Answer:
In order to find the total inches Jasper grew during the two years, we have to add up the total inches he grew when he was 15 and the total inches he grew when he was 16. Therefore, we have to add 1/10 and 3/10 together.
1/10 + 3/10 = 4/10, or 2/5.
Therefore, Jasper grew a total of 2/5 inches in those two years.
1. Students were split in 2 groups for an activity. There are 16 students in group A and
15 students in group B. If 25% of group A and 20% of group B consisted of girls, identify
the group which has a lesser number of girls.
and I
Answer:
Group B
Step-by-step explanation:
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long. A preliminary sample conducted by The Wall Street Journal showed that the standard deviation of the amount of time devoted to previews was 4 minutes. Use that as a planning value for the standard deviation in answering the following questions. Round your answer to next whole number
This question is incomplete, the complete question is;
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and preview ads before the movie starts. Many complain that the time devoted to previews is too long (The Wall Street Journal, October 12, 2012). A preliminary sample conducted by The Wall Street Journal showed that the standard deviation of the amount of time devoted to previews was 4 minutes. Use that as a planning value for the standard deviation in answering the following questions. Round your answer to next whole number,
a) If we want to estimate the population mean time for previews at movie theaters with a margin of error of 75 seconds, what sample size should be used? Assume 95% confidence.
b) If we want to estimate the population mean time for previews at movie theaters with a margin of error of 1 minute, what sample size should be used? Assume 95% confidence.
Answer:
a) the required Sample Size is 40
b) the required Sample Size is 62
Step-by-step explanation:
Given the data in the question;
standard deviation σ = 4 minutes
a)
margin of error E = 75 seconds = ( 75 / 60 )minutes = 1.25 minutes
And 95% confidence.
Now, Critical Value of z for 0.95 confidence interval;
∝ = 1 - 0.95 = 0.05
[tex]Z_{\alpha /2[/tex] = 1.96
so, sample size n will be;
n = [ [tex]Z_{\alpha /2[/tex] × σ/E ]²
we substitute;
n = [ 1.96 × (4/1.25) ]²
n = [ 1.96 × 3.2 ]²
n = [ 6.272 ]²
n = 39.338
Since we referring to a number of sample, its approximately becomes 40
Therefore, the required Sample Size is 40
b)
margin of error E = 1 minutes
And 95% confidence.
Now, Critical Value of z for 0.95 confidence interval;
∝ = 1 - 0.95 = 0.05
[tex]Z_{\alpha /2[/tex] = 1.96
so, sample size n will be;
n = [ [tex]Z_{\alpha /2[/tex] × σ/E ]²
we substitute;
n = [ 1.96 × (4/1) ]²
n = [ 1.96 × 4 ]²
n = [ 7.84 ]²
n = 61.466
Since we referring to a number of sample, its approximately becomes 62
Therefore, the required Sample Size is 62
2+2 brain time yessir
Answer:
Step-by-step explanation:
4 is the correct answer
18
61°
Find missing side round to nearest tenth
Answer:
x = 9.9 or 10
Step-by-step explanation:
to find missing angle -->
90 + 61 + z = 180
151 + z = 180 *subtract 151 from both sides*
z = 29
to find x -->
tan (29) = x/18 *put tan(29) over 1 then cross multiply*
x = 18 (tan(29))
x = 9.97 --> round up to 10
Circle O and circle P are congruent. What can you conclude from the diagram?
Answer:
We can only infer that OA=OB=PD=DE.
Step-by-step explanation:
Since, if two circles are congruent then their radius must be equal.
And, here A and B are the points in the circumference of circle O therefore, the distance of these points from the center O of the circle is the radius of the circle.
So, OA=OB. ( if we join the points O and C then OA=OB=OC)
Similarly, In Circle P, PE= PD. ( if we join the points P and CF then PD=PE=PF).
------------------------------------------------------
Credits to: parmesanchilliwack
Identify each number with an absolute value of 5/2
Answer:
5/2 and -5/2
sry i late
What do we do to both sides of the equation? X-8=3
Step-by-step explanation:
......................
You want to open a checking account at your local bank which offers two options. A standard checking account charges $6 each month plus $.25 for each check written. A select checking account charges $4.50 each month plus $.50 for each check written. Which system of equations can be used to determine the number x of checks that must be written in a month in order for the total charges y for the two checking accounts to be the same?
Answer:
The total charges for the two checking accounts will be the same after 6 checks written.
