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
Which function is shown in the graph below?
Answers
Answer:
y = (1/2)^x-3 + 1
Step-by-step explanation:
The correct expression of the given graph is y = [tex](1/2)^{x - 3} + 1[/tex]
What is parabola?A parabola is a U-shaped plane curve in which any point is an equal distance from both a fixed point (known as the focus) and a fixed straight line (known as the directrix). The issue of parabola is intertwined with the topic of conic sections, and all of its principles are discussed here.
In the given figure,
The curve represent the parabola
Since the curve is passing through
(0,9) from the Y axis and touches x axis at infinity
Now we can use hit and trial method to find the exact equation
So we plot the figure one by one
Hence,
we get the correct equation,
y = [tex](1/2)^{x - 3} + 1[/tex]
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5.5% tax on $20 is $
Answers
Answer: $18.90
Step-by-step explanation:
Answer:
$1.1
Step-by-step explanation:
= 5.5% × $20
= $1.1
Each square in the grid below has area 1. Find the area of the irregular quadrilateral below.
Answers
Answer:
37.5
Step-by-step explanation: 9×8 - 4×8/2 - 5×5/2 + 4×3/2 = 37.5
The whole grid area - left white triangle area - right up triangle area - right down triangle area = blue part area
Drag the correct number of pieces to show how to find the area of the shaded figure in two different ways. Pieces can be rotated to fit.
Answers
Answer:
21
Step-by-step explanation:
Remark
Draw a line across the east and west farthest points. If you count the lower left point as 0,0, I am talking about 1,6 and 7,6 What that does is divide the figure into a triangle and a trapezoid.
Triangle
The base goes from x = 1 to x = 7 when that new line is introduced which is 6 units parallel to the x axis.
The height goes from 4,4 to 4,6 which is 2 units in the y direction.
So the area = 1/2 (2)*(6) = 6 units.
Trapezoid.
h = 3 derived from 4,3 to 4,6 which is 3 points 6 - 3 = 3
b1 = 6 That's the line you just drew in.
b2 = 4 That comes from 2,3 to 6,3 6-2 = 4
Area = 1/2 (b1 + b2) * h
Area = 1/2 (6 + 4)* 3
Area = 5 * 3 = 15
Total Area = 15 + 6 = 21
Boris runs 9 miles in 57 minutes.
How many miles does he run per minute?
(round to the nearest hundredth)
Answers
Answer:
0.16
Step-by-step explanation:
Speed= 9 miles/57 minuets=(9/57)
Now we want to figure out how many miles Boris runs per minuet
9/57= 0.15
Round to the nearest hundredth and it's 0.16.
Hope this helps!
By selling an article for rs 660 pradeep loses 60 rs at what price he must sell the article to gain 15%
Answers
Answer:
828 rs
Step- -step explanation:
pradeep sold the item for 60 rs less than the cost price
The cost price = amount lost + amount it was sold
60 + 660 = 720 rs
To determine the selling price that would yield a gain of 15%,
calculate 15% of 720. Add the amount derived in the above step to 72015/100 x 720 = 108
108 + 720 = 828 rs
Rewrite as a product of two factors: 3 + 18d + 21y
Answers
Answer:
[tex] \huge { \red{\boxed{ \boxed{ \tt \: 3(1 + 6d + 7y)}}}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:factoringlet's solve:in the following expression
everytime 3 is common
(3×1)+(3×6d)+(3×7d)
therefore if you take 3 from every expression we get
3(1+6d+7y)which is a product of two factors
A student correctly added the two two-digit numbers on the left of the board and got the answer 137. What answer will she obtain if she adds the two four-digit numbers on the right of the board?
AB + CD=137
ADCB +CBAD =?
Answers
Answer:
im sry but i need halppppp with this
Step-by-step explanation:
what is 210900 times 234546
Answers
other than that have a wonderful day <3
Answer:
49465751400
Step-by-step explanation:
what is the anwser for 4n-2n=4
Answers
Answer:
2
Step-by-step explanation:
4n-2n=4
2n=4
n=4/2
n=2
QUICK
The figure shows the outline of a new pier that is going to be built at the ocean. What is the area of the pier? Use 3.14 for pi.
Answers
Answer:
7502.88m^2
here u go hope it helps
The area of the pier is approximately 1231.62 square meters.
