9514 1404 393
Answer:
4.5
Step-by-step explanation:
It appears the 5 integers must be {3, 3, 4, 5, 7}.
For the mode to be unique, there must be more than one '3', and there cannot be any other repeated numbers. For 4 to be the median, it must be the 3rd-highest number. Then the remaining numbers must be integers greater than 4 with a sum of 12 for the mean to be 4.4.
When 8 is added to the collection, the median is now the average of 4 and 5, so is 4.5.
The new median is 4.5.
_____
Comment on vocabulary
mean: the sum of numbers divided by the number of numbers. 5 numbers with a mean of 4.4 will have a sum of 5×4.4 = 22.
median: the middle number of a collection of an odd number of numbers, when sorted from lowest to highest. It is the 3rd number of a group of 5 numbers. When there are an even number of numbers in the group, the median is the average of the middle two in the sorted list. Here, that means the 3rd number in the list of 5 is '4'. When 8 is added, 4 becomes one of the numbers contributing to the average that will be the new median.
mode: the member of the group that appears the most times. When the mode is unique, it means there are no other numbers repeated as often. Here, we know the 3rd number (of 5) is 4, so there can only be two numbers '3' in the collection. That 3 is the unique mode means no other numbers are repeated at all.
Solve & Discuss It!
>) Jamal can run 1 mile in 5.05 minutes.
If Jamal maintains this pace during
a 5-kilometer (5K) race, he expects
to break the course record of
15.25 minutes. Is Jamal's expectation
reasonable? Explain.
Answer:
Yes, his expectation is reasonable
Step-by-step explanation:
Mathematically;
1 mile = 1.609344 km
If he runs this in 5 minutes;
his speed will be 1.609344/5 = 0.3219 km/m
Now he intends breaking the record of 5 kilometers in 15.25 minutes
Distance = speed * time
What we shall have in this case will be;
15.25 * 0.3219 = 4.908
Approximately this is 5 km
So we can conclude that he will break the record if he runs at this speed
What is 8 (z + 8) expanded
Multiply 8 and z, and 8 and 8.
8z+64
---
hope it helps
A kangaroo hopped 3,5203,5203, comma, 520 yards to the lake with her baby in her pouch. She hopped the remaining 5,2805,2805, comma, 280 yards without her baby in her pouch.
How many miles did the kangaroo hop to the lake?
Answer:
so im a little confused 3,5203,5203, is not a proper number and there is not enought yards to make a full mile could you reword it?
Step-by-step explanation:
what happens to the function y=3^x when x increases by 1
When x increases by 1 in the function y=3^x, the value of the function will be multiplied by 3.
How to determine what happens when x is increased by 1Given the function
y = 3^x
An increment in the value of x would make the expression be multiplied by 3
To see why this happens, we can compare the value of the function at x and x+1:
y(x+1) = 3^(x+1)
y(x+1) = 3^x * 3 (by the laws of exponents)
y(x+1) = 3 * 3^x
Therefore, we can see that when x increases by 1, the value of the function is multiplied by 3.
This means that the function grows very quickly as x increases.
Read more about exponential functions at
https://brainly.com/question/2456547
#SPJ1
write the expression as a single logarithm log{3} 40 -log{3} 10 show all steps very clearly please
Answer:
Use the quotient property of logarithms, logb(x)−logb(y)=logb(xy) log b ( x ) - log b ( y ) = log b ( x y ) . log3(4010) log 3 ( 40 10 ). Step 2.
find the velocity and acceleration vectors in terms of and . r= 2cost and theta = 9t
So the velocity vector is v = (-2sin(t)) i + (2cos(t)) j, and the acceleration vector is a = (-2cos(t)) i + (-2sin(t)) j, both in terms of t.
Given
r= 2cost and theta = 9t
To Find
the velocity and acceleration vector
Solution
We can start by expressing the position vector r in terms of the Cartesian coordinates x and y:
x = r cos(theta) = 2cos(t)
y = r sin(theta) = 2sin(t)
To find the velocity vector, we can take the time derivative of the position vector:
v = (dx/dt) i + (dy/dt) j
where i and j are the unit vectors in the x and y directions, respectively.
Taking the derivatives:
dx/dt = -2sin(t)
dy/dt = 2cos(t)
Substituting these back into the velocity vector equation:
v = (-2sin(t)) i + (2cos(t)) j
To find the acceleration vector, we can take the time derivative of the velocity vector:
a = (d^2x/dt^2) i + (d^2y/dt^2) j
Taking the derivatives:
d^2x/dt^2 = -2cos(t)
d^2y/dt^2 = -2sin(t)
Substituting these back into the acceleration vector equation:
a = (-2cos(t)) i + (-2sin(t)) j
So the velocity vector is v = (-2sin(t)) i + (2cos(t)) j, and the acceleration vector is a = (-2cos(t)) i + (-2sin(t)) j, both in terms of t.
https://brainly.com/question/31467231
Consider the following polynomial
Step-by-step explanation:
Degree is 6
Leading coefficient is 5
Constant term is 8
If m2 = 9x + 7 and m3 = 5x + 5, what is m1?
Answer:
B
Step-by-step explanation:
∠ 2 and ∠ 3 are a linear pair and sum to 180°
∠ 2 + ∠ 3 = 180 , that is
9x + 7 + 5x + 5 = 180
14x + 12 = 180 ( subtract 12 from both sides )
14x = 168 ( divide both sides by 14 )
x = 12
Then
∠ 3 = 5x + 5 = 5(12) + 5 = 60 + 5 = 65°
∠ 3 and ∠ 1 are vertically opposite angles and are congruent , so
∠ 1 = 65°
A survey was conducted about real estate prices. Data collected is 148216, 201866, 352428, 481312, 560473, 689607, 747147, 841952,966673,1077650,1116189,1264235,1395465. What is the third quartile price? QUESTION 3 A survey was conducted about real estate prices. Data collected is 202703, 363137, 776302, 953021, 145393, 998899, 359679. 178515,312441,117271,669212,375390,109350. What is the Standard Deviation of the price? QUESTON 4 A survey was conducted about real estate prices. Data collected is 100021, 259112, 317692, 487684, 508883, 699112, 758500, 841302,945586,1047047,1135536,1235570,1315132. What is the 85 th percentile price?
To find the third quartile price, we need to arrange the data in ascending order. The third quartile represents the value below which 75% of the data falls. The 85th percentile price is approximately 1135536.
Arranged data: 148216, 201866, 352428, 481312, 560473, 689607, 747147, 841952, 966673, 1077650, 1116189, 1264235, 1395465
Since there are 13 data points, the third quartile is located at the position (13 + 1) * (3/4) = 10th position.
The third quartile price is the value at the 10th position, which is 1077650.
Therefore, the third quartile price is 1077650.
Using a calculator or software, the standard deviation of the price is approximately 318,986.
Therefore, the standard deviation of the price is approximately 318,986.
To find the 85th percentile price, we need to arrange the data in ascending order. The 85th percentile represents the value below which 85% of the data falls.
Arranged data: 100021, 259112, 317692, 487684, 508883, 699112, 758500, 841302, 945586, 1047047, 1135536, 1235570, 1315132
Since there are 13 data points, the 85th percentile is located at the position (13 + 1) * (85/100) = 11th position.
The 85th percentile price is the value at the 11th position, which is 1135536.
Therefore, the 85th percentile price is 1135536.
Learn more about ascending order here:
brainly.com/question/23419562
#SPJ11
5x - (8x -17) = -10
I have to figure out what x is and it can't be a decimal number please help.
40 POINTS FOR WHOEVER HELPS
Answer:
x=9
Step-by-step explanation:
isolate the variable by dividing each side by factors that dont contain the variables.
can i get the crown?
Answer:
x = 9
Step-by-step explanation:
5x - (8x -17) = -10
Rewrite the equation and take away the brackets:
5x - 8x + 17 = -10
5x - 8x = -10 - 17
5x - 8x = -27
-3x = -27
x = -27 ÷ -3
x = 9
I hope this helps!
