May u explain it alittle more im just confused
The formula for the sample mean, the margin of error, and the confidence interval.
Sample mean + margin of error = High-end confidence interval
Sample mean - margin of error = Low-end confidence interval
The sample mean is 31.
What is a mean?It is the average value of the set given.
It is calculated as:
Mean = Sum of all the values of the set given / Number of values in the set
We have,
Confidence interval = (27,35).
The margin of error = 4.
The formula for the sample mean, the margin of error, and the confidence interval.
Sample mean + margin of error = High-end confidence interval
Sample mean - margin of error = Low-end confidence interval
Now,
The sample mean = x
x + 4 = 35 ____(1)
x - 4 = 27 _____(2)
From (1) we get,
x = 35 - 4 = 31
From (2) we get,
x = 27 + 4
x = 31
Thus,
The sample mean is 31.
Learn more about mean here:
https://brainly.com/question/23263573
#SPJ2
water drains out of the bathtub at a rate of 5 gallons in 2 1/4 minutes. how much water drains out of the tub each minute?
Answer:
[tex]2~2/9[/tex] gallons per minute
Step-by-step explanation:
If it drains at a rate of [tex]x[/tex] gallons in [tex]y[/tex] minutes, the tub drains [tex]x/y[/tex] gallons in [tex]1[/tex] minute.
We can plug in for [tex]x[/tex] and [tex]y[/tex] for this equation!
The amount it drains in one minute is [tex]5/(2~1/4)=5/(9/4)=20/9=2~2/9[/tex].
So, the answer is [tex]\boxed{2~2/9}[/tex] gallons per minute.
The quantity of water that drains out of the tub each minute is 2.23 gallons.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that water drains out of the bathtub at a rate of 5 gallons in 2¹/₄ minutes.
2¹/₄ minuts = 5 gallons
1 minute = 5 / 2¹/₄
1 minute = 5 /2.25
1 minute = 2.23 gallons
Therefore, the quantity of water that drains out of the tub each minute is 2.23 gallons.
To know more about an expression follow
https://brainly.com/question/19053221
#SPJ2
Find the distance between -2 3/5 and -1 on a number line, Write the answer as a mixed number.
Answer:
-3 3/5
Step-by-step explanation:
-1 can also be written as -1/1
the lowest common denominator is 5 so re write the as 3/5 - 5/5
-3/5 - 5/5 = -8/5 = -1 3/5
-2 - 1 3/5 = -3 3/5
The distance between the numbers -2(³/₅) and -1 will be -3³/₅.
What is a number line?A number line in elementary mathematics is a representation of a graduated straight line that serves as an abstraction for real numbers, represented by the symbol R."
It is assumed that every point on a number line corresponds to a real number and that every real number corresponds to a point.
The distance will be calculated as;-
-1 can also be written as -1/1 the lowest common denominator is 5 so rewrite the as 3/5 - 5/5
-3/5 - 5/5 = -8/5 = -1³/₅
-2 - 1³/₅= -3³/₅
Therefore, the distance between the numbers -2(³/₅) and -1 will be -3³/₅.
To know more about number lines follow
https://brainly.com/question/24644930
#SPJ5
Write the equation in function form:
9x - 2y = 6
Line segment CD is shown on a coordinate grid:
A coordinate plane is shown. Line segment CD has endpoints 1 comma 2 and 1 comma negative 1.
The line segment is reflected about the y-axis to form C′D′. Which statement describes C′D′?
C′D′ is perpendicular to CD.
C′D′ is half the length of CD.
C′D′ is greater than twice the length of CD.
C′D′ and CD are equal in length.
Answer:
im pretty sure the answer would be C'D' and CD would be equal in length!
Step-by-step explanation:
because you are only reflecting it across the y-axis, no changes will be made to the line itself, only the location of the line :)
help pls do this whole thing ill give brainliest to whoever does It first. PLS GIVE BACK BEFORE 11:59 or it DOESENT count <3 bye
Answer:
can i have brainliest please i need one more<3
Step-by-step explanation:
Last question..so sry I keep asking!! TvT (Asap please!)
