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If you mean to find 4 cos(2a), then recall the double angle identity for cosine:

cos(2x) = 2 cos²(x) - 1

so that

4 cos(2a) = 4 (2 cos²(x) - 1) = 4 (√3 - 1)

Answer:

200.34

Step-by-step explanation:

Answer:

40 times

Step-by-step explanation:

5+3+2=10

10(x)=200

x=20

Answer: The total amount the water change was -28 gallons by the end of the week OR The total amount the water changed decreased 28 gallons by the end of the week. Depending on how you want to word it.

Hope this helps!

Step-by-step explanation:

Create you equation:

x = the total amount the water changed

d = the amount of days

x = -4d

Insert the known information into the equation and solve:

x = -4d

x = -4(7)

x = -28

Answer:

true

Step-by-step explanation:

Answer:

-5x from both sides

Step-by-step explanation:

When converting an equation to slope-intercept form, you need to isolate the y. The first step in isolating the y is to remove 5x from both sides of the equation:

5x - y = 7

5x - 5x - y = 7 - 5x

-y = 7 - 5x

Now it's just -1y on one side of the equation.

Answer:

The answer is "Grocery sales are lower or no different on Sunday than on other days"

Step-by-step explanation:

Its null hypothesis does not always consider any discrepancy between both the comparable qualities throughout facts and figures. Furthermore, researchers recommend also have lower or even no opposite transactions for Sunday than with other days, because there is no connection between grocery sales and Saturdays and Sundays.

Answer:

23.9

Step-by-step explanation:

you add the percentage to 19

Answer:

i think (17)

Step-by-step explanation:

The perimeter of this compound shape (17) when you add up the sides and find the answer to the missing side.

Answer:

Step-by-step explanation: First, we need to convert 1m to cm, which is 100. Now, we simply do 100 x 40 x 20, which equals 80,000 cubic centimeters.

Hope this helps :)

Answer:

I think 32% (Let me know if I am wrong)

Step-by-step explanation:

Answer:

C) 32%

Step-by-step explanation:

Answer:

1/6

Step-by-step explanation:

Answer:

y=-7x+3

since the formula is y=mx+b where m is the slope and b is the y-intercept.

Answer:

2785,32

Step-By-Step:

30948*0.09

Answer:

2785.32

Step-by-step explanation:

solution,

9 % of 30948

= 9/100×30948

= 278532/100

= 2785.32

9%of 30948 is 2785.32

Answer:

The Slope in 7,2

Step-by-step explanation:

Answer:

x should be 101

Step-by-step explanation:

Answer:

A-1/P=n

Step-by-step explanation:

step 1. look at the parentheses and use inverse operations on both sides

A=P(1+n)

-1       -1

step 2. divide both sides by P

A-1=P(n)

/P    /P

n= A-1/P

The value of n on solving the equation A = P (1 + n) is A / P - 1.

An assertion that two mathematical expressions have equal values is known as an equation. An equation simply states that two things are equal. The equal to sign, or "=," is used to indicate it.

Given:

A = P (1 + n),

Here we can solve the parentheses by using the distributive property as shown below,

A = P × 1 + P × n

A = P + nP

Transform as shown below,

nP = A - P

n = (A - P) / P

n = A / P - 1

Thus, the value of n is A / P - 1.

To know more about equation:

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Answer:

1200

Step-by-step explanation:

1680/1050 = 1920/x

1680x = 2,016,000

x=1200

There are 1200 vertical pixels.

This is a ratio problem, which uses ratios to relate different items in the question. In a ratio problem, it's important to remember to

1) Write the items in the ratio as a fraction.

2) Make sure that you have the same items in the numerator and denominator.

The first step is to assign variables. Let x = vertical resolution of the 23" monitor.

Write the items in the ratio as a fraction.

[tex]\frac{horizontal}{vertical} = \frac{1680}{1050} = \frac{1920}{x}[/tex]

Solve the equation.

      Cross multiply:

[tex]1680*x = 1920 * 1050[/tex]

[tex]1680x=2016000[/tex]

       Isolate variable x:

[tex]x=\frac{2016000}{1680}[/tex]

[tex]x=1200[/tex]

Answer:

here

Step-by-step explanation:

x= - 11 and y =11

Answer:

11:)

Step-by-step explanation:

Answer:

Quick Answer it is A

Step-by-step explanation:

You have developed an angle bisector.

That means that JKM = LKM

B: is incorrect. The 1/2 should go on the angle on the left, not the one where it is

C: is incorrect. 1/2 of the given angle cannot be the same as the bisected angle.

D: is wrong. A bisected angle can't be twice as big as the given angle before it is bisected.

Answer: 14/5

Step-by-step explanation: Use Algebra calculator on math papá.com

Answer:

[tex]m=\frac{14}{5}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Point (2, 5)

Point (-3, -9)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Answer:

c and f

Step-by-step explanation:

Answer:

It will take Ramona 25 months or 2 years and 1 month to pay back for the car.

Answer:

In the first coordinate

Step-by-step explanation:

For x = -3, the point is either located in 2nd or 3rd quadrant.

The general equation of a straight line is -

[y] = [m]x + [c]

where -

[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].

[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.

A coordinate is represented as -

P(x, y)

where -

[x] is abscissa

[y] is ordinate

We have the following coordinate -

(-3, 2)

For x = -3, the point is either located in 2nd or 3rd quadrant

Therefore, for x = -3, the point is either located in 2nd or 3rd quadrant.

To solve more questions on geometry, visit the link below-

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Answer:

$19.44

Step-by-step explanation:

$108 x 18% = $19.44

Answer:0.0001333

Step-by-step explanations :

Answer:

i really dont know what you are saying, but thanks for the points and have a nice day! always smile peeps!