The mean of the heights of roller coaster is 27.92 feet, median is 21, mode is 16 and mid range is 35.5.
Given heights in feet of 14 roller coaster 11,12,13,14,16,21,25,26,31,40,51,55,60.
We have to calculate the mean, median, mid range and mode for the data.
Mean is the sum of numbers divided by the numbers.
Mean=∑X/n
∑X=11+12+13+14+16+21+25+26+31+40+51+55+60
=391
n=14
Mean=391/14
=27.92 feet.
Median is the central value of the data given.
Median=(n/2)th term ,when n is even, ( n/2)th term, (n+1)/2th term when n is odd.
Median=14/2th term=7th term which is 21.
Mode is the number which has higher frequency.
Mode is 16 because it comes 2 times.
Mid range is the sum of upper value and lower value of data divided by 2.
Mid range=(11+60)/2==35.5.
Hence the mean is 27.92 feet, median is 21 feet, mid range is 35.5 feet, mode is 16 feet.
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Question is incomplete as the values of height should be included as under:
11,12,13,14,16,16,21,25,26,31,40,51,55,60.
1. There are two cyclists (Cyclist A: 225 lb. and Cyclist B: 145 lb.) riding the same course on the same style bike and
all other variables are the same. Using the four external forces of resistance, explain which cyclist will come to a
stop first if they stopped pedaling. Be sure to include each of the four factor's contribution and how each impacted
your answer. (5 points)
The cyclist that will come to stop first when the brake is applied, is the cyclist with lesser mass which is Cyclist B because of its lesser inertia.
What is law of inertia?
The law of inertia states that an object at rest or uniform motion in a straight line will continue in that path unless acted upon by an external force.
Inertia depends on mass of the object, the more massive an object is, the more reluctant it will be to stop and vice versa.
Thus, the cyclist that will come to stop first when the brake is applied, is the cyclist with lesser mass which is Cyclist B because of its lesser inertia.
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Suppose that Aces can be either high or low; that is, that {A, 2, 3, 4, 5} is a straight, and so is {10, Jack, Queen, King, Ace}. Moreover, a hand that is an Ace-high beats a King-high, etc. The number of ways of getting a five card hand that is two pair from a standard deck of cards is (Q8) The probability of being dealt a five card hand that is two pair from a well shuffled standard deck of cards is
The probability of being dealt a five card hand that is two pair from a well shuffled standard deck of cards is 40.
According to the statement
I have 10 starting cards, from Ace to 10, and 4 suits,
and by this way we get the 40 subsets and because of these subsets there is a probability becomes 40.
So, The probability of being dealt a five card hand that is two pair from a well shuffled standard deck of cards is 40.
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A circular sheet of paper of radius 6 inches is cut into 3 equal sectors, and each sector is formed into a cone with no overlap. What is the height in inches of the cone
The height of the cone is 4√2 inches.
The circumference of the base of each cone will be the arc length of one of the sectors
= 2 [tex]\pi[/tex] (6) / 3
= 4 [tex]\pi[/tex] inches
So, the radius, r, of each cone (in inches) is given by :
4pi = 2 [tex]\pi[/tex] * r
4 = 2r
2 = r
Using the Pythagorean Theorem, the cone height, h, is given by :
h = √[ slant height^2 - radius^2 ]
= √ [ 6^2 - 2^2 ]
= √32
= 4√2 inches
In arithmetic, the Pythagorean theorem, or Pythagoras' theorem, is a essential relation in Euclidean geometry a few of the three facets of a right triangle. It states that the vicinity of the square whose facet is the hypotenuse is identical to the sum of the regions of the squares on the other two facets.
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Pls help solve part c
Answer:
See image below
Step-by-step explanation:
Every point starting at the y axis and extending left to ∞ represents the inequality x ≤ 0
Marjorie and Blaine make chairs together. Marjorie builds the seat and Blaine independently sews the cushions to rest on top of them. It takes Marjorie 1 1/2hours to build the seat and Blaine 40 minutes to sew the cushion. How long would it take for them to make 10 chairs?
