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
castortr0y [4]
3 years ago
14

Can someone answer this please

Mathematics
2 answers:
tatiyna3 years ago
7 0
I think it is C. so hope its correct


choli [55]3 years ago
5 0
The awenser of the problem is A
You might be interested in
How to find the measure of an exterior angle on a triangle
nexus9112 [7]
Hi there!

There are many ways to find the measure of an exterior angle of a triangle. I'll explain the easiest method to you. As you can see in the image, a line is drawn extending a side of the triangle. In order to find the measure of the exterior angle, we can subtract the measure of the adjacent interior angle from 180 (a straight angle). Doing this subtraction will give us the measure of the exterior angle.

Hope this helps!! :)

6 0
3 years ago
Read 2 more answers
INFO: The chairs are evenly spaced around
lana66690 [7]

Answer: About 72 feet

The more accurate value is roughly 71.7260397 feet (however, this value isn't fully exact either).

======================================================

Explanation:

Check out the diagram below. It's effectively the same diagram your teacher provided, but I've added points M and N. I've left out any unnecessary lines.

  • M = center of the circle
  • N = location where the cable is anchored to the ground

We're told that "(the length of cable from) E to the ground is 35 feet", so this is the red portion of cable that I've marked this as NE = 35, ie segment NE is 35 feet long. We're also told that NF = 40 feet, which is also shown in red.

The blue portions are chords of the circle. We're given one chord as LE = 80 ft, while the other chord JF is what we want to find out.

-----------------

What we need to find is the radius of this circle. Right away, it's not clear what the radius is; however, we can use the chord LE = 80 to help find it.

It turns out that the chord length c is connected to the radius r and central angle theta like so:

c = 2*r*sin(0.5*theta)

where theta must be in radian mode. The central angle subtends the arc that forms the chord in question.

If we started at point L, and counted the number of spaces to get to E while going clockwise, then we can see that there are 5 spaces

Those five spaces could be written as

  1. The jump from L to A
  2. The jump from A to B
  3. The jump from B to C
  4. The jump from C to D
  5. The jump from D to E

Or you could mark it as such on the diagram for a visual reference. Overall, the circle has been cut into 12 equal slices. So going from L to E, going clockwise, will have us take up 5/12 of the full circle.

There are 2pi radians in a full circle, meaning the central angle LME is (5/12)*2pi = 5pi/6 radians.

-----------------

Plug theta = 5pi/6 and c = 80 into the formula mentioned. Isolate the radius.

c = 2*r*sin(0.5*theta)

80 = 2*r*sin(0.5*5pi/6)

80 = 2*r*sin(5pi/12)

80 = 2*r*0.9659258

80 = 2*0.9659258*r

80 = 1.9318516r

1.9318516r = 80

r = 80/1.931 8516

r = 41.4110483

The radius is approximate. The radius is in feet. Make sure your calculator is in radian mode.

-----------------

Now that we know the radius, we can determine how long chord JF is.

The central angle for chord JF is angle JMF

If we start at J and go to F, along the shorter path, then we've gone 4 spaces. This is 4/12 = 1/3 of the full circle. So the radian measure of angle JMF is (1/3)*2pi = 2pi/3 radians.

So,

c = 2*r*sin(0.5*theta)

c = 2*41.4110483*sin(0.5*2pi/3)

c = 71.7260397

Chord JF is roughly 71.7260397 feet long.

When rounding to the nearest foot, that's about 72 feet.

6 0
2 years ago
Efia draws this scale drawing a two famous landmarks each inch in the drawing represents 400 ft on the actual landmark how much
Bess [88]

Answer:

x4800 inch

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Gloria's pontoon boat holds 24 gallons of gas.
Darya [45]

Answer:

ok so if the girl added 13 gallons of gas 11 gallons were already there, if 14 gallons then 10 gallons were there, if 13,4 then 10,6 gallons were already there

7 0
3 years ago
40% of collage students scored more than 70% on a math test. 120 students scored below that. How many total students took the ma
monitta
The answer to your question is 200.
100%-40%=60%
60%=120 students
60%÷3=20%
120÷3=40
20%=40
20%X5=100%
40X5=200
3 0
3 years ago
Other questions:
  • In the diagram below, O is circumscribed about quadrilateral ABCD. what is the value of x?​
    15·2 answers
  • WILL GIVE BRAINLIEST!!!!!
    11·1 answer
  • PLEASE HELP ME!!! needing help now!
    7·1 answer
  • Through what fraction of circle did the minute hand turn
    13·1 answer
  • A dog groomer could clean four dogs in an hour how many could they clean in 5/6 of an hour
    15·1 answer
  • Hey guys need some help can you help me Do in a few hours HURRY QUICK! :) The question is ,The temperature is
    6·2 answers
  • CAN SOMEONE PLEASE HELP!!
    12·1 answer
  • if three cubes of sides 3cm each are joined end to end, then find the length, breadth and height of the resultant cuboid​
    8·1 answer
  • 3. Find the angle and hence the shaded area when:
    10·1 answer
  • Find x in the following figure
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!