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lina2011 [118]
3 years ago
7

At noon, ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 30 km/h. How fast is

the distance between the ships changing at 4:00 PM?
Mathematics
1 answer:
Marrrta [24]3 years ago
4 0

Answer:

150 km/h

Step-by-step explanation:

because it's then 2 together

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The line y=-1/3x+4 passes through which of the following points
e-lub [12.9K]

Answer:

The line passes through the points ( 0 , 4 ) and ( 12 , 0 )

Step-by-step explanation:

Given equation of line as :

y = - \frac{1}{3} x + 4

Let the points through which the line passes are

( x_1 , y_1 ) , ( x_2 , y_2 )

Now, for x = 0 , The line equation is y = - \frac{1}{3} × 0 + 4

I.e for x = 0 , y = 0 + 4 = 4

So,  ( x_1 , y_1 ) = ( 0 , 4 )

Again , for y = 0 , The line equation is 0 = - \frac{1}{3} × x + 4

I.e  for y = 0 , The line equation is 4 = \frac{x}{3}

Or, for y = 0 , x = 4 × 3 = 12

So , ( x_2 , y_2 ) = ( 12 , 0 )

Hence The line passes through the points ( 0 , 4 ) and ( 12 , 0 )  Answer

5 0
3 years ago
Read 2 more answers
Jessica stands 150 feet from the base of a tall building. She measures the angle from her eye to the top of the building to e 84
hram777 [196]


This is an angle of elevation problem. So, we use the tangent ratio.

tan84=x/150


this then becomes

x=150(tan84)


which simplifies to

150∗(tan84)=1427


Since she only begins to observe the building 5 feet higher than where it starts, we add 5+1427, so your final answer is 1432 feet tall!
5 0
3 years ago
Jocelyn writes the equation of a line that passes through the point (4,0) and that is perpendicular to the line y= -2X + 1. IF J
raketka [301]
Y = 2x - 8 
I used a graphing calculator to figure it out.
6 0
3 years ago
Legend has it that a bull sasquatch in rut will howl approximately 9 times per hour when it is 40°f outside and only 5 times per
ahrayia [7]

The answer is 13.

To solve this question, you need to determine the slope of the function. if howl  is y and the temperature is x of the graph, the slope would be:

9-5/(40-70)= 4/-30= -2/15

Using one of the point and the slope, you can find the number of howl

-2/15= 9-y/40-(-20)

9-y= -2/15 * 60

9-y= -4

y= 9+4= 13

8 0
3 years ago
HELPPPP PLEASE<br>60 POINTS​
soldi70 [24.7K]

Answer:

1056

Step-by-step explanation:

Find the area of each square and add them to find the area of the rectangle

The area of a square = side * side

The areas are:

1*1= 1

4*4 = 16

7*7 = 49

8*8 = 64

9*9 = 81

10*10 = 100

14*14 = 196

15*15 = 225

18*18 = 324

The sum of the areas =

324+225+196+100+81+64+49+16+1

= 1056 units ^2

3 0
3 years ago
Read 2 more answers
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