Line XY intersects plane M and point O.

Which African American led a slave revolt in Virginia in 1831?

Juliette [100K]

Answer:

A. Nat Turner

Step-by-step explanation:

Nat Turner led a 4-day rebellion of both enslaved and free black people in Southampton County, Virginia.

Hope this helps :)

3 0

3 years ago

Read 2 more answers

A bag contains five red marbles, two orange marbles, one yellow marble, and two green marbles. Two marbles are drawn from the ba

Naya [18.7K]

Option C: 0.8889 is the probability of choosing an orange marble and a green marble.

<h2>Given that:</h2>

Number of red marbles is 5

Number of orange marbles is 2

Number of yellow marbles is 1.

Number of green marbles is 2.

<h2>Explanation and Calculations:</h2>

So there are in total 10 marbles.

Two marbles can be chosen in $^{10}C_2$ ways = 90/8

Now the favorable event is when one green marble and one orange marble is chosen. The number of ways this can be done is $^{2}C_1 \times ^{2}C_1 = 4$

The resultant probability is calculated by:

$P(E) = \dfrac{Number \:of\: Favourable \:cases}{ Number\: of\: total \:cases}\\= \dfrac{4}{\frac{90}{2}}\\\\= \dfrac{8}{90}\\\\\approx 0.08889$

Thus the needed probability is 0.08889 given by option C.

Learn more here:

brainly.com/question/13038567

3 0

2 years ago

A researcher is interested in estimating the mean blood alcohol content of people arrested for driving under the influence. Base

UNO [17]

Answer:

We need a sample size of at least 650

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this problem:

We need a sample of size at least n

n is found when $M = 0.005, \sigma = 0.065$

So

$M = z*\frac{\sigma}{\sqrt{n}}$

$0.005 = 1.96*\frac{0.065}{\sqrt{n}}$

$0.005\sqrt{n} = 1.96*0.065$

$\sqrt{n} = \frac{1.96*0.065}{0.005}$

$(\sqrt{n})^{2} = (\frac{1.96*0.065}{0.005})^{2}$

$n = 649.23$

Rounding up

We need a sample size of at least 650

7 0

3 years ago

HELP WILL MARK BRAINLIEST IF GOTTEN RIGHT IF GOTTEN WRONG ON PURPOSE I WILL DLETE U OFF THIS APP:)

Nataliya [291]

Answer:

<h2>I think is d I don't know because I am in 6th grade I never learn those thing </h2>

3 0

3 years ago

Its not telling me how to do this, please help

kenny6666 [7]

Step-by-step explanation:

Actually, it tells you exactly what to do.

First, translate, i.e., move over, the coordinates up by 3:

$(1, 4)\rightarrow (1+3, 4+3) = (4, 7)$

Then reflect this point about the x-axis and to do this,

$(x, y) \rightarrow (x, -y)$

$(4, 7) \rightarrow (4, -7)$

4 0

3 years ago