What is a circle?A circle is a two-dimensional figure with a radius and circumference of 2pir.
The area of a circle is πr².
We have,
The pier is in the shape of a semicircle.
So,
The area of a semicircle is half of the area of a circle with the same diameter.
The area of a circle with a diameter of 56m is:
A = πr² = π(28)² = 2463.23 m²
So,
The area of the semicircle is:
A/2 = 2463.23/2= 1231.62 m²
Therefore,
The area of the pier is approximately 1231.62 square meters.
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PLEASE HELP IM DESPRATE AND I CANT GET IT
Answers
Answer:
1
Step-by-step explanation:
1. 1
if you find -4 on the x-axis, the y value is 1.
what is the 3rd page?
Write .27 as a fraction in simplest form.
Answers
Answer:
27/100
Step-by-step explanation:
It's in the hundreths,
so we just put 27 over 100
Which expression is equivalent to 5(n + 7)?
Answers
All you can do is simplify by removing the brackets through the distributive property. This gives you another equivalent equation.
There are 5 cards with a picture of a rose and 3 cards with a picture of a daisy. Alia keeps all the cards down on a table with the pictures hidden and mixes them up. She then turns over one card and finds the picture of a rose on it. She removes this card from the table and turns over another card without looking. What is the probability that the card that Alia turns over has a rose on it? (1 point)
Group of answer choices
4 over 5
5 over 7
4 over 7
5 over 8
Answers
Answer:
P = 4/7
Step-by-step explanation:
There are 5 cards with a picture of a rose and 3 cards with a picture of a daisy.
Then we have a total of 8 cards.
Now Alia turns over one card, and this card has a picture of a rose, then she removes it.
This means that now there are 4 cards with a picture of a rose and 3 cards with a picture of a daisy, so now we have a total of 7 cards.
We want to find the probability that the next turned card has also a rose on it.
This will be equal to the quotient between the number of cards with a rose on it (4 cards) and the total number of cards (7)
Then the probability is:
P = 4/7
please help me lol. The figure on the left is reflected using line l to form the image on the right. Use the information in the original figure to label the corresponding parts in
the image.
Ite!
Ite
2.2
Ite
Ite
O
143
3.2
0
Ite
1084
Ite
639
O
o
Ite
Ite
Answers
Answer and Step-by-step explanation:
The sides and angles should be the same as the un-reflected version, except everything is flipped. Please see attached picture for reference.
#teamtrees #PAW (Plant And Water)
The sides and angles should be the same as the un-reflected version, except everything is flipped, thus the corresponding parts are attached below.
Explanation of how reflection across axis works?When a graph is reflected along an axis, say x axis, then that leads the graph to go just in opposite side of the axis as if we're seeing it in a mirror.
If study it more, you will find that its symmetric, thus each point is equidistant from the axis of reflection as that of the image of that point.
Thus, if we are reflecting a point (x,y) along x axis, then its x abscissa will stay same but y ordinates will negate. Thus (x,y) turns to (x, -y)
Similarly, if we are reflecting a point (x,y) along y axis, the resultant image of the point will be (-x,y)
The sides and angles should be the same as the un-reflected version, except everything is flipped, thus the corresponding parts are attached below.
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Laurie bought 4 yards of brown braid trim, 7 yards of black lace, and 13 yards of gold ribbon. She paid $2.40 for each yard of ribbon. How many total yards did she buy of trim, lace and ribbons? How much did Laurie spend on her purchases before tax?
This is probably easy, but i am too lazy. Also if you want, type the steps that got you your answer. I will give you brainliest for my laziness.