Step-by-step explanation:
Since I want to open a checking account at my local bank which offers two options, a standard checking account that charges $ 6 each month plus $ 0.25 for each check written, and a select checking account that charges $ 4.50 each month plus $ 0.50 for each check written, to determine which system of equations can be used to determine the number X of checks that must be written in a month in order for the total charges Y for the two checking accounts to be the same, the following calculation must be performed:
6 + 0.25X = Y
4.5 + 0.5X = Y
6 + 0.25x5 = Y
4.5 + 0.5x5 = Y
6 + 1.25 = Y = 7.25
4.5 + 2.50 = 7
6 + 0.25x6 = Y
4.5 + 0.5x6 = Y
6 + 1.50 = Y = 7.50
4.5 + 3 = 7.50
Therefore, the total charges for the two checking accounts will be the same after 6 checks written.
which function has zeros at x = -4 and x = 7
Answer:
Chaeyoung!!!!
Step-by-step explanation:
I love Twice!!!
Which of the following represents the ratio of the corresponding sides of ABC to DEF?
PLEASE HELP ME ASP !! ..
Answer:
Your answer is correct; 2:1
Step-by-step explanation:
Based on the pattern shown, what is 46?
41 = 4
42 = 16
43 - 64
Answer: 44 equals 128
Step-by-step explanation: This is because you do 16 times 4 to get 64, then you double that to 8, so you do 16 times 8 and get your answer 128
HOPE IM RIGHT!
HELPPPPPPP ME PLSSSSSSS
Answer:
answer to your question is 200.96cm^2 but you can round off and write 201cm^2
Step-by-step explanation:
area of circle =pie*(radius)^2
=3.14*(8)^2
=3.14*64
=200.96^2
=201cm^2
Hope it helps u!!
Mr.Martinez asked his students to write a situation that could describe the relationship between all the values of x and y in the table.Whoch situation best describes the relationship between all the values of x and y in the table?
X goes left and right. Y goes up and down. Hope this help:)
Let A be the set of all lines in the plane. Define a relation R on A as follows. For every l1 and l2 in A, l1 R l2 ⇔ l1 is parallel to l2. (Assume that a line is parallel to itself). Which of the following is true for R?
A. R is reflexive.
B. R is symmetric.
C. R is transitive.
D. R is neither reflexive, symmetric, nor transitive.
Answer:
Hence, the relation R is a reflexive, symmetric and transitive relation.
Given :
A be the set of all lines in the plane and R is a relation on set A.
[tex]R=\{l_1,l_2\in A|l_1 \;\text{is parallel to}\; l_2\}[/tex]
To find :
Which type of relation R on set A.
Explanation :
A relation R on a set A is called reflexive relation if every [tex]a\in A[/tex] then [tex](a,a)\in R[/tex].
So, the relation R is a reflexive relation because a line always parallels to itself.
A relation R on a set A is called Symmetric relation if [tex](a,b)\in R[/tex] then [tex](b,a)\in R[/tex] for all [tex]a,b\in A[/tex].
So, the relation R is a symmetric relation because if a line [tex]l_1[/tex] is parallel to the line [tex]l_2[/tex] the always the line [tex]l_2[/tex] is parallel to the line [tex]l_1[/tex].
A relation R on a set A is called transitive relation if [tex](a,b)\in R[/tex] and [tex](b,c)\in R[/tex] then [tex](a,c)\in R[/tex] for all [tex]a,b,c\in A[/tex].
So, the relation R is a transitive relation because if a line [tex]l_1[/tex] s parallel to the line [tex]l_2[/tex] and the line [tex]l_2[/tex] is parallel to the line [tex]l_3[/tex] then the always line [tex]l_1[/tex] is parallel to the line [tex]l_3[/tex].
Therefore the relation R is a reflexive, symmetric and transitive relation.
What is the solution of log(2+ + 4) = log(14.- 3c)?
Answer:
C. 2
Step-by-step explanation:
Cancel log from both sides,
2t + 4 = 14 - 3t
5t = 10
t = 2
Solve x^2-26=0
Answer: x=+-____
Answer:
x = ± √26
Solution
Step-by-step explanation:
Here is the Answer to your question.
Write the rate of decay of the function as a percent. y=12(.9)
Answer:
18
Step-by-step explanation:
12 and a half percent of 48.40
Answer:
6.05
Step-by-step explanation:
12 and a half percent of 48.4 = 6.05 because you can put .125 in your calculator and it is the same at 12.5% so you do .125 * 48.40 and you get 6.05
Question # 3: Two-sixths of the kids attending a tennis camp are left-
handed. There were 48 total kids attending the camp. How many kids are
left handed?
Answer:
52
Step-by-step explanation:
34-56/93
390 + 86(90x89)
DONT LISTEN TO THIS
Find the circumference of each circle. Round to the nearest tenth. Use 3.14 or 22/7
A. 1,078
B. 164
C. 154
d. 77
Answer:
Circumference of given circle = 154 cm² (Approx.)
