All categories

3 years ago

Which of the following is NOT an example of a repeated-measures design?

Mathematics

2 answers:

Schach [20]3 years ago

6 0

Answer:

its D

Step-by-step explanation:

the research is done on two groups seeing what they do on the same platform and isn't on before and after results of one subject

Fed [463]3 years ago

3 0

B is correct because I know

You might be interested in

WILL GIVE BRANLIEST TO WHOEVER ANSWERS CORRECTLY. Find quadratic equation for the x-intercepts of (6,0) and (26,0)

masya89 [10]

Use desmos!!! It’ll help and show you a graph!!

5 0

3 years ago

Which equation is true if x = 9? A:3/8 x = 3 3/8 B: 8.7 + x = 17 X: 5x = 40 x:11.5 = 20

Furkat [3]

Answer:

the answer might be A meaning Sis TV correct one

6 0

3 years ago

King kyle orders the construction of his future mausoleum ( a fancy tomb) so that people never forget his awesomeness. His archi

BartSMP [9]

Answer:

okay so,

so do a 16 by 14 rectangle it should be good

sry if its wrong i tried but i hope it helped ;0

5 0

3 years ago

Read 2 more answers

A quadrilateral has vertices at A(-5,5), B(1,8), C(4,2), and D(-2,-2). Use slope to determine if the quadrilateral is a rectangl

AysviL [449]

Answer:

The quadrilateral is not a rectangle

Step-by-step explanation:

we know that

If a quadrilateral ABCD is a rectangle

then

Opposite sides are congruent and parallel and adjacent sides are perpendicular

Remember that

If two lines are parallel, then their slopes are the same

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

A(-5,5), B(1,8), C(4,2), and D(-2,-2)

Plot the figure to better understand the problem

see the attached figure

Find the slope of the four sides and then compare

step 1

Find slope AB

A(-5,5), B(1,8)

substitute in the formula

$m=\frac{8-5}{1+5}$

$m=\frac{3}{6}$

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

step 2

Find slope BC

B(1,8), C(4,2)

substitute in the formula

$m=\frac{2-8}{4-1}$

$m=\frac{-6}{3}$

$m_B_C=-2$

step 3

Find slope CD

C(4,2), and D(-2,-2)

substitute in the formula

$m=\frac{-2-2}{-2-4}$

$m=\frac{-4}{-6}$

$m_C_D=\frac{2}{3}$

step 4

Find slope AD

A(-5,5), D(-2,-2)

substitute in the formula

$m=\frac{-2-5}{-2+5}$

$m=\frac{-7}{3}$

$m_A_D=-\frac{7}{3}$

step 5

Verify if the opposites are parallel

Remember that

If two lines are parallel, then their slopes are the same

The opposite sides are

AB and CD

BC and AD

we have

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

$m_C_D=\frac{2}{3}$

$m_A_B \neq m_C_D$

It is not necessary to continue verifying, because two of the opposite sides are not parallel

therefore

The quadrilateral is not a rectangle

4 0

3 years ago

6y(-5-y+4y^2) <br> Simplify the expression^^

Nina [5.8K]

Answer:

24y^3-6y^2-30

Step-by-step explanation:

6y(-5-y+4y^2)

-30y-6y^2+24y^3

Put in the correct order

24y^3-6y^2-30

3 0

3 years ago