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3 years ago

Which Contacts section results from the intersection of the plane and the double nap cone shown in the figure

Mathematics

1 answer:

attashe74 [19]3 years ago

8 0

Answer:

your choice is correct: hyperbola

Step-by-step explanation:

When the plane intersects both naps of the cone, the result is a hyperbola. When only a single nap is intersected (and the plane is parallel to the edge of the cone), the curve is a parabola. An ellipse or circle results when the plane crosses both edges of the cone on the same nap.

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Find the value of v and w to the nearest tenth.

Anton [14]

Answer:

Trigonometry Ratio:

Sin65°=v/15

v=15 sin65°

v=13.6°

Sinw°=v/21

= 13.6/21

w=sin^{-1}(13.6/21)

w=40.3°

Hope it helps! :)

6 0

2 years ago

Suppose a researcher is conducting a hypothesis test for a mean and finds a test statistic of z=2.3z=2.3 . Which of the choices

Galina-37 [17]

Answer:

Option c. The result is significant at the 0.020.02 level.

Step-by-step explanation:

We are given the following in the question:

We are conducting a one tailed hypothesis test with alternate hypothesis

$H_A: \mu > \mu_0$

The z test calculated for the same is

z=2.3

We calculate the p-value from the standard normal table.

p value = 0.010724 at 0.05 significance level.

The result is significant

p value = 0.010724 at 0.01 significance level.

The result is not significant

p value = 0.010724 at 0.02 significance level.

The result is significant at 0.02 significance level.

Thus, the correct answer is

Option c. The result is significant at the 0.020.02 level.

3 0

3 years ago

You have a 3 card deck containing a king, a queen, a jack. You draw a random card. Without putting it back, you draw a random se

jarptica [38.1K]

You have a 1 in 3 chance of drawing a queen. so about 33%

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3 years ago

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Make up this problem yourself 3 divided by 1/2

Helen [10]

Answer:

3 : (1/2) = $\frac{6}{1} =6$

Step-by-step explanation:

Divide: 3 : $\frac{1}{2} =\frac{3}{1} *\frac{2}{1} =\frac{3 * 2}{1*1} =\frac{6}{1} =6$

Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of $\frac{1}{2}$ is $\frac{2}{1}$ ) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators.

In words - three divided by one half = six.

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3 years ago

Write your answer as a complex number in standard form, I need help please

irakobra [83]

10. -0.12+0.16i

11. 1.5+1.5i

4 0

3 years ago

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