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
saul85 [17]
3 years ago
13

PLZ HELP!!! It’s timed

Mathematics
2 answers:
solong [7]3 years ago
8 0
First one i believe, d
liubo4ka [24]3 years ago
6 0
Answer:

D

I hope this helps!!!!!
You might be interested in
An aircraft on a reconnaissance mission takes off from its home base and flies 550 miles at a bearing of S 46° E to a location i
Alexandra [31]
<h3>Answer: D) 1692 miles</h3>

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

Explanation:

A diagram is very handy for this type of problem. Refer to the diagram below (attached image). Here are the steps used to form the diagram

  1. Plot point A and make that the home base. Plot point D directly south of point A. I'm skipping B and C because those will be used to form the triangle later.
  2. Imagine you are standing at point A and looking south at point D. Turn 46 degrees toward the east direction (this is what the notation "bearing of S 46° E" means). Then move 550 miles from A to land on point B. This is the location where the plane makes its first turn.
  3. Plot the points E and F, which are north and south of point B.
  4. Imagine we are at point B and looking directly south at point F. Turn 55 degrees toward the west, which is due to the "S 55° W" and then move 483 miles to arrive at point C. This is the plane's location where it turns around to go back to home base.

The diagram below shows all of this visually summarized. We have the segments

  • AB = 550 miles
  • BC = 483 miles
  • AC = x miles

And we have these angles

  • Angle DAB = 46 degrees and Angle ABE = 46 degrees (blue)
  • Angle ABC = 79 degrees (red)
  • Angle ACB = 55 degrees and Angle FBC = 55 degrees (green)

Angle ABC comes from the fact that the blue and green angles add with the red angle to get 180. So we basically need to solve 46+y+55 = 180 which leads to y = 79.

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

Once the diagram is set up, we'll use the law of cosines to find x.

Focus on triangle ABC. Ignore points D,E,F. Ignore any extra lines as well.

The interior angles of triangle ABC are

  • A = 46 degrees
  • B = 79 degrees
  • C = 55 degrees

The sides opposite the angles are

  • a = 483 (opposite angle A)
  • b = x (opposite angle B)
  • c = 550 (opposite angle C)

Now we can apply the law of cosines

b^2 = a^2 + c^2 - 2*a*c*cos(B)

x^2 = 483^2 + 550^2 - 2*483*550*cos(79)

x^2 = 434412.180756441

x = sqrt(434412.180756441)

x = 659.099522649229

x = 659

Side AC, or CA, is roughly 659 miles long.

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

To find the total distance the plane travels, we add up the three sides of the triangle (ie we find the perimeter)

Distance Traveled = AB + BC + CA

Distance Traveled = 550 + 483 + 659

Distance Traveled = 1692 miles

3 0
2 years ago
Find the slope of the line that passes through each pair of point E(4,-4),F(2,2)
elena-s [515]

This has a slope of 3, you can plot it on a graph and count rise over run.

3 0
3 years ago
Read 2 more answers
Which undefined geometric term is described as a two-dimensional set of points that has no beginning or end?
Svetach [21]
The answer is Line. Hope this helps :D
7 0
2 years ago
Read 2 more answers
The work of a student to solve a set of equations is shown:
butalik [34]
Step 2! The reason for that is the student didnt multiplied (15-2z) with -2. But she should have!
8 0
3 years ago
Hey and I supposed to add or multiple when there is volume?​
MrMuchimi

Answer:

mutiply

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Arthur is conducting a study on the preferred study options of students from East County College. He randomly selected 32 studen
    9·1 answer
  • A department store sells a pair of shoes with an 87% markup. If the store bought the pair of shoes for $55.25, what is the selli
    14·1 answer
  • The Campagnolo Hyperon Ultra Two carbon wheel has 11 spokes evenly distributed around the rim of the wheel. What is the measure,
    5·1 answer
  • Answer this and I give more points
    8·2 answers
  • Please answer ASAP<br> Solve: 4y – 8 – 2y + 5 = 0
    14·1 answer
  • if the mean of a symmetrical distribution is 56, which of the values could be the median of the distribution 56,14,28,42
    7·2 answers
  • Can someone teach me how to do number 16???
    11·2 answers
  • 1/2*(6*1+7)+11 show the result
    12·1 answer
  • Please help me, im about to cry cause im so confused. Please explain this to me
    12·1 answer
  • Spencer has a bank account with a balance. Of. $75.Spencer owes$30 to her credit card and she owes $50 for a LCD tv.What would s
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!