Mike wants to conduct a survey to find how much time the students of his school spent watching television. Which of the following is an appropriate statistical question for this survey?
Answers
Answer:
c
Step-by-step explanation:
Answer:
How many hours a week do you watch televison?
Step-by-step explanation:
In order for Mike to organize a survey about this particular topic, it's important that he asks concise questions that provide him with generalized data about multiple days of the week. Because of this, he wouldn't want to ask any questions that solely focus on specific days, so we can use process of elimination to get rid of answer choices C and D. Both of these options are too specific, and only ask about 1 or 2 days instead of a larger period of time. Using the same logic, we can get rid of option A. Option A is also too specific, but for a different reason. This question is only asking about students who watch televison for an hour everyday. Remember, for good surveys, more results provide a better sample of data. So it's important that the questions asked are coherent, but also don't limit the amount of data received either.
Related Questions
Congruent yes or no
Congruent? _______
If so, what property? ________
Answers
Answer: No
Step-by-step explanation:
If we rotate them so they are both facing the same direction, the congruency between sides and angles do not make the two triangles congruent as a whole.
See attached for the pictures I drew of the triangles rotated. They are not to scale, but I kept the markings on.
NO LINKS!! Please help me with this problem. Part 2.
Answers
Answer:
g(x) = 10(x +1)² +5
Step-by-step explanation:
When a point is translated 3 units down, its y-value is 3 less than it was. The graph of f(x) is translated 3 units down by subtracting 3 from the value of f(x).
g(x) = f(x) -3 . . . . . translates f(x) 3 units down
__
For f(x) = 10(x +1)² +8, we want ...
g(x) = f(x) -3 = (10(x +1)² +8) -3
g(x) = 10(x +1)² +5
Translation of 3units down means change in y axis
y is decreased by 3
Hence new equation
g(x)=10(x+1)²+8-3g(x)=10(x+1)²+5Which statement best describes the streams on either side of the Great Divide?
They feed different water sheds.
They channel rain to the Pacific Ocean.
They flow into the same drainage basin.
They have some of the same large rivers.
Answers
Explanation:
The Great Divide commonly refers to the continental divide of North America. The watersheds of the Pacific Ocean are separated from the Atlantic Ocean by the Great Divide. Green River watershed is located to the west of the endorheic basin, and it is drained to the Gulf of California/Pacific Ocean.
The water flowing to the Pacific Ocean is separated from the water flowing to the Southern and Indian Oceans. Various
water sheds can be efficiently fed through Great Divide.
The water is gathered and depleted into water bodies like waterway, lake or stream correct answer is option C i.e. They flow into the same drainage basin.
What is the purpose of drainage i the Great Divide??The land region which gathers water is likewise called a drainage bowl or catchment region. It monitors water, advances the proceeded with stream of the waterway. It helps in the amassing of groundwater, empowers solid soil and furthermore gives territory to untamed life and plants.
Here, we have,
A drainage bowl addresses the land region which is contributing water to a stream. The water commitment can be straightforwardly toward a solitary stream, or toward a few streams that stream into a bigger, focal stream.
Fundamentally, the drainage bowl has a stream going through it, in its least part. The land is getting on rise to the side structure the stream, and the edges of the slopes or mountains are making up its limits.
The water is gathered and depleted into water bodies like waterway, lake or stream correct answer is option C i.e. They flow into the same drainage basin.
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Write out the sample space for the given experiment. Use the following letters to indicate each choice: M for mushrooms, A for asparagus,S for Shrimp, B for Bacon, F for French, and V for Vinegrette. When deciding what you want to put into a salad for dinner at a restaurant, you will choose one of the following extra toppings: mushrooms, asparagus. Also you will addone of the following meats: Shrimp, bacon. Lastly, you will decide on one of the following dressings: French, vinegrette.
Answers
Answer: {(MBV), (MBH) , (MEV) , (MEH) , (OBV), (OBH) , (OEV) , (OEH)}
Step-by-step explanation:
Sample space is a set that contains all the possible outcomes for an event.For salad:
Choices for extra toppings (mushrooms, olives) =2
Choices for meats (bacon, eggs) =2
Choices for dressings (vinaigrette, honey mustard.)= 2
By Fundamental counting principal .
The number of different salads can be made= (Choices for extra toppings) x (Choices for meats ) x (Choices for dressings)
= 2 x 2 x 2 = 8
All the possible outcomes = (MBV), (MBH) , (MEV) , (MEH) , (OBV), (OBH) , (OEV) , (OEH)
Required Sample space would be : {(MBV), (MBH) , (MEV) , (MEH) , (OBV), (OBH) , (OEV) , (OEH)}
What is the difference between the longest and shortest distances the gliders flew?
