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notsponge [240]
3 years ago
8

PLZ HELP!! Write the standard equation of a circle with center (−4, 0) and radius 3.

Mathematics
1 answer:
matrenka [14]3 years ago
6 0
(x – h)^2 + (y – k)^2 = r^2
(h, k) is the center (-4, 0)
r=3

(× + 4)^2 + (y - 0)^2=9
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Please help
irina [24]

Answer:

x^2 -2xy -10y^2

x^2 -9xy +4 y^2

3x^3  +6x^2  -24 x +27

Step-by-step explanation:

3x^2-5xy -6y^2 -( 2x^2 -3xy+4y^2)

= 3x^2- 2x^2 -5xy +3xy-6y^2 -4 Y^2

= x^2 -2xy -10y^2


2x^2−5xy+y^2 -( x^2+4xy−3y^2)

=2 x^2 -x^2 -5xy -4xy +y^2 +3 y^2

=x^2 -9xy +4 y^2


7x^3−16x+18- (4x^3−6x^2+8x−9)

= 7x^3 -4x^3 + 6x^2-16x- 8x +18 +9

=3x^3  +6x^2  -24 x +27



8 0
4 years ago
Suppose that the handedness of the last fifteen U.S. presidents is as follows: 40% were left-handed (L) 47% were Democrats (D) I
xxTIMURxx [149]

Answer:

Mathematically, two events are considered to be independent if the following relation holds true,

∵ P(B | A) = P(B)

For the given case,

P(D | L) = P(D)

But

0.13 ≠ 0.47

Since the relation doesn't hold true, therefore, "being left-handed" and "being a Democrat are not independent events.

Step-by-step explanation:

We are given that

Left-handed = P(L) = 0.40

Democrats = P(D) = 0.47

If a president is left-handed, there is a 13% chance that the president is a Democrat.

P(D | L) = 0.13

Based on this information on the last fifteen U.S. presidents, is "being left-handed" independent of "being a Democrat?

Mathematically, two events are considered to be independent if the following relation holds true,

∵ P(B | A) = P(B)

For the given case,

P(D | L) = P(D)

But

0.13 ≠ 0.47

Since the relation doesn't hold true, therefore, "being left-handed" and "being a Democrat are not independent events.

3 0
3 years ago
What is the coefficient of the term x°ys in the
GenaCL600 [577]

Answer:

if it is (2x-y)8

then it is 16x - 8y

x^0y = 1.y = y

so the co efficient of y is -8

Step-by-step explanation:

8 0
3 years ago
Rewrite as a simplified fraction.<br> 3.5 = ?
Allushta [10]

Answer: 3   1/2 ( mixed number)

Step-by-step explanation:

  • First you have to put 3.5 into na fraction
  • In a fraction it is 35/10
  • as a mixed number, it would be:   3   5/10  ( a mixed number )
  • Bur we still have to simplify so simplified would be:  3  1/2 ( mixed number)

7 0
4 years ago
6-12x2<br> also Round it to the nearest tenth.
Zina [86]

Answer:

-10

Step-by-step explanation:

ez?

4 0
3 years ago
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