If you give me 70 coins I will have three times as much money as you, but if I give you 70 coins, then you will have five times as much as me. How many coins do we each have?
Answer:
I have 110 coins, you have 130 coinsStep-by-step explanation:
I have x coins and you have y coins.
According to question we set the following equations.
If you give me 70 coins I will have three times as much money as you:
x + 70 = 3(y - 70) ⇒ x + 70 = 3y - 210 ⇒ x = 3y - 280If I give you 70 coins, then you will have five times as much as me:
y + 70 = 5(x - 70) ⇒ y + 70 = 5x - 350 ⇒ y = 5x - 420Solve by substitution:
y = 5(3y - 280) - 420y = 15y - 1400 - 42015y - y = 182014y = 1820y = 1820/14y = 130Find the value of x:
x = 3*130 - 280x = 390 - 280x = 110Can’t figure out how to solve this
Solve a = v/t for v
All work must be shown
Answer:
v = a × t
Step-by-step explanation:
a = v/t
Isolate v. Move t.
a × t = v/t × t
Simplify.
a × t = v
(Switch if needed)
v = a × t
Adam has 312pounds of ground beef.
How many burgers can he make if each burger requires 14 pound?
PLS HELP NOWWWW
Answer:
14 or 0.14
Step-by-step explanation:
3 1/2 ÷ 1/4
1/4 = 25
3 1/2 ÷ 25 = 0.14 or 14
This is correct answer can you mark me brainliest
The function f is defined on the closed interval [0,8]. The graph of its derivative f' is shown above.
The point (3,5) is on the graph of y=f(x). An equation of the line tangent to the graph of f at (3,5) is
a) y=2
b) y-5=2(x-3)
the equation of the line tangent to the graph of f at (3, 5) is given by option b) y - 5 = 2(x - 3).
To find the equation of the line tangent to the graph of f at the point (3, 5), we need to determine the slope of the tangent line.
Since the graph of f' represents the derivative of f, the slope of the tangent line at any point on the graph of f will be equal to the value of f' at that point.
Looking at the graph, we can see that the slope of the tangent line at x = 3 is 2. Therefore, the equation of the tangent line can be written in point-slope form as:
y - 5 = 2(x - 3)
Simplifying this equation, we get:
y - 5 = 2x - 6
Finally, rearranging the equation, we have:
y = 2x - 1
Therefore, the equation of the line tangent to the graph of f at (3, 5) is given by option b) y - 5 = 2(x - 3).
To learn more about tangent click here:brainly.com/question/10053881
#SPJ11
I need the help pls
Answer:
A,C,B
is the answer
Steven pay 10% tax on a purchase of $40 to what's the dollar amount of the tax and total dollar amount Steven paid on the number line
Answer:
$4, and $44
Step-by-step explanation:
10% of 40 = $4
40+4=$44
just mark 4 , 44 on number line
Answer: $44.00
Step-by-step explanation: The dollar amount of the taxes are $4.00 and the total amount he paid was$44.00
A rectangular pool has length of 6 m and 3 m width. The pool is surrounded by a uniform edge with width x m. Given the area of the pool side is 32 m². Form a quadratic function and equation for the situation.
Answer:
you can solve this problem with the help of this example :
A rectangular pool 20 meters wide and 60 meters long is surrounded by a walkway of uniform width. If the total area of the walkway is 516 square meters, how wide, in meters, is the walkway?
Sol:
A rectangular pool has length l=60m & breadth b=20m.
It has a surrounding walkway of area =516m
2
.
Area (pool) =60×20=1200m
2
Let us take the width of the walkway =
2
X
.
∴ The length as well as the breadth of the area (pool+walkway) will be increased by X
So the length =l of the area (pool+walkway) =(60+X)m and the breadth =b=(20+X)m
∴ Area (pool+walkway) =l×b=[(60+X)×(20+X)]m
2
.
