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
Anastaziya [24]
3 years ago
10

A school counselor wants to compare the effectiveness of an online SAT preparation program with an in-person SAT preparation cla

ss. For an experiment, the counselor recruits 30 students who have already taken the SAT once. The response variable will be the improvement in SAT score. a. Design an experiment that uses a completely randomized design to investigate this question. b. Design an experiment that uses a matched pairs design to investigate this question. Explain your method of pairing. c. Which design do you prefer
Mathematics
1 answer:
Likurg_2 [28]3 years ago
4 0

Answer:

Which design do you prefer

Step-by-step explanation:

You might be interested in
a cake using eggs and potatoes in the ratio of 2 to 5 if he uses sex as how many potatoes will he need
tamaranim1 [39]
When eggs = 2, then potatoes = 5

Eggs: 2
Potatoes: 5

When that is changed to 6 eggs, 2 needs to be multiplied by a number to get 6.

2 * what = 6      or      6/2=

you get the number 3. A fraction is equivalent to a ratio. So if you have 2*3=6 then you need to multiply 5*3 to get the amount of potatoes you need. the answer is 15 potatoes because 5*3=15.
4 0
3 years ago
Differentiate. F(x) = (x3 - 3)2/3 2x f'(x) - 3 8 O f'(x) = 3 8 2x2 f'(x) 3 VX3 -8 f(x) 3 V3-8​
oee [108]

Answer:

f'(x) =   \frac{2{x}^{2}}{ \sqrt[3]{( {x}^{3}  - 8) } }

Step-by-step explanation:

f(x) = ( {x}^{3}  - 8)^{ \frac{2}{3} }  \\  \\ f'(x) =  \frac{2}{3} ( {x}^{3}  - 8)^{ \frac{2}{3} - 1 } (3 {x}^{2}  - 0) \\  \\ f'(x) =  \frac{2}{3} ( {x}^{3}  - 8)^{ \frac{2 - 3}{3}  }  \times 3 {x}^{2} \\  \\ f'(x) =  2{x}^{2}( {x}^{3}  - 8)^{ \frac{ - 1}{3}  } \\  \\ f'(x) =   \frac{2{x}^{2}}{( {x}^{3}  - 8)^{ \frac{ 1}{3}  } } \\  \\ \huge \red{ \boxed{ f'(x) =   \frac{2{x}^{2}}{ \sqrt[3]{( {x}^{3}  - 8) } } }}

3 0
3 years ago
5. The distance between two given points (5,2) and (x,5) is 5 units. Find the possible values of x. *​
kirza4 [7]
<h3>Answers:  x = 1 and x = 9</h3>

============================================================

Explanation:

We'll use the distance formula here. Rather than compute the distance d based on two points given, we'll go in reverse to use the given distance d to find what the coordinate must be to satisfy the conditions.

We're given that d = 5

The first point is (x_1,y_1) = (5,2) and the second point has coordinates of (x_2,y_2) = (x,5) where x is some real number.

We'll plug all this into the distance formula and solve for x.

d = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\\\\5 = \sqrt{(5-x)^2+(2-5)^2}\\\\5 = \sqrt{(5-x)^2+(-3)^2}\\\\5 = \sqrt{(5-x)^2+9}\\\\\sqrt{(5-x)^2+9} = 5\\\\(5-x)^2+9 = 5^2\\\\(5-x)^2+9 = 25\\\\(5-x)^2 = 25-9\\\\(5-x)^2 = 16\\\\5-x = \pm\sqrt{16}\\\\5-x = 4 \ \text{ or } \ 5-x = -4\\\\-x = 4-5 \ \text{ or } \ -x = -4-5\\\\-x = -1 \ \text{ or } \ -x = -9\\\\x = 1 \ \text{ or } \ x = 9\\\\

This means that if we had these three points

  • A = (5, 2)
  • B = (1, 5)
  • C = (9, 5)

Then segments AB and AC are each 5 units long.

7 0
3 years ago
Will give Brainliest, 8th-grade slope
Vladimir79 [104]

Answer:

undefined

Step-by-step explanation:

4 0
3 years ago
The value for √10 is approximately between 3 and 4. Approximate further to find the values to the tenths place that √10 is betwe
san4es73 [151]

Answer:

a = 3.1

b = 3.2

Step-by-step explanation:

I did the quiz

7 0
4 years ago
Read 2 more answers
Other questions:
  • How can 11,14,13 and 19 equal to 4
    8·1 answer
  • The decimal number 11.8 can be read as "eleven and eight tens."<br><br><br> True or False
    12·2 answers
  • Find the product. a 4 (3 a 2 - 2 a + 1)
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=log_%7B8%20x%5E%7B2%7D%20-23x%2B15%7D%282x-2%29%20%5Cleq%200" id="TexFormula1" title="log_{8 x
    12·1 answer
  • 1). If the discriminant of a quadratic equation is 28 describe the roots
    14·2 answers
  • What's the Greatest common factor of 9 and 24
    13·1 answer
  • 11 and 12 please explain on 12
    8·2 answers
  • What is the area of the shaded part of the figure?
    15·1 answer
  • Illmark brainlist please help
    8·2 answers
  • Someone help me with this
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!