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3 years ago

What is the general form of the equation of the given circle with its center at A

Mathematics

1 answer:

BabaBlast [244]3 years ago

7 0

General form of circle with center at C(a,b) and radius r is

(x-a)^2 + (y-b)^2 = r^2. Here,

(x-(-3))^2 + (y-12)^2 = 5^2, or (x+3)^2 + (y-12)^2 = 25

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N + 9 >_ 13 (with the “_” under the “>”

Step2247 [10]

Answer:

n >_ 4

Step-by-step explanation:

move 9 to the other side

n >_ 13 - 9

n >_ 4

8 0

3 years ago

Read 2 more answers

-10 + x + 4-5 > 7x - 5

coldgirl [10]

Answer:

x < -1

Step-by-step explanation:

Step 1: Write out inequality

-10 + x + 4 - 5 > 7x - 5

Step 2: Solve

x - 6 - 5 > 7x - 5

x - 11 > 7x - 5

-11 > 6x - 5

-6 > 6x

-1 > x

Step 3: Rewrite

x < -1

3 0

3 years ago

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Joan has 294 black marbles. Joan has 42 times more black marbles than Dan. How many black marbles does Joan has?

lara [203]

Joan has 294 marbles
dan has 7 marbles

5 0

3 years ago

How many axes of symmetry has a rhombus

Kitty [74]

Rhombus has 2 axes of symetry (they contain diagonals).

If rhombus is a square then has 4 axes of symetry.

3 0

3 years ago

A rectangle has a length that is three feet more than twice it’s width. If the area of the rectangle is 90 square feet, then alg

Mkey [24]

Answer:

$Length=27feet\\Width=12 feet$

Step-by-step explanation:

Let, the length of the rectangle be 'L'

and, width of the rectangle be 'W'

length=2*Width+3

$L=(2W+3) feet\\\\$

Area of the rectangle= 90 square feet

Area of a rectangle = Length*Width

$90=(2W+3)*W\\\\2W^2+3W=90\\\\2W^2+3W-90=0\\\\$

Using Factorization Method to solve quadratic equation:

$2W^2-12W+15W-90=0$

Taking common from the equation:

$2W(W-12)+15(W-12)=90\\\\(W-12)(2W+15)=0\\\\W-12=0\\\\W=12 feet$

$2W+15=0\\\\2W=-15\\\\W=-7.5 feet$

The Width cannot be negative, therefore Width(W)=12 feet

$Length=2*Width+3\\\\=(12*2)+3\\\\=24+3\\\\=27 feet$

$Length=27feet\\Width=12 feet$

3 0

3 years ago