Answers
Answer:
Third choice
Step-by-step explanation:
Let's see, let's write the numbers in order.
-6,-2,1,1,4,4,14
So we can see that yes, indeed, it could be either -6 or 14.
We can also rule out the first choice and the last choice, because they lack in common sense. -6, being lesser, would not raise the mean, it would lower it. 14, being the greatest, would not lower the mean, it would raise it.
Now let's put our numbers through trial. Find the mean of the whole set.
-6+-2+1+1+4+4+14 = 16
16/7
16/7 is approximately 2.3. We round to the nearest tenth because the numbers in the answers (1.9) are rounded to the nearest tenth.
Now we will exclude 14 to see how much it changes.
-6+-2+1+1+4+4 = 2
2/6 = 1/3
1/3 is approximately 0.3. We can see that the mean has decreased by around 2 just from removing the 14.
Now let's exclude -6 and see how much it changes.
-2+1+1+4+4+14 = 22
22/6 is approximately 3.7. We can see that the mean has increased by around 1.4.
Both the second and the third choice are plausible, but we are looking for the outlier, meaning the one that is further away from the rest of the numbers. The mean decreased by around 2 (which is near 1.9) when 14 is removed, which is greater than 1.4 (or 1), so we can assume that the third choice is the answer.
We can also back this up by finding how much each number is close to the mean. -6 is closer to 2.3 than 14, because if you add 6 to 2.3 (to get the distance between them), it is 8.3, while if you subtract 14 by 2.3, you get 11.7, which is greater than 8.3
Another way to double check this is to see how far away the numbers are from the rest of the numbers. This is not a very accurate way, but it can be useful in double checking. -6 and -2 are only 4 units apart, while 4 and 14 are 10 units apart. 10>4, naturally.
Related Questions
graph the solution to this inequality on the number line. -4x+7>x-13
Answers
Answer:
the solution is x<4 (color green)
Step-by-step explanation:
hello :
draw the graph for the line : y= x-13 ( color bleu)
draw the graph for the line : y= -4x+7 ( color red)
the solution is x<4 (color green)
I only need b par plz ฅ^•ﻌ•^ฅ
Answers
Line 2 slope = -4
Line 3 slope = -1/3
Line 1 and 2 are perpendicular, the rest are neither
PLS NEED HELP DON'T UNDERSTAND ONE PART
Answers
Answer:
Step-by-step explanation:
Work = (12 - 2) x 180 = 10 x 180 = 1800 degrees
Answer = 1800 degrees
Hope that helps!
Answer: .
Step-by-step explanation: okay so the formula to complete this is (n-2) x 180. Which basically is the number of sides, minus 2, and times that answer by 180. So (12-2)x 180.
In the year 2007, a person bought a new car for $23500. For each consecutive year after that, the value of the car depreciated by 9%. How much would the car be worth in the year 2010, to the nearest hundred dollars?
Answers
Answer:
17155
Step-by-step explanation:
23500-27%-17155
To the nearest hundred: 17200.
Hiiiooo! Can someone please help out❤️❤️❤️❤️:D
Answers
Answer:
x = 14.6
Step-by-step explanation:
hopes this helps
calculate the rate of change
Answers
Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
tinyurl.com/wpazsebu
find the value of a,b,y, and z
Answers
Answer:
^ACD= 90+60+x=180
^ACD=150+x=180
^ACD=x=30.
^DCB=60.
^CDB=90
tan 60 = 8/a
a = 8/tan 60
a = 4.61880....
a = 4.6 cm (nearest tenth)
sin = opposite/ hypotenuse
sin 60 = 8/y
y = 8/sin 60
y = 9.2376.....
y = 9.2 cm (nearest tenth)
tan 30 = 8/b
b = 8/tan 30
b = 13.8564......
b = 13.9 cm (nearest tenth)
sin 30 = 8/x
x = 8/sin 30
x = 16 cm
A school has 300 students.If the ratio of boys to girls is 31 to 44, how many more girls are there in the school?
Answers
Answer:
there would be 52 more girls I think
Step-by-step explanation:
let x = multiplier then
31x =number of boys
44x = number of girls
Boys + girls = 300
44x + 31x =300
75x = 300
x = 300/75
x = 4 is the multiplier
therefore:
44*4 = 176 girls
31*4 = 124 boys
dif = 52 more girls than boys
hope this helped :)
Solve: 6 divided by 1/6
Answers
Answer:
0.1 I think
Step-by-step explanation:
The line y = 2x +k is a tangent to the curve x² + 2xy + 20 = 0.
a Find the possible values of k.
b For each of these values of k, find the coordinates of the point of contact
of the tangent with the curve.
Answers
Make t the subject of the formula.
Please help.
Answers
Answer:
[tex]t = \frac{2-3q}{q+4}[/tex]
Step-by-step explanation:
[tex]q = \frac{2-4t}{t+3}\\\\[/tex]
Cross multiply,
q(t+3) = 2 - 4t
Use distributive property: a*(b + c) =(a*b) + (a*c)
qt + 3q = 2- 4t
qt + 4t + 3q = 2
qt + 4t = 2 - 3q
t(q + 4) = 2 -3q
[tex]t = \frac{2-3q}{q+4}[/tex]
Choose Yes or No to tell whether the symbol will be reversed when the variable is isolated in each inequality.
–10.5 < 3a
b/6 ≤ 7
–4.5c > 9
–21/5 ≤ –5/2d
Please I need this answer right away!!!