∴ Area (walkway) = Area (pool+walkway) - Area (pool)
=(60+X)×(20+X)−1200=516m
2
....(given)
⇒X
2
+80X−516=0
⇒X=−86 or X=6.
We reject the negative value as X is a length.
So X=6m.
Ans- The width of the walkway =
2
X
=3m.
how do i find s??? I'm legit crying help.
Applying the exterior angle theorem, the value of s in the triangle is: 74.
How to Apply the Exterior Angle Theorem?In the image shown above, the angles, s - 44° and s° are interior opposite angles to the exterior angle of the triangle that is given as s + 30°.
Based on the exterior angle theorem, the sum of s - 44° and s° is equal to s + 30°.
Therefore:
s - 44 + s = s + 30 [exterior angle theorem]
Combine like terms
2s - 44 = s + 30
2s - 44 - s = s + 30 - s [subtraction property of equality]
s - 44 = 30
s - 44 + 44 = 30 + 44 [addition property of equality]
s = 74
Therefore, applying the exterior angle theorem, the value of s in the triangle is: 74.
Learn more about the exterior angle theorem on:
https://brainly.com/question/11356657
#SPJ1
Following are the factor ratings (100 points is the maximum) of three possible locations for a clothing store.
Location
Factor
Weight A B C
Convenience of access .10 92 70 72
Parking facility .15 91 73 75
Frontage .19 96 89 74
Shopper traffic .31 79 95 80
Operating cost .10 70 95 92
Neighbourhood .15 69 81 96
1.00
a. Determine the composite score for each location. (Round intermediate calculations to 2 decimal places. Round the final answers to 2 decimal places.)
A B C
Composite score
b. Using part a results, determine which location should be chosen for the clothing store.
multiple choice
Location B
Location C
Location A
a. The composite scores for each location are as follows: Location A: 84.34, Location B: 81.05, Location C: 82.63 (b) Based on the composite scores, Location A should be chosen for the clothing store.
To determine the composite score for each location, we need to calculate the weighted sum of the factor ratings.
a. The composite score for each location is calculated as follows:
Location A:
Composite score = (Convenience of access * Weight) + (Parking facility * Weight) + (Frontage * Weight) + (Shopper traffic * Weight) + (Operating cost * Weight) + (Neighbourhood * Weight)
Composite score = (0.10 * 92) + (0.15 * 91) + (0.19 * 96) + (0.31 * 79) + (0.10 * 70) + (0.15 * 69)
Composite score = 84.34
Location B:
Composite score = (0.10 * 70) + (0.15 * 73) + (0.19 * 89) + (0.31 * 95) + (0.10 * 95) + (0.15 * 81)
Composite score = 81.05
Location C:
Composite score = (0.10 * 72) + (0.15 * 75) + (0.19 * 74) + (0.31 * 80) + (0.10 * 92) + (0.15 * 96)
Composite score = 82.63
b. Based on the composite scores, we can see that Location A has the highest score of 84.34, followed by Location C with a score of 82.63, and Location B with a score of 81.05. Therefore, Location A should be chosen for the clothing store.
After calculating the composite scores for each location based on the factor ratings and weights, it is determined that Location A has the highest composite score and should be chosen for the clothing store.
To know more about composite, visit;
https://brainly.com/question/33300951
#SPJ11
\(3^{2} - 5x + 8 =0\) is in standard form
A. true
B. Fasle
Answer:
true
Step-by-step explanation:
I 100% looked it up
PLS HELP FAST IM BEING TIMED!!!
An airplane can seat up to 175 passengers. The airline has already sold 87 tickets for a flight on the airplane. Which graph represents the solution to the inequality that finds the number of tickets the airline can still sell?
A number line going from 80 to 91. A solid circle is at 88. Everything to the left of the circle is shaded.
A number line going from 80 to 91. An open circle is at 88. Everything to the left of the circle is shaded.
A number line going from 80 to 91. An open circle is at 87. Everything to the right of the circle is shaded.
A number line going from 80 to 91. A closed circle is at 87. Everything to the right of the circle is shaded.
Answer:
C
Step-by-step explanation:
hope it helps
Answer:
The answer is C
Step-by-step explanation:
I keep seeing people put c so i am pretty sure that right
Define Torsion, pure torsion and it's assumptions, torsion
equation and limitation of its formula?
Torsion refers to the twisting of a structural member due to the application of torque. Pure torsion occurs when a structural member is subjected to torsional loading only. It is analyzed using assumptions such as linear elasticity, circular cross-sections, and small deformations. The torsion equation relates the applied torque, the polar moment of inertia, and the twist angle of the member. However, this formula has limitations in cases of non-circular cross-sections, material non-linearity, and large deformations.
Torsion is the deformation that occurs in a structural member when torque is applied, causing it to twist. In pure torsion, the member experiences torsional loading without any other external forces or moments acting on it. This idealized scenario allows for simplified analysis and calculations. The assumptions made in pure torsion analysis include linear elasticity, which assumes the material behaves elastically, circular cross-sections, which simplifies the geometry, and small deformations, where the twist angle remains small enough for linear relationships to hold.
To analyze pure torsion, engineers use the torsion equation, also known as the Saint-Venant's torsion equation. This equation relates the applied torque (T), the polar moment of inertia (J), and the twist angle (θ) of the member. The torsion equation is given as T = G * J * (dθ/dr), where G is the shear modulus of elasticity, J is the polar moment of inertia of the cross-section, and (dθ/dr) represents the rate of twist along the length of the member.
However, the torsion equation has its limitations. It assumes circular cross-sections, which may not accurately represent the geometry of some structural members. Non-circular cross-sections require more complex calculations using numerical methods or specialized formulas. Additionally, the torsion equation assumes linear elasticity, disregarding material non-linearity, such as plastic deformation. It also assumes small deformations, neglecting cases where the twist angle becomes significant, requiring the consideration of non-linear relationships. Therefore, in practical applications involving non-circular cross-sections, material non-linearity, or large deformations, more advanced analysis techniques and formulas must be employed.
To learn more about torsion click here: brainly.com/question/30612977
#SPJ11
Does this graph show a function? Explain how you know.
O A. Yes; the graph passes the vertical line test.
O B. Yes, there are no y values that have more than one xvalue.
O C. No; there are y-values that have more than one xvalue.
O D. No, the graph fails the vertical line test.
Answer:
A
Step-by-step explanation:
Drag the tiles to the correct boxes. Not all tiles will be used
Consider this geometric sequence.
(9, 3, 1, ⅕, . . . , n)
Identify the explicit, exponential, and recursive functions that define this sequence.
The explicit, exponential, and recursive functions that define this geometric sequence include the following:
exponential ⇒ \(f(n)=9(\frac{1}{3} )^n\)
explicit ⇒ \(f(n)=9(\frac{1}{3} )^{n-1}\)
recursive ⇒ \(f(1)=9\\f(n)=\frac{1}{3} f(n-1), for \;n\ge2\)
How to calculate the nth term of a geometric sequence?In Mathematics and Geometry, the nth term of a geometric sequence can be calculated by using this mathematical equation (formula):
aₙ = a₁rⁿ⁻¹
Where:
aₙ represents the nth term of a geometric sequence.r represents the common ratio.a₁ represents the first term of a geometric sequence.Next, we would determine the common ratio as follows;
Common ratio, r = a₂/a₁
Common ratio, r = 3/9
Common ratio, r = 1/3
For the exponential function, we have:
\(f(n) = a_1(r)^n\\\\f(n)=9(\frac{1}{3} )^n\)
For the explicit function, we have:
aₙ = a₁rⁿ⁻¹
\(f(n)=9(\frac{1}{3} )^{n-1}\)
Now, we can write the recursive function as follows;
f(1) = 9
f(n) = ⅓f(n - 1), for n ≥ 2.
