Need the answer for this angle measures<br> A? <br> B (4x-16)<br> C (5x+7)

Textbook: Please write as an expression involving functions of Θ alone.

Setler [38]

Step-by-step explanation:

tan(Θ + 30°)

Use angle sum formula:

tan(A + B) = (tan A + tan B) / (1 − tan A tan B)

So we can write this as:

(tan Θ + tan 30°) / (1 − tan Θ tan 30°)

tan 30° = 1/√3, so:

(tan Θ + 1/√3) / (1 − 1/√3 tan Θ)

Multiply top and bottom by √3:

(√3 tan Θ + 1) / (√3 − tan Θ)

6 0

3 years ago

Consider two x distributions corresponding to the same x distribution. The first x distribution is based on samples of size n =

Tanya [424]

Answer:

The distribution with n = 225 will give a smaller standard error.

Since sigma x = sigma/√n, dividing by the square root of 225 will result in a small standard error regardless of the value of sigma.

Step-by-step explanation:

Standard error is given by standard deviation (sigma) divided by square root of sample size (√n).

The distribution with n = 225 would give a smaller standard error because the square root of 225 is 15. The inverse of 15 multiplied by sigma is approximately 0.07sigma which is smaller compared to the distribution n = 100. Square of 100 is 10, inverse of 10 multiplied by sigma is 0.1sigma.

0.07sigma is smaller than 0.1sigma

8 0

3 years ago

Solve for x 5(x+4)=2x+20+2x

spayn [35]

Hey!
so first distribute the 5 to x + 4
5x+20 = 2x + 20 + 2x
combine 2x and 2x
5x+20 = 4x + 20
Now you want the constant and variable on different sides so subtract 4x to the other side
5x - 4x + 20 = 20
1x + 20 = 20
now subtract the 20 on the 1x + 20 side to the other side
1x = 0
divide by 1
0 divided by anything is 0
So x = 0
Hope this helps!

8 0

3 years ago

Read 2 more answers

What is the value of these coins?

Alborosie

Answer:

$2.39

Step-by-step explanation:

4 pennies=4

2 nickels=10

10 dimes=100

5 quarters=125

$2.39

3 0

3 years ago

Read 2 more answers

A new television set was recently purchased for the common room in a Residence Hall for $428.00 including tax. If the tax rate i

prohojiy [21]

The price of the television set before taxes is $400

<h3>How to find the price of the television set before taxes.?</h3>

The given parameters are:

Price after tax = $428.00

Tax rate = 7%

The price of the television set before taxes is calculated as:

Price after tax = Price before tax * (1 + tax rate)

This gives

$428.00 = Price before tax * (1 + 7%)

Express the percentage as decimal

$428.00 = Price before tax * (1 + 0.07)

Evaluate the sum

$428.00 = Price before tax * (1.07)

Divide both sides by 1.07

Price before tax = $400

Hence, the price of the television set before taxes is $400

Need the answer for this angle measures A? B (4x-16) C (5x+7)