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iogann1982 [59]
3 years ago
6

On a math test the mean score is 82 with a standard deviation of 3. A passing score is 70 or greater. Choose a passing score tha

t you would consider to be the outlier.
Mathematics
1 answer:
8090 [49]3 years ago
4 0
82... goes up by 3. so 85... not quite sure if that's the answer to what you are asking.. is your question completely written out? lol
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Find a value of k such that kx2 + 12x − 4 = 0 has one real-number solution. Explain.
Marta_Voda [28]

Answer: if x is to the 2 power then

kx^2+12x-4=0         Add 4 to the both sides

kx^2+12x=4             Divide both sides by 12

kx^2=1/3x                square root the both sides

k=0.6x

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which of the following shows the correct solution steps and solution to
Andreyy89

C.

3x + 2 = 17 \\ 3x + 2 - 2 = 17 - 2 \\  \:  \:  \:  \:  \:  \:  \:  \:  \: 3x = 15 \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  x =  \frac{15}{3}  \\  \:  \:  \:  \:  \:  \:  \:  \: x = 5

6 0
3 years ago
A rope is being used to anchor a tree to the ground, as shown in the picture below. If the rope is 15 feet long and it is tied t
MrRa [10]
U have to use Pythagoras theorem to solve this.. (adjacent)^2+(opposite)^2=hypotenuse^2
looking at the question,
the hypotenuse =15ft
opposite =12ft
adjacent =???
adjacent^2+(12)^2=15^2
a^2+144=225
group like terms
a^2=225-144
a^2=81
introduce square root to both side
​root a^2=root81
a=9ft
therefore, the answer is 9ft.
8 0
4 years ago
Help me find the mean
Dima020 [189]

3.8+7.6+9.3+31+43+54+62+89+107+119+123+127=775.7

775.7/12=64.64166666666667

So the mean is 64.64

3 0
4 years ago
Read 2 more answers
farmer joe is enclosing a rectangular area on his arm for his chicken with 200 feet of fencing that he recently acquired in a tr
Llana [10]
For this case, the area is given by:
 A = x * (200-2x)
 Rewriting:
 A = 200x-2x ^ 2
 Deriving the expression we have:
 A '= 200-4x
 Equaling zero we have:
 200-4x = 0
 We clear x:
 4x = 200
 x = 200/4
 x = 50 feet
 Then, the maximum area is:
 A (50) = 50 * (200-2 * 50)
 A (50) = 5000 feet ^ 2
 Answer:
 
the maximum possible area that can be enclosed with his 200ft of fencing is:
 A
 (50) = 5000 feet ^ 2
8 0
3 years ago
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