

5.In a hypothetical country, the population is expected to increase by 25% following recent legislation relaxing the barriers that restrict immigration. It is expected that the new immigrants will purchase the same goods and services as the current population does. If all other economic forces are held constant, how would this increase in population influence demand?

A.shift the demand curves for all goods and services to the right

6.Which of the following satisfy the law of supply? Select the two correct answers.

A.A decrease in price is followed by a decrease in quantity supplied. and An increase in price is followed by an increase in quantity supplied.

7.Calculate the marginal product of labor associated with hiring a third worker.

A.4,000

8.A firm began the year making large profits. As time passed, the firm recorded the highest sales numbers in the history of its existence, but profit began to fall. Which of the following is a good strategy for the firm to follow if it wants to increase profits?

A.reduce output

9.A government official proposes taxing producers of plastic grocery bags at 10 cents per plastic bag. What effect would the tax have on the market for grocery bags?

A.Supply would decrease.

10.Baseball cards are considered to be a normal good. This means that, as incomes rise, consumers are willing and able to purchase greater quantities of baseball cards. How would an increase in incomes be modeled in a graph of the supply and demand curves for baseball cards?

A.The equilibrium point would move upward along the supply curve.

11.Movie tickets and popcorn are complementary goods. The price of corn, a good used in the production of popcorn, has fallen in price. Simultaneously, the rise of at-home streaming services have led movie theaters to decrease the amount of movies they offer. What is the result of these two events on the market for movie tickets?

A.The market equilibrium price of movie tickets will definitely rise.

12.A recent economic event has caused prices for a good to skyrocket. The same day, quantity supplied to the market fell by nearly 50%, and consumers experienced an immediate and significant shortage of the good. Which of the following economic events has most likely occurred?

A.Supply has decreased.

13.Which of the following is generally true of a competitive free market economy?

A.It can run itself without the intervention of government.

14.Within a single day, the popularity of a product rises to such a degree that the inventories of retailers are completely emptied of the product as consumers rush to purchase every available unit. You are the manager of a firm that produces this product, producing at profit-maximizing output prior to the surge in popularity. What would be an economically sound strategy for you to follow if you are acting in your self-interest?

A.Sell your product at a higher price to retailers.

15.What is a disadvantage of a multinational corporation?

A.stifles competition and innovation in host countries

16.How are the International Monetary Fund and the World Bank related?

A.The World Bank and International Monetary Fund both strive to help provide economic stability to countries in need.

17.Match the definition with the type of market structure.

Drag each item to the correct location.

Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.

A.A market with no barriers to entry and a large number of price-taking firms. perfect competition

A market with significant barriers to entry and a single price-setting firm. monopoly

A market with no barriers to entry and a large number of price-setting firms. monopolistic competition

A market with significant barriers to entry and a small number of price-setting firms. oliopology

18.The highest degree of product differentiation is found in which of the following types of market structures?

A.monopolistic competition

19. response answers

20. response answers

indicate the equation of the given line in standard form. Write the answer in the equation box below. The line containing the median of the trapezoid whose vertices are R(–1, 5), S(1, 8), T(7, –2), and U(2, 0).

Answers

Answer:

I would have a strong conclusion to think that it is y=4x-6

Step-by-step explanation:

how many miles are in 50 meters​

Answers

Answer:

0.0310686

Step-by-step explanation:

ANSWER 0.0310686

Step-by-step explanation:

Eh- :P

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