Step-by-step explanation:
In given diagram:
Diameter of given radius = 49 cm
Value of π = 3.14
Find:
Circumference of given circle
Computation:
Radius of given circle = Diameter of given radius / 2
Radius of given circle = 49 / 2
Circumference of given circle = 2πr
Circumference of given circle = 2(3.14)(49/2)
Circumference of given circle = (6.28)(49/2)
Circumference of given circle = 153.86
Circumference of given circle = 154 cm² (Approx.)
I need this please help me
The high school is 3.6 inches from the middle school on a map. Each half inch on the map represents 0.4 mile. What is the actual distance between the two schools?
2.88 miles
4.5 miles
7.2 miles
9 miles
Answer:
2.88 miles
Step-by-step explanation:
because 3.6/.5 = 7.2
then 7.2 × .4 = 2.88
Tina wants to buy grass seed to cover her whole lawn, except for the pool. The pool is 7/12 m by 3 /14 m. Find the area the grass seed needs to cover.
Answer:
Since Tina wants to buy grass seed to cover her whole lawn, except for the pool, and the pool is 7/12 m by 3/14 m, to find the area the grass seed needs to cover the following calculation must be performed:
It is impossible to determine the area that the grass seed needs to cover, because we do not have the data of the total size of the lawn. Now, you can determine the size of the surface that should not be covered, which is the one that the pool occupies, namely:
7/12 x 3/14 = X
0.583333 x 0.2142 = X
0.1249 = X
Therefore, the grass seed should not cover about 0.1249 square meters.
1
A train trip took 4 hours. For the trip, the train traveled at 60 kilometers per hour. For the
2
rest of the trip, the train traveled at 100 kilometers per hour. How far did the train travel
in all?
Answer:
320 kilometers
Step-by-step explanation:
1/2 -- (60 * 2) = 120 km
rest pf the trip -- 100 km per hour -- 2 hours left -- (100 * 2) = 200 km
Therefore, 120 + 200 = 320 km
Thenks and mark me brainliest :)
Identify the terminal point for a 30° angle in a unit circle.
The terminal point of the unit circle (cos θ, sine θ) for 30° is ( √3/2 , 1/2 ).
What is the terminal point?"The terminal point is the ray that has been rotated around the origin to form an angle with the stationary ray which is the initial side of the angle. They are sine and cosine values of the most common acute-angle measures".
For the given question,
Angle = 30°
The terminal point on the unit circle has the cosine as x -coordinate and the sine as y - coordinate are mostly acute-angle measures.
Here, θ = 30°
The x-coordinate is cos 30° = [tex]\frac{\sqrt{3} }{2}[/tex]
The y-coordinate is sin 30° = [tex]\frac{1}{2}[/tex]
Hence we can conclude that the terminal point for 30° is ( √3/2 , 1/2).
Learn more about terminal points of circles here
https://brainly.com/question/23361272
#SPJ2
Answer:
Hihi <333
Step-by-step explanation:
The answer is C.
Whenever looking at questions from this site make sure to carefully read your question so you don't accidentally click the wrong answer
Which prism has a greater volume?
O Prism Ahas 17 more cubic units volume than prism B.
O Prism A has 7 more cubic units of volume than prism B.
O Prism B has 3 more cubic units of volume than prism A.
O Prism B has 8 more cubic units of volume than prism A.
Answer:
It may be A. or C.
Step-by-step explanation:
A. 5 = 20 4 = 16 4 = 16 20 + 16 = 36 + 16 = 52
B. 3 = 12 3 = 12 7 = 27 + 12 = 39 + 12 = 51
i uhhh don't know this is confusing
im very sorry if im incorrect
Answer:
not c
sorry its not exact
eeeeeeeeeeeeeeeebrainliesteeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
[tex] \frac{5}{24} [/tex]
Step-by-step explanation:
Given:
[tex] \frac{7}{8} - \frac{2}{3} [/tex]
Required:
Difference of the fractions in simplified form
Solution:
[tex] \frac{7}{8} - \frac{2}{3} [/tex]
The common denominator of both fractions is 24
Therefore:
[tex] \frac{3*7 - 8*2}{24} [/tex]
[tex] \frac{21 - 16}{24} [/tex]
[tex] \frac{5}{24} [/tex]
Dan has put his coins into 2 stacks, Each stack has the same number of coins. There are 12 coins total, How many coins are in each stack?
Answer: 6
Step-by-step explanation: Division use a calculator 12/2
Answer:
6
Step-by-step explanation:
From question:
Dan has put his coins into 2 stacks
2 stacks in total
Each stack has the same number of coins
Number of coins in stack 1 = number of coins in stack 2
x = x
There are 12 coins total
Total number of coins in 2 stacks = 12
2x = 12
x = 6
There are six coins in one stack.
SOLVE EACH SYSTEM OF EQUATIONS BY SUBSTITUTION!!!
Answer:
.
Step-by-step explanation:
I need help on this
Answer:50
Step-by-step explanation: