Answer:
zero
Step-by-step explanation:
Answer:
I got this same question on my quiz, so I added the other two questions as well, with their answers.
Step-by-step explanation:
1. What is the standard deviation of the data set? Round to the nearest tenth if needed.
2, 4, 7, 8, 9
Answer: 2.9
2. Data Set A has a mean of 215 and a standard deviation of 35. Data Set B has a mean of 400 and a standard deviation of 12. Which data set is more spread out?
Answer: Data Set A
3. What is the standard deviation of a data set whose values are all the same?
Answer: 0
What are the percents of each of these?
Answer:
1. 80%
2. 12.5%
3. 10%
Step-by-step explanation:
The figure contains 100 equal squares, so the number of squares shaded is equal to the percentage of squares shaded.
What is 2.1 written as a mixed number?
If your talking about decimals 2.1 then:
Step 1) Convert 2.1 into a fraction; 21/10
Step 2) Convert 21/10 into a mixed number. 10 can go in 21 2 times, leaving us with 1. 2 is the whole number and 1 is the numerator. 10 will continue to be the deniometor.
2 1/10
I hope I've helped!
Please help!!!! Due tm!!! NO LINK
Answer:
-42
Step-by-step explanation:
Can someone explain this to me since I don’t get it that well?
Draw axes of symmetry of these shapes. Circle the shapes that have vertical symmetry.
Question 25
so it'd be the first, third and fourth one. all you gotta do is draw a vertical line through the middle of the 1st, 3rd and 4th.
In 2008, Social Security tax was 6.1%, to the maximum income of $108,000. If Randall
earned $116,200 in 2008, how much Social Security did he pay?
Answers
A. 2
B. -2
C. 10
D. -10
Answer:b
10 to 20 is 10 and 80 to 60 is -20 so it’s -20/10 which is -2
Yo can you help with this
Answer:
yea for sure
Step-by-step explanation:
So the equation is y = x + 8. We already have the answers for x, so we just need to solve for y.
We can use this same equatoin to find y.
Let's start with the first example, 2.
y = 2 + 8. 2 + 8 = 10, so the first box would be 10.
next is 0. 0 + 8 is 8 , so the second box would be 8.
The third box has x as 4. 4+8 is 12, so the last box is 12.
Hope this helps!
x, y
(2, 10)
(0, 8)
(4, 12)
all you need to do is add the numbers under x 2,0,4 to 8. y=x+8 just plug the numbers in.
10=2+8
12=4+8
8=0+8
Nina can braid 144 inches of rope in 3 hours find her unit rate round your answer to the nearest thousand
Answer:
48 inches
or
0.8 minutes
Step-by-step explanation:
To find the unit rate of inches per hour, divide 144 by 3.
144÷3=48
You don't need to round because there are no decimals.
To find the time to braid 1 inch, first multiply 3 by 60 (because there are 60 minutes in 1 hour).
3×60=180
Then divide 144 by 180.
144÷180= 0.8
You don't need to round because there are no thousandths.
Does anyone know how to do this I really need help on this?
11. What is the solution to the equation below
x = 5 - (32 + 1) + 2
-3
-1
Ο Α
OB
0
17
Answer:
-3
5-(9+1)+2
=7-10
=-3
I hope this helps you
[tex]\large \mathfrak{Solution : }[/tex]
let's solve for x :
[tex]5 - (3 {}^{2} + 1) + 2[/tex][tex]7- (9 + 1) [/tex][tex]7 - 10[/tex][tex] - 3[/tex]hence, the value of x = -3
It is 2.5 to LR and another hour to Dallas
If I am traveling to Little
Rock for a flight, I have to
drive 2.5 hours. I am
flying to Dallas. To fly to
Dallas it takes
approximately an hour
from Little Rock. What
fraction of my trip is the
drive to Little Rock?
Round to the nearest
hundreth.
Answer:
Step-by-step explanation:
First make sure everything is in hours, yes everything is in hours !
So the fraction of little Rock to the rest is little Rock over the total.
2.5 hour/ 3.5 hours
0.714
A roller coaster car goes above and below ground. Use the number line to
changes in height. What is the height of the car at the end of the ride?
Answer:
The height of the car at the end of the ride is 4 meters
Step-by-step explanation:
How many terms are in the algebraic expression 2y + 3x - 5x^2 - 9
Answer:.
Step-by-step explanation:
A term is the product of its factor. Terms are combined to form a algebraic expressions.
Terms:
2y
3x
-5x²
-9
There are 4 terms in this expression.
Bài 1: Tính giá trị của biểu thức sau:
a) A = 4x – ( x +3)2 + ( x+3)(x-3) với x = - 2,4
b) B = ( 3x +4)2 -10x – 9( x - 4)(4+x) với x = -0,1
c) C = ( x + 5)2 - 2 ( x – 6 )( x+ 6) + ( x+2)( x-4) với x = -1/2
Answer:
Lời giải có ở trong ảnh bạn nhé
Can i get help with 6=3/4(10x+16)
Answer:
Check the steps shown in the picture : Hope it helps.
I need help ASAP pleaseee
Answer:Price of laptop A = $1220
Step-by-step explanation:
Sum of the price: A + B = 2185
Sum of the price: A + C = 2571
B : C = 5 : 7
B = 5/7 × C
So, replace the B:
A + 5/7 C = 2185
A + C = 2571
Eliminate by subtracting the first from the second: 2/7 C = 386
C = 1351
So, A = 2571 - 1351 = 1220
Convert −360° to radian measure in terms of π.
