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Semenov [28]
2 years ago
7

What is the slope of a trend line that passes through the points (5,80) and (7,65)?

Mathematics
1 answer:
umka21 [38]2 years ago
5 0

Answer:

Step-by-step explanation:

the slope would be -15/2

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In which quadrant does the point (6,5) lie
il63 [147K]

Answer:

quadrant 1

Step-by-step explanation:

6 0
2 years ago
Which sequence of transformations on the red triangle will map it onto the missing portion of the square?
anyanavicka [17]

Answer:

A 90° counterclockwise rotation about the origin and then a translation 16 units right and 16 units up

Solution -Rotating the triangle 90° counterclockwise will take the triangle to 3rd quadrant and then further moving it 16 steps right will take it to 4th quadrant and followed by 16 steps upward will take it to the desired position which is in 1st quadrant.

7 0
3 years ago
An airplane is flying overhead at a constant elevation of 405 ft. A person is viewing the plane from a position 3040 ft from the
Gnoma [55]

Answer:

δL/δt = 634,38 ft/s

Step-by-step explanation:

A right triangle is shaped by  ( y = distance between aircraft and ground which is constant and equal to  405 f ) a person who is at ground level 3040 f away from the tower distance x = 3040 f   and the line between the aircraft and the person. Then we can use Pythagoras theorem and write

L ( distance between aircraft and person )

L²  =  x²  +  y²      or    L²  =  x²  + (405)²

Taken partial derivatives with respect to t we get:

2*L*δL/δt    =  2*x*δx/t + 0

Then      L*δL/δt = x*δx/dt

At the moment of the aircraft passing over the tower

x = 3040 ft       δx/δt = 640 ft/s   and L = √ ( 3040)² + (405)²

So   L  = √9241600  + 164025        L = √9405625   L ≈3066,9 ft

Then:

δL/δt = 3040*640/ 3066,9         units   [ ft * ft/s / ft ]   ft/s

δL/δt = 634,38 ft/s

5 0
2 years ago
. Question 1.1. What is the first step in solving x2 + 2x + 3 = 0 by completing the square?. (Points : 1). Factor the left side.
Assoli18 [71]
U r going to subtract 3 from each side of the equation....leaving you with :
x^2 + 2x = -3
6 0
3 years ago
Read 2 more answers
what is the difference between the highest elevation in Alabama and the lowest elevation in Louisiana
tester [92]

Answer:

the difference is 2,415 feet.

Step-by-step explanation:

5 0
2 years ago
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