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
marta [7]
4 years ago
8

What angle of inclination (to the nearest whole degree) does a stairway make with the floor if the steps have a tread of 11 inch

es and a rise of 6 inches?
Mathematics
2 answers:
Sergeu [11.5K]4 years ago
4 0

Answer:

The angle of inclination stairway with the floor is 28.3 °.

Step-by-step explanation:

In this question, we need to find the angle of inclination a stairway make with the floor. The steps have a tread of 11 inches and a rise of 6 inches. Let the angle is θ.

Using trigonometric identity as :

tan\theta=\dfrac{6\ inches}{11\ inches}

tan\theta=0.54

\theta=28.3^{\circ}

So, the angle of inclination stairway with the floor is 28.3 °. Hence, this is the required solution.

faltersainse [42]4 years ago
3 0

tan x = opposite / adjacent 
tan x = 6 / 11 
tan x = 6 / 11 
x = 28.61 (or 29 degrees rounding to the nearest whole degree) 
You might be interested in
A spinner is divided equally into four colors, red, green, yellow and blue. Find the sum of the probabilities of spinning red, g
grandymaker [24]
Probability=number of specific outcomes / total number of possible outcomes...

Since they want to know the probability of getting all of the colors the probability is just one.

The sum of all probabilities is always equal to one.  In this case:

1/4+1/4+1/4+1/4=1
5 0
3 years ago
A type of sampling in which individuals to be interviewed are selected based on their proportion or quota in the general populat
Butoxors [25]

A type of sampling in which individuals to be interviewed are selected based on their proportion or quota in the general population being polled is known as public opinion.

What is sampling type of public opinion ?

A survey that measures the entire target population is called a census. A sample refers to a group or section of a population from which information is to be obtained. Survey samples can be broadly divided into two types: probability samples and super samples.

The collective opinion of large segment of the population on an issue, candidate or public policy on which the public may be much divided and lake a consensus.

Learn more about the public opinion is here :

brainly.com/question/28049739

#SPJ4

6 0
2 years ago
Mary stated that 2.01 x 10⁶ is less than 4.8 x 10⁴ because 2.01 is less than 4.8. what was mary's mistake ?
katrin [286]

Answer:

Step-by-step explanation:

Scientific notation is always written as a number between 1 and 9.9999999 repeating. There follows a power of 10. I'm not sure which answer would help you see it clearer but

4.8 * 10^4 the decimal is shifted 4 places the right which is 48000 where you have no numbers, you use zeros.

2.01 * 10^6 means that you shift the decimal 6 places to the right.

2010000

So 2 million is larger than 48 thousand.

The other way to do it is just to look at the power. 6 is more than 4. 6 describes the number of places you move. So does 4. 6>4 so that's the larger number.

4 0
3 years ago
Which line is a linear model for the data?
DochEvi [55]

Answer:

Bottom Left Choice

Step-by-step explanation:

If you look at the points, they are traveling up and to the right. So is the line in the graph. Also, the line in the graph is closer to more dots than the others.

5 0
2 years ago
Read 2 more answers
A group of adults and students went on a class trip to Washington, DC. The number of male students was 1 more than 7 times the n
algol [13]
Alright.
So let's say the number of adults is x.
Therefore, the number of boys is 7x + 1.
And then the total amount of girls is 3.5x + 0.5
So then:
x + 7x + 1 + 3.5x + 0.5 = 82
11.5x + 1.5 = 82
11.5x = 80.5
x = 7
So now we can figure out the number of male and female students.
Male students = 7x + 1
7*7 + 1
49 + 1
50
Male Students = 50
Female students = half of 50
50/2 = 25
Female Students = 25
4 0
3 years ago
Other questions:
  • 30 points if you answer this question and please show work !!
    12·1 answer
  • How do I solve this -1/2x-7=-11
    9·2 answers
  • Which of the following equations could be used to solve the given equation?
    14·1 answer
  • What is the approximate volume of a sphere with a radius of 14​
    6·1 answer
  • Help Please.. 1 /2x + y = 4 What is the x-intercept? What is the y-intercept?
    12·1 answer
  • Given 4x = a + b 8c , rearrange the equation for a, in terms of b, c, and x.
    6·1 answer
  • 3w + 9x - 14y + 3w + 2x + 5y
    9·1 answer
  • PLease help will mark brainliest !!!!!
    8·1 answer
  • 40 of the cats at the pet store are black, which is 25% of all cats. How many cats are there at the pet store
    14·2 answers
  • Hal, Zelda, Maya, and Jason each recorded the height and age of five classmates. They used the data to create the tables below.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!