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
Elanso [62]
2 years ago
13

Two boats A and B Left a Port at the same time on different routes . B travelled on a bearing of 150º and A travelled on the Nor

th side of B . When A had travelled 8km and B had travelled 10km, the distance between the two boats was found to be 12km . Calculate the bearing of A's route from C.
Mathematics
1 answer:
adell [148]2 years ago
6 0

Answer: 67.2°

Step-by-step explanation:

To find angle C, we have to use cosine rule. Therefore,

12² = 8² + 10² - 2 × 8 × 10 × cosC

C = 82.8°

The bearing of A from C will be

= 150° - 82.8°

= 67.2°.

You might be interested in
An Egyptian merchant ship from 1500 BC was about 90 ft long and a Roman gallery
Verizon [17]

Answer:

Step-by-step explanation:

Its 0.38

7 0
3 years ago
Find the slope of the line passing through (-9,3), (-3,-5)
egoroff_w [7]

Answer:

-4/3

Step-by-step explanation:

Slope: (y2-y1)/(x2-x1)

(-5-3)/(-3+9) = -8/6 = -4/3

The slope is -4/3

6 0
3 years ago
At noon, ship A is 50 km west of ship B. Ship A is sailing south at 10 km/h and ship B is sailing north at 20 km/h. How fast is
Lena [83]
So  hmmm check the picture below

so, we're looking for dr/dt then at 4:00pm or 4 hours later

now, keep in mind that, the distance "x", is not changing, is constant whilst "y" and "r" are moving, that simply means when taking the derivative, that goes to 0

\bf r^2=x^2+y^2\implies 2r\cfrac{dr}{dt}=0+2y\cfrac{dy}{dt}\implies \cfrac{dr}{dt}=\cfrac{y\frac{dy}{dt}}{r}\quad 
\begin{cases}
\cfrac{dy}{dt}=30\\
r=130\\
y=120
\end{cases}
\\\\\\
\cfrac{dr}{dt}=\cfrac{120\cdot 30}{130}

6 0
3 years ago
What is the pattern and the 2 next numbers of 7, 14, 8, 16, 10, 20, 14,
Norma-Jean [14]

Answer:

Next 2 numbers are 28,22

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Factor: 81y^2-49<br> Your answer
oksian1 [2.3K]

Answer:(9y-7)(9y+7)

Step-by-step explanation:

81y^2-49

=(9y)^2-(7)^2

=(9y-7)(9y+7)

4 0
3 years ago
Other questions:
  • At what points will the line y=x intersect the unit circle x^2+y^2=1
    6·2 answers
  • A. 86<br> B. 111<br> C. 69<br> D. 71
    13·2 answers
  • How many unit cubes are in the bottom layer of this prism?
    6·2 answers
  • What is the slope between the points (9 -1) and (-2 5)
    5·2 answers
  • Can someone plz help me with this question
    8·1 answer
  • Match the type of sequence to the appropriate example. 1. 2, 9, 16, 23, ... exponential decay 2. 3, 15, 75, 375, ... arithmetic
    12·2 answers
  • - 5.2-(-3.1) + 5.2<br> I
    14·2 answers
  • .) Which expression is equivalent to 15c+20?<br> 15(c+20)<br> 15(c +4)<br> 5(3C+4<br> 5(3c+20)
    9·2 answers
  • Check your solution to 2(a - 2) = 2a - 4
    13·2 answers
  • Use cramer's rule of x-3y+z=13,3x+2y-z=1,5x+7y+2z=9​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!