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wel
3 years ago
7

Anyone want to do this for me with work and the answers???

Mathematics
1 answer:
Len [333]3 years ago
8 0
I have the same thing and it suckssss
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At noon, ship a is 180 km west of ship
lawyer [7]
If we let the coordinates of each ship be (x, y) with the positive directions of these coordinates corresponding to East and North, then the positions of the ships t hours after noon are

Ship A
  (-180+35t, 0)

Ship B
  (0, 30t)

The distance between them is the "Pythagorean sum" of the difference in their coordinates:
  d = √((-180 +35t)² +(-30t)²)
    = √(32400 -12600t +2125t²)
The rate of change of this distance is
  dd/dt = (2125t -6300)/√(32400 -12600t +2125t²)

At 4 pm, the value of this rate of change is
  (2125*4 -6300)/√(32400 -12600*4 +2125*4²)
  = 2200/√16000
  ≈ 17.39 km/h

The distance between the ships is increasing at about 17.39 km/h at 4 pm.
5 0
3 years ago
Jolene earned a 75% on her last quiz. If there were 8 questions, how many did she answer correctly
sveticcg [70]

Answer:

6

Step-by-step explanation:

100% / 8 questions= each question is worth 12.5 points

12.5*6=75

Therefore 6 were answered correctly

3 0
2 years ago
Let f(x) = -2x + 7 and g(x) = -6x + 3. Find (f o g) and state its domain.
Vladimir79 [104]

(f\circ g)(x) = -2(-6x+3) + 7 = 12x - 6 + 7 = 12x + 1

The domain is all real numbers as a composition of two linear functions have no restrictions (all linear functions have domain of R)

3 0
3 years ago
The first four terms of a sequence are 16, 22, 28, 34, …
Tju [1.3M]

Answer:

A.)

Step-by-step explanation:

I feel like it's A.) because the number sequence above continues to go on due to addition of 6 to each number. And now you are adding 6 to 10n because as stated before your supposed to add 6 to each number to get the answer in the sequence.

Hopefully I helped God bless !

5 0
3 years ago
Jeff find some bugs he finds 10 fewer grasshoppers than crickets he find 5 fewer crickets then lady bugs if Jeff finds 5 grassho
topjm [15]
20 ladybugs
15 cricket
8 0
2 years ago
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