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Sever21 [200]
3 years ago
8

I'm doing Quadratic formula and I've simplified it down to the equation at the bottom. What do I do after? Is that my answer bec

ause 5 & 17 have no other factors? Or am I missing something?

Mathematics
1 answer:
givi [52]3 years ago
6 0

No you could have left it as the last but one line or write them separately as

11/18 + √85 / 18 , 11/18 - √85/18

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About 10% of the human population is left-handed. Suppose a researcher speculates that artists are more likely to be left-handed
nevsk [136]

Answer:

Given the information in the question;

a) The parameter of interest is the population of artists who are left-handed and its is 10% = (10/1000 = 0.10

b) The Null hypothesis and alternative hypothesis are;

<em>H₀ : p </em>= 0.10

<em>H₁ : p</em> > 0.10

c) The sample proportion is calculated as:

p = number of left handed artist / sample size

p = 26 / 200

p = 0.13

d) To find the p-value, The researcher should calculate the probability that the sample proportion would be 0.13 or larger for a sample of size 200 if the population proportion is actually 0.10.

4 0
3 years ago
You have decided to wallpaper your rectangular bedroom. The dimensions are 12 feet 6 inches by 10 feet 6 inches by 8 feet 0 inch
Schach [20]

Answer:

Number of wallpaper needed = At/Aw = 355.3/75

N = 4.74 ~= 5 rolls

Step-by-step explanation:

Given;

Length of the room = 12 feet 6 inches = 12.5 ft

Breadth of the room = 10 feet 6 inches= 10.5ft

Height of the room = 8 feet

Window = 4 ft by 3ft

door = 7ft by 3 ft

Wall paper = 30 inches by 30ft = 2.5ft by 30ft

The total area of the walls of the room is;

Area = Area of the four walls - Area of the two windows and a door.

A = 2LH + 2BH - Area of windows and door

A = 2(12.5×8) + 2(10.5×8) - 2(4×3) -(7×3)

A = 323ft^2

Allowing 10% waste, total area of wallpaper needed is;

At = 323 × 1.10 = 355.3ft^2

Area of wallpaper Aw= 2.5×30 = 75ft^2

Number of wallpaper needed = At/Aw = 355.3/75

N = 4.74 ~= 5 rolls

3 0
3 years ago
What is the constant of proportionality?
lawyer [7]

Answer:

2

Step-by-step explanation:

5 0
3 years ago
A tennis racquet bought for €95 was then sold for €132. Find the profit as a percentage of the cost
IgorC [24]

Answer:

38.95%

Step-by-step explanation:

profit%= profit/cost price ×100

37/95×100

0.38×100

profit%=38.95

5 0
2 years ago
Please help thank you!
aalyn [17]

Answer:

the correct awnser is c, x is multiplied by 4 and reflected across x axis

8 0
3 years ago
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