Read more on geometric sequence here: brainly.com/question/16423479
#SPJ1
1)bowl a contains 2 red chips; bowl b contains two white chips; and bowl c contains 1 red chip and 1 white chip. a bowl is selected at random, and one chip is taken at random from that bowl. what is the probability of selecting a white chip? if the selected chip is white, what is the probability that the other chip in the bowl is red?
Probability that selected chip is white: 1/2
Probability that the other chip in the bowl is red given if the selected chip is white: 1/3
Let A be the event that bowl A is randomly selected; let B be the event that bowl B is randomly selected; and let C be the event that bowl C is randomly selected. All these three bowls are equally likely to be selected:
P(A) = P(B) = P(C) = 1/3
The probability of selecting a white chip from a bowl depends on from which bowl the chip is selected.
Let W be the event that a white chip is randomly selected.
Attached is the picture solution.
You can learn more about probability from:
https://brainly.com/question/11234923
#SPJ4
Three hundred students were surveyed about whether they are right- or left-handed.
Enter the correct answers in the boxes to complete the two-way relative frequency table.
Show Hints
7th graders
8th graders
TOTAL
Right-handed Left-handed TOTAL
0.89
0
0.05
0.49
1.00
The values of the spaces in columns are x,a,b,c,y which is equal to 0.46, 0.43, 0.06, 0.11, 0.51 respectively
How to find the values?Remember that the probability of the certainty of an event is equal to 1
Lethe spaces be labelled according to the table:
right hand left hand total
7th grade x 0.05 y
8th grade a b 0.49
Total 0.89 c 1.00
To find the value of y:
y + 0.49 = 1.00
Making y the subject of the relation
y = 1.00-0.49
y = 0.51
To find the value of x:
x + 0.05 = 0.51
Making x the subject of the formula
x = 0.51-0.05
x= 0.46
To find the value of a:
x+a = 0.89
0.46+a = 0.89
Making a the subject we have
a = 0.89-0.46
a = 0.43
To find the value of b:
0.43+b = 0.49
Making b the subject of the relation
b= 0.49-0.43
b= 0.06
To find the value of c:
0.89+c = 1.00
Collecting like terms
c = 1.00-0.89
c= 0.11
Learn more about probabilities on https://brainly.com/question/11234923
#SPJ1
Helppplllll vxjjkdmms I’ll give u a star
i think it is a function.
Answer:
Function
Step-by-step explanation:
if I'm wrong beat me up
Liz is using the distributive property to evaluate the expression 27 (36) by using friendlier numbers. Her work is shown below.
Liz’s Work
27(36)
Step 1
27 (3 + 12)
Step 2
27 (3) + 27 (12)
Step 3
81 + 324
Step 4
405
What was the first error that Liz made?
Answer:
the first error she made was that she used the wrong numbers to multiply by
Step-by-step explanation:
Answer:
Error: she replaced 36 with the unequaled value of 3+12.
Step-by-step explanation:
The first error made is 36 cannot be substituted with 3+12 because 36 doesn't equal 3+12. She might have been thinking 3(12)=36. She could have done 10+10+10+5+1 for 36 and did the following:
27(10+10+10+5+1)
270+270+270+135+27
(270+270)+(270+135)+27
(540)+(405)+27
972
The hexagonal prism has a base area of 38.8 units^2 and a volume of 504.4 units^3. Find it’s height.
Answer:
13 units
Step-by-step explanation:
V = B • h
504.4 = 38.8 h
504.4 / 38.8 ( divide to isolate the variable)
Height = 13 units
Polygons in the coordinate
In order to know if a triangle is a right triangle on a coordinate plane, you can find the lengths of all three sides of the triangle using the distance formula and apply the Pythagorean theorem.
How to know if it's a triangleFind the lengths of the three sides of the triangle using the distance formula.
Once you have the lengths of the sides, check if any of the three sides satisfy the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. In other words, if a² + b² = c², where c is the longest side, then the triangle is a right triangle.
If one of the sides satisfies the Pythagorean theorem, then the triangle is a right triangle.
Learn more about triangle on
https://brainly.com/question/17335144
#SPJ1