Making 10 chairs would take Marjorie and Blaine 21 hours and 40 minutes.
How long does it take to make 10 chairs?The total time it takes Marjorie and Blaine to perform their respective tasks in building a chair is multiplied by 10 chairs, respectively. This time is known as their speed.
The resulting figures are summed to get the total time.
Data and Calculations:The total time it takes Marjorie to build a chair is 15 hours (1.5 hours x 10)
The total time it takes Baline to sew cushions per chair is 400 minutes (40 x 10) or 6 hours and 40 minutes.
Therefore, the total time to build 10 chairs is 21 hours, 40 minutes (15 hours + 6 hours and 40 minutes).
Thus, making 10 chairs would take Marjorie and Blaine 21 hours and 40 minutes.
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38 students are going on a field trip. parents will drive. each car can hold 4 students along with the driver. how many cars will be needed?
Answer:
8 cars :)
Step-by-step explanation:
1 car: 1 driver + 4 students = 5 people total
We must divide to solve :)
38/5 = 7 cars with 3 without a car.
Sine there is a remainder we will need 1 ore car so 8 cars altogether :)
Have an amazing day!!
Please rate and mark brainliest!!
Which point corresponds to the real zero of the graph of y = log3 (x+2) - 1?
O (-1,-1)
O (1,0)
O (-1,0)
O (0,-.369)
E
Answer:
(1, 0 )
Step-by-step explanation:
using the rule of logarithms
[tex]log_{b}[/tex] x = n ⇒ x = [tex]b^{n}[/tex] , then
y = [tex]log_{3}[/tex] (x + 2) - 1
to find the zero let y = 0 , that is
[tex]log_{3}[/tex] (x + 2) - 1 = 0 ( add 1 to both sides )
[tex]log_{3}[/tex] (x + 2) = 1 , then
x + 2 = [tex]3^{1}[/tex] = 3 ( subtract 2 from both sides )
x = 1
the zero is (1, 0 )
Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify. 6 more than the cube of a number.
Answer:
Step-by-step explanation:
Comment
Start with the algebraic expression. Always do that x cubed means x^3 power or x * x * x.
Answer x^3 + 6
math!! please please helppp!!!
What is the slope of the line below?
(i attached an image)
a) (0,4)
b) -1/3
c) (-1.5,0)
d) 3
e) 4
f) (0,4)
g) -3
h) 1/3
Answer:
D
Step-by-step explanation:
you can use the slope intercept form: y = mx + b.
y = y cooordinate
m = slope
x = x coordinate
b = y intercept
the y intercept is 4.
the point (1, 7) is what we're going to use.
so the new equation is
7 = m + 4 (it would be 1m, but i rewrote it to be mathmatically correct)
subtract 4 from both sides, you should have 3 = m.
the slope is 3
He is offered a discount for the first five months. after this period, his rate increases by $8.50 per month. his total cost at the end of the year is $245.50. paul wrote the following equation represent his plan. 5x + 7(x + 8.50) = 245.50 part a: how much, in total, will paul pay during the five discounted months of his plan? (1 point
The first five months Paul paid and in the next seven months he paid 24.
What is a Discount ?Discounts are defined as lowered prices or the sale of an item for less than it would typically cost. The fundamental formula for calculating a discount is to multiply the original price by the given percentage rate in decimal form. We must deduct the discount from the original price to determine the item's sale price. A discount is an amount that is subtracted from the regular price of an item.
Paul represent his plan in the form of equation:
[tex]5 x+7(x+8.50)=245.50[/tex]
Where x is an amount for the first [tex]5[/tex] months that is paid by Paul after the discount and [tex](x+8.50)[/tex] is an amount for the next [tex]7[/tex] month after discount.
[tex]&\Rightarrow \quad 5 x+7 x+59.50=245.50 \\&\Rightarrow \quad 12 x=186 \\&\Rightarrow \quad x=\frac{186}{12} \\&\Rightarrow \quad x=15.50\end{aligned}[/tex]
For the next 7 month:
[tex](x+8.50)=(15.50+8.50)=\$ 24[/tex]
Therefore, The first [tex]5[/tex] months Paul paid $ 15.50, and in the next [tex]7[/tex] months he paid $ 24.