Answers
What of the following functions is graphed below?
Answers
Answer:
Your answer is D. y = |x + 3| - 4
Step-by-step explanation:
Looking at the graph there seems to be only translations shift. There is no vertical stretch/shrink or Horizontal stretch/shrink
Absolute formula: y = |x - h| + k
Your (h,k) = (-3, -4) plug them into the absolute formula.
y = |x - (-3)| + (-4)
y = |x + 3| - 4
A company made a bar graph showing the amount of sales for each month in thousands of dollars. Which of the following is closest to the mean amount of sales for the four-month period?
A.
$5,250
B.
$6,250
C.
$6,375
D.
$5,750
Answers
Answer:
The answer is A.
In May, there were about 5,500 dollars in sales.
In June, there were 8,000 dollars in sales.
In July, there were about 2,500 dollars in sales.
In August, there were 6,000 dollars in sales.
To find the range, subtract the smallest amount from the largest amount.
$8,000 - $2,500 = $5,500
Therefore, the range is $5,500.
Answer: 6,375
Step-by-step explanation:
Isolate w for the literal equation v = lwh
Answers
[tex]\Large\textsf{\textbf{Answer\::}}[/tex]
view explanation please !
[tex]\Large{\textsf{\textbf{Calculations\::}}[/tex]
What are we asked to do ?
We are asked to isolate w (get w by itself) .
To do that , divide by lh on both sides :
[tex]\displaystyle\frac{V}{lh} = w[/tex]
So the right formula is :
[tex]\bigcirc\!\!\!\!\!\!\bigstar[/tex] [tex]\displaystyle\frac{V}{lh} =w[/tex]
[tex]\footnotesize\text{hope\:helpful~}[/tex]
Answer:
w = v/lh
Step-by-step explanation:
v = lwh
Divide both sides by lh
w = v/lh
The sum of two numbers is negative thirty-two. One number is two less than the other.
Call the numbers m and n
Answers
Answer:
-17 + -15 = -32
Step-by-step explanation:
-15 is two less than -17
-17 can be m and -15 can be n and vice versa.
*REMEMBER WHEN ADDING NEGATIVE NUMBERS, ADD THEM BUT MAKE SURE THE OUTCOME IS NEGATIVE*
In June Gemma paid £68 for her electricity.
In July she will pay 5% more for her electricity.
Work out how much Gemma will pay for her electricity in July.
Answers
Total amount paid in july: $68 + $3.40 + 71.40
Step-by-step explanation:
given: June= $68 for electricty
A 12 inch line segment is divided into two parts. Which of the following lengths result in a ratio closest to the golden ratio, 1+√5/2 ?
Answers
The lengths of segment which is the part of a 12 inch line segment closest to the golden ratio, (1+√5)/2 are 7.4166 inch and 4.5834 inch.
What is the value of golden ratio?The value of golden ratio is equal to 1.618. It can also be given as (1+√5)/2.
A 12 inch line segment is divided into the two parts in a particular ratio. Let suppose the line segment is AC which is divided into AB and BC parts. Thus,
AB+BC=AC
AB+BC=12 ....1
The ratio of both segment is equal to golden ratio. Thus
[tex]\dfrac{AB}{BC}=\dfrac{AC}{AB}=\dfrac{1+\sqrt{5}}{2}\\\dfrac{12}{AB}=1.618\\AB=7.4166 \rm\; in[/tex]
Put this value in equation one as,
AB+7.4166=12
AB=4.5834
Hence, the lengths of segment which is the part of a 12 inch line segment closest to the golden ratio, (1+√5)/2 are 7.4166 inch and 4.5834 inch.
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100yards equals how many feet
Answers
Answer: 300 ft
Step-by-step explanation:
100*3 = 300
How: 100*3
Solve 2x+4<6
I have no clue
Answers
Why did you delete my answer
PLEASE HELP!!!
i under stand how bioconditional statements work but i don’t understand what this means. Please help me!!!
Answers
The front of the stage, side C, is 50 feet long. A 40-foot rope runs along the side of square B. A 30-foot rope runs along the side of square A. Is the roped off area, triangle ABC, a right triangle? Explain. (2 points)
e) The diagonal of square A, marked off by the red stars, is where the concession stand is located. A local high school band is performing at the outdoor theater on a summer evening. The band has a school banner that is 40-feet long, and band members would like to hang it across the concession stand to let people know they are performing. Estimate the length of the concession stand to determine if the school banner can fit across the length of the concession stand. Show your work and explain your reasoning. (2 points)
Answers
Answer:
ΔABC is a right triangle
length of the concession stand = 42.4 ft (nearest tenth)
Step-by-step explanation:
Given:
Side length of square A = 30 ftSide length of square B = 40 ftSide length of square C = 50 ftWe can use Pythagoras' Theorem to prove if ΔABC is a right triangle.
