Answer:
10
Step-by-step explanation:
Answer:
...........1 person...........
What is standard deviation for 110 120 120 130 140 140 150 160 160 170
Answer:
Standard Deviation (cont’d)Weights(pounds):110 120 130 140 150 150 160 170 180 190Deviation scores(x) forM = 150:-40 -30 -20 -10 0 0 10 20 30 40 Squared deviation scores(x2):1600 900 400 100 0 0 100 400 900 1600Sum of squared deviation scores:1600+900+400+100+0+0+100+400+900+1600 = 6000SD= √(6000/(N-1) = SD= √(6000/(9) = 25.82Standard Deviation Interpretation•Provides a “standard”—the SDindicates the average amount of deviation of scoresfrom the mean•Tells you how wrong, on average, the mean is•An SDprovides valuable information when the distribution is normal:–There are approximately three SDsabove and below the meanin a normal distribution•In a normal distribution, a fixed percentage of cases lie within certain distances from themeanSDs and Individual Scores•A person who scores one SDbelow the mean has a higher score than 16% of the cases (2.3% + 13.6%)•A person who scores one SDabove the mean has a higher score than 84% of the cases (50.0% + 34.1%)Example: Midterm marks:
What number is 40% of 160?
Answer:
64
Step-by-step explanation:
Yellow Cab Taxi charges a $1.75 flat rate in addition to $0.75 per mile. Katie has no more than $10 to spend on a ride. How many miles can Katie travel without exceeding her limit?
Answer:
11 miles
Step-by-step explanation:
10-1.75=8.25
8.25÷.75=11
Andres has $7 he needs $50 to buy a skateboard each week his grandmother pay him $4 to complete some chores
Answer:
she has to give him 4 dollars each week for 11 weeks since he already has 7 dollars.
Step-by-step explanation:
4 x 11 = 44 +7 = 51 so now he had enough for a skateboard.
6 is 16% of what number?
Answer:
37.5
Step-by-step explanation:
Answer:
6 is 16% of the number 37.5
Step-by-step explanation:
We have, 16% × x = 6
or, 16/100 × x = 6
Multiplying both sides by 100 and dividing both sides by 16,
we have x = 6 × 100/16
x = 37.5
100) Reflect the point in (a) the x-axis and (b) the y-axis.
36. (4,1)
37. (-2,3)
38. (2, -5
39. (-3.5, -2.5)
Answer:
Step-by-step explanation:
36. (4,1)
x-axis(4,-1)
y-axis(-4,1)
37.(-2,3)
x-axis(2,-3)
y-axis(-2,3)
38.(2,-5)
x-axis(-2,5)
y-axis(2,-5)
39.(-3.5, -2.5)
x-axis(-3.5,2.5)
y-axis(3.5,-2.5)
Please correct me I am wrong
Here is the y-axis formula (-x,y)
Here is the x-axis formula(x,-y)
Write a unit rate for the situation.
$100 donated for every 5 volunteers
PLZZZ I NEED HELP
Answer:
50 dollors
Step-by-step explanation:
HELP
What is the domain of the equation graphed below
Answer:
The domain of a function is the range of which the x-axis spans across the function. Range is the range of which the y-axis spans across the function. You can see here, there is not stoping point on either side of the function, meaning that the function reachest from -infinity to +infinity. So you answer would be:
B) All Real Numbers
Hope that I helped!
help me find the area :)
Answer:
20.625 ft²
(hope this is right :)
I need helppppp with this please
i need help with that tooooo
Jack wants to lose some weight and is highly motivated to follow the orders of his doctor. His doctor has given him a goal that he is to decrease his weight by 2 3/8 pounds per week. If Jack weighs 250 pounds
when he starts the diet, how much will he weigh after five weeks on the
diet?
Answer:
The answer would be 11 7/8 pounds
Step-by-step explanation:
2 3/8 times 5 equals 11 7/8.
Hope I helped!! :)
Sorry if it's wrong! :(
Pls mark brainlist.
Help ill mark u brainliest
Answer:
m∠ONB = 81°
Step-by-step explanation:
If angle MNJ and angle ONB are congruent and MNJ is 81 degrees and OJ is a straight line then ONB should also be 81 degrees in which the other side is 99 degrees.
-7/10 or -0.81 which is greater
Answer:
-0.81 one is greater
Step-by-step explanation:
Y'all I kinda need help in this problem
Answer:
4
Step-by-step explanation:
15km in 1 hour
60 minutes in 1 hour
60 min/15km
4 min per km
The temperature is -2 °C. If the temperature rises by 15 °C, what is the new temperature?
Answer:
The answer is 13°C because 15-2 gives you 13
Step-by-step explanation:
A plumber charges $65 to make a house call plus an additional charge of $42 per hour for labor. Write an equation to represent the total cost (y) for any number of hours (x).
A plumber charges $65 to make a house call plus an additional charge of $42 per hour for labor. Write an equation to represent the total cost (y) for any number of hours (x).
