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Masteriza [31]
3 years ago
11

Facial shaving brushes are either bulb-shaped or fan-shaped. An experiment is to be conducted to determine whether the lather th

ickness is the same for both types of shaving brushes. In previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (Wolf Whiskers, Maggard Razors, Frank Shaving, and so on) is not associated with lather thickness. How could the experiment BEST be conducted?
a) By blocking on shaving brush size

b) By blocking on shaving brush type

c) By blocking on shaving brush shape

d) By blocking on lather thickness

e) Without blocking
Mathematics
2 answers:
rusak2 [61]3 years ago
8 0
I think it is A
Hope my answer help you?
kotegsom [21]3 years ago
3 0

Answer:

a) By blocking on shaving brush size

Step-by-step explanation:

You block on the variable that the researchers think matters.

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Calculate a_57 for the sequence {a_n}={-6,-9/2,-3,-3/2,0}
Archy [21]

Answer:the 57th term is 78

Step-by-step explanation:

The sequence is an arithmetic sequence. The formula for determining the nth term of an arithmetic sequence is expressed as

Tn = a + (n - 1)d

Where

a represents the first term of the sequence.

d represents the common difference.

n represents the number of terms in the sequence.

From the information given,

a = - 6

d =3/2

n = 57

We want to determine the value if the 57th term, T57. Therefore,

T57 = - 6 + (57 - 1) ×3/2

T57 = - 6 + 56 × 3/2 = - 6 + 84

T57 = 78

3 0
2 years ago
N/8 -3 = 16. <br> A student got n=5 is the student correct yes or no<br> 50 points I guess
amid [387]

thank you for the points

5 0
2 years ago
A window shades like a parallelogram has area of 18 1/3 ft.² the height of a window is 3 1/3 feet how long is the base of the wi
morpeh [17]
Explanation:

Datum: Area, <span>A=18<span>13</span>f<span>t2</span></span> and height, <span>h=31ft</span>

Required: Base of the parallelogram?

*Solution: Area, <span>A=b×h</span>
<span>18<span>13</span>f<span>t2</span>=b×31ft</span> solve for base, b
<span>b=<span>553</span>×<span>131</span>=<span>5593</span>=.591f<span>t</span></span>

8 0
2 years ago
Help please :) will give brainlist
Savatey [412]

Answer:

34.9

Step-by-step explanation:

Because if you multiply then divide by 2 that will help you alot.

8 0
2 years ago
Pls help this is a major grade
scZoUnD [109]

Answer:

3617.28 mm³

Step-by-step explanation:

The volume of a cylinder is...

V = πr²h

Plug in the values given into the equation

V = (3.14)(12²)(8)

V = (3.14)(144)(8)

V = 3617.28 mm³

7 0
2 years ago
Read 2 more answers
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