Answer:
4 kg
Step-by-step explanation:
Since the mass of one small brick is 1.5 kg, the mass of 8 small bricks is 1.5 × 8, or 12 kg. Since 12 kg is the total mass of 3 large bricks, it follows that each large brick will have a mass of 12 ÷ 3, or 4 kg.
Jasper was testing H_0: \mu=36H
0
:μ=36H, start subscript, 0, end subscript, colon, mu, equals, 36 versus H_\text{a}: \mu\neq36H
a
:μ
=36H, start subscript, start text, a, end text, end subscript, colon, mu, does not equal, 36 with a sample of 161616 observations. His test statistic was t=2. 4t=2. 4t, equals, 2, point, 4. Assume that the conditions for inference were met. What is the approximate P-value for Jasper's test?
Choose 1 answer:
Answer:
0.02< P-value<0.04
Step-by-step explanation:
Since this P-value is less than the usual significance level of 0.05, we would reject the null hypothesis and conclude that there is evidence of a difference between the true population mean and 36 at the 0.05 level of significance.
What is hypothesis testing?Hypothesis testing is a statistical method that is used to make decisions about a population based on a sample of data.
It involves testing a null hypothesis (H0) against an alternative hypothesis (Ha) using statistical techniques.
We have,
To find the P-value for Jasper's test, we need to use the t-distribution with degrees of freedom (df) equal to the sample size minus one,
which is 16-1=15 in this case.
Using a t-table or a calculator, we can find that the two-tailed P-value for t=2.4 with df=15 is approximately 0.029.
This means that if the null hypothesis is true (i.e., if the true population mean is 36), the probability of observing a sample mean as extreme as or more extreme than the one obtained by Jasper is 0.029.
Thus,
Since this P-value is less than the usual significance level of 0.05, we would reject the null hypothesis and conclude that there is evidence of a difference between the true population mean and 36 at the 0.05 level of significance.
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If angle b measures 25°, what is the approximate perimeter of the triangle below? a right triangle is shown. angle a is 90 degrees and angle b is 25 degrees. side a b has a length of 4. 10.3 units 11.8 units 22.1 units 25.2 units
Answer:
Step-by-step explanation:
I think the answer is 10.48 or 10.3, It was a little difficult because I solved this multiple ways but I do believe 10.48 is more accurate, I apologize however if I am wrong.
Answer:
10.3
Step-by-step explanation:
its right
Put in order from greatest to least: -5, -10, -1/2, -2.5, -0.25
Answer:
-0.25, -1/5, -2.5, -5, -10
Step-by-step explanation:
Which expression is equivalent to
(
3
4
7
5
)
3
?
Consider the equation below. n2 3h2 right arrow. 2nh3 what is the mole ratio of hydrogen to ammonia? 1:1 1:2 3:2 5:4
The mole ratio of hydrogen to ammonia in the equation N₂ + 3H₂ → 2NH₃ is 3:2
How to find mole ratio?we will balance the equation to find the mole ratio of the hydrogen to ammonia.
Therefore,
N₂ + 3H₂ → 2NH₃
From the equation, Nitrogen has a coefficient of 1 , Hydrogen have a coefficient of 3 and ammonia have a coefficient of 2.
Therefore, the coefficient of the substance is the number of moles.
Hence, the mole ratio of hydrogen to ammonia is 3:2
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if john has 5 apples in he gives 2 two his friend how many will have in all
Answer:
5 apples
Step-by-step explanation:
Answer:
3 5-2=3
Step-by-step explanation:
EXERCISES
1
The number of goals for the 13 players on a soccer team are
4, 9, 0, 1,1, 2, 0, 0, 2, 8, 8, 3, 1. Find the median, lower quartile, and
upper quartile. Then make a box plot for the data.
Answer:
Step-by-step explanation:
4, 9, 0, 1,1, 2, 0, 0, 2, 8, 8, 3, 1.
Arrange in ascending order:
0, 0, 0, 1, 1, 1, 2, 2, 3, 4, 8, 8, 9.
The median = middle value = 2.
Lower quartile = 0.5
Upper quartile = 6.
Equivalent to 28xy+16x
Answer:
[tex]4x(7y+4)[/tex]
I NEEED HELP QUICK!!!
7. What is the surface area of the triangular prism shown?
Answer:
1120 yd²
Step-by-step explanation:
Surface area =
(Perimeter of the base × Length of the prism) + (2 × Base Area) =
(S1 + S2+ S3)L + bh
(17 + 15+ 8)25 + 15*8
40*25+120
1000+120 =
1120
cuemath
Ellie missed 76 questions on her multiple choice history final and earned a grade of 62%. How many total questions were on the final exam?
Answer:
200 questions on the final exam.
Step-by-step explanation:
38% = 76 questions, 100% = 2.63157894737 x 76 = 200
(100/38=2.63157894737 hence this is the answer)
What is the distance betw
What is the distance between (-2,0) and (-11,0)
The formula in finding the distance between two points is given below:
[tex] \boxed{\bold{\:\:d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \:\:}}[/tex]Now, you know the distance formula. So, let us try solving the given problem using the distance formula.
Problem: What is the distance between (-2, 0) and (-11, 0)?
From inspection on the given problem:
[tex]\sf (x_1, y_1) = (-2, 0)[/tex][tex]\sf (x_2, y_2) = (-11, 0)[/tex]Substitute the given values into the distance formula and solve for d:
[tex]\sf d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}[/tex][tex]\sf d = \sqrt{[-11 - (-2)]^2 + (0 - 0)^2}[/tex][tex]\sf d = \sqrt{(9)^2 + (0)^2}[/tex][tex]\sf d = \sqrt{81 + 0}[/tex][tex]\sf d = \sqrt{81}[/tex][tex]\bold{d = 9 \: units}[/tex]Therefore, the distance between two points is 9 units.
[tex]\\[/tex]
Now, wasn't that easy? Try this sample problem:
Find the distance between P(1, 3) and Q(7, 11).From the sample problem above, you may solve it on your own to enhance your skill on calculating the distance.
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-2(0)+2y=6
please help now I need to get this done please thank you
Answer:
y=3
Step-by-step explanation:
Multiply -2 by 0 to get 0. Now to get y alone, divide 6 by 2 to get the answer y=3.
In ΔABC, if C is a right angle, what is the measure of x?
Answer:
x ≈ 72.3°
Step-by-step explanation:
using the cosine ratio in the right triangle
cos x = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{7}{23}[/tex] , then
x = [tex]cos^{-1}[/tex] ( [tex]\frac{7}{23}[/tex] ) ≈ 72.3° ( to the nearest tenth )
A 3% fee is taken out of an initial amount of $3,460, and then a $100 fee is taken after that, leaving a new amount of
Answer:
turn 3% into decimal by diving 3 by 100
3/100=0.03
0.03X3460=103.80
3460-103.80=3356.20
3356.20-100=3256.2
The heights of two groups of students in different grades are shown in the box-and-whisker plot below.
Which statement correctly compares the two data sets?
A.
The range of group A is less than the range of group B.
B.
The median of group A is less than the median of group B.
C.
The interquartile range of group A and group B is the same.
D.
The first quartile of group A is greater than the first quartile of group B.
Answer:
D
Step-by-step explanation:
The first quartile of group A is greater than the first quartile of group B.
Joe opened a bank account with $80. He then withdrew $35 and deposited $115. What is his account balance after these transactions?
$__
Answer
[tex]160[/tex]
Explanation
Based on the given conditions, formulate: [tex]115+80-35[/tex]
Calculate the sum or difference: [tex]195-35[/tex]
Calculate the sum or difference: [tex]160[/tex]
get the result: [tex]160[/tex]
Answer: [tex]160[/tex]
Answer:
$ 160
Step-by-step explanation:
80 -35 +115 = 160
Find the diameter of a circle with a
circumference of 63 ft.
Answer:
20ft
Step-by-step explanation:
circumference of a circle in terms of diameter has the formular
C = πd
63 = 3.142×d
d= 63/3.143=20.050
diameter= 20ft
PLEASE HELP ME
Select the correct answer. Which stem and leaf plot represents the given data set?
Answer:
i think its x
Step-by-step explanation:
it looks simple yet intimidating
Clara visits the aquarium
from her hotel. She walks á mile to the bus stop, takes the bus for
or 1
miles, and walks the rest of the way to the aquarium.
How far did Clara walk after getting off the bus?
Answer:
The total distance walked to the aquarium is 1/2 miles.
Step-by-step explanation:
What distance did she walk? Distance walked = 2 1/2 - (1/4 + 1 3/4) = 2 1/2 - 2 =1/ 2 miles
(PLEASE HELP) Select the correct answer.
Yuri surveyed randomly selected middle school students in his neighborhood. He found that around 60% of them plan to participate in a charity walk organized by the town council. What is the estimated probability that it will take at least six middle school students to find one who doesn't plan to participate in the charity walk?
Use the table of simulated values to answer the question. The numbers 0 to 5 represent middle school students planning to participate in the charity walk, and 6 to 9 represent those who are not planning to participate.