Answers
Answer:
24 yards, $77.40
Step-by-step explanation:
1) brown braid : 4*2.40 = $16.80
black lace : 7*2.40 = $29.40
gold ribbon : 13*2.40 = $31.20
2) 4 + 7 + 13 = 24 yards <
3) 16.80 + 29.40 + 31.20 = $77.40 <
State if the triangle is acute, obtuse, or right
Answers
Answer:
right angle triangle
Greg sells cars. He makes a base salary of
$350, plus $734 per car he sells. Write a
function that models this situation. (y = mx +
b)
Answers
Answer: y = 734x + 350
Step-by-step explanation:
y = mx + b
let x be the number of cars he sells, then:
y = 734x + 350
What is the total surface area?? PLEASE HELP THIS IS A QUIZ IM SO CONFUSED
Answers
Answer:
246 cm
Step-by-step explanation:
So I solved for the two triangles, 6x8=48/2=24, since there are 2, I multiplied by 2 to get 48 (Could've kept it just as 48 but it's good to keep the habit of dividing by 2 to get area of a triangle). Then I did 6x9 for the front rectangle to get 54, and then solved for the right and back rectangle by doing 9x8 to get 72, 72x2=144
144+48+54= 246
(-7,14),(-14,3) slope
Answers
Answer:
the slope of the line that lies on those two points is 11/7
Step-by-step explanation:
insert the first point into y=mx+b
14=(-7)m+b
----------------
Do it again with the other point
3=(-14)m+b
-------------
Now put both equations in a system of equations
14=(-7)m+b
3=(-14)m+b
solve for m and b
m=11/7 and b=25
y=11/7x+25
m=slope
b=y-intercept
Hope that helps :)
Please give brainliest
pls help with this question!
thx!
Answers
Answer:
b = 37 degrees
Step-by-step explanation:
all of the angles on a triangle added up equal 180 degrees
111 degrees
32 degrees
111 + 32 = 143
180 - 143 = 37
b angle = 37 degrees
Answer: 37 degrees.
Step-by-step explanation: a triangles degrees all add up to 180 so 111+32=143 and 180-143=37 so 37 degrees.
Will mark brain list
Answers
Answer:
36
Step-by-step explanation:
6+6=12 12+12=24 9+6=15 15+24=39
In degrees, what is the measure of
Answers
Answer:
m<PFR=62
m<RFT=28
m<MFE=28
m<EFT=152
HOPE THIS HELPS
-Todo <3
Step-by-step explanation:
90=x+6+3x-4
90=4x+2
-2 -2
88=4x
/4 /4
x=22
3(22)-4=66-4=62
22+6=28
180-28=152
Simplify the expression to standard form
-2.5(-3+ 4n+8)
Answers
Answer:
-12.5-10n
Step-by-step explanation:
jjjjjjjvuvubibuvuvuvibibivi
Answer:
distribute to get:
7.5 -10n -20
-10n - 12.5
The 7th grade class participated in the following
fitness challenges. If there are 250 students total,
how many participated in weight lifting?
Answers
Answer:
20 students
Step-by-step explanation:
Weight lifting:
8% = 0.08
250(0.08) = 20
Sasha buys bagels for her garage sale customers she buys all the chocolate chip bagels and half of the plain bagels each bagel cost 2.50 how much does Sasha spend on bagels
Answers
The question is incomplete:
Sasha buys bagels for her garage sale customers she buys all the chocolate chip bagels and half of the plain bagels each bagel cost 2.50 how much does Sasha spend on bagels? The table that shows the types of bagels sold at the bagel shop on Friday is attached.
a. $70
b. $20
c. $90
d. $110
Answer:
c. $90
Step-by-step explanation:
First, you need to find the amount of bagels that Sasha purchased. The statement indicates that she buys all the chocolate chip bagels and the table shows that 28 chocolate chips bagels were sold, so that's the amount she purchased of this type of bagels. Also, the statement indicates that she buys half of the plain bagels and the table says that 16 plain bagels were sold, so you have to divide this amount by 2:
16/2=8
Then, you have to add the amount of chocolate chips bagels plus the amount of plain bagels that Sasha purchased:
28+8=36
Now that you know the amount of bagels that Sasha purchased, you have to multiply this for 2.50 that is the price per bagel:
36*2.50=90
According to this, the answer is that Sasha spends $90 on bagels.
Since 6 is not a prefect square the square root of 6 is rational?
Answers
Answer: The square root of 6 is IRRATIONAL.
Answer:
True is 11/13 and -20 are rational
Step-by-step explanation:
Can someone help me pls?
I will mark you brainliest
Answers
diameter is 3.864
Explanation in photo below
plz help me check if its right its kinda hard :(
Answers
Answer:
It is correct actually.
Step-by-step explanation:
141 + 39 = 180
Yeah, that's correct
Explanation: Supplementary angles add to 180 degrees. If angle R is 39 degrees then angle S has to be 141 degrees because 39 + 141 = 180.
