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
Lemur [1.5K]
3 years ago
11

What is the distance BC between the two horizontal parallel bars?

Mathematics
1 answer:
pochemuha3 years ago
8 0
One thing you should notice is that the transverse line and the parallel line form a right triangle. We are told that the base is 4 and the angle between the hypotenuse and the leg is 45°

From this we can solve for the second leg. Here's the list of trig functions

sinФ = opposite/hypotenuse
cosФ = adjacent/hypotenuse
tanФ = opposite/adjacent

Since we are only given the adjacent and we are trying to solve for the opposite leg, we can deduce we use tanФ. So we get

tan45 = x/4

Multiply by 4 to isolate x and we get

4*tan45 = x
Hopes this helps!
You might be interested in
The quotient of n and 7 is 39
Harrizon [31]
N = 273

273 / 7 = 39
Dividend / divisor = quotient


Work Backwards:

n/7 = 39
n = 39 X 7
n = 273
8 0
3 years ago
Write a real word problem for 55x = 1,045
Lady bird [3.3K]

Bob was selling some toys. Every toy cost 55 dollars and he made 1045 dollars in profit on that exact day. How many toys did Bob make on that day?

7 0
2 years ago
Read 2 more answers
does the following system of equations have a solution if so find it. 2x+y+z= 4 x-y+3z= -2 -x+y+z= -2
saul85 [17]
I'd suggest using "elimination by addition and subtraction" here, altho' there are other approaches (such as matrices, substitution, etc.).

Note that if you add the 3rd equation to the second, the x terms cancel out, and you are left with the system

 - y + 3z = -2
   y  + z  =  -2
-----------------
         4z = -4, so z = -1.

Next, multiply the 3rd equation by 2:  You'll get -2x + 2y + 2z = -2.

Add this result to the first equation.  The 2x terms will cancel, leaving you with the system

2y + 2z = -2
  y  +  z  = 4

This would be a good time to subst. -1 for z.  We then get:

-2y - 2 = -2.  Then y must be 0.  y = 0.

Now subst. -1 for z and 0 for y in any of the original equations.

For example, x - (-1) + 3(0) = -2, so x + 1 = -2, or x = -3.

Then a tentative solution is     (-3, -1, 0).

It's very important that you ensure that this satisfies all 3 of the originale quations.
5 0
3 years ago
Mark spent 5/12 of an hour on his math homework and 6/12 of and hour on english homework altogether,what fraction of an hour did
Nastasia [14]
Mark spent 11/12 of an hour doing both math and english homework
8 0
3 years ago
Read 2 more answers
Help me please please
vampirchik [111]
Answer: 25.13
lmk if you need the answer to be explained
4 0
2 years ago
Other questions:
  • A circle has its center at the center of a square with 26-inch sides. Using 3.14 for pi, find the area of the square not covered
    5·2 answers
  • If you have 1996 cookies and someone takes away 2334
    5·2 answers
  • I need help please and thank you
    6·1 answer
  • Without actually drawing the figure, could you form a triangle using side lengths 7, 8, and 18 units? Why or why not.
    6·2 answers
  • E/2+7=4e<br><br> hey does anyone know how to solve for e?
    15·2 answers
  • A coffee distributor needs to mix a(n) Rift Valley coffee blend that normally sells for $10.20 per pound with a Terraza coffee b
    14·2 answers
  • Help!!!!!5th grade math
    5·2 answers
  • PLS HELP WHAT ARE THESE TWO ILL GIVE BRAINLESS AND SHOW UR WORK
    9·1 answer
  • The circumference of a circle is given by the formula C =2πr where r is the measure of the radius?
    5·1 answer
  • If the function f(x) = x 2 has the domain {0, 1, 4, 9}, what is its range?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!