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Inessa05 [86]
3 years ago
14

Which study is based on quantitative research? a. Using themes and patterns; using no formal instruments. b. Examining the berea

vement process in spouses of clients with terminal cancer. c. Measuring the differences in blood pressure before, during, and after a procedure. d. Examining a client's feelings during a procedure.
Mathematics
1 answer:
vladimir1956 [14]3 years ago
3 0

Answer:

c. Measuring the differences in blood pressure before, during, and after a procedure.

Step-by-step explanation:

Quantitative research use instruments to measure the variables we are studying. You could measure the variable by using any instrument, in this case the blood preasure during a procedure could be measured with an instrument called sphygmomanometer. Other options couldn't be measured with any instrument.

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What is the approximate area of the circle shown below?
Cerrena [4.2K]
C because the formula to find the are of a circle is A=(pi) * radius^2. To find the radius from diameter, just divide by two. So 60/2= 30 so now you can just plug in and 30 * 30 is 900 and 900 * pi, or 3.1415926535, is about 2827
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18s -17s+1=20 solve for s
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Answer:

s=19

Step-by-step explanation:

18s-17s+1=20

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s=20-1

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5 0
3 years ago
When Tomas simplified the expression -2.6 + (-5.4), he got 2.8. what mistake did Tomas likely make?
vladimir2022 [97]

Tomas used incorrectly the rule of signs, the expression should be simplified as follows:

-2.6 + (-5.4)

-2.6 -5.4 = 8

<h3></h3><h3>What mistake did Tomas likely make?</h3>

Here Tomas wants to perform an addition between two numbers:

-2.6 + (-5.4)

And the outcome that Tomas gets is:

-2.6 + (-5.4) = 2.8

Here his mistake seems to bee that he thought the second number was a positive number, and he solved the operation:

-2.6 + 5.4

So, he used wrong the rule of signs.

Remember that the rule of signs says that:

(-)*(+) = (+)*(-) = (-)

Using that, we can rewrite the original expression:

-2.6 + (-5.4)

to:

-2.6 - 5.4

Solving that, we get:

-2.6 - 5.4 = -8

Which is the outcome that Tomas would have gotten if he had used correctly the rule of signs.

If you want to learn more about the rule of signs:

brainly.com/question/13333620

#SPJ1

5 0
2 years ago
A bicycle wheel has a radius of 13 inches.
mario62 [17]

Step-by-step explanation:

the circumference of a wheel is one revolution

so

formula: circumference=π*diameter

D=26cm (13*2 to find the whole length from one end to other)

so you'll do 3.14*26 equals 81.64

one revolution=81.64

30 revolutions=2,448.3 inches (times by 30 with 81.64)

3 0
3 years ago
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