Solve
Given: 2.54cm = 1 inch
To find: 4 feet 8 inches in centimeters
If 1 inch is 2.45cm,
Divide 2.45 by 1
Then multiply it by 4.8
Final answer: 146.3cm in nearest tenth.
what is 6+(−434)+(−218) simplified?
Answer:
Hi! The answer to your question is -646
Step-by-step explanation:
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☁Brainliest is greatly appreciated!☁
Hope this helps!!
- Brooklynn Deka
A sports marketing company is interested in how many hours teenagers in a town spend watching sports. They randomly select 40 teenagers in this town and ask how many hours per week they spend watching sports. The mean amount is 6.25 hours with a standard deviation of 4.33 hours. Which of the following is the 90% confidence interval for the true mean amount of time teenagers from this town watch sports?
Find the t-table here.
(4.396, 8.104)
(4.865, 7.635)
(5.097, 7.404)
(5.245, 7.256)
Answer:
C. (5.097, 7.404)
Step-by-step explanation:
EDGE 2020
The 90% confidence interval for the true mean amount of time teenagers from this town watch sports is (5.097, 7.404).
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
The formula for the confidence interval is:
CI = x ± tα/2 × (s/√n)
where x is the sample mean,
s is the sample standard deviation,
n is the sample size, and
tα/2 is the t-value with (n-1) degrees of freedom and a confidence level of 90%.
From data (x) is 6.25 hours and
s= 4.33 hours.
We also know the sample size (n) is 40.
To find the t-value with (n-1) degrees of freedom and a confidence level of 90%, we can use a t-table.
For 39 degrees of freedom and a confidence level of 90%
Let us find that the t-value is 1.684.
Substituting the values we have into the formula, we get:
CI = 6.25 ± 1.684 × (4.33/√40)
CI = (5.097, 7.404)
Therefore, the 90% confidence interval for the true mean amount of time teenagers from this town watch sports is (5.097, 7.404).
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HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
A
Step-by-step explanation:
It will always go down if you put more wait.
Can I have Brainliest
Find the area of the rectangle.
2X+3
X+1
Answer:
Doesn't seem like a rectangle but when you combine like terms you get 5x+1
sorry if it didn't help.
Step-by-step explanation:
At the city triathlon, athletes bike 110 miles, run a 23.5 miles marathon, and swim. If the total distance of this triathlon is 135.7 miles, how far de the athletes swim?
Answer: 2.20 miles
Step-by-step explanation:
The triathlon involves the bike race, swimming and the marathon.
You are given the distance for the marathon, the biking and the total distance.
Total distance = Swimming + Marathon + Biking
135.7 = Swimming + 23.5 + 110
Swimming = 135.7 - 23.5 - 110
Swimming = 2.20 miles
Find the area. Please hurry!
Plz I need help with this ASAP
3x^2/4=48
This is solving quadratic functions by square roots btw
Answer:
x = 8
Explanation:
[tex]\frac{3x^2}{4} =48[/tex]
multiply both sides by 4: [tex]3x^2=192[/tex]
divide both sides by 3: [tex]x^2=64[/tex]
take the square root:
[tex]\sqrt{x^2} = \sqrt{64} \\x=8[/tex]
can someone help me asap
Answer:
so 414 so the 4 in the hounded coloum
1011 the one is in the tenths coloum
does this help you work out the over two
Step-by-step explanation:
Alan worked for 2 58 hours doing yard work. He spent 1 12 hours raking leaves. He spent the rest of the time cleaning out the flower bed. How long did he spend cleaning out the flower bed?
1 13/24
Ignore this btw that is the answer i’m just writing this cause it says i have to write 20 letters-
Which questions can be answered by finding the volume? Check all that apply. How much wrapping paper is needed to cover a box? How much juice is inside the juice box? How much paint is needed to cover the walls in a bedroom? How much sand is needed to fill a sandbox? How much ice can fill a cooler?
State the slope and y-intercept for the graph of the equation -8x + y = -12.
Show your work!!
