1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
raketka [301]
3 years ago
8

Someone help pls :,)

Mathematics
1 answer:
Semenov [28]3 years ago
8 0

Answer:

W = 87 degrees

Step-by-step explanation:

First we can rearrange the question so that W is isolated on the left side, which we do by dividing both sides by tan:

tanW/tan = 19.0811/tan

W = 19.0811/tan

Now we can use the inverse tan function on the calculator (tan^{-1}) to calculate it:

W = 19.0811 x tan^{-1}

W = 87 degrees

Hope this helped!

You might be interested in
One-fourth of the girls and one-eighth of the boys in a class retake their school pictures. The photographer retakes pictures fo
pychu [463]
1/4 of the total girls = 16
1/4x = 16
x = 16 * 4
x = 64 girls 

1/8 of the total boys = 7
1/8x = 7
x = 7 * 8
x = 56 boys

for a total of (64 + 56) = 120 students <===
3 0
4 years ago
If g(x)= x=2 and h(x) = 4 - X, what is the value of (gºh)(-3)?
navik [9.2K]

The required value of (g°h)(-3) is 5.

Step-by-step explanation:

Given,

g(x)= x-2 and h(x) = 4 - x

To find (g°h)(-3)

Now,

(g°h)(x) = g(h(x))

= g(4-x)

= (4-x)-2 = 2-x

So,

(g°h)(-3) = 2-(-3) = 5 [ putting x=-3]

8 0
3 years ago
The Arizona Department of Transportation wishes to survey state residents to determine what proportion of the population would l
skad [1K]

Answer:

They need to survey 4145 residents.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

99% confidence level

So \alpha = 0.01, z is the value of Z that has a p-value of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

At least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.02 of the true proportion?

This is n for which M = 0.02. As we have no estimate for the proportion, we use \pi = 0.5. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.02 = 2.575\sqrt{\frac{0.5*0.5}{n}}

0.02\sqrt{n} = 2.575*0.5

\sqrt{n} = \frac{2.575*0.5}{0.02}

(\sqrt{n})^2 = (\frac{2.575*0.5}{0.02})^2

n = 4144.1

Rounding up:

They need to survey 4145 residents.

4 0
3 years ago
What is the solution of
Alecsey [184]

Answer:

x = 50/9

hope it's helpful ❤❤❤

THANK YOU.

5 0
3 years ago
What is the solution to the system of equations below?
zlopas [31]

Answer:

x = 3 and y=4

Step-by-step explanation:

apply elimination method in simultaneous equations

6 0
3 years ago
Other questions:
  • What is the quotient?<br> 5)50<br> O<br> A. 1<br> O B. 5<br> O C. 10<br> o D. 2
    14·2 answers
  • This is the same question from the last one but a better pic
    13·1 answer
  • please help i really need help with this TBT Hw please help me and show work ASAP Please rotate your phone ​
    11·1 answer
  • Solve the question 1.3*105​
    12·2 answers
  • Are 49 35 32 41 47 composite​
    12·1 answer
  • 3 customers entered a store over the course of 6 minutes. At what rate were the customers entering the store in customers per mi
    6·2 answers
  • Write two fractions where the LCD is 20, but the product of the denominators is not 20
    9·1 answer
  • Please help me one some more please
    15·1 answer
  • Which relation is a function? Select all that apply. {(3,1), (-3,1), (4, 3), (-4,3)} {(3,3), (-2,-2), (0, 0), (-4,4)} {(1,4), (2
    10·1 answer
  • Samantha, Danielle, Jeff, and Isaac share minutes on their cell phone plan. Samantha used 1/4 of the minutes, Danielle used 0.5
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!