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3 years ago

Which type of cross section is formed when the cone is intersected by a plane containing the axis of rotation?

Mathematics

1 answer:

timofeeve [1]3 years ago

7 0

Answer:

Well we need to see the axis of rotation there must be a picture or something to depend on since you provided very few information or whatsoever.

If your picture of information has the cone cut from the middle then it's a circle and if it's from top to bottom it's an isosceles triangles.

Here's a picture I found on the internet to help you understand it better ^-^

Sorry if I didn't help but Good luck!

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uppose germination periods, in days, for grass seed are normally distributed and have a known population standard deviation of 2

natka813 [3]

Answer: 0.701

Step-by-step explanation:

Formula : $EBM =z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$ , where $\alpha=$ significance level , $\sigma =$ Population standard deviation, n= sample size.

As per given, n= 22

$\sigma = 2$

Critical z- value for 90% confidence level : $z_{\alpha/2}=1.645$

Then,

$EBM =(1.645)\dfrac{2}{\sqrt{22}}\\\\=(1.645)\dfrac{2}{4.690416}\\\\\approx0.701$

Hence , error bound (EBM) of the confidence interval with a 90% confidence level= ± 0.701

5 0

2 years ago

There are 4 cards with a picture of a rose and 3 cards with a picture of a daisy. Fiji keeps all the cards face down on the tabl

Rainbow [258]

There are 4 cards with a picture of a rose and 3 cards with a picture of a daisy.

After one rose card is removed, the remaining cards are 3 cards with a picture of a rose and 3 cards with a picture of a daisy. A card is chosen at random,

the probability that the chosen card has rose on it is

$\frac{3}{6} =\frac{1}{2}$ .

The correct choice is (A).

4 0

2 years ago

What is the value of b for the following circle in general form? x2 + y2 + ax +by+c=0

liberstina [14]

Answer:

Step-by-step explanation:

(1). (x - h)² + (y - k)² = r²

where (h, k) are coordinates of a center of the circle with radius r

(2). ( a ± b )² = a² ± 2ab + b²

~~~~~~~~~~~~~~

( 1 , - 2 ) ; r = 3

( x - 1 )² + ( y + 2 )² = 3²

x² - 2x + 1 + y² + 4y + 4 = 9

x² + y² - 2x + 4y - 4 = 0

a = - 2

b = 4

c = - 4

7 0

2 years ago

Need help pls , 20 points no links or else I will report

uysha [10]

Answer:

x=72

Step-by-step explanation:

x=3/4x+18

4(x=3/4+18)

4x=3x+72

x=72

7 0

2 years ago

Read 2 more answers

Which model represent 12×11

sergey [27]

What are the choices? You should have inserted a picture.

4 0

3 years ago