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
gregori [183]
3 years ago
11

Thanks for your help!

Mathematics
2 answers:
Semmy [17]3 years ago
8 0

Answer:

6.3 ft to the nearest tenth.

Step-by-step explanation:

The length of the ladder is 11 ft, the bottom of the ladder is 9 ft from the side of the house.

The height of the house can be calculated using Pythagoras Theorem.

h^2+9^2=11^2

This implies that;

h^2+81=121

Group similar terms;

h^2=121-81

h^2=40

Take positive square root of both sides;

h=\sqrt{40}

h=2\sqrt{10}

h\approx6.3 to the nearest tenth

yan [13]3 years ago
3 0

a and b are the two leg sides

c is the longest side.

a^2+b^2=c^2

a=x

b=9

c=11

a=c-b

11 squared is 121

9 squared is 81

121-81=40

The square root of 40, rounded to the nearest hundredth, is 6.32

You might be interested in
What is the difference between a triangular number and a cube number?
pav-90 [236]
A cube number is an integer which is a third power of another integer.

A triangular number is a number that counts the objects that can form equilateral triangle (sorry, I cribbed it a little from Wikipedia; it's difficult to explain). Just look at the picture.
<span />

8 0
3 years ago
What is greater than one in 5 1/2
Ira Lisetskai [31]
I think 6 1/2,but I could be wrong so take that with a grain of salt
5 0
3 years ago
When Zack checked his solution, it didn’t work. What was his mistake?
KatRina [158]

Answer:

he whent up and not down and left and not right

Step-by-step explanation:we just is messed up in life

4 0
3 years ago
Read 2 more answers
Work out the perimeter of the triangle when the sides are : 3x-5 2x 19-x
mr Goodwill [35]

Answer:

4x + 14

Step-by-step explanation:

The perimeter of the triangle is equal to the sum of its three sides.

The sides of the triangle are 3x-5, 2x, and 19-x.

Calculate their sum.

3x - 5 + 2x + 19 - x

Rearrange.

3x + 2x - x + 19 - 5

Add or subtract like terms.

4x + 14

The perimeter of the triangle is 4x + 14.

5 0
3 years ago
Read 2 more answers
Debra found that 6 of the 24 students in her class own a cell phone . What is the ratio of students that own a cell phone to stu
ale4655 [162]
6:18 students in Debra's class own a cellphone. Because there are 24 people in total. Minus the people who already own cellphones. Leaving 18 without cellphones. The ratio is people who have cellphones to people who do not. 
24-6=18. Thus, the ratio would be 6:18 
8 0
3 years ago
Other questions:
  • Four points are always coplanar if: Check all that apply. A. all of them are collinear B. they are not in the same plane. C. thr
    7·1 answer
  • The members of the school's mathematics club shared equal amounts for a new digital light processing (DLP) projector amounting t
    10·1 answer
  • can the locus of the points idea can be used to define straight lines,cicles,and even more complex shapes such as parables
    6·1 answer
  • Roy works more than 30 hours each week. He has worked 17 hours already. Write and solve and inequality that shows the numbers of
    15·1 answer
  • If 12 eggs are needed to make one angel food cake how many cakes can be made with 60 eggs
    15·2 answers
  • The rectangular prism is increased by a factor of three. By what factor does the volume increase?
    15·1 answer
  • HELP QUICK PLEASE!!!
    11·1 answer
  • The price of bottles water at the concession stand was doubled. Scott says this is 50% increase, but David says it’s a 100% incr
    6·1 answer
  • Let f(x)=x−4<br> and g(x)=−2x+4<br><br> Find g(f(2))<br><br> 0<br><br> −12<br><br> 8<br><br> −8
    9·2 answers
  • Question 9 of 10 Which of these groups of values plugged into the TVM Solver of a graphing calculator will return the same value
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!