Answers
Answer:
No, no, yes, yesStep-by-step explanation:
–10.5 < 3a ⇒ -3.5 < a ⇒ a > -3.5
no as variable has positive coefficientb/6 ≤ 7 ⇒ b ≤ 42
no as variable has positive coefficient–4.5c > 9 ⇒ c < - 2
yes as variable has negative coefficient–21/5 ≤ –5/2d ⇒ (-21/5)*(-2/5) ≥ d ⇒ d ≤ 42/25
yes as variable has negative coefficient15.00 + 1.75x > 7.50 + 2.25
Answers
Answer:
Step-by-step explanation:
are these numbers linear or non-linear
x- 0, 1, 2, and 3
y- 1, 3, 6, and 10
Answers
what is 15% of a circlee in degrees
Answers
Explanation: 360*.15=54
Find the side length of a square with
area 16/49 square inches.
Answers
This is where we get the term "square root".
s2 = 49
take the square root of each side
s = 7
The side length of this square is equal to [tex]\frac{4}{7}\;inches[/tex]
Given the following data:
Area of a square = [tex]\frac{16}{49}[/tex] square inches.To determine the side length of this square:
In this exercise, you're required to solve for the length of the sides of a square that has an area of [tex]\frac{16}{49}[/tex] square inches.
Formula for the area of a square.Mathematically, the area of a square is calculated by using the formula;
[tex]A=S^2[/tex]
Where;
S is the length of each sides of a square.Substituting the value into the formula, we have;
[tex]\frac{16}{49}=S^2[/tex]
Taking the square root of both sides, we have;
[tex]S=\sqrt{\frac{16}{49}} \\\\S=\frac{4}{7}\;inches[/tex]
Read more on area of a square here: https://brainly.com/question/16758129
Find the 11th term of the geometric sequence 6, -18,54, ...
Answers
an = a1 * r^n-1 (formula)
a11 = 6 * (-3)^11-1
a11 = 6 * 590949 = 354294
a11 = 354294
Answer:
354294
Step-by-step explanation:
a1 = 6, r = -3
an = a1 * r^n-1 (formula)
a11 = 6 * (-3)^11-1
a11 = 6 * 590949 = 354294
a11 = 354294
'Five times a number minus eight is 17.5.
Answers
Answer:
5.1
Step-by-step explanation:
you need to work backwards.
so do 17.5 + 8 then divide by 5 to get 5.1
i hope this helps :)
help asap
Find the area of the triangle below.
Be sure to include the correct unit in your answer.
Answers
Answer:
just multiply all the sides
Step-by-step explanation:
Answer:
i just need the point thank you
Step-by-step explanation:
Help PLEASE 10pts CMON PEOPLE I NEED TO FINISH THIS TODAY
Answers
Answer:
451054547.5Since total sum of interior angles of a triangle is 180 Do the calculation you will get it
Find the area of the image
Answers
Answer:
I think the answer is 4/3
Step-by-step explanation:
I just substitute
Area =length x width
Area=3X^2-4X(4X^2+5X)
12X^4+15X^3-16X^3-20X^2
12X^4-X^3-20X^2
X^2(12X^2-X-20)
4/5x+5=9 solve for x please i have 8 questions left!!!!!!!!!!!
Answers
Answer:
x= 5
Step-by-step explanation:
You need to get rid of the fraction first and to do that you muliply the whole equation by 5 so that your new equation reads 4x+25=45. Then you subtract 25 from both sides so you have 4x=20. Divide both sides by 4 so x=5.
Please help me ASAP
Answers
Answer:
b
Step-by-step explanation:
Answer:
Option B.
Step-by-step explanation:
Gabriela walked to school on 16 of the 24 school days in March. Which value is equivalent to the fraction of the school days in March that Gabriela walked to school? If you do have the answer please put it in with the question so I can see it thank you so much
Answers
Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
A fraction is a quantity that is not a whole number. In maths, a fraction usually has a numerator and a denominator.
The numerator is the number above. While the denominator is the number below
an example of a fraction = [tex]\frac{4}{5}[/tex]
4 is the numerator while 5 is the denominator
In this question, the numerator would be the number of times she walked to school in march(16). While the denominator would be the number of school days in March
[tex]\frac{16}{24}[/tex]
the above fraction is not in its simplest form. To express in its simplest form, divide both numerator and the denominator by 8 . this gives
[tex]\frac{2}{3}[/tex]
The perimeter of an equilateral triangle is 6x - 24. Which expression represents the length of one side?
Answers
Answer:
side = 2x - 8
Step-by-step explanation:
An equilateral triangle has 3 equal sides.
The perimeter is 3 times one side
In this case P = 6x - 24
Side = p/3 = (6x - 24)/3
Side = 2x - 8
55 x 32 / 32
HELPPP GIVING BRAINLIEST
Answers
Answer:
55
Step-by-step explanation:
Just multiply then divide:
55 x 32 = 1760
1760 ÷ 32 = 55
Or just easier like:
55 x 32 ÷ 32 = 55
Hopefully this helps :3 Sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3
-Bee~
What is the total area of the desk in square feet?
Answers
Answer:
64ft
Step-by-step explanation:
For rhombus GHJK, find m21.
Η
1280
Ο 128
Ο 38
O 90
Answers
Answer:
38
Step-by-step explanation:
128 + angle G= 180
angle G = 180-128= 52
m+ 52 = 90 ( complementary angles)
m= 90-52= 38
What is the remainder when p(x) is divided by (x+1)
Answers
Step-by-step explanation:
WHEN A POLYNOMIAL P(X) IS DIVIDED BY (X+1), THEN THE REMAINDER WILL BE 3.Answer:
3
Step-by-step explanation:
i need help ASAP ill give u brainliest ! WORTH 20 POINTS ! any silly guess gets reported
Answers
Answer:
for volume you multiple l*w*h so 2)432 4)1,216