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erastova [34]
4 years ago
8

Pacific gray whales migrate annually from the waters near Alaska to the waters near Baja California, Mexico, and back. The whale

s travel a distance of about 500 mi each way at an average rate of 91 mi per day. about how many days does it take the whales to migrate one way?
Mathematics
1 answer:
Andrew [12]4 years ago
5 0

Answer:

5.5 days (rounded up)

Step-by-step explanation:

500/91

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find the equation of a circle concentric with the circle x^2+y^2-2x-10y+1=0 passing through the point (2,-3)​
Natalija [7]

Answer:

Step-by-step explanation:

x²+y²-2x-10y+1=0

compare with x²+y²+2gx+2fy+c=0

center is (-g,-f)

radius=√(g²+f²-c)

2g=-2

g=-1

2f=-10

f=-5

radius=(1,5)

c=1

let eq. of circle be x²+y²-2x-10y+c=0

∵ it passes through (2,-3)

2²+(-3)²-2(2)-10(-3)+c=0

4+9-4+30+c=0

c=-39

eq. of circle is is x²+y²-2x-10y-39=0

7 0
2 years ago
PLEASE HELP ASAP! <br> QUESTION IN PHOTO
IgorLugansk [536]

Answer: The answer is the last one. Hope this helps!

5 0
4 years ago
How do u solve -15-6m= -10m +5
sleet_krkn [62]

Answer:

m=5

Step-by-step explanation:

first you would add 10m to both sides giving you -15+4m=5, then you add 15 to both sides giving you 4m=20 then you divide by 4 on both sides giving you m=5

6 0
4 years ago
-5+x over 22=-1 solve for x
r-ruslan [8.4K]
-5 + x/22 = -1

+ 5 for both side

x
--- = 4
22

multiply by 4

x = 22(4)

x = 88
5 0
3 years ago
A project has three paths and a desired completion time of 43 days. The first path has a 70 percent probability of being complet
8090 [49]

Answer: The required probability is 0.82.

Step-by-step explanation:

Since we have given that

Number of projects = 3

So, probability of getting each project = \dfrac{1}{3}

Probability of first path being completed in 43 days = 0.7

Probability of second path being completed in 43 days = 0.85

Probability of third path being completed in 43 days = 0.90

So, Probability that the project will be completed on time would be

\dfrac{1}{3}(0.7+0.85+0.90)\\\\=\dfrac{1}{3}\times 2.45\\\\=0.82

Hence, the required probability is 0.82.

3 0
3 years ago
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