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3 years ago

6

Definition: The ___ tells how fast a line rises or falls between any two points on that line. Algebraically it is expressed as (

y2 - y1)/ (x2 - x1) for the line passing through (x1, y1) and (x2, y2).

2 answers:

hammer [34]3 years ago

8 0

Correct Answer: Slope

liraira [26]3 years ago

7 0

The answer is the slope which is rise over run.

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You construct a sample in which Whites, Blacks, and Latinos are randomly selected from the U.S. adult population. The compositio

love history [14]

Answer:

Stratified random sample error

Step-by-step explanation:

When you use stratified sampling, you divide the total population or universe into strata (non-overlapping homogeneous groups). Then you draw a simple random sample (SRS) from each stratum (singular of strata).

You must make sure that your strata does not overlap, e.g. Latinos are not a race, but a culture and they come in all colors (whites, native indigenous, blacks, even Asians). That is why sometimes the term non-Hispanic whites is used.

Another reason why the sampling error might have occurred is that not all Caucasians are white, e.g. Arabs, people from northern Africa and most middle eastern Jews are considered Caucasians but their skin is tanned and it can be as dark as the skin of a Native American.

The US census only recognizes 5 races:

Whites (includes Hispanic whites and other Caucasians)
African Americans
American Indian or Alaska Native
Asian
Native Hawaiian or Other Pacific Islander
the sixth category is two or more races

As you can see, there is a lot of room for mistakes when you try to categorize people into races.

8 0

3 years ago

Use the drawing tool(s) to form the correct answer on the provided number line.

miskamm [114]

Answer:

x= 1, x= 4, and x= -3

Step-by-step explanation:

Use the possible combinations of factors of the constant term of the polynomial to find a first root. Try 1, -1, 2, -2, 3, -3, etc.

Notice in particular that x = 1 is a root (makes f(1) = 0):

$f(1)=x^3-2*1^2-11*1+12=1-2-11+12=13-13=0$

So we know that x=1 is a root, and therefore, the binomial (x-1) must divide the original polynomial exactly.

As we perform the division, we find that the remainder of it is zero (perfect division) and the quotient is: $x^2-x-12$

This is now a quadratic expression for which we can find its factor form:

$x^2-x-12=x^2-4x+3x-12=x(x-4)+3(x-4)=(x-4)*(x+3)$

From the factors we just found, we conclude that x intercepts (zeroes) of the original polynomial are those x-values for which each of the factors: (x-1), (x-4) and (x+3) give zero. That is, the values x= 1, x= 4, and x= -3. (these are the roots of the polynomial.

Mark these values on the number line as requested.

7 0

3 years ago

Huilan's age is two times Thomas's age. The sum of their ages is <br> 78<br> . What is Thomas's age?

lisov135 [29]

Let x equal Thomas' age. Then Huilan's age is 2x. Set up an equation to model this situation:

x+2x=78

<em>*Combine like terms*</em>

3x=78

<em>*Divide both sides by 3*</em>

x=26

Hope this helps!!

4 0

3 years ago

Read 2 more answers

Juan cuts a piece of paper in half. he then cuts each half into thirds and each of those pieces into eights. finally, he cuts ea

Nookie1986 [14]

Answer:

D: 768

Step-by-step explanation:

First, he divides a piece of paper in half.

$1 \div \frac{1}{2} = 2$

He gets two pieces.

Next, he cuts each of the pieces into three parts.

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

Thirdly, he cuts each of the 6 pieces into 8 pieces.

$6 \div \frac{1}{8} = 48$

Lastly, he divides each piece into 16 parts.

$48 \div \frac{1}{16} = 768$

He has 768 pieces in the end. (D)

7 0

3 years ago

Need to finish this today ....

lesya692 [45]

The correct answer is A

3 0

3 years ago

Read 2 more answers