Pythagoras' Theorem: a² + b² = c² (where a and b are the legs, and c is the hypotenuse of a right triangle)
Given:
a = side length of square A = 30b = side length of square B = 40c = side length of square C = 50⇒ a² + b² = c²
⇒ 30² + 40² = 50²
⇒ 900 + 1600 = 2500
⇒ 2500 = 2500
Therefore, ΔABC is a right triangle
To find the diagonal of square A, use Pythagoras' Theorem:
Given:
a = side length of square A = 30b = side length of square A = 30c = diagonal of square A⇒ a² + b² = c²
⇒ 30² + 30² = c²
⇒ 900 + 900 = c²
⇒ c² = 1800
⇒ c = √(1800)
⇒ c = 42.42640687
Therefore, the length of the concession stand (diagonal of square A) is 42.4 ft (nearest tenth)
Help please:
Rewrite the problem in terms of some using the double-angle formula.
Answers
[tex]sin(2\theta)=2sin(\theta)cos(\theta) \\\\[-0.35em] ~\dotfill\\\\ sin(x)cos(x)=\cfrac{\sqrt{3}}{4}\implies \stackrel{\textit{multiplying both sides by 2}}{2sin(x)cos(x)=2\left( \cfrac{\sqrt{3}}{4} \right)}\implies sin(2x)=\cfrac{\sqrt{3}}{2}[/tex]
If s(x) = 2x2 + 3x - 4, and t(x) = x + 4 then s(x) · t(x) =
A) 2x3 + 11x2 + 8x - 16
B) 2x3 + 5x2 + 16x - 16
C) 3x3 + 7x2 + 8x + 16
D) 3x3 - 11x2 + 16x + 16
Answers
Answer:
A) 2x3 + 11x2 + 8x - 16.
Step-by-step explanation:
s(x).t(x) = (x + 4)( 2x2 + 3x - 4)
= x(2x2 + 3x - 4) + 4( 2x2 + 3x - 4)
= 2x3 + 3x2 - 4x + 8x2 + 12x - 16
= 2x3 + 11x2 + 8x - 16
It is said that once a Chinese emperor decided to divide a number of horses among his generals such that
(a) if they are divided equally among 3 of his generals, 2 horses will remain;
(b) if they are divided equally among 5 of his generals, 1 horse will remain;
(c) and if they are divided equally among 7 of his generals, 6 horses will remain.
I. Find the smallest number of horses that satisfies this condition.
II. Write an explicit rule for each of part (a), (b) and (c).
III. Write an explicit rule for the number of horses that can be divided in such a way.
IV. Write a recursive rule for the explicit rule found in part III.
Answers
Using the three conditions, the smallest number of horses that can be shared among the generals is 41
The smallest number of horsesThe conditions are given as:
A remainder of 2, if divided among 3 generalsA remainder of 1, if divided among 5 generalsA remainder of 6, if divided among 7 generalsThe numbers that can divide 5 and leave a remainder of 1 are:
11, 16, 21, 26, 31, 36, 41, 56, 61, 66, 71......
Of all these numbers, the smallest number that satisfy the three conditions is: 41
i.e.
41/3 = 13 R 2
41/5 = 8 R 1
41/7 = 5 R 6
Hence, the smallest number of horses is 41
The explicit rule for each conditionLet the number of horses a general gets be x.
The explicit rule for each condition can be represented as:
Condition (a): Total = 3x + 2Condition (b): Total = 5x + 1Condition (c): Total = 7x + 6The explicit and the recursive ruleUsing the condition (b), we have:
Total = 5x + 1
Rewrite as a function
f(x) = 5x + 1
When x = 0, we have:
f(0) = 1
For other values of x, we have:
f(1) = 6
f(2) = 11
f(3) = 16
Rewrite as:
f(0) = 1
f(1) = 5 + 1 = 5 +f(0)
f(2) = 5 + 6 = 5 + f(1)
f(3) = 5 + 11 = 5 + f(2)
Express 2 as 3 - 1
f(3) = 5 + f(3 - 1)
Express 3 as x
f(x) = 5 + f(x - 1)
Hence, the recursive function is f(x) = 5 + f(x - 1) where f(0) = 1
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Choose the best answer for the question below
*
5 points
Captionless Image
A
B
C
D
Answers
Answer:
The answer would be D.
