What is 7,200/10power2

How to do a exponent with the negative base?

tatiyna

Examples :
(-2)^3 = (-2)(-2)(-2) = - 8

(-3)^4 = (-3)(-3)(-3)(-3) = 81

(-1)^5 = (-1)(-1)(-1)(-1)(-1) = -1

** if the exponent is an even number, the answer will be positive. if the exponent is an odd number, then the answer will be negative

** but keep in mind....if the negative is not included with the base..
-(5^2) = - 25....but (-5^2) = 25

3 0

4 years ago

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Guys plz help me with a few problems

trasher [3.6K]

It probably gos like this here's my answer for number 1 6/8 and 9/12. for number 3, 10/12 and 15/18.

4 0

3 years ago

A yearbook company was investigating whether there is a significant difference between two states in the percents of high school

Keith_Richards [23]

Answer: D. two-sample z-test for a difference in population proportions

Step-by-step explanation:

The options for the given questions were missing. The options are as follows:

A one-sample z-test for a sample proportion

B one-sample z-test for a population proportion

A

C two-sample z-test for a difference in sample proportions

D two-sample z-test for a difference in population proportions

Solution:

Sample proportions are used to estimate population proportions.

We are given the sample proportion of students from one state who ordered a yearbook = 70/150

We are also given the sample proportion of students from the other state who ordered a yearbook = 65/100

Since there are 2 samples and we want to investigate if there is a difference between 2 population of students,

Therefore, the most appropriate method for analyzing the results is

D. two-sample z-test for a difference in population proportions

8 0

3 years ago

A political action committee is interested in the proportion of all registered voters who will vote "Yes" on a measure to expand

kirza4 [7]

Answer: parameter: The proportion of registered voters who will vote Yes on the measure.

Sample: The 1000 registered voters who participated in the study.

Statistic: The proportion of the 1000 registered voters that were surveyed who will vote Yes on the measure.

Variable: Yes or No for each registered voter

Population: All registered voters in the US

Data: The list of Yes and No answers that were given by the 1000 participants in the study.

Step-by-step explanation:

Definitions of the given terms:

Population: Large groups of individuals having similar characteristics as per the researcher's point of view.

Sample: It is a subset of the population used to represent it.
Parameter: Measure of particular characteristics in the population.
Statistic: Measure of particular characteristics in the sample.
Variable: Characteristics that vary.
Data: A collected information facts and statistics.

Hence, by using the above definitions, we have

Parameter: The proportion of registered voters who will vote Yes on the measure.
Sample: The 1000 registered voters who participated in the study.
Statistic: The proportion of the 1000 registered voters that were surveyed who will vote Yes on the measure.
Variable: Yes or No for each registered voter.
Population: All registered voters in the US.
Data: The list of Yes and No answers that were given by the 1000 participants in the study.

4 0

3 years ago

NO LINKS I will give brainliest, it’s a graph pls answer if you know how. Where are the smart people

Nataly_w [17]

Answer:

The answer for (a) is at the picture

(b) The vertex is (-2,7)

(c) Yes the parabola open downward

(d) -(x+2)^2+7 the turning point is at (-2,7) since it is where the group curves

Step-by-step explanation:

4 0

3 years ago

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