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3 years ago

What is the equation of a circle with center (2, -5) and radius 4?

Mathematics

2 answers:

Anuta_ua [19.1K]3 years ago

8 0

Answer:

(x-2) ^2 + ( y+5)^2 = 16

Step-by-step explanation:

The equation for a circle is given by

(x-h) ^2 + ( y-k)^2 = r^2 where (h,k) is the center and r is the radius

(x-2) ^2 + ( y- -5)^2 = 4^2

(x-2) ^2 + ( y+5)^2 = 16

tia_tia [17]3 years ago

6 0

Answer:

(x-2)^2 +(y+5)^2=4^2

Step-by-step explanation:

x minus 2 squared + y plus 5 squared = radius squared

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Sound travels through sea water at a speed of about 1500 meters per second. At this rate, how far will sound travel in 2 minutes

Mariulka [41]

Answer:

180,000 m

Step-by-step explanation:

There are 60 seconds in a minute, so:

2 min × 60 s/min = 120 s

Distance = rate × time

d = 1500 m/s × 120 s

d = 180,000 m

8 0

3 years ago

Frankie descends 56 ft in 4 minutes. what is frankies average change in position per minute from which he started.

ArbitrLikvidat [17]

Answer:

14?

Step-by-step explanation:

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4 years ago

PLEASE SHOW YOUR WORK AND HOW YOU GOT IT Valerie swam one lap in S seconds, faster than Peter by 4 seconds. Which of the followi

serg [7]

Answer:

Step-by-step explanation:

B because it says Valerie is 4 seconds faster than Peter so that should be S-4 but they tell you to find the average which is S-2 so that's your answer.

Hope I got this correct, I haven't done average in a long time.

6 0

3 years ago

A phone company offers two monthly plans. Plan A costs $25 plus an additional $0.07 for each minute of calls. Plan B costs $16 p

Blizzard [7]

Answer:

1) For 450 minutes of calling the two plans cost the same.

2) The cost when the two plans cost the same is $56.5.

Step-by-step explanation:

The cost of both plans can be modeled by linear functions.

Plan A:

$25 plus an additional $0.07 for each minute of calls.

So, for t minutes of calls, the cost is:

$A(t) = 25 + 0.07t$

Plan B:

$16 plus an additional $0.09 for each minute of calls.

So, for t minutes of calls, the cost is:

$B(t) = 16 + 0.09t$

Q1: For what amount of calling do the two plans cost the same?

This is t for which:

$A(t) = B(t)$

$25 + 0.07t = 16 + 0.09t$

$0.02t = 9$

$t = \frac{9}{0.02}$

$t = 450$

For 450 minutes of calling the two plans cost the same.

Q2: What is the cost when the two plans cost the same?

This is A(450) or B(450), since they are the same.

$B(450) = 16 + 0.09*450 = 56.5$

The cost when the two plans cost the same is $56.5.

4 0

4 years ago

Pablo Picasso’s Head of a Women, is an example of a(n) ______________.

lina2011 [118]

Answer:

Sculpture in the round.

Step-by-step explanation:

Option A, sculpture in the round, is the right answer.

This is Picasso’s initial Cubist sculpture illustrations the master made of his girlfriend Fernande Olivier in the year 1909. After the return of the couple from a tour to Spain Picasso created the bust in Paris. As in his old Cubist pictures, the frame of her sculpted head is faceted into miniature pieces. Meant to be viewed in the round, the production switches form when seen from various corners. Therefore, it is clear that Pablo Picasso’s "Head of a Women" was a sculpture in the round.

8 0

4 years ago

Read 2 more answers