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(PLEASE HELP ASAP!!) Look at the diagram of the tennis court below. The diagram contains examples of line segments, angles, planes, and vertices. Write the geometric term that best describes each part of the tennis court.
A Tennis Court
a. Playing Surface
b. Corner of Serving Box
c. Baseline
d. Net
e. Intersection of Baseline and Side Line
The geometric terms which best describe each part of this tennis court are:
Playing surface ⇒ PlaneCorner of serving box ⇒ VertexBaseline ⇒ LineNet ⇒ PlaneIntersection of baseline and side line ⇒ Line.How to choose the geometric terms?In Geometry, there are various geometric terms and these include the following:
Point: it is used to represent any intersection at a point.Line (line segment): it is used to show the distance between endpoints.Vertex: it is used to represent a corner.Plane: it is used to represent a surface.In this context, we can logically deduce that the geometric terms which best describe each part of this tennis court are:
Playing surface can best be described by a plane.Corner of serving box can best be described by a vertex.Baseline can best be described by a line.Net can best be described by a plane.Intersection of baseline and side line can best be described by a line.Learn more about geometry terms here: https://brainly.com/question/17260558
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Answer:
a. plane
b. angle
c. line segment
d. plane
e. vertex or angle
Step-by-step explanation:
This is the CORRECT answer
I find this question kinda hard
Answer:
Step-by-step explanation:
Writing Exercises
297. Which method do you prefer to use when multiplying a trinomial by a binomial: the Distributive Property or the Vertical Method? Why?
Answer:
Hence we prefer the distributive method when multiplying trinomial by a binomial.
Step-by-step explanation:
Explanation
We have to explain when multiplying a trinomial by a binomial which method we prefer from the Distributive Property or the Vertical Method.We prefer the Distributive method because the method is the quickest than the vertical method methods as the vertical method has more steps than the distributive property also the vertical method is a bit complicated than the distributive method.At the local fair, 358 people waited in line for a boat ride. The boat can hold 8 people. How many trips will the boat have to take for everyone to get a ride? .
Translate the triangle.
Then enter the new coordinates.
(3,4) A
C
(1,2)
B
(4,2)
<-2,4>
A' (1.8)
B'([?], [])
C'([] [])
The coordinates of the vertices of the translated triangle are A'(x, y) = (1, 8), B'(x, y) = (2, 6) and C'(x, y) = (- 1, 6).
How to translate a triangle by transformation rules
Graphically speaking, triangles can be generated by knowing its three vertices. In this question we must apply a kind of rigid transformation known as translation, whose formula is:
P'(x, y) = P(x, y) + T(x, y) (1)
Where:
P(x, y) - Original pointP'(x, y) - Resulting pointT(x, y) - Translation vectorIf we know that A(x, y) = (3, 4), B(x, y) = (4, 2), C(x, y) = (1, 2) and T(x, y) = (-2, 4), then the new coordinates are:
A'(x, y) = (3, 4) + (- 2, 4)
A'(x, y) = (1, 8)
B'(x, y) = (4, 2) + (- 2, 4)
B'(x, y) = (2, 6)
C'(x, y) = (1, 2) + (- 2, 4)
C'(x, y) = (- 1, 6)
Remark
The statement presents typing mistakes, correct form is:
Translate the triangle with the vector <- 2, 4>, then enter the new coordinates:
Original coordinates - A(x, y) = (3, 4), B(x, y) = (4, 2), C(x, y) = (1, 2).
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Joey brought a plot of land measuring 1 square mile, on which he plans to grow blueberries. He hires 346 people to plant each seedling, and each seedling requires 1.5ft of land. How many square feet of land can the 346 workers plant each minute?
The square feet of land that 346 workers can plant each minute is 2076 ft.
How many square feet of land can the 346 workers plant each minute?Multiplication is the mathematical operation that is used to determine the product of two or more numbers.
