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Lerok [7]
3 years ago
13

Find the equation of the circle with center at (-1, 3) and radius of 4.

Mathematics
1 answer:
Nataly [62]3 years ago
7 0

Answer:

(x+1)^2 + (y-3)^2 = 16

Step-by-step explanation:

The equation of 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--1)^2 + (y-3)^2 = 4^2

(x+1)^2 + (y-3)^2 = 4^2

(x+1)^2 + (y-3)^2 = 16

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What is the area of this square (look at the picture)
ikadub [295]

Answer:

484

Step-by-step explanation:

22 times 22

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3 years ago
jemboy wants to make his 8 meter square pool into a rectangular one by increasing its length by 2m and decreasing its width by 2
mel-nik [20]
Side = 8m
He increases length by 2m and reduces width by 2m
(a.) New dimensions will be -
Length = 10m and Width = 6m
(b.) Area = length x breadth (or width)
 here we will use the special product (x+y) (x-y)
length = (x+y) and width = (x-y)
area = (8+2) x (8-2)
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3 0
4 years ago
Read 2 more answers
Given two sets of polar coordinates that could be used to play the given point
topjm [15]

Answer:  a.  (2.5, 300°)  and  (-2.5, 120°)

               b.  (4, 270°)    and   (-4, 90°)

<u>Step-by-step explanation:</u>

Polar coordinates are written as (r, θ)    where

  • r is the radius
  • θ is the angle

In the first graph, the radius is 2.5 and the angle is 300° --> (2.5, 300°)

You can also list the radius as -2.5 at angle 120° --> (-2.5, 120°)

                                                                           ↓

                                                                    (300 - 180)

In the second graph, the radius is 4 and the angle is 270° --> (4, 270°)

You can also list the radius as -4 at angle 90° --> (-4, 90°)

                                                                      ↓

                                                                (270 - 180)

5 0
3 years ago
A manufacturer has designed a process to produce pipes that are 10 feet long. The distribution of the pipe length, however, is a
Nata [24]
I think the answer is D
7 0
4 years ago
Travis has decided to budget his spending money. He can spend no more than $ 143.15 every month. He has also decided to spend 5.
dalvyx [7]

Answer:m<$23.09

Step-by-step explanation: This question is tricky as there are unexplained variables.

Travis plans spending $143.15 every month but only two expenses were given to us, so other possible expenses may or may not be expended in this particular month.

That’s why we must include an inequality here.

Okay, back to the question.

Travis plans spending 5.2 times movie money on video games, my kinda dude.lol

Hence, 5.2m=v

m=movie budget

v=video games budget

But m+v<=143.15, the total proposed budget. Let’s replace v with 5.2m,

We have,

m+5.2m<=143.15

6.2m<=143.15

m<=23.0887

(We’ll have to approximate to the nearest cent)

m<$23.09

4 0
3 years ago
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