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grigory [225]
3 years ago
6

Dr. Hadden wants to conduct a study that will allow him to make claims that apply to all college students. Which of the followin

g validities is he prioritizing? a. the statistical validity of the study b. the internal validity of the study c. the construct validity of the study d. the external validity of the study
Mathematics
1 answer:
Elena-2011 [213]3 years ago
7 0

Answer: (D) The external validity of the study

Explanation:

 The external validity is the type of study which basically depicts that the concept of the study result must be meaningful. The external validity mainly apply in the conclusion in the scientific concepts and study about the main context.

External validity is the type of validity in which we extent the result of the study across the different types of situations, times and people. In mathematics, the external validity concept is applicable for determining the statistical and the various computational methods.

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Find the distance between the points: (–6, 7) and (–1, –5). In your final answer, include the formula and calculations that you
expeople1 [14]

Answer: The distance between the points (-6,7) and (-1,-5) is 13 units.

Solution:

P1=(-6,7)=(x1,y1)→x1=-6, y1=7

P2=(-1,-5)=(x2,y2)→x2=-1,y2=-5

Distance between points P1 and P2: d=?

d=sqrt [ (x2-x1)^2 + (y2-y1)^2 ]

Replacing the knwon values:

d=sqrt [ (-1-(-6))^2 + (-5-7)^2 ]

d=sqrt [ (-1+6)^2 + (-12)^2 ]

d=sqrt [ (5)^2 + 144 ]

d=sqrt [ 25 + 144 ]

d=sqrt [ 169 ]

d=13

4 0
3 years ago
Read 2 more answers
Estimate the solution to the system of equations.
LUCKY_DIMON [66]

Hey there! I'm happy to help!

Since we are using graphs, we will do not need to algebraically solve this system of equations.

When you graph a system of equations, the solution is always the point at which the two lines intersect.

Here is our system of equations graphed. We see that the lines intersect at about (1 1/3, 2 1/3). Therefore, the correct answer is C. x=1 1/3, y=2 1/3

Have a wonderful day! :D

4 0
3 years ago
Three equivalent forms of a quadratic function are given. Select the form which reveals the zeros of f(x) without needing to alt
Vanyuwa [196]

Answer:

Read explanation and apply it

Step-by-step explanation:

The vertex form of a quadratic equation is  f(x)=a(x-h)^2+k

The general form of a quadratic equation is f(x)=ax^2+bx+c

The factored form of a quadratic equation is f(x)=a(x-p)(x-q)

The one which reveals the zeros of f(x) without needing to alter the equation is the factored form  f(x)=a(x-p)(x-q).

When f(x)=0, we have  a(x-p)(x-q)=0

The values of x are x=p and x=q.

I hope this guides you to choose the correct answer.

4 0
3 years ago
Please explain how you got the answer also, thank you
harina [27]

Answer:

See Explanation

Step-by-step explanation:

You are doing simple math within the square root. For instance where x=-2 you substitute -2 for x then add 2 which gives you 0 leaving you with -6.

for x=2 you end up with "square root 2+2" which gives you 4 and the square root of 4 is 2 so you add -6 to 2 giving you the answer of -4.

7 0
3 years ago
What is a benefit of health insurance?
jenyasd209 [6]

Answer:

Health insurance protects you from unexpected, high medical costs. You pay less for covered in-network health care, even before you meet your deductible. You get free preventive care, like vaccines, screenings, and some check-ups, even before you meet your deductible.

Step-by-step explanation:

:)

5 0
3 years ago
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