Step-by-step explanation:
Hope this Helps! Have a good day!
Answer:
D is the answer
Step-by-step explanation:
is the answer to the question.
To understand these questions, first look at the way the answers are written out.
Alia questions three students from her class, that might be an answer, but she didn't randomly pick them.
Miles randomly surveys a group of customers at a coffee shop, that might be one, but he might have surveyed a 25 year old instead of a 24 year old, so thats not one.
Carson interviews students working part-time to gather data, he didn't select random students, he interviewed all of them, so that is not a valid option.
Lea speaks with the managers at half of the town's 10 supermarkets, which stock similar items, to find out which breakfast cereal is most popular among the town's residents, that one is not stating that she interviewed, but she interviewed half of the 10, which is five, which can be selected randomly.
So the correct answer is D.
The average of the test scores of a
group of x students is 76 and the average of the test scores of a group of y students is 90. When the scores of the two groups of students are combined, the average test score is 85. What is the value of x/y
Answers
Answer:
x/y = 5/9
Step-by-step explanation:
sum = count * mean
for the group of x students:
sum = x * 76
let's say this sum is a
a = 76x
for the group of y students:
sum = y * 90
let's say this sum is b
b = 90y
total sum = total count * total mean
total sum = total sum from both groups = a + b
total count = total count from both groups = x + y
a + b = (x+y) * 85
expand
a + b = 85x + 85y
a = 76x
b = 90y
replace a with 76x and b with 90y in the first equation. this limits the equation to x and y, which we want because we want to find x/y
76x + 90y = 85x + 85y
subtract 76x and 85y from both sides to limit the amount of numbers
5y = 9x
divide both sides by 9 to isolate the x
(5/9)y = x
divide both sides by y to get x/y
x/y = 5/9
The linear equation y = 30x describes how far from home Traci is as she drives from Dallas to Anchorage. Let x represent the number of hours and y represent the number of miles. How far from home is Traci in 12 hours? Is the equation linear, or not?
Answers
Traci will be 360 miles in 12 hours if the linear equation y = 30x describes how far from home Traci is as she drives from Dallas to Anchorage and the equation of the graph is linear.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have a linear equation:
y = 30x
Here, x represent the number of hours and y represent the number of miles.
When x = 12 hours then
y = 30(12) = 360 miles
If draw the graph the equation y = 30x, it will be a linear equation.
(refer attached picture)
Thus, Traci will be 360 miles in 12 hours if the linear equation y = 30x describes how far from home Traci is as she drives from Dallas to Anchorage and the equation of the graph is linear.
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17) Which property is represented below?
6. (3 + 8) = 6:3+ 6.8
A. Commutative property of multiplication
O B. Distributive property
O C. Zero product property
D. Additive identity property
Answers
Answer:
Distributive Property
Step-by-step explanation:
It looks like you are multiplying the 6 to both the 3 and 8.
What value is an irrational number
Answers
Answer: Choice A
Explanation:
The number [tex]\sqrt{8}[/tex] is irrational. We cannot write it as a ratio or fraction of two integers. This is because 8 isn't a perfect square.
Multiplying any irrational number with a rational one leads to an irrational product.
In short:
irrational*rational = irrational
Therefore, the perimeter [tex]4\sqrt{8}[/tex] is also irrational.
A survey of 100 high school students provided this
frequency table on how students get to school:
Drive to Take the
Grade
Walk
School bus
Sophomore 2
25
3
3
Junior
13
20
2
Senior
25
5
5
a
What is the probability that a randomly selected student
is a junior?
?
P(Junior)
=
Answers
Probability helps us to know the chances of an event occurring. The probability that a randomly selected student is a junior is 0.35.
What is Probability?Probability helps us to know the chances of an event occurring.
[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]
The probability that a randomly selected student is a junior will be,
P(Junior) = [(Number of Juniors)\(Number of total students)]
P(Junior) = 35/100 = 0.35
Hence, The probability that a randomly selected student is a junior is 0.35.
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please answer its due soon and ill make brainlist and rate 5 stars and like please answer correctly I really need it.
Answers
Answer:
The given quadratic has two solutions.
Step-by-step explanation:
The discriminant of a quadratic equation is [(b^2) - (4 * a * c)]
We're given the quadratic x^2 - 8x - 84 = 0
We can find a, b, and c by analyzing the quadratic.
