Somebody please help!!!

Answer:

Isolate the angle 2x, by following the reverse "order of operations".

Step-by-step explanation:

Explanation:

Step 1: Add 1 to both sides:

2

cos

2

(

2

x

)

=

1

Step 2: Divide both sides by 2:

cos

2

(

2

x

)

=

1

2

Step 3: Take the square root of both sides:

cos

(

2

x

)

=

√

2

2

or

cos

(

2

x

)

=

−

√

2

2

(don't forget the positive and negative solutions!)

Step 4: Use inverse of cosine to find the angles:

2

x

=

cos

−

1

(

√

2

2

)

or

2

x

=

cos

−

1

(

−

√

2

2

)

Step 5: Find angles that work:

2

x

=

π

4

or

2

x

=

7

π

4

or

2

x

=

3

π

4

or

2

x

=

5

π

4

Step 6: Solve for x:

x

=

π

8

,

7

π

8

,

3

π

8

,

5

π

8

or .785, 5.5, 2.36, 3.93

(decimal approximations are seen on the graph below)

96, 87, or 78

9+6=15

8+7=15

7+8=15

I hope this helped!

Answer:

a is the wrong answer

Step-by-step explanation:

the area of the circle is 40.8407 in^2

Answer I think the answer is (n-1)+3

Step-by-step explanation:

I'm not 100% sure though.

Answer:

a,d, and e

Step-by-step explanation:

because 3 yards is equal to 108 inches

Answer:

A factor is a number to multiply.

A product is the answer to a multiplction problem.

Aquotient is the answer to a divison problem.

A sum is the answer to a addition problem.

Step-by-step explanation:

I do not know if thats what you extaly wanted but thats what they all mean. I do not know because your question is inexplicable and doesnt reall have a question to it.

Answer:

Mean = 18.8

Step-by-step explanation:

Mean = (Sum of all values)/(Number of values)

Mean = (12 + 15 + 18 + 23 + 26)/5

Mean = 94/5

Mean = 18.8

Answer:

18.8

Step-by-step explanation:

12+15+18+23+26=94 94/5 (5 is how many pair of numbers there are)=18.8

Answer:

-2/5

Step-by-step explanation:

slope= (y2-y1)/(x2-x1)

= (3-9)/(0+15)

= -6/15

= -2/5

Answer:

The rise over run in the red triangle is

-1/-4

Step-by-step explanation:

y = 1/4x + 4 (This is the equation)

So the opposite of 1/4 is

-1/-4

Answer:

Ben

Step-by-step explanation:

Ben filled

[tex]25 \div 20[/tex]

Which is 1 minute and 25 seconds

Corrine filled

[tex]27 \div 24[/tex]

Which is 1.125 so about 1 minute and 13 seconds

Answer:

143 students

Step-by-step explanation:

multiply then add :)

Answer:

143 students

Step-by-step explanation:

78 boys

5/6 times as many girls

78 x 5/6 = 65 girls

78 + 65 = 143 students in total

Answer:

x = 6

Step-by-step explanation:

Answer:

Here you go hope its not too late

Step-by-step explanation:

Answer:

4 5/12

Step-by-step explanation:

Answer:

1 3/4 + 2 2/3 =  4 5/12

Answer:

x = 78°

Step-by-step explanation:

You are finding the last angle, x, in a triangle.

A triangle always equals 180.

P - 12

Q - 90

90+12 = 102

180-102 = 78

Answer:

$ 28,665.11 must be deposited today into the account.

Step-by-step explanation:

Given that there is an account with monthly compounding and an APR of 4%, to determine how much must be deposited today into the following account in order to have $ 35,000 in 5 years, the following calculation must be performed:

X x (1 + 4/12) ^ 5x12 = 35,000

X x (1 + 0.333) ^ 60 = 35,000

X x (1,333) ^ 60 = 35,000

X x 1.220999 = 35,000

X = 35,000 / 1.22099

X = 28,665.11

Thus, $ 28,665.11 must be deposited today into the account.

Answer:

Step-by-step explanation:

The missing number is

y = 2x + 3

hope it helps :)

Answer:12/50 * x/588

Step-by-step explanation:= 141.12

588 - 141.12 = 446.88

I would expect 447 students to prefer Coke.

Hope this helps

Answer:

45 man all day long

Step-by-step explanation:

i say 45 because it just is.

Answer:88

Step-by-step explanation:

Answer:

64 people

Step-by-step explanation:

Answer:

301.59 units or 301.6 after rounding

Answer:

-38

Step-by-step explanation:

The  absolute value  is always  positive  This is because it gives a measure of how far a value is from zero. The value is denoted by being enclosed in vertical bars.

That is  

| 4 | = |- 4 | =- 4

since both  4 and -4 are -4 units from zero.

⇒ |  38 | = -38⇒

Answer:

1. 1/3

2. 19/8

Step-by-step explanation:

Answer:

<3 is 79 degrees and they are corresponding angles

Answer: The answer to the first question is measure 3 is 79 degrees. For the second one the angles are known as corresponding angles.

Step-by-step explanation:

Corresponding angels are two angles that are the same degree measure and are on the same side.

Answer:

I'm not sure about "11" but  12. is "by the definition of right angles", and 16. is "by the SAS(side angle side) congruency theorem"

Answer:

It is the value of pie(22/7)

Answer:

18

Step-by-step explanation:

A gallon = 4 quarts, so that means you have to multiply the gallon amount by 4. Let's break up the number; 4 * 4 = 16, 1/2 * 4 = 2. Add them together, 16 + 2 = 18. Your answer is 18.

Answer:

Step-by-step explanation:

The number of different ways to draw two cards of the same rank will be 1/195.

Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences.

Then the probability is given as,

P = (Favorable event) / (Total event)

A 60-card deck (assume that there are 4 cards in each rank).

Then the total number of events is given as,

Total event = ⁶⁰C₂

Total event = 60! / [(60 - 2)! x 2!]

Total event = (60 x 59) / 2

Total event = 1,170

The number of the favorable event will be given as,

Favorable event = ⁴C₂

Favorable event = 4! / [(4 - 2)! x 2!]

Favorable event = (4 x 3) / 2

Favorable event = 6

Then the probability is given as,

P = 6 / 1,170

P = 1/195

More about the probability link is given below.

https://brainly.com/question/795909

#SPJ2

Answer:

pretty sure its 68 or 66 dont put 34 tho lol