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
Vinvika [58]
3 years ago
15

1. Uma escada possui comprimento igual a 30m. Sabe-se que ela se encontra encostada em um muro, formando com este um ângulo de 6

0º. Podemos afirmar que a altura da escada, em m. é igual am:
Mathematics
1 answer:
topjm [15]3 years ago
6 0

Answer:

The height of the ladder is 15 meters.

Step-by-step explanation:

To find the height of the ladder, we just need to use the cosine relation of the 60 degrees angle.

The adjacent side to the angle is the height of the ladder, and the hypotenuse of the triangle created is the length of the ladder. So, we have that:

cos(60) = height / length

0.5 = height / 30

height = 30 * 0.5 = 15 meters

The height of the ladder is 15 meters.

You might be interested in
Select all the angles that are supplementary to angle 1.
Doss [256]
M and n are the answer
8 0
2 years ago
Is y=5x+4 proportional?
Maurinko [17]
Its proportional. 

(I need 20 characters but thats all really.)


4 0
3 years ago
Please help me with the answer ASAP....
VladimirAG [237]
Q: What is the equation of the exponential curve that passes through the points (0,3) and (5, 96)?

Answer: y=3 (2)x
4 0
3 years ago
I need help plz do each problem
Aleks [24]
1. 4n + 28
2. 30-10x
3. 3m+3n
4. 8+2j
3 0
2 years ago
Someone please help marking brainliest
Luda [366]
Answer: (1, 4)


Explanation: When using the method of elimination, the goal is to eliminate a variable by either adding or subtracting the 2 equations. For this question, you can choose either to eliminate X or Y. I’ll eliminate X as an example:

In order to eliminate a variable, the same variable in both equations must have the same coefficient.

(1) 3x+y=7
(2) 2x+5y=22

Multiply (1) by 2:

(3) 6x+2y=14

Multiply (2) by 3:

(4) 6x+15y=66

Now that X in both equations has the same coefficient of 6, you can subtract the two equations to officially eliminate the variable and solve for Y:

Subtract (4) from (3):

-13y=-52
y=4

Now that you have the value of Y, substitute that into either one of the equations to get X. I’ll use the first equation as an example:

3x+(4)=7
3x=3
x=1

Therefore, the point of intersection is (1, 4).


Hope this helps シ

3 0
2 years ago
Other questions:
  • Mia is three years older than twice her sister brooke's age. The sum of their ages is less than 30. what is the greatest age Bro
    5·1 answer
  • If A = {1, 3, 5} and B = {1, 2, 3, 4, 5, 6} then A ∪ B<br> Ø<br> {1, 2, 3, 4, 5, 6}<br> {2, 4, 6}
    5·2 answers
  • Tyrone took a total of 24 pages of notes during 8 hours of class. In all, how many hours will
    6·2 answers
  • Amin fills up his gas tank with 6 gallons of gas for a cost of $13. How much would it cost to fill a 16-gallon tank?
    9·1 answer
  • 14 POINTS!!!!!!<br> !!!!!!!!!!!!!!!!!!!!!!!!!!!!
    14·2 answers
  • X+2y=10<br> X+y=6<br> Using eliminations to solve each system
    9·2 answers
  • Which equation is the correct translation for the following statement?
    6·1 answer
  • 1. What is the constant rate of change of the table below?
    11·1 answer
  • Which of the following statements is TRUE?
    13·1 answer
  • If 6 lbs of nails are needed for each thousand lath, how many pounds are required for 4250 lath? Round your answer to the neares
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!