So,
a = 1 because x^2 has no coeffiecient
b = -8 ( coefficient of 8 * the - )
c = -84 the raw y-intercept value of this function
Now we can plug these numbers into the discriminant expression:
(-8)^2 - ( 4 * 1 * -84 ) =
64 - ( - 336 ) =
64 + 336 =
400
Now that we know the value of the discriminant, we have to anazlyze it.
If the discriminant of a quadratic is positive, the quadratic has 2 solutions.
If the discriminant is negative, the quadratic has no solutions.
If the discriminant is equal to zero, the quadratic only has 1 solution.
In conclusion, because the discriminant = 400, and 400 > 0, the given quadratic equation has two solutions.
Steps:
Factor the expression.
Apply the AC Method
Look at the coefficients, A=1,B=-8,C=-84
Find factors of AC.
{1,2,3,4,6,7,12,14,21,28,42,84}
Find pairs of the above factors, which, when multiplied equal 84.
{1*84,2*42,3*28,4*21,6*14,7*12}
Which pairs of these factors have a difference of B = -8?
6-14=-8
Split the middle term to use above pair.
x^2+(6×-14x)-84
Factor x out of the first pair.
x*(x+6)+(-14x-84)
Factor-14 out of the second pair.
x*(x+6)-14*(x+6)
Group the common factor.
(x-14)*(x+6)
Set 1 st factor x-14 to 0 to solve.
x-14=0
Add 14 to both sides
x-14+14=0+14
Simplify
x=14
Set 2nd factor x+6 to 0 to solve.
x+6=0
Subtract 6 from both sides
x*6-6=0-6
Simplify
x=-6
Solution:
x=(-6,14)
help find the area pls
Answers
Answer:
181.46 = A
Step-by-step explanation:
pi X r^2 is the area of a circle
the diameter is already given so you can skip the radius an jump straight into pi X d diameter = (r^2) giving you area pi X diameter
Solve |7x +42| = 14x. Identify the solution and an extraneous solution.
A. Solution: x = -2;
extraneous solution: x = 6
B. Solution: x = 6;
extraneous solution: a = -6
C. Solution: x = 6;
extraneous solution: x = -2
D. Solution: x = = 2;
extraneous solution: a = -6
Answers
First Case
[tex]|7x+42|=14x\\\\7x+42=14x\\\\42=7x\\\\6=x[/tex]
Second case
[tex]-|7x+42|=14x\\\\-7x-42=14x\\\\-42=21x\\\\-2=x[/tex]
Verify into first case
[tex]|7(6)+42|=14(6)\\\\|84|=84\\\\84=84\\\\LS=RS[/tex]
[tex]|7(-2)+42|=14(-2)\\\\28\neq -28\\\\LS\neq RS[/tex]
The solution is 6 and the extraneous solution is -2, which makes the answer C.
Which fraction correctly represents one whole? 1/7 3/7 7/7 and 7/1
WILL GIVE BRAINLIEST
Answers
Answer: 7/7
Step-by-step explanation:
7/7 simplifies to 1/1 which is equal to one. One is the same as one whole, so this is the answer to our question.
7/1 is also wholes but it is seven wholes, not one.
[tex]\displaystyle \frac{7}{7} =\frac{1}{1}=1[/tex]
Answer:
7/7
Step-by-step explanation:
If the numerator matches the denominator, then it is one whole.
Instructions: In the graph below determine how many real solutions the quadratic function has, and state them, if applicable. List solutions in order from left to right on the graph, or least to greatest. If the function has only one solution, type the solution in both of the boxes. If there are no real solutions type “none” in both boxes.
Answers
The quadratic function has two real solutions. The solutions to the function are x= -2 and x= 0
Solutions of a quadratic function
From the question, we are to determine the number of real solutions the quadratic function has.
NOTE:
If the graph of the quadratic function crosses the x-axis at two points then we have two solutions. If the graph touches the x-axis at one point then we have one solution.If the graph does not intersect with the x-axis then the equation has no real solution.From the given diagram, the graph of the quadratic function crosses the x-axis at two distinct points.
∴ The quadratic function has two real solutions
The solutions of a quadratic function are the points where the graph intersects with the x-axis.
In the given graph, the solutions to the function are x = -2 and x = 0
Hence, the quadratic function has two real solutions. The solutions to the function are x= -2 and x= 0.
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The rectangular prism shown below has a volume of 42 cubic meters what is the length of the prism
Answers
Answer:
3m
Step-by-step explanation:
From the diagram,
height = 7m
Width = 2m
Given that the volume of prism = 42 cubic meters = 42m³
Length of prism = ?
Inserting the values of the variables:
42 = l×2×7
42 = 14×l
l = 42/14
l = 3
The length of the prism = 3m