Answer:
(-4)+14
Step-by-step explanation:
Answer:
[tex]2)\:-2+\left(-22\right)[/tex]
[tex]3)\:\left(-4\right)+14[/tex]
Step-by-step explanation:
[tex]1)\: \left(-19\right)+9[/tex]
[tex]-19+9[/tex]
[tex]-10[/tex]
_______________
[tex]2)\:-2+\left(-22\right)[/tex]
[tex]-2-22[/tex]
[tex]-24[/tex]
_______________
[tex]3)\:\left(-4\right)+14[/tex]
[tex]-4+14[/tex]
[tex]10[/tex]
________________
[tex]4)\:4+\left(-14\right)[/tex]
[tex]4-14[/tex]
[tex]-10[/tex]
________________
Claudia tried to evaluate an expression step by step. Here is her work:
Answer:
d.
Step-by-step explanation: there is no mistake.
Dharma is running for student body representative. He has 100 "Vote for Dharma" buttons that he wants to distribute to students in grades 6, 7, and 8. He divides 100 by 3 to determine how many buttons to distribute to each grade. Explain what will happen when he performs the division. What is the quotient? Explain your answer.
Answer:
he will give out about 33 buttons to each grade level
Use mental math to find the difference.
532-116
Answer:
416
Step-by-step explanation:
Answer: 416
Step-by-step explanation:
Really easy 532-100 is 432. I now that 16 + 16 is 32 so minus 16 from 32 and you get 16 so your answer is 416.
(please help asap!)
What is the equation of this graphed line?
Enter your answer in slope-intercept form in the box.
Answer:
y = 2x + 2
Step-by-step explanation:
As we know, slope intercept is: y = mx + b
m is slope and b is the y-intercept.
Looking at this problem, we can see that the line crosses the y-axis at positive 2, so that is our y-intercept. For the slope, take a point like the y-intercept, and see how many squares is has to go up before it reaches the next square to the right. In this problem the line goes up 2 squares in the time it takes to go to the right 1. So the slope is y over x, or 2 over 1, or just 2.
Sam is saving digital copies of his movies on his computer. Right now, 247 movies take up 440,648 kilobytes. If each movie takes up the same amount of kilobytes, how many kilobytes does each movie take up?
Answer:
1,784 kilobytes.
Explanation:
440,648 ÷ 247 = 1,784
Answer:
Each movie would take up about 1,784 kilobytes.
Step-by-step explanation:
If you take 440,648 and divide it by 247 you get 1,784 kilobytes.
In ΔOPQ, \overline{OQ} OQ is extended through point Q to point R, \text{m}\angle PQR = (4x-10)^{\circ}m∠PQR=(4x−10) ∘ , \text{m}\angle OPQ = (x+9)^{\circ}m∠OPQ=(x+9) ∘ , and \text{m}\angle QOP = (x-5)^{\circ}m∠QOP=(x−5) ∘ . Find \text{m}\angle PQR.m∠PQR.
Answer:
In
In to point R, \text{m}\angle PQR = (7x-19)^{\circ}m∠PQR=(7x−19) ∘ , \text{m}\a
Step-by-step explanation:
The sum of two interior angles other than the adjacent angle of extended length will be equal to the external angle of extended length thus m∠PQR will be 18°.
What is an angle?An angle is a geometry in plane geometry that is created by 2 rays or lines that have an identical terminus.
The identical endpoint of the two rays—known as the vertex—is referenced as an angle's sides.
In any triangle,The sum of two interior angles other than the adjacent angle of extended length will be equal to the external angle of extended length.
In the given triangle below image,
m∠PQR = m∠OPQ + m∠POQ
4x - 10 = x + 9 + x - 5
4x - 10 = 2x + 4
2x = 14
x = 7
So,
m∠PQR = 4(7) - 10 = 18°
Hence "The measure of m∠PQR will be 18° for the given triangle".
For more about the angle,
brainly.com/question/13954458
#SPJ2
Math (If u don't know don't answer!!)
Answer:
in q no 1 what is the statement at first let me see otherwise how can I answer
Person A spends $9.80 on gas. The car drives 27 miles per gallon and the driver drives 135 miles.
Person B's car gets 29 miles per gallon and spends $14.28 on gas to drive 203 miles.
If person A spends $13.72 on gas at the same rate, and person B spends $16.32 on gas, what is the difference in the amount of miles the cars can travel before running out of gas?
