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2 years ago

Here is an equation for a circle: (x-3)^2 + (y+10)^2 = 81.

Mathematics

1 answer:

saw5 [17]2 years ago

7 0

Answer: 2.

Step-by-step explanation: Write the equation of the circle using h = 2, k = –1, and r = ... (x – 1). 2. + y. 2. = 4 is a circle with center (1, 0) and a radius of 2.

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There are 15 European cities that Kevin would eventually like to visit. On his next vacation, though, he only has time to visit

antoniya [11.8K]

Answer:

32760 different schedules are possible.

Step-by-step explanation:

The order is important.

For example

Prague on Monday, Berlin on Tuesday, Liverpool on Wednesday and Athens on Thursday is a different schedule than Berlin on Monday, Prague on Tuesday, Liverpool on Wednesday and Athens on Thursday.

So we use the permutations formula to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

$P_{(n,x)} = \frac{n!}{(n-x)!)}$

How many different schedules are possible?

Choose 4 cities among a set of 15. So

$P_{(15,4)} = \frac{15!}{(15-4)!)} = 32760$

32760 different schedules are possible.

6 0

3 years ago

Please help, I will mark you brainiest, thank you’

stich3 [128]

Answer:

Step-by-step explanation:

6 0

3 years ago

Who drove the fastest? Select the correct answer. A Hector drove 205 miles in 5 hours. B Harlin drove 357 miles in 6 hours. C Ke

nikklg [1K]

Answer:

soooo it D

Step-by-step explanation:

you have to divide

A. h 205 divide by 5 =41 m

B. h 357 divide by 6= 59.5

C. k 419 divide by 7 = 59.8..............

D. s 508 divide by 8= 63.5

8 0

3 years ago

A 36 ft tree casts a 9 ft shadow at the same time a building casts a 15 ft shadow. How tall is the building?

mote1985 [20]

Answer: The height of the tree is 27f t

Step-by-step explanation: We can set up a proportion comparing the height of each object to the length of the shadow.

h/s

h/15=18/10

Cross multiply

10.h= 18*15

10h=270

Use the multiplicative Inverse

10 h/ 10 = <em><u>270 /10 =27</u></em>

7 0

2 years ago

Which pairs of matrices are inverses?

goblinko [34]

Answer:

B is the answer

Step-by-step explanation:

5 0

3 years ago