Square feet that can be planted each minute :
number of workers x feet of each seeding x ( one minute / time required to plant one seeding)
346 X 1.5 X (60 / 20) = 2076 ft
Here is the complete question:
Joey bought a plot of land measuring 1 square mile, on which he plans to grow blueberries. He hires 346 people to plant seedlings. It takes about 20 seconds to plant a seedling. each seedling requires 1.5ft of land. How many square feet of land can the 346 workers plant each minute?
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Consider the relation given by the graph shown below.
a) Is the relation a function? Why or why not?
b) Determine the domain and range of this graph.
The point P(6, –1) is translated according to the rule (x, y) → (x – 5, y – 2).
What are the coordinates of P'?
P’(1, 2)
P'(1, 1)
P'(1, –3)
P'(4, 4)
The resulting point by considering that P(x, y) = (6, - 1) and P'(x, y) = P(x, y) + (- 5, - 2) is equal to the coordinates P'(x, y) = (1, - 3). (Right choice: C)
How to determined a resulting point by translation
In this question we need to determine the new location of a point by using a translation formula. Translations are rigid transformations in which a point is translated on a Cartesian plane. We have the following formula:
P'(x, y) = P(x, y) + (- 5, - 2) (1)
Where:
P(x, y) - Original pointP'(x, y) - Resulting pointIf we know that P(x, y) = (6, - 1), then the resulting point is:
P'(x, y) = (6, - 1) + (- 5, - 2)
P'(x, y) = (1, - 3)
The resulting point by considering that P(x, y) = (6, - 1) and P'(x, y) = P(x, y) + (- 5, - 2) is equal to the coordinates P'(x, y) = (1, - 3). (Right choice: C)
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Answer:
c
Step-by-step explanation:
Find the Value of -3/7 ÷ 4
please answer fast
Answer:
Step-by-step explanation:
The graph above is a transformation of the function x2 Write an equation for the function graphed above
Answer: y=0,5x²-x-1,5.
Step-by-step explanation:
[tex](-1;0)\ \ \ \ (3;0)\ \ \ \ (1;-2) \ \ \ \ y=ax^2+bx+c\ ?\\\left\{\begin{array}{ccc}a*(-1)^2+b*(-1)+c=0\\a*3^2+b*3+c=0\\a*1^2+b*1+c=-2\end{array}\right \ \ \ \ \ \left\{\begin{array}{ccc}a-b+c=0\ \ (1)\\9a+3b+c=0\ (2)\\a+b+c=-2\ (3)\end{array}\right \\[/tex]
We summarize (1) and (3):
[tex]2a+2c=-2\ |:2\\a+c=-1\ \ \ \ \Rightarrow\\a+b+c=-2\\(a+s)+b=-2\\-1+b=-2\\b=-1.[/tex]
Substitute b=-1 into (2):
[tex]9a+3*(-1)+c=0\\9a-3+c=0\\9a+c=3\ \ (5).\\[/tex]
From (5) subtract (4):
[tex]8a=4\ |:8\\a=0,5.\ \ \ \ \Rightarrow\\[/tex]
Substitute a=0,5 into (4):
[tex]0,5+c=-1\\c=-1,5.[/tex]
Hense:
y=0,5x²-x-1,5.
1/2 of the women in the Spring Garden Club are over 60 years old. 1/4 of the remainder are under 40. What part of the membership is between 40 and 60 years old?
(Please explain with steps!! thank you)
A) 1/4
B) 3/8
C) 3/4
D) 5/8
A)1/4
Step-by-step explanation:
1/2=2/4
2/4+1/4=3/4
4/4-3/4=1/4
e.) Find the gradient of the line passes through the origin and point
[tex](2 \frac{1}{4} .4 \frac{1}{2} )[/tex]
What is the y coordinate of the line when x = 8? pls answer i will mark brainlest.
Answer:
y is x
Step-by-step explanation:
l don't know step by step explanation
Solve the proportion.
