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2 years ago

A study will investigate the effectiveness of a new textbook. The samples (

Mathematics

1 answer:

givi [52]2 years ago

8 0

The limitation of the research include:

B. The teachers may differ in number of years teaching.

C. The teachers may differ in early childhood experience.

D. The teachers may differ in number of years teaching reading.

<h3>How to explain the information?</h3>

It should be noted that the information given about the teachers is limited to the fact that they teach preschool. It should be noted that if a teacher has more experience teaching, they are probably better at teaching.

Although both teachers teach preschool, one may have many more years of experience or other qualifications.

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A study will investigate the effectiveness of a new early reading program onPrekindergarten students' reading abilities. The samples (n = 30 and

n =35) included in the study are taught by two preschool teachers.

Which of the following are possible limitations of the study? Select all that apply.

A. The sample size is too small.

B. The teachers may differ in number of years teaching.

C. The teachers may differ in early childhood experience.

D. The teachers may differ in number of years teaching reading.

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321x.07 (7%) = 22.47
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3 years ago

Please help.

kati45 [8]

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3 years ago

Determine if the two triangles are congruent. If they are, state how you know. SAS , ASA, AAS, SSS or HL

Mandarinka [93]

Step-by-step explanation:

1. SAS

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3. RHS

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3 years ago

Write 56 1/4% as a fraction is simplest form

bazaltina [42]

56.25% as a decimal is 0.5625

0.5626 is equal to 5625/10000, which can be simplified to 9/16

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4 years ago

A frustum is made by removing a small cone from a similar large cone in the diagram shown the height of a small cone is a quarte

lesantik [10]

Answer:

Volume of the frustum = ⅓πh(4R² - r²)

Step-by-step explanation:

We are to determine the volume of the frustum.

Find attached the diagram obtained from the given information.

Let height of small cone = h

height of the large cone = H

The height of a small cone is a quarter of the height of the large cone:

h = ¼×H

H = 4h

Volume of the frustum = volume of the large cone - volume of small cone

volume of the large cone = ⅓πR²H

= ⅓πR²(4h) = 4/3 ×π×R²h

volume of small cone = ⅓πr²h

Volume of the frustum = 4/3 ×π×R²h - ⅓πr²h

Volume of the frustum = ⅓(4π×R²h - πr²h)

Volume of the frustum = ⅓πh(4R² - r²)

6 0

4 years ago