1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andreyandreev [35.5K]
1 year ago
14

Give the equation for a circle with the given center and radius. center at (-1, 3), radius = 4

Mathematics
2 answers:
tiny-mole [99]1 year ago
7 0

Answer:

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

Step-by-step explanation:

The standard form of an equation of a circle with center (h,k) and radius r is (x-h)^2 + (y-k)^2 = r^2.  Plugging in those values, we get (x-(-1))^2 + (y-3)^2= 4^2  = (x+1)^2 + (y-3)^2 = 16.

Colt1911 [192]1 year ago
3 0

Answer:

(x + 1)² + (y - 3)² = 16

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

here (h, k ) = (- 1, 3 ) and r = 4 , then

(x - (- 1) )² + (y - 3)² = 4² , that is

(x + 1)² + (y - 3)² = 16

You might be interested in
Solve for k. show work!
dolphi86 [110]

Answer:

71 degrees

Step-by-step explanation:

A right angle is 90 degrees, so the answer is 90-19=71 degrees.

4 0
3 years ago
The length of a rectangle is twice it’s width. If the area of the rectangle is 72ft ^2, find it’s perimeter
alisha [4.7K]

Hi!

length = l = 2 * width = 2 * w

Area = l * w = l * 2 * l = 2 * l^2

2 * l^2 = 72

l^2 = 72/2 = 36

l = square root of 36

l = 6

l = 2 * w => w = l/2 = 6/2 = 3

Perimeter = 2 * l + 2 * w = 2 * 6 + 2 * 3 = 12 + 6 = 18 feet

Hope this helps!

7 0
2 years ago
Help pleaseeeeeeeeeeeeeeee
kupik [55]

Answer:C

Step-by-step explanation:

your answer is 390

First area of the rectangle which formula is bxh base time height.

that gives you 300 since 15x20=300

The for the triangle Formula is Basexheight deivded by 2

so 15x12 devided by 2 =90

300+90=390

Hope this helps you. :)

8 0
3 years ago
What is the area of the parallelogram above! A.54 B.36.36 C.54.55 D 9​
Ne4ueva [31]

9514 1404 393

Answer:

  A.  54

Step-by-step explanation:

The area of a parallelogram is the product of its base length (9) and height (6). The height is measured perpendicular to the base. That is why the height it 6, not 6.06.

  A = bh = 9·6 = 54

3 0
3 years ago
100 POINTS! PLEASE HELP!
Nana76 [90]

Answer:

1. x=5. 2. x=3

Step-by-step explanation:

Ok, so I actually spent 2 hours doing the first problem, I considered the angles to be different at first, i will add my messy work if you are interested haha.

However, I realized that the only way this question can be possible to solve is if the angles are equal, and there is no information given to say that they are different (they are both indicated by one line, while angles that are different are usually represented with multiple lines).

The general method for such problems is to consider the ratio of the sides to the side lengths into which the long side is divided.

For the first picture, the answer can be found by: 9/(2x-1) = 15/(3x). From here, we find that x = 5 (do some algebra). I actually got the same answer when doing this problem with the sine rule.

I am only looking now at the second problem, and i can tell straight away that we can get the solution by solving 3/2.25 = 4/x. x = 3 after some algebraic manipulation.

So yeah, this was a not so fun experience of trying to do this problem without knowing the angles were equal, but i learned a lot haha :)

PS. I am only adding my terrible working out because i hate myself for being so silly

7 0
2 years ago
Read 2 more answers
Other questions:
  • Thank you so much <3333
    10·1 answer
  • 90 POINTS PLEASE HELP Describe the three main trigonometry functions, their ratios and reciprocal functions.
    14·1 answer
  • Which sum or difference identity could be used to prove that sin(π + q) = -sin q
    15·2 answers
  • At a football game between the Cougars and Wolves, there are 80,000 people. There are 20,000 Cougar fans at the game. All the ot
    8·2 answers
  • We described numbers in this lesson using both powers of 10 and using standard decimal value. For example, the speed of light th
    6·1 answer
  • Last year, 50 students attended the winter carnival. This year, 60 students attended the carnival. Which statement below correct
    5·2 answers
  • Which expression is equivalent to 6/12 divided by 2/3
    8·1 answer
  • Sam has sewn three square tablecloths of different sizes. He determines the length of the diagonal of each square tablecloth.
    6·1 answer
  • What is the perimeter of polygon ABCD?
    7·2 answers
  • If the rejection region is +1.10, what will be your decision if the z computed value is 2.34
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!