Answer:
Slope is 8 and Y-Intercept is -12
Step-by-step explanation:
Move the -8x over to the right side by adding it, You are now at
y=-12+8x
Move these around and you are now at
Y=8x-12
Answer:
Step-by-step explanation:
Remark
y must have a numerical coefficient of 1. This equation does. If it does not, then you must divide through by whatever is in front of the y.To read the slope, you must have x and its coefficient on opposite sides of the equal sign. So you get y = 8x - 12 when you add 8x to both sidesNext, the y intercept is found when x = 0y = 8x - 12y = 8(0) - 12y = - 12The y intercept is -12 or in point form (0, - 12)Answer
slope = 8
y intercept = - 12
In parallelogram NPQR if NS=20 find SQ
Answer:SQ=20
Step-by-step explanation:
NS=20
NS=SQ
SQ=20
The value of SQ is 20
What is parallelogram?The Greek word "parallelogram on," which means "bounded by parallel lines," is where the term "parallelogram" comes from. As a result, a parallelogram is a quadrilateral with parallel lines defining its boundaries. The opposite sides are parallel and equal in this shape. There are three main classes of parallelograms: square, rectangle, and rhombus each have their own distinct characteristics.
Given a parallelogram NPQR
and NS = 20 to find the value of SQ
since S is the intersecting point of diagonals of parallelogram,
so NS = SQ
The two diagonals cut across one another. The parallelogram is divided into two congruent triangles by each diagonal. The sum of the squares of a parallelogram's diagonals and all of its sides is the same.
SQ = 20
Hence for parallelogram SQ = 20.
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The complete question is attested in image.
Solve the following system using substitution:
x - 4y = -1
-3x +8y = -2
Answer: ( 4, 5/4)
Step-by-step explanation: x = 4, y = 5/4
How do you solve this proof?
Answer:
Angle = A
A7 = A4 (Alternate interior angles)
A14 = A11 (Vertically opposite angles)
A11 = A6(Corresponding angles)
A4 = A14 (Given)
From this, we can get A6 = A4
A6 and A4 are alternate angles and are equal. So c and d are parallel.
A7 + A10 = 180 (Linear pair of angles) - ( 1 )
A13 = A10(Alternate interior angles)
Putting A13 in place of A10 in ( 1 ),
A7 + A13 = 180
Hence proved
Ask doubts if any
A solid circular cylinder has a base radius 5 cm and a height 12.5 cm. Find the approximate increase in the surface area of the cylinder when the radius of the base increases to 5.05
Answer:
19.72 cm²
Step-by-step explanation:
A solid circular cylinder has a base radius 5 cm and a height 12.5 cm.
The volume of cylinder is given by :
[tex]V=\pi r^2 h\\\\=3.14\times (5)^2\times 12.5\\\\=981.25\ cm^2[/tex]
When r = 5.05, new volum becomes,
[tex]V=\pi r^2 h\\\\=3.14\times (5.05)^2\times 12.5\\\\=1000.97\ cm^2[/tex]
Increase in area = 1000.97 - 981.25 = 19.72 cm²
So, the increase in surface area of the cylinder is equal to 19.72 cm².
PLEASE I NEED HELPPPPP!!!!!!!!! Determine the measure.
Answer:
710°
Step-by-step explanation:
360° because you make a full rotation + 270° because you go 3/4 of the way around + 80° = 710° total.
Quadrilateral ABCD is inscribed in circle O as shown below.
Answer:
Step-by-step explanation:
180 - m∠1
PLEASE HELP (12 YEAR OLD MATH)
Answer:
1.5 I think?
Step-by-step explanation:
it was counting by 6 but then skipped to 26 so I assume it is 1.5
At Food Lion, you can buy 3 bags of Takis for $4.99. What is the
price of one bag of Takis? (Round to the nearest cent)
Answer:
Step-by-step explanation:
price of one bag of Takis = $4.99/3 = $1.66333, which is approximately $1.66
5. To determine the number of kids under the age of 5 in your neighborhood, you sit outside of
your apartment and count the number of kids under 5 that pass by between the hours of 7AM
and 8AM. Do you think this method will provide you with a representative random sample?
Explain your reasoning.
