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
Aleksandr-060686 [28]
3 years ago
13

A ladder leans against the side of a house. The angle of elevation of the ladder is 64 degrees

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
5 0

Answer:

The length of the ladder is 14.5 ft

Step-by-step explanation:

For a right triangle

sinx = opposite / hypotenuse

Since we know the angle and the opposite side, we can calculate the hypotenuse

sin 64 = 13/ hypotenuse

Multiply each side by the hypotenuse

hypotenuse * sin 64 = 13

Divide by sin 64

hypotenuse = 13/sin 64

hypotenuse=14.4638

Rounding to the nearest tenth

14.5

You might be interested in
How many cups equal 2 liters
slava [35]

Answer:

8.45351 equal two liters.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the solution of the system of equations.<br><br> x-y=-3<br>-8x+y=45
mezya [45]

Answer:

x = 17, y = 28

Step-by-step explanation:

1. Isolate for x in "x - y = -3, -8":

x - y+y = -3, -8+y

x = -11 + y

2. Substitute "x = -11 + y" in for x in the second expression:

-11 + y + y = 45

3. Simplify:

-11 + 2y = 45

4. Isolate y:

-11+11 +2y = 45+11

2y = 56

\frac{2y}{2} = \frac{56}{2}

y = 28

5. Substitute the new y-value into the first equation:

x = -11 + 28

x = 17

hope this helps!

5 0
2 years ago
Item 4 Find the distance between the two points. (4, −5), (−1, 7)
Rus_ich [418]

Answer:

yes , the distance between the two points is 13 units

5 0
3 years ago
What is 2 hours and 20 minutes as a fraction
Mrac [35]

Answer:

2333/1000 I believe

Step-by-step explanation:

6 0
3 years ago
Solve for x, x^2-3x-5=0
Sophie [7]

Okay so for this one, we have to isolate our X.Lets start by moving the negative 5 on the other side of the equal sign. Remember to not mix a number that is with an X with a normal number (in this case it would be the -3x and the -5). So in putting our -5 on the other sign it becomes positive. Here’s what we have: x^2-3x=5. x^2 is the same thing as 2x.So now you have to minus 3x off of your 2x. This gives us -1x, but can just be put as -x. So now we have -x=5. You’re answer could either be 5 or -5 if you decided to divide it by -1 seeing as your -x is technically -1.

7 0
3 years ago
Other questions:
  • Find the number of possible outcomes.<br> A die is rolled 8 times.
    15·2 answers
  • Which set of numbers does 4/7 belong to?
    10·1 answer
  • Negative three sixth minus five sevenths.
    11·1 answer
  • Find the surface area of the prism 8mm 13mm 7mm
    9·1 answer
  • 20 is 60% of what number
    9·1 answer
  • alex had 156 marbales.anothony had 29 marbales ad izaya had 38 marbels. how many more marbles does alex have than anthony and iz
    8·1 answer
  • The question: Bob and Larry combine to run a 7,460-meter race in 27 minutes. Bob runs an average speed of 300 meters per minute,
    5·1 answer
  • A Fifty dog owners and 50 people who do not own dogs are each given a test to evaluate their stress levels. Dog owners are found
    5·1 answer
  • Find the value of the expression 3q - 6 when q = -2
    10·1 answer
  • Find the arthmetic and the geometric means of 4 and 9
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!