1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nata [24]
2 years ago
10

Studying a group of children from first grade through high school to see the effect of pre-schooling on educational success woul

d be which
type of study?
a
longitudinal
cross-sectional
Ос
natural observation
Od
experimental
Mathematics
1 answer:
aleksandr82 [10.1K]2 years ago
4 0

Answer:

Longitudinal study

Step-by-step explanation:

Information is collected over extended periods of time in a longitudinal study, but in cross-sectional, natural observation, and experimental studies, information is collected over short periods of time or in one time only. Based on the choices given, this type of study would be a longitudinal study.

You might be interested in
two trains ,each 100 m long,moving in opposite directions ,cross each other in 8 seconds .if one is moving twice as fast as the
Feliz [49]

Answer:

60 km/hr

Step-by-step explanation:

100+100

_______         =3x

      8

3x= 200/8

x=200/24 mps

=30mph

final speed is 60km/hr because its 2x's more =2*30=60

8 0
3 years ago
The velocity of an automobile starting from rest is given by the equation below, where v is measured in feet per second and t is
podryga [215]

Answer:

(a) 0.408m/sec^2

(b) 0.134m/sec^2

(c) 0.039m/sec^2

Step-by-step explanation:

We have given velocity as function of t v(t)=\frac{85t}{(8t+14)}

Acceleration is equation rate if change of velocity with respect to time

So a=\frac{dv}{dt}=\frac{(8t+14)85-85t\times 8}{(8t+14)^2}

(a) Acceleration at t = 5 sec

a=\frac{(8\times 5+14)85-85\times 5\times 8}{(8\times 5+14)^2}=0.408m/sec^2

(b) Acceleration at t = 10 sec

a=\frac{(8\times 10+14)85-85\times 10\times 8}{(8\times 10+14)^2}=0.134m/sec^2

(c) Acceleration at t = 20 sec

a=\frac{(8\times 20+14)85-85\times 20\times 8}{(8\times 20+14)^2}=0.039m/sec^2

5 0
3 years ago
D. Vuyo and Zintle together earn R400 for a job. How much should each one be paid​
Marina CMI [18]

Answer:

200 a piece bc thats half

3 0
3 years ago
The New family pays $34.56 for
lianna [129]

Answer:

$3.456

Step-by-step explanation:

34.56÷100x10

=3.456

$3.456 is 10% of $34.56

4 0
3 years ago
Duane And his family are playing a game Dwayne scores 11 points each tile matches 1/3 point model the solution with an equation
Luba_88 [7]

Answer:

33 tiles

Step-by-step explanation:

Given

1\ tile = \frac{1}{3}\ points

Required

Determine the number of tiles in 11 points

Represent this with x. So, we have:

1\ tile = \frac{1}{3}\ points

x = 11\ points

Cross Multiply

x * \frac{1}{3} = 11 * 1

Multiply through by 3

3*x * \frac{1}{3} = 11 * 1*3

x = 33

6 0
3 years ago
Other questions:
  • Why would a box and whisker plot be unequal?
    6·1 answer
  • jeordine spreads out a rectangular picnic blanket with an area of 42 square feet. its width is 6 feet. which equation could you
    8·1 answer
  • What is the slope of f(x) = 2x – 3
    7·2 answers
  • Alex wants to sew a pillow in the shape below. How many square yards of fabric are needed to sew the pillow? Fabric is only sold
    5·1 answer
  • Y=-3x+6 and y=5x-2 for y
    13·1 answer
  • Find the missing side or angle.
    14·2 answers
  • At a​ little-known vacation​ spot, taxi fares are a bargain. A 42 ​-mile taxi ride takes 49 minutes and costs ​$29.40. You want
    13·2 answers
  • What are 2 mixed numbers that sum to 15 3/10 and a difference of 8 5/10
    9·1 answer
  • las tres quintas partes de una bandera son de color rojo, la cuarta parte es azul y el resto blanco ¿ que parte de la bandera es
    12·1 answer
  • On December 31, 2019, Akron, Inc., purchased 5 percent of Zip Company's common shares on the open market in exchange for $16,050
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!