All categories

2 years ago

What type of conic section is the following equation? 4x2 + 4(y2 - 4) = 0 parabola circle hyperbola ellipse

Mathematics

1 answer:

stepladder [879]2 years ago

8 0

Answer:

Circle

Step-by-step explanation:

The center-radius form of the circle equation is in the format (x – h)² + (y – k)²= r². with the center being at the point (h, k) and the radius being "r". This form of the equation is helpful, since you can easily find the center and the radius.

A circle is a set of points in the plane.

So the conix section with this 4x2 + 4(y2 - 4) = 0 is definitely a circle.

You might be interested in

While shopping for gifts, Asha bought 4 candles and 2 picture frames for $20, Jacob bought 6 candles and 1 picture frame for $18

Jobisdone [24]

Answer:

Step-by-step explanation:

I added all of then and then subtracted 47 from the 50.

4 0

1 year ago

Find each product mentally. show the steps you used.7 × 2.9

JulijaS [17]

Answer is 20.3 and the steps are:
1.) 7 x 9 = 63 move the six over the 2 leave the 3 down
2.) 7 x 2 = 14
3.) 14 + 6 = 20
4.) you have 203 but must bring the decimal down and it makes it: 20.3
I hope I helped and if you're confused please ask questions

6 0

2 years ago

When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage of defectives is 5%. Let

kupik [55]

Answer:

(a) 0.873 (b) 0.007 (c) 0.715 (d) 0.277 (e) 1.25 and 1.09

Step-by-step explanation:

The probability that the random variable X takes the value x is given by P(X=x) = $25Cx 0.05^x0.95^{25-x}$ . Then,

(a) $P(X\leq) = (25C0)(0.05^0)(0.95^{25}) + (25C1)(0.05^1)(0.95^{24}) + (25C2)(0.05^2)(0.95^{23})= 0.873$

(b) $P(X\geq5) = 1-P(X\leq4) = 1 - (0.873 + (25C3)(0.05^3)(0.95^{22}) + (25C4)(0.05^4)(0.95^{21})) = 1 - (0.873 + 0.12) = 0.007$

(c) $P(1\leqX\leq4) = (25C1)(0.05^1)(0.95^{24}) + (25C2)(0.05^2)(0.95^{23}) + (25C3)(0.05^3)(0.95^{22}) + (25C4)(0.05^4)(0.95^{21}) = 0.715$

(d) $P(X=0) = (25C0)(0.05^0)(0.95^{25}) = 0.277$

(e) E(X) = np = (25)(0.05) = 1.25 and $Sd(X) = \sqrt{Var(X)} = \sqrt{np(1-p)} = 1.09$

8 0

2 years ago

What is the product of any number, x, multiplied by 1? explain how you know

Sav [38]

It would be still be X. Any number times 1 is that number. For example 3x1=3 and 325x1=325 :)

5 0

2 years ago

Read 2 more answers

Estimate 540943 plus 382093

erma4kov [3.2K]

I hope this helps you

7 0

2 years ago

Read 2 more answers