Answer:
the required equation to represent the total cost with respect to every hour will be
=》y = 42x + 65
Step-by-step explanation:
total cost (y) = charge to make a house call + additional charge for every our
so, total additional charge for x hours
= 42 × x = 42x
hence y = 65 + 42x ( where 65 is charge to make a house call , y is total cost and 42x is additional charge for x hours )
i hope u got it
have a great day ^_^
What is 3.016 written in words?
A Three and sixteen tenths
B Three and sixteen hundredths
C Three and sixteen thousandths
D Three and sixteen ten-thousandths
A regular octagonal pyramid. Each side of the base is 6 cm long. it has a height of 10cm. Find the surface area of the pyramid
9514 1404 393
Answer:
470.16 cm²
Step-by-step explanation:
The apothem of the base is used for two purposes: to find the area of the base, and to find the slant height of each face.
The apothem of the base for side length s is ...
s/2 = a·tan(π/8)
a = s/(2·tan(π/8)) ≈ 7.24 cm
The slant height of a triangular face is found using the Pythagorean theorem. The apothem of the base and the height are legs of the right triangle whose hypotenuse is the slant height. For slant height x, we have ...
x² = 10² + a² = 100 +52.46
x ≈ √152.46 ≈ 12.35
__
The area of the 8 triangular faces will be ...
A = 1/2Px . . . . where P is the perimeter of the pyramid
The area of the base will be ...
A = 1/2Pa
So, the total surface area is ...
A = 1/2P(a + x) = (1/2)(8)(6 cm)(7.24 +12.35 cm) ≈ 470.16 cm²
The answer is 470.16 cm²
What is the distance between the points R(5, 7) and S(-2, 3)?
Answer:
Step-by-step explanation:
D
The distance between points is √65.
What is distance?The length of the line that connects two points is the distance between them. The distance can be determined by subtracting the coordinates that are not the same if the two points are on the same horizontal or vertical line.
The distance formula is used in analytic geometry to determine the distance between two lines, the sum of the lengths of all sides of a polygon, the perimeter of polygons on a coordinate plane, the area of polygons, and a variety of other measurements.
Given coordinates
R(5, 7) and S(-2, 3)
to find the distance between
the formula of distance for coordinates is
d = [tex]\sqrt{(y_{2} - y_{1} )^{2} + (x_{2} - x_{1} )^{2} }[/tex]
here y₂ = 3, y₁ = 7
x₂ = -2, x₁ = 5
substitute value in equation we get
d = [tex]\sqrt{({3 - 7 )^{2} + (-2 - 5 )^{2} }[/tex]
d = [tex]\sqrt{({-4 )^{2} + (-7 )^{2} }[/tex]
d = √(16 + 49)
d = √65
Hence the distance is √65.
Learn more about distance;
https://brainly.com/question/15172156
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A brownie recipe requires 4 cups of flour for 6 persons how much flour do you require for 24 persons
Some one help please fast help ASAP
Answer: (x, y) --> (x, -y)
Step-by-step explanation:
This is a reflection over the x-axis so its only the y-intercept that changes.
Answer:
its a reflection
Step-by-step explanation:
If it were a rotation, it wouldnt have overlapped.
If it were a translation, It would have been the wrong way up and not overlapping.
When reflected over line x, it will overlap because it stays rigid and does not change shape or size.
hope this helps :)
What is the measure of the missing angle in this triangle?
25°
155
35°
60°
Answer: im just going to guess 35 degrees
Step-by-step explanation:
Answer:
its 25
Step-by-step explanation:
35+120 =155
180 (the sum of a triangle) - 155 = 25
missing triangle equals= 25
to check= add the 3 triangles together, if the sum adds up to 180 its correct.
125+35+25= 180 √
Can someone help with this I’ll probably give you brainliest. It is due at 11:59 pm January 21st
Answer:
1. x^2-5
2. 13x+3
3. Add −5 and 3
2x−13x-2
hope this helps!!:)
Step-by-step explanation:
Simplify the expression
6s-6s=?
Answer:
0
Step-by-step explanation:
6-6=0 so when you multiply s by 0 its 0
help me fast for brainiest!
How many solutions will this system of equations have??
Please explain your thinking
A mountain climber ascends 800 feet per hour from his original
position. After 6 hours, his final position is 11,600 feet above sea
level. Find the climber's original position,
Answer:
4,800
Step-by-step explanation:
Just multiply 800 x 6, which gets 6,800. Then, get 11,600 and subtract 6,800 from it. You'll get 4,800.
2. Find the distance between the two points on the coordinate plane given below.
What is the slope of the line that contains the points (-4, 2) and (6, -3)?
Answer:
-1/2 or [tex]-\frac{1}{2}[/tex]
Step-by-step explanation:
to find the slope, use the formula
(y₁ - y₂)/(x₁ - x₂)
(2 - -3)/(-4 - 6)
(2 + 3)/(- 4 - 6)
5/-10
1/-2
-1/2
4x2 - 7 + 2x - 3x² + 8x - 6
Answer:
(4x2 - 2x) - (-5x2 - 8x)
= 4x2 - 2x + 5x2 + 8x.
= 4x2 + 5x2 - 2x + 8x.
= 9x2 + 6x.
= 3x(3x + 2).
Answer: 3x(3x + 2)
Step-by-step explanation: