Answer:
x=3.33
Step-by-step explanation:
2x=x-10
2x+x=10
3x=10
x= 10/3
x= 3.33
Find the equation of the line. Use exact numbers. y = _x+_
Can a person train to become better at holding their breath? An experiment was designed to find out. A group of 12 volunteers were randomly assigned to 1 of 2 groups. The 6 volunteers assigned to group 1 were given breath-holding exercises to perform for 2 weeks. The other group was not given any information about the experiment. At the end of the 2 weeks, all 12 volunteers were individually tested to determine how long they could hold their breath. Here are the data (in seconds):
Group 1: 90, 88, 70, 110, 75, 105
Group 2: 40, 48, 35, 50, 55, 62
The researcher would like to determine if these data provide convincing evidence that the true mean amount of time volunteers who were given training held their breath is greater than the true mean amount of time volunteers without training held their breath. The researcher tests H0: μ1 – μ2 = 0, Ha: μ1 – μ2 > 0, where μ1 = the true mean amount of time that volunteers who were given training held their breath and μ2 = the true mean amount of time that volunteers without training held their breath. The conditions for inference are met. The standardized test statistic is t = 5.44. What is the P-value of this test closest to?
Answer is A, 0
The null hypothesis may be significantly rejected. Choose A, 0, for the closest response.
What does "true mean" refer to?In statistics, the term "true mean" refers to the true mean of a population or set of data.
It is typically unknown; hence it is estimated using inferential statistics using a sample.
For group 1, s1²= 250.67
group 2, s2² = 96.27
t= 5.44 which is the difference of mean.
Given the data values:
Group 1: 90 88 70 110 75 105
Group 2: 40 48 35 50 55 62
For group 1, n1 = 6
group 2, n2 = 6
Given that H_o= u1 - u2 = 0
H_a = u1 - u2 > 0
To find the t-test about the difference, we would use the formula to solve.
The totals are displayed below:
x1 = 538
x2 = 290
(x1-x2) ² = 1253.3334
x2-x2= 0
(X2-x2) ² =481.3334
For group 1, s1²= 250.67
group 2, s2² = 96.27
t= 5.44 which is the difference of mean.
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Formula to convert 220 oz to grams
Answer:
For an approximate result, multiply the mass value by 28.35
F'(x)=2x+17 f(1)=7 what is f(0)
9514 1404 393
Answer:
f(0) = -11
Step-by-step explanation:
The function f(x) is found by integrating its derivative. The constant of integration is found from the given point.
[tex]\displaystyle f(x)=\int{f'(x)}\,dx=\int{(2x+17)}\,dx=x^2+17x+c\\\\f(1)=7=1^2+17\cdot1+c\quad\rightarrow\quad c=-11\\\\f(0)=0^2+17\cdot0-11\\\\\boxed{f(0)=-11}[/tex]
Mark borrowed $5,500 at 11.5 percent for five years.
How much did Mark pay in interest?
$1,150
$1,520
$1,757
$2,300
Answer:
$ 1 , 150
Step-by-step explanation:
John is giving out chocolate to his friends. If he wants to give each friend 23
of a chocolate bar and he has 13 friends, how many chocolate bars will he
need to buy?
Answer:
299
Step-by-step explanation:
23x13 = 299
Mr. Q’s class is having a give away where his students can
receive 100 classroom credits. He will pull names out of a hat and select two winners. Once a student wins, they are not
eligible to win a second time. If there are 40 total people in the class, including you and your
best friend.
What is the probability that both you and your best friend get the 100 classroom credits?
Answer:
2.5 I think
Step-by-step explanation:
What is the m angle3 ?
The measure of m<3 is 105 degrees
Using the law that states that the sum of an interior angle of a rectangle is equal to the exterior.
From the given diagram;
m<X + m<Y = m<3
Given that m<X= 55 degrees and m<Y = 50 degrees
m<3 = 55 + 50
m<3 = 105 degrees
Hence the measure of m<3 is 105 degrees
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Please help me. I dont have much time! Thank you if you decide to help tho
Answer:
D. They have the same slope, and the same y-intercept so they have infinitely many solutions.
Step-by-step explanation:
Graphing these lines shows that both lines are the exact same line, and cannot have a point of intersection. Solving the equations shows you a value that is ultimately always correct; such as 0=0. This can be used as proof that "They have the same slope, and the same y-intercept so they have infinitely many solutions" because either equation can be rearranged to equal the other.
Estimate the payment on a 2019 Honda Civic that is selling for $24,599. You will be leasing the vehicle for 3 years. The estimated resale value of the Honda after 3 years will be $13,750 and the sales tax and fees are estimated at 10%. You will need a 20% down payment and you will be financing the balance for 3 years at 2.8%.
Answer:
Step-by-step explanation:
Tultiplication and Division
17. During the last basketball season, Tanisha played in 16 games and averaged
18 points per game. Find her total points by using the verbal model below
to write and solve an equation.
Total points
Average points
per game>
Number of games played
18. A printer prints documents at a rate of 12 pages per minute, A copier
copies documents at a rate of 10 pages per minute.
a. Write and solve an equation to find the time it takes to print a 24-page
research paper.
auntion to find the time it takes to copy a 50-page
Nii
Answer:
288 points
2 minutes
5 minutes
Step-by-step explanation:
Given that :
Average point per game = 18 points
Number of games played = 16
Total points claimed = number of games played * average points per game
Total points = 18 * 16 = 288 points on average
Print rate = 12 pages per minute
Copying rate = 10 pages per minute
To print a 24 page research paper :
Time taken = number of pages / printing rate
Time taken = 24 / 12 = 2 minutes
To copy a 50 page paper :
Time taken = number of pages / copying rate
Time taken = 50 / 10 = 5 minutes
This is the second one (I need to get to 80)
20×36= 720
5×15= 75
75+720= 795
the correct answer is 795 ><
25,000 gallons of my pool needs to be completely drained for maintenance purposes your pump and principal at a rate of 30 gallons a minute let it represent the number of hours the pool has been raining right now equation that can be used to determine the number of hours it will take to complete the drain the pool supposed start raining the pool Monday, May 7 at 8 AM would it be safe to schedule maintenance to begin on Tuesday, May 8 at noon
Answer:
c
Step-by-step explanation:
What is the answer to 4 1/3 - 1 1/5
Answer:
3 2/15 or approximately 3.13
Step-by-step explanation:
4 1/3 - 1 1/5
=13/3 - 6/5
= 47/15
=3 2/15 or approximately 3.13
The first 5 terms in a pattern are
shown below.
25 13 27
-6,-4' 2' 4-7
If the pattern continues, which
equatior. could be used to find the nth
term?
Answer:
Option B. m(n) = –5.75 –¼n
Step-by-step explanation:
The sequence is given below:
–6, –25/4, –13/2, –27/4, –7
Next, we shall determine the common difference.
Common difference (d) = 2nd – First
2nd term = –25/4
First term = –6
d = –25/4 – – 6
d = –25/4 + 6
d = –6.25 + 6
d = –0.25 = –¼
Finally, we shall determine the nth term
Tₙ = a + (n –1)d
First term (a) = –6
Common difference (d) = –¼
Tₙ = a + (n –1)d
Tₙ = –6 + (n –1)–¼
Tₙ = –6 –¼n + ¼
Tₙ = –6 + ¼ –¼n
Tₙ = –6 + 0.25 –¼n
Tₙ = –5.75 –¼n
Thus, the nth term is given by:
m(n) = –5.75 –¼n
The population of leave town is 1-23,560 and is decreasing at a rate of 1.5%
each
year.
a) when will the population of Leavetown drop below 47,000 Cto the nearest
year)?
b) what will the population of leavetown be years from now?
Answer: a is correct
Step-by-step explanation:
At 25 years
Step-by-step explanation:
123,000 x 2.375% = 2,921.25. This gives you the rate that the population is decreasing. How long will it take to get to 50,000. Do reverse operations to find this answer: 123,000 - 50,000 = 73,000, the population need to decrease by 73,000 to get to 50,000. So let's multiply our rate of 2,921.25 x 25 = 73,031 and our final step.. 123,000 - 73,031 = 49,969 below 50,000
BRAINLIST PLEASE CAN I GET BRAINLIST
Solve for xxx in the diagram below
Answer:
x=20°
Step-by-step explanation:
x° + 100° + 3x° = 180° => 4x°+100°=180° => 4x=180°-100°=80° => x=80° : 4 = 20° => x=20°
The value of angle x will be equal to 20°.
What is a supplementary angle?If two angles sum up to 180 degrees, they are referred to as supplementary angles. A straight angle is created by supplementary angles (180 degrees)
The angle is defined as the span between two intersecting lines or surfaces at or close to the point where they meet.
Given that the three angles are x, 3x, and 100 degrees. The value of the angle x will be calculated as below:-
For supplementary angles, the sum of the angles is 180 degrees.
x° + 100° + 3x° = 180°
4x°+100°=180°
4x=180°-100°=80°
x=80° : 4
x=20°
Therefore, the value of angle x will be equal to 20°.
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In a popular online role playing game, players can create detailed designs for their
character's "costumes," or appearance. Samuel sets up a website where players can
buy and sell these costumes online. Information about the number of people who
visited the website and the number of costumes purchased in a single day is listed
below.
81 visitors purchased no costume.
17 visitors purchased exactly one costume.
2 visitors purchased more than one costume.
Based on these results, express the probability that the next person will purchase no
more than one costume as a fraction in simplest form.
Answer: 49/50
Step-by-step explanation:
81 + 17 + 2 = 10
98/100 = 49/50
The probability as a fraction in simplest form is 49/50.
Terry has a savings account that pays 1.9% interest per year. Terry’s grandmother opened the account for him on his 10th birthday and deposited $500. How much will Terry have in the account on his 14th birthday if no other deposits or withdrawals are made? Interest earned each year is added to the account at the end of the year.
Answer:
he will make 38 dollars by his 14th birthday
cuales serían los distintos grupos de personas que podrian sentarse en 24 mesas cuadradas de tal manera que formen otras mesas rectangulares
y en 36 mesas cuadradas
Answer:
Step-by-step explanation:
Correct answer will be marked brainliest
find the value of x
4x + 2 = 8
Answer: x = 6/4
Step-by-step explanation:
4x + 2 = 8
4x = 6
x = 6/4 or 1 1/2
Hope this helped :)
Answer:
x = 1.5, 1 1/2
Step-by-step explanation:
4x + 2 = 8
4x = 6
4x/4 = 6/4
x = 1.5
1.5 = 1 1/2
Have a nice day! :-)
What is the best estimate of the sum of fractions?
Answer:
13
Step-by-step explanation:
Edgeunity 2021
I'm pretty sure, I just estmated the answer to 13 which was the closest.
USING THE GRAPHING FUNCTION ON YOUR CALCULATOR WHAT IS THE SOLUTION TO THE SYSTEM OF EQUATIONS SHOWN BELOW? Y+2X=5 4Y=5X=14
Answer:
x= 2, y= 1
Step-by-step explanation:
took one for the team<3
Find the values of m and n.
Answer:
[tex]m=46^{\circ},\\n=22^{\circ}[/tex]
Step-by-step explanation:
From the isosceles-base theorem, the base angles of two equal legs in a triangle must be equal. Thus, we can set the up the following equation to solve for [tex]n[/tex]:
[tex]136+n+n=180,\\136+2n=180,\\2n=44,\\n=\boxed{22^{\circ}}[/tex]
Now that we've found [tex]n[/tex], we can set up the following equation with respect to the largest triangle:
[tex]90+n+m+n=180,\\90+22+m+22=180,\\134+m=180,\\m=\boxed{46^{\circ}}[/tex]
Answer:
M = 46°
N = 22°
Step-by-step explanation:
Value of M:
Sum of angles in triangle = 180°
180° - 90° - (180° - 136°) = m
90° - 44° = m
m = 46°
Value of N:
The triangle is isosceles (marked by the two congruent lines with the tick)
That means that the other two angles, are the same
180° - 136° = 2n
44° = 2n
n = 22°
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Caleb has shelves that hold
a total of 600 boxes. What
percent of the shelves are
Full if he has 60 boxes?
Please help no links thank you!
Answer:
10%
Step-by-step explanation:
if he has 60 boxes then it would be 60/600
simplify that to 6/60 which further simplifies to 1/10 which is 10%
Answer:
600-100%
60-10%
Odp-Wynosi 10% tep-by-step explanationu Pozdrawami
Is a triangle with the side lengths 4 feet, 7.5 feet, and 8.5 feet a right triangle? Why or why not?
Answer: Yes, it is a right triangle
Step-by-step explanation:
Use the pythagorean theorem in order to determine whether this triangle is a right triangle. Plug in the values given in the problem (4, 7.5, and 8.5) into this equation (a^2+b^2=c^2). This gives you 4^2+7.5^2=8.5^2, and this equation is valid because 4^2+7.5^2 does equal 8.5^2.
Answer:
Yes, because 4^2+7.5^2=8.5^2.
Step-by-step explanation:
Slay just did this on my test good luck
Estimate: 5+81.65
HELP
PLEASE
Answer: 5+81.65≈85
How to: Estimate.
Have a great day and stay safe !
Challenge A bag contains pennies, nickels dimes, and quarters. There are 50 coins in all of the
coins 18% are pennies and 40% are dimes. There are 2 more nickels than pennies. How much
money does the bag contain
The bag contains S
Answer:
The bag contains $5.14
Step-by-step explanation:
18% of 50 = (.18)(50) = 9 pennies
40% of 50 = (.40)(50) = 20 dimes
2 more nickels than pennies = 9 + 2 = 11 nickels
40 coins so far, so 50 - 40 = 10 quarters
Total value:
9 x ($0.01) = $0.09 for pennies
20 x ($0.10) = $2.00 for dimes
11 x ($0.05) = $0.55 for nickels
10 x ($0.25) = $2.50 for quarters
Grand total value = $5.14
Find the missing side of this right
triangle.
х
7
12
x =
Enter the number that belongs in the green box.
Enter
Answer:
19is the answer I think so please check it iam sorry
x = √144 + 49
x = √193
.........................
If x = 3 cm and z = 5 cm, what is the length of y? A. 3 cm B. 0.5 cm C. 4 cm D. 5 cm
If x = 3 cm and z = 5 cm, what is the length of y? A. 3 cm B. 0.5 cm C. 4 cm D. 5 cm
ans.C.4cm