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3 years ago

Which of these methods can be used in a survey

Mathematics

2 answers:

Sauron [17]3 years ago

5 0

Answer:

Cross-Sectional Surveys. Collecting information from the respondents at a single period in time uses the cross-sectional type of survey. ...

Longitudinal Surveys.

The span of time needed to complete the survey brings us to the two different types of surveys: cross-sectional and longitudinal

Step-by-step explanation:

hope this helps

horrorfan [7]3 years ago

4 0

You didn’t specify a method, so i guess all of the above

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F(4) =10x - 2x^2 a . -24 b. -22 c. 24 d.8

kogti [31]

Answer:

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Step-by-step explanation:

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3 years ago

Part A). Emily participates in a trivia quiz show. In each round, 20 points are awarded for a correct answer and 10 points are d

rosijanka [135]

Answer

A. -30 points

B. 60 points

Step-by-step explanation:

20 points for correct answer and 10 points deducted for wrong answer

Each deduction is -10 while each correct answer gives + 20

4 questions correctly and 11 incorrectly

= 4(20) + 11(-10)

= 80-110 = -30 points

Second round

7 correct, 8 incorrect

= 7(20) - 8(10)

= 140-80 = 60 points

4 0

3 years ago

Paul has $78 in the bank and saves $30 each week. What is the initial value? Be sure to use negative signs if needed.

marin [14]

Answer:

The initial value is $78

Step-by-step explanation:

Given

$Base\ Amount = \$78$

$Additional = \$30$ (weekly)

Required

Determine the initial value

The initial value is the amount he has in its bank account before making his weekly savings.

From the question, we have that his initial balance is $78.

Hence, the initial value is $78

However, his weekly balance can be expressed as:

$Balance = Base\ Amount + Additional * number\ of weeks$

Represent number of weeks with x; So, we have:

$Balance = 78 + 30 * x$

$Balance = 78 + 30 x$

6 0

2 years ago

Consider exponential function h. h(x) = 3x + 4

GarryVolchara [31]

The function is always positive.

(0,5) is the y-intercept, since the graphed line never crosses the x axis, there is no x-intercept.

The function is positive and greater than 4 for all values of x

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5 0

3 years ago

What is the value of x in the equation ex- y = 30, when y = 15?

Bumek [7]

Answer:

x = 45

Step-by-step explanation:

Solution:

x - y = 30

x - 15 = 30 ( y = 15 given)

x = 30 + 15

Therefore, x = 45

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3 years ago