2 years ago

Pls help me answer this

Mathematics

1 answer:

Serjik [45]2 years ago

6 0

Step-by-step explanation:

hope it would help you...

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In the diagram below, points A and B represent two airplanes. How far apart are the airplanes?

AleksAgata [21]

Using the Law of Cosines:

d= √(840^2 + 800^2 - 2*840*800*cos(105))

d = √1693452.796

d = 1301 miles.

The answer is B.

7 0

3 years ago

A river is flowing at the speed of 2 miles per hour. A kayaker moves 528 feet upstream in 20 minutes. At this rate, how fast wou

CaHeK987 [17]

D=rt
r=(boatrate+riverrate)=(x+2)mph

d=528ft=528/5280mi=1/10mi
t=1/3hr
remember to keep the same units
so

1/10=(x+2)(1/3)
times both sides by 3
3/10=x+2
minus 2 or 20/10
-17/10=x
-1.7=x
it would be going -1.7mph (means going backwards)

4 0

3 years ago

Matrices C and D are shown below.

yKpoI14uk [10]

Answer:

it's b

Step-by-step explanation:

hope this helps! :D

4 0

3 years ago

Read 2 more answers

Find P on AB that is 2/3 of the distance from A(-3,-5) to B(9,4).

Ludmilka [50]

A line segment can be divided into ratios.

The coordinate of P on line segment AB is (5,1)

Given

$A = (-3,-5)$

$B = (9,4)$

The position of P from A to B is:

$P_A = \frac 23$

So, from P to B would be:

$P_B =1 - \frac 23$

$P_B = \frac 13$

So, the ratio is:

$m : n = \frac 23 : \frac 13$

Simplify

$m : n = 2 :1$

The coordinate of point P is:

$P = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})$

So, we have:

$P = (\frac{2 \times 9 + 1 \times -3}{2 + 1},\frac{2 \times 4 + 1 \times -5}{2 + 1})$

$P = (\frac{15}{3},\frac{3}{3})$

$P = (5,1)$

Hence, the coordinate of P is (5,1)

Pls help me answer this​

Pls help me answer this