Answer:
It will not provide a representative random sample.
Step-by-step explanation:
This is because kids under five will only leave the house if they are going to the park or doing something with there parents. They don't go to school either so they most likely won't leave during the hours of 7 AM and 8 AM.
Hope this helps! :D
- Luna
There are 60 sheets of papers in each pack. How many packs are needed to arrange for 5432 sheets?
Answer:
90 8/15 hope this helps byee
PLZZ HELP WITH THIS HOMEWORK
Witch equation is true when the value of x is -12?
A:1/2x + 22 = 10
B:15 - 1/2x = 21
C:11 - 2x = 17
D:3x - 19 = -17
Answer:
please the answer is D
I'm very interested in the question
is -51/5 rational or irrrational
A group of 25 students is asked which of football or rugby they play regularly.
• 10 say they play both.
15 say they play rugby.
4 say they do not play either of the sports.
.
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a) Complete the Venn diagram.
The universal set, &, contains all of the
25 students.
[3]
b) One of these students is chosen at random.
What is the probability that this person plays football?
Answer:
a) see explanation
b) 40%
Explanation:
a) sorry, i can't specifically help with this one unless you attach a picture of the venn diagram. but the way venn diagrams work is that you draw several circles, each representing a trait (i.e. plays rugby). circles will overlap if someone has more than one trait (i.e. plays both sports).
b) the probability is 10 ÷ 25 × 100% = 40%.
i hope this helps! :D
How much time is between 2:30 pm and 4:15pm?? I need an answer quick!!
Answer:
Step-by-step explanation:
First do 4 -2 to get 2. Then do 30-15 to get 15. It’s 2:15.
You can also do this on a calculator by doing 4.15-2.30. You get 1.85
Remember that time is only up to 60 So you have to subtract 15 from 85 to get 60. So it’s 2 hours and 15 minutes. Hope this helps!
PLEASE HELP ILL GIVE BRAINLIEST
You walked 30 miles in 6hours. What was your average speed? a. 5mph b.80 mph c. 24mph d. 18 mph
Answer:
5 mph.
Step-by-step explanation:
5x6 equals 30. 30 divided by 6 equals five. Hope it helps
Answer:
A. 5mph
Step-by-step explanation:
30m = 6h
/6 /6
5m = 1h
5mph
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease per unit
of x, to the nearest tenth of a percent.
y = 1600e -0.1252
Answer: -34738.4259228
Step-by-step explanation:
It’s a decrease because your dividing 1600e -0.1252
jen thought she would get 12 questions right on the test but she only got 8 what is the percent of error?
Answer:
50 percent of error
Step-by-step explanation:
((experiment - real)/real) x 100 = the percentage
(12-8) = 4
4/8 = .5
.5 x 100 = 50%
Find the coordinates of point M, that partitions the directed line segment SY from S(4,2) to Y(-4,-6) in a ratio of 1/3.
Answer:
the coordinates of point M = (2,0)
Step-by-step explanation:
Given;
point S along the segment, = S(4,2)
point Y along the segment, = Y(-4, -6)
ratio of the partition = ¹/₃
total ratio = 1 + 3 = 4
The midpoint of segment SY is calculated as follows;
[tex]mid-point (o) = \frac{x_1 + x_2}{2} ,\ \frac{y_1 + y_2}{2}\\\\ mid-point (o) = \frac{4 + (-4)}{2} , \ \frac{2+ (-6)}{y} \\\\mid-point (o) = \frac{0}{2} , \ \frac{-4}{2} \\\\mid-point (o) = (0, \ -2)[/tex]
The coordinates of point M is calculated as follows;
point M divides the segment into 4 equal parts with point O as the mid-point.
M
S--------------|-------------------O-------------------|-------------------Y
|SO| = |OY|
[tex]The \ mid-point \ of \ SO = M\\\\Point \ S = (4,2) \\\\Point \ O = (0,-2) \\\\Point \ M = \frac{4 + 0}{2}, \frac{2 - 2}{2} \\\\ Point \ M = 2, 0 \\\\M = (2,0)[/tex]
Therefore, the coordinates of point M = (2,0)