Find the exact real value of arccos(-sqrt(2)/2).

Answers

Answer 1
Answer:  arccos(-sqrt(2)/2). range of cos − 1 ( x )=[ 0 , π ]
= arccos(0.706 )
=45 degrees
hope  this helps
Answer 2
Answer:

Answer: -1

Step-by-step explanation: pre cal ED


Related Questions

A book is marked down by 28 percent from an original price of $19.50. What is the new price?
25mi/hr=_______m/min
Alberto is heating a solution in his chemistry lab. The temperature of the solution starts at 17°C. He turns on the burner and finds that the solution's temperature increases by 5°C every minute. This graph shows the temperature change.
Edward is playing a game where he draws cards with integers on them from a deck of cards. If the integer is positive he moves forward that many steps, if the integer is negative he moves back that many steps. Edward drew the following cards: 3, -3, -4, 5, 10, -7. Where does Edward end up in relation to where he started? A) 4 steps behind where he started. B) 4 steps in front of where he started. C) 32 steps behind where he started. D) 32 steps in front of where he started.
Adam has 4 1/3 gallons of apple juice, 3 5/9 gallons of orange juice, and 3 1/2 gallons of soda in his refrigerator. How many gallons of juice does Adam have altogether in his refrigerator? A.7 2/3 gallons B.7 5/6 gallons C.7 2/9 gallons D.7 8/9 gallons

If 2/5 divided by blank = 4/5 what is blank

Answers

2/5 ÷ x = 4/5
multiply both sides by x to get it out of the denominator.
2/5 = 4/5x
now divide each side by 4/5 to get x by itself.
2/5 ÷ 4/5 = x
divide fractions by multiplying the reciprocal of the divisor.
2/5x × 5/4 = x
10/20 = x
1/2 = x

So 2/5 divided by 1/2 =4/5

One of the community service groups is going to plant a garden. 2/3 of the space will be used for vegetables. 1/4 of the vegetable space will be used for tomatos. what fraction of the garden will be used for tomatoes? draw a picture below.

Answers

Answer:

1/6 of the vegetables space will be used for the tomatoes

Answer:

1/12 of the Garden

Step-by-step explanation:

When adding fractions, the denominators need to be the exact same number. Therefore, you need to find the LCM. The LCM of 3 and 4 is 12, so all the denominators will be 12.

2/3 * 4/4 = 8/12

1/4 * 3/3 = 3/12

8/12 + 3/12 = 11/12

Now you need to subtract it from 1 (the garden).

12/12 - 11/12 = 1/12

What value of n makes the equation true?(2x^9y^n) (4x2 y 10) = 8x^11y^20
0 1
02
O 10
O 30

Answers

The value of n which makes the exponential value equation true is n = 10

What are the laws of exponents?

When you raise a quotient to a power you raise both the numerator and the denominator to the power. When you raise a number to a zero power you'll always get 1. Negative exponents are the reciprocals of the positive exponents.

The different Laws of exponents are:

mᵃ×mᵇ = mᵃ⁺ᵇ

mᵃ / mᵇ = mᵃ⁻ᵇ

( mᵃ )ᵇ = mᵃᵇ

mᵃ / nᵃ = ( m / n )ᵃ

m⁰ = 1

m⁻ᵃ = ( 1 / mᵃ )

Given data ,

Let the exponential equation be A

Now , the value of A is

A = ( 2x⁹yⁿ ) ( 4x²y¹⁰ ) = 8x¹¹y²⁰

So , from the laws of exponents , we get

mᵃ×mᵇ = mᵃ⁺ᵇ

( 2x⁹yⁿ ) ( 4x²y¹⁰ ) = 8x⁹⁺²yⁿ⁺¹⁰

( 2x⁹yⁿ ) ( 4x²y¹⁰ ) = 8x¹¹yⁿ⁺¹⁰

And , the value of A is = 8x¹¹y²⁰

So , on simplifying , we get

8x¹¹y²⁰ = 8x¹¹yⁿ⁺¹⁰

y²⁰ = yⁿ⁺¹⁰

Since the bases are same , the powers are also same

20 = n + 10

Subtracting 10 on both sides , we get

n = 10

Hence , the exponential equation is solved and n = 10

To learn more about exponents click :

brainly.com/question/28966438

#SPJ7

Answer:

02

Step-by-step explanation:

30is the beginning answer

Find the non-extraneous solutions of the square root of the quantity x plus 9 minus 5 equals quantity x plus 4.

Answers

( x+9) - 5= ( x+4 ) Try this it should help you ^^

Compare and contrast, using complete sentences, a deferred payment plan for a consumer durable versus a college loan

Answers

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

A differed payment plan will have a larger interest component than a college loan.

Answer:

Consumer Durable Deferred Payment, a loan with almost due to a term whose main target is selling products.

A College Loan, a deferred payment with many extra benefits, federal and private whose target is to help on educating the debtor.

Step-by-step explanation:

Consumer Durable Deferred Payment, when a buyer purchases from a seller. And the seller in his turn does not receive the total payment until the expiration date under the contract. The buyer is, therefore, a registered debtor. For instance, James buys a $ 1,600 fridge. To take it off the store He and the Store have an arrangement for $1000 James takes it home, paying  $600, in 2 monthly installments. A deferred payment plan is a loan after something has been delivered.

A College Loan also has a deferred payment plan. Since you're under graduating and the contract expires sometime after you've borrowed. But it has some differences like Federal subsidized plans, differently from forbearance when the student either stop or reduce the values paid, for a determined period. Lower interest rates. There are other benefits like a cosigner, and you can consolidate several loans to pay for the College.

The ordered pair (2, 36) is a solution for which equation(s)? Check all that apply. A. y = (x + 4)2
B. y = 7x2 + 2
C. y = (3x)2
D. y = 2x2

Answers

plug it into each equation and see if both sides are equal:
A. 36 = (2+4)^2 -> 36 = 36 works
B. 36 = 7(2)^2 +2 -> 36 = 30 doesn't work
C. 36 = (3(2))^2 -> 36 = 36 works
D. 36 = 2(2)^2 -> 36 = 8 doesn't work