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love history [14]
1 year ago
11

What are Conic Sections and how are they formed?

Mathematics
1 answer:
sukhopar [10]1 year ago
4 0

Answer:

In mathematics, a conic section is a curve obtained as the intersection of the surface of a cone with a plane. The three types of conic section are the hyperbola, the parabola, and the ellipse; the circle is a special case of the ellipse, though historically it was sometimes called a fourth type.

Conic sections are formed on a plane when that plane slices through the edge of one or both of a pair of right circular cones stacked tip to tip.

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Cardiovascular disease is a major cause of death and illness worldwide, with high blood pressure and high LDL cholesterol both b
valkas [14]

Answer:

Null and alternative hypotheses:

H0: p1 = p2

H1: p1 ≠ p2

To find the sample proportions, we have the following:

p'1 = \frac{x_1}{n_1} = \frac{113}{3180} = 0.0355

p'2 = \frac{x_2}{n_2} = \frac{157}{3168} = 0.0495

p' = \frac{(x_1 + x_2}{n_1 + n_2} = \frac{113 + 157}{3180 + 3168} = 0.0425

Calculate Z statistics:

z = \frac{(p1 -p2)}{\sqrt{(p'(1-p')*(\frac{1}{n1}+ \frac{1}{n2})}}

= \frac{(0.0355 - 0.0495)}{\sqrt{(0.0425*(1-0.0425) * (\frac{1}{3180} + \frac{1}{3168})}} = -2.764

Z = -2.764

P-value = 0.00285

The pvalue is low.

Since the pvalue is low, reject null hypothesis, H0.

Conclusion:

There is strong evidence that patients experiencing the primary outcome is different for those receiving the treatment compared to those without

7 0
2 years ago
Help. Not good at word problems
earnstyle [38]

Answer:

Option A

Step-by-step explanation:

B U C =  tax returns showing business income + tax filled in 2005

U represents Union relationship that means either B or C

5 0
3 years ago
What is 3.4550 rounded to 1 decimal place? *<br><br> 3<br> 3.4<br> 3.46<br> 3.5
xenn [34]

Answer:

3.5 (D)

Step-by-step explanation:

focusing on the right side of the decimal, 5 rounds 5 to 6. 6 rounds 4 to 5. Anything 5 or above rounds up! So the .5 rounds 4 to 5, making the answer 3.5. So sorry if this doesn't make sense, its kind of hard to explain.

7 0
3 years ago
A scale model of a human heart is 16ft long. The scale is 32:1. How many inches long is the actual heart it represents?
melisa1 [442]
0.5 or 6 inches
The model=32
Actual size=1

32/1= 16/?
  If 32 is 1 foot which equals 12 inches, and 16 is half of  32, then 16 is 0.5 inches or 6 inches
4 0
3 years ago
-62 + 18y = 264<br> -12x - 36y = 130<br><br><br> What solution is this
sergeinik [125]

Answer: x = -\frac{391}{6} =\\-65 \frac{1}{6}\\ -65.166666667\\y=\frac{163}{9}=18\frac{1}{9}  \\18.111111111

Step-by-step explanation: Multiply -36 and 163/9 to get -652. Add 652 to both sides then add 130 and 652 to get 782. Divide both sides by -12 then reduce the fraction 782/-12 to lowest terms by extracting and canceling out 2. The system is now solved.

3 0
2 years ago
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