3/6 = 7/d
To solve this proportion:
[tex]\frac{3}{6} =\frac{7}{d}[/tex]
Simplify 3/6, it reduces to 1/2
[tex]\frac{1}{2} =\frac{7}{d}[/tex]
Then do the Criss cross method
1d = 7 ×2
d=14
Hope it helps!
Answer:
d = 14
Step-by-step explanation:
We can use cross products to solve the proportion
3/6 = 7/d
3*d = 7*6
3d = 42
Divide each side by 3
3d/3 = 42/3
d = 14
PLEASE HELP!!! what function is graphed below?
The function in the given graph obtained from the y and x-intercept is the option;
[tex]y = cot \left( \frac{3}{4} \cdot \left(x - \frac{\pi}{6} \right)\right)[/tex]
Which method can be used to find the correct function?From the given graph, we have;
At x = 0, y < -2Similarly;
At x = (5/6)•π, y ≈ 0The above relationship corresponds with the following function;
[tex]y = cot \left( \frac{3}{4} \cdot \left(x - \frac{\pi}{6} \right)\right)[/tex]
The function graphed is therefore;
[tex]y = cot \left( \frac{3}{4} \cdot \left(x - \frac{\pi}{6} \right)\right)[/tex]
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I’m a football game the home team scored 2 times as many points as the visiting team, if the game ended with a total of 21 points. How many points did the visiting team score?
admission to a carnival is $4 for children and $6 for adults. what is the ratio of the number of children to the number of adults in this group
The ratio of the number of children to the number of adults in this group is 2 : 3
How to determine the ratio?The admission is given as:
Children=4
Adult = 6
Express as ratio
Ratio = Children : Adult
This gives
Children : Adult = 4 : 6
Simplify
Children : Adult = 2 : 3
Hence, the ratio of the number of children to the number of adults in this group is 2 : 3
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what is slope of line graped below?
The slope of the line is 1
to find the slope its rise (y value)/run (x value); the equation is
[tex] \frac{y2 - y1}{x2 - x1} [/tex]
plugging the values from the graph into the equation:
[tex] \frac{4 - 2}{4 - 2} [/tex]
which simplifies to simply 1
For parallelogram RYFU, let N be the intersection point of the diagonals. Let RF = 7x-11 and NF = 2x+2. Find the measurement of EVERYTHING that you know, if possible.
The diagonals of parallelogram RYUF each measure 24 units.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Diagonals of parallelogram are congruent and bisect each other.
Point N is the intersection point of the diagonals of parallelogram RYFU. Hence, RF is the diagonal and N is the midpoint:
2 * NF = RF
2(2x + 2) = 7x - 11
x = 5
RF = 7(5) - 11 = 24
The diagonals of parallelogram RYUF each measure 24 units.
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Which expression is equivalent to (tangent (startfraction theta over 2 endfraction) ) (negative sine theta)?
The given expression is equivalent to -1 + cos θ. Option B
What is trigonometry?
Trigonometry can be seen as the branch of mathematics that deals with the relations of the sides and angles of triangles and with the functions of any angles.
The problem deduced from the information is;
[tex]-tan\frac{\alpha }{2} ( -5 sin\alpha)[/tex]
It is simplified thus
[tex]\frac{\frac{sin\alpha }{2} }{\frac{cos \alpha }{2} }[/tex] × [tex](- 2 sin\frac{\alpha }{2} * cos \frac{\alpha }{2} )[/tex]
We then have
[tex]-1 + cos \alpha[/tex]
Therefore, the given expression is equivalent to -1 + cos θ. Option B
The complete question is;
Which expression is equivalent to (tangent (StartFraction theta Over 2 EndFraction) ) (negative sine theta)?
– 1 – cos(ϴ)
– 1 + cos(ϴ)
1 + cos(ϴ)
1 – cos(ϴ)
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Each treasure hunt team will have 5 people. So far 42 people have signed up. How many more people are needed to make every team equal? How many teams will there be?
Answer:
1) 3 more people
2) 9 teams
Step-by-step explanation:
The divisibility rule for 5 is that it must end in 5 and 0
so the next one is 45, so 3 more people
----------------------- ----------------------- ----------------------- -----------------------
45/5=9 teams