Answer:
[tex]to \: convert \: degree \: to \: radian \: \: multiply \\ \: by \: \frac{\pi}{180} \\ so \: here \\ - 360 \times \frac{\pi}{18 0 } \\ = - 2\pi \\ thank \: you[/tex]
hi I just need help on b thank you ASAP
Answer:
Step-by-step explanation:
Kojo wants to be an author. To improve his writing skills, every day after school he writes 3 pages of a story he is working on. Kojo has been writing his story for days. He has a total of 81 pages completed.
Write an equation to describe this situation.
Answer:
days = pages / rate = 81 pages // 3 pages / day
Step-by-step explanation:
pages = 81 pages
rate = 3 pages / day
days = ?
days = pages / rate
days = 81 // 3 pages / day
days = 27 days.
Line l contains the points A(-2, 2) and B(-1,0), and line k contains the points C(0,4) and D(1, 2).
Are lines land k, parallel? Justify your response.
O Yes, both lines have a slope of —2, so they are parallel.
O No, the two lines do not have the same slope, so they are not parallel.
O There is not enough information to determine the answer.
O Yes, both lines have a slope of 2, so they are parallel.
Answer:
Yes, both lines have a slope of −2,
so they are parallel.
Find all the missing elements:
В.
a
С
B = 60°
b = 7
C = 3
Ab
C
A = [?]° C = [ ]º a = [ ]
Round to the nearest tenth.
I
Enter
Answer:
A=90° C=30° a=8
Step-by-step explanation:
A=90° C=30° a=8
The average number of workers of 12 companies are 42. If the average number of women of the same companies are 25, calculate the number of men in the companies.
Please I really need your help now.
Answer:
204 men.
Step-by-step explanation:
Total number of workers in all the companies = 42 * 12.
Total number of women in all the companies = 25 * 12.
So the total number of men = 12(42 - 25)
= 12 * 17
= 204 .
Answer:
204.
Step-by-step explanation:
Joes account was 1 more than one half of Chandras account. The sum of their accounts was $751. Find the amount of Joes account
Answer:
251$
Step-by-step explanation:
Let's say x represents Joes's account.
And y represents Chandra.
Since Joses account was 1 more than one half of chandra, the amount for Joes would be x = 1/2*y + 1
Now we can just say y = Chandra's amount.
So x + y = 751
And x = 1/2*y + 1
We have a systems of equation, and just plug in 1/2*y + 1 for x.
1/2*y + 1 + y = 751
1/2*y + y = 750 (subtract both sides by 1)
distribute y so...
y(1/2 + 1) = 750
y = 750/1.5
y = 500
Remember, y is Chandra. So plug in 500 for y in Joses equation, so 1/2(500) +
is 250 +1 so 251.
The line joining (3, p) to (7, –4p) is parallel to the line joining (–1, –3) to (3, 7). Find p.
Answer:
p = - 2
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 1, - 3) and (x₂, y₂ ) = (3, 7)
m = [tex]\frac{7-(-3)}{3-(-1)}[/tex] = [tex]\frac{7+3}{3+1}[/tex] = [tex]\frac{10}{4}[/tex] = [tex]\frac{5}{2}[/tex]
Parallel lines have equal slopes
Calculate the slope of the other 2 points and equate to [tex]\frac{5}{2}[/tex]
with (x₁, y₁ ) = (3, p) and (x₂, y₂ ) = (7, - 4p)
m = [tex]\frac{-4p-p}{7-3}[/tex] = [tex]\frac{-5p}{4}[/tex] = [tex]\frac{5}{2}[/tex] ( cross- multiply )
- 10p = 20 ( divide both sides by - 10 )
p = - 2
jamar bought a bicycle that cost 20 dollars when it was new. if he eventually sold it for 10%of the original cost,how much was it sold for?
Answer:
$2
Step-by-step explanation:
We're trying to find out 10% of the price of a bicycle
to do this, convert 20 to 0.20 and multiply it by 10%
0.20 × 10 = $2
it was sold for $2
There was 1/3 of a cake left after a party. Dad cut it into 4 equal pieces. What part of the cake was each piece?
Answer:
1/12
Step-by-step explanation:
Imagine a whole cake which is split into thirds, then you cut each third into four equal pieces, at the total you'll have 12 pieces so you'll have 1/12.
1/3 * 1/4 = 1/12
13/17 as a decimal and a percent
Answer:
53.8462%
1.857
Step-by-step explanation:
what is the ratio equalevent for 1:2
7:?
Answer:
the ratio equalevent for 1:2
7:21
How many milligrams are equal to 39 grams?
A 390 milligrams
B 390,000 milligrams
C 3,900 milligrams
D 39,000 milligrams
Answer:
39000
1 gram=1000milligrams
hence,
39 grams=39×1000milligrams
=39000milligrams
A pile of 15 boxes is 3 metres high. What is the depth of each box?
Answer:
15 boxes=3m=300cm
1 box=300cm÷15
=20cm
Answer:
Each box is 1/5 metres or 0.2 metres deep.
Step-by-step explanation:
There are 15 boxes, total height is 3 meters
Depth of each box:
[tex]15 \: boxes = 3 \: meters \\ 1 \: box = \{ \frac{(1 \times 3)}{15} \} \: meters \\ \\ = \frac{3}{15} \: m \\ \\ { \boxed{ \boxed{= \frac{1}{5} \: metres}}} \: \: or \: \: { \boxed{ \boxed{ = 0.2 \: m}}}[/tex]
