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
sammy [17]
3 years ago
10

I will give branliest ​

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
6 0

Step-by-step explanation:

Height of ladder = 12ft .

Here perpendicular is height to which it reaches .

<u>When </u><u>angle </u><u>is </u><u>3</u><u>0</u><u>⁰</u><u> </u><u>:</u><u>-</u>

=> sin 30⁰ = H/12

=> ½ = H/12

=> H = 12/2

=> H = 6m ( ans )

<u>When </u><u>Angle </u><u>is </u><u>4</u><u>5</u><u>⁰</u><u> </u><u>:</u><u>-</u><u> </u>

=> sin45⁰ = H/12

=> 1/√2 = H/12

=> H = 6*√2*√2/√2

=> H = 6√2 m ( ans )

<u>When </u><u>angle</u><u> </u><u>is </u><u>6</u><u>0</u><u>⁰</u><u> </u><u>:</u><u>-</u>

=> sin60⁰ = H/12

=> √3/2 = H/12

=> H = 12 *√3/2

=> H = 6√3 ( ans )

hope it helped !

You might be interested in
HELP NEEDED!!!!!!
lys-0071 [83]

se necesita dividir 7%4

3 0
3 years ago
Read 2 more answers
How do you solve this question?
Setler [38]
Find out what the variable.
7 0
3 years ago
Engineers measure angles in gradients, which are smaller than degrees. The table shows the conversion of some angle measures in
Schach [20]

Answer:

1.11

Step-by-step explanation:

edgenuity

5 0
3 years ago
Multiply or divide as indicated. x -8 • x -2
erik [133]
Multiply the dot is always multiply
8 0
2 years ago
Read 2 more answers
Which expression is equivalent to x^4 + 4x^2 - 45?
Nikitich [7]

Answer:

( {x}^{2}  - 5)( {x}^{2}  + 9) = 0

Step-by-step explanation:

The given expresion is

{x}^{4}  + 4 {x}^{2}  - 45 = 0

We can rewrite this as:

({ {x}^{2}) }^{2}  + 4 {x}^{2}  - 45 = 0

We obtained a quadratic equation in x²

Let us split the middle term to get:

({ {x}^{2}) }^{2}  + 9 {x}^{2}  -  5{x}^{2}  - 45 = 0

We factor by grouping to get:

{x}^{2} ( {x}^{2}  + 9) - 5( {x}^{2}  + 9) = 0

We factor further to get:

( {x}^{2}  - 5)( {x}^{2}  + 9) = 0

The correct answer is A.

6 0
2 years ago
Other questions:
  • What percent is equivalent to 8/40
    9·1 answer
  • Sorry i meant can someone help me and tell me the estimate?
    12·2 answers
  • Can people please help me on this
    6·1 answer
  • For the equation, y=mx-3, which passes through the point (7,-4), what is the value of m? Need Help!! Thanks!!
    14·2 answers
  • Problem that compares and 0.29
    13·1 answer
  • I need help in the two questions
    12·1 answer
  • *HELP ASAP PLEASE *how can u round a decimal number to the nearest whole number?
    8·2 answers
  • Which statement correctly describes the end behavior of f(x)=ax+b, where a and b are positive numbers?
    14·1 answer
  • How many solutions does this equation have?<br><br> 9 + 5c = 4c
    13·1 answer
  • .
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!