(please explain how you got it because I need it for my question and it's due in an hour)
Answer:
i dont know what to say, bro
Step-by-step explanation:
just kidding $72.52
Step-by-step explanation:
A gallon of gasoline costs $2.96.
Your car can travel the distance on each gallon of gasoline = 28.8 miles
Your length of the trip = miles =
First we calculate the total use of gasoline on the trip.
∵ By 1 gallon gas of gasoline you can cover the distance = 28.8 miles
∴ to take miles trip gasoline used =
=
=
= 24.5 gallons
Since the cost of one gallon gasoline = $2.96
∴ The cost of 24.5 gallons of gasoline = 24.5 × 2.96
= $72.52
You spend $72.52 on gasoline for the trip of miles.
Use mental math to find the sum.
67 + 25
187,183 ÷ 2,255
HI...
Multiply.
17.22⋅(−2.4)
Enter your answer in the box.
Answer:
-41.328
Step-by-step explanation:
How to solve this math? Please explain.
Answer:
Step-by-step explanation:
If x2 = 16 , then the possible values of x are +4, meaning 4 and -4.
4+-4=0, so the sum of all possible values of x are 0.
Please do a step by step problem no links please this is due today please answer them all and I will give your brainliest
Answer:
1A. Half jump
1B. 2/3 is half of 4/3
2. 4
Step-by-step explanation:
1A. The remainder of 2/3 is shown in the model by a half jump. It is a half jump because a full jump is 4/3.
1B. We know that the remainder represents 1/2 of the jogging loop because 2/3 is half of 4/3.
2. Convert 2 1/2 into a mixed number with the denominator as eighths. We then get 20/8 divided by 5/8. After that, we can see that 5/8 goes into 20/8 4 times. (5/8 + 5/8 + 5/8 + 5/8 = 20/8)
Referring to the figure, a building casts a
shawdow 18 feet long. A woman standing near the
building is 5 feet 8 inches tall and casts a
shadow 4 feet long. What is the height of the
building in feet and inches?
Identify the rule for the following pattern:
99, 90, 81...
add 9
add 9
multiply 9
multiply 9
subtract 9
subtract 9
divide 9
NEED MORE HELP LOL fasttt!
Answer:
B is answer
Step-by-step explanation:
i think so
A, K, and L have a total of $159. A has $11 more than K. L has twice as much money as K. How much money does L have?
What strategy will you be using?
Write what you did and why you did it.
Answer:
$74
Step-by-step explanation:
Let amount of money that K has be $x.
x+x+11+2x=159
4x+11=159
4x=159-11
=148
x=148÷4
=37
2x=37×2
=74
Please help asap! I really need the answer rn
can someone help with this pls? i don’t understand math at all
Answer:
It's the 4 one
Step-by-step explanation:
Ya 4 one sorry my bad I got it worng last time
Help me!! im stuck and please help me with range
Answer:9
Step-by-step explanation:
The range is the simplest measurement of the difference between values in a data set. To find the range, simply subtract the lowest value from the greatest value, ignoring the others.
Your answer, in this case, is 9. If your largest number is 10 and the smallest is 1.
10-1=9
Answer:
9
Step-by-step explanation:
The range is the simplest measurement of the difference between values in a data set. So 10-1 is 9
Hope that helps
Describe the decimal multiplication equation and product shown by the model. Include details of where each part of the equation is found on the model.
Answer:
0.010 x 0.090 = 9/10000
Step-by-step explanation:
Compare the emergence of advanced civilizations in Meso and South America with the four early river valley civilizations.
Which of the following systems of trade was most widely used in both ancient river civilizations and ancient Native American civilizations?
bartering
the exchange of coined money
free exchange
international trade
Answer:
Bartering
Step-by-step explanation:
Hope this helps!
A survey showed that of 100 high school students, 50 of them took biology, 20 took chemistry, and 12 took both. How many of the 100 students took neither biology nor chemistry?
**Show your work**
Answer:
the answer is 18
Step-by-step explanation:
50+20+12=82
82 - 100 = 18
need help on this pls
Answer: 2
Step-by-step explanation:
Slope is rise over run. So if we look at the points (1,1) and (0,3), you can see that it goes up by 2 units and over one unit, leaving you with "2/1", which is equivalent to 2.
Hope This Helps! :)