7 1 0 7 8 8 8 5 3 0 3 0 0 5 7 3 8 5 4 6 5 6 6 4 2
9 3 0 7 7 9 2 5 4 4 5 4 0 2 8 4 8 3 9 8 4 0 0 8 1
4 4 4 1 4 7 0 2 7 3 8 9 3 9 8 5 2 4 7 6 7 6 1 7 1
9 3 4 7 2 4 5 4 3 2 2 6 6 2 6 3 8 5 3 2 7 5 9 6 2
9 5 4 2 7 1 5 7 1 1 8 8 4 4 1 1 0 2 0 4 5 0 5 1 6
5 1 3 0 6 8 3 3 1 6 2 0 6 9 5 3 1 5 4 2 6 2 5 6 9
7 0 8 4 9 5 8 0 0 1 6 6 2 2 4 8 1 8 7 9 4 4 8 7 7
9 6 7 8 7 2 8 6 0 8 1 0 4 6 8 1 8 3 1 7 2 2 4 2 6
6 0 7 0 2 3 6 4 3 0 1 8 2 5 7 5 5 5 1 8 3 8 9 7 7
5 6 7 2 5 8 4 3 5 1 7 8 6 0 5 6 1 9 3 6 3 1 1 0 5
A.
0.02
B.
0.10
C.
0.30
D.
0.60
Answer:
The answer is C (0.30) are NOT going to particulate
Step-by-step explanation:
We can find the answer by simply putting all of the results into order, which gives the following for the non-participants:
28: 6's
27: 7's
29: 8's
15: 9's
Now to find the answer, we must know the total amount of results, which I found to be 250. We also need to know the total amount of non-participants there are, which is 99. So if we take 99 and divide it by 250 (99/250); we get 0.396. Although this isn't the exact answer, it is the closest.
To further prove that this should be right, Yuri found 60% of students to participate, which leaves around 40% left to not participate. So this should be right.
Hope this helps! - SC
(Let me know if it's wrong so I can change my answer if needed).
Find P(B|C). P(B|C) = StartFraction 9 Over 34 EndFraction = 0. 26 P(B|C) = StartFraction 9 Over 24 EndFraction = 0. 38 P(B|C) = StartFraction 9 Over 70 EndFraction = 0. 13 P(B|C) = StartFraction 9 Over 58 EndFraction = 0. 16.
The question is an illustration of probability, and the value of P(B|C) is P(B|C) = 9/24 =0.38
How to determine the probability P(B|C)?The table is given as:
C D Total
A 15 21 36
B 9 25 34
Total 24 46 70
The probability (BIC) is calculated using:
P(B|C) = n(B and C)/n(C)
From the table, we have:
n(B and C) = 9
n(C) = 24
So, the equation becomes
P(B|C) = 9/24
Evaluate
P(B|C) = 0.38
Hence, the value of P(B|C) is P(B|C) = 9/24 =0.38
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Answer:
B
Step-by-step explanation:
just did it
what’s the area and the perimeter and of the triangle?
Answer:
A: 7.75 meter square
P: 16m
Step-by-step explanation:
Area: Formula : Take Base x Height then divided by 2
Perimeter: Formula : Add up all the exterior side of the triangle
Hope it helped
Have a nice day of studying :>
whats the square root of 55
Answer:
7.4161984871
Step-by-step explanation:
7.4161984871x7.4161984871=55
Answer:
3025
Step-by-step explanation:
Suppose A< - 1 what must be true about the value of b so that ab< a
Answer:
b must be positive
Step-by-step explanation:
if a is less than -1
that means to get smaller numbers
b needs to be positive
so that when a is multiplied by b you would have
numbers that are more negative
Answer:
b > 1
Step-by-step explanation:
Given:
a < -1 ab < aSubstituting a = -1 into ab < a
⇒ (-1)b < -1
⇒ -b < -1
⇒ b > 1
If a < -1 then a is negative. If ab < a then ab is also negative.
In order for ab to be negative (when a is negative) b must be positive.
For ab < a then b > 1.
Proof
If b = 0.5 and a = -1.5 then ab = -0.75
As -0.75 > -1.5 then ab > a so this cannot be true.
If b = 1.5 and a = -1.5 then ab = -2.25
As -2.25 < -1.5 then ab < a so this is true.
Therefore b > 1
A medical sales representative of a certain antibacterial cream ask people who visited their kiosk whether they have tried to use their brand before. What sampling technique was used in this situation?
Cluster Sampling
Volunteer Sampling
Stratified Sampling
Simple Random Sampling
The sampling technique that was used in the situation is (d) Simple Random Sampling
How to determine the sampling technique?From the question, we understand that all people that visited the kiosk were asked the same question.
The people that visited the kiosk have equal chance of being selected.
This type of selection or sampling is a simple random sampling
Hence, the sampling technique that was used in the situation is (d) Simple Random Sampling
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Logan has x twenty-dollar bills and 1 fifty-dollar bill. How much money does Logan have? Write your answer as an expression,
Answer:
Logan has 20x + 50 dollars.
Hope this helps!
Answer:
20x+50
Mark brainliest :)
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
=
Step-by-step explanation:
lcm = 8 so you multiply the numerator of 2 1/2 1 x 4 = 4 4 is your numerator and 8 is your denominator 2 4/8 = 2 4/8 you can simplify to 2 1/2 too
Answer:
2 4/8 = 21/2 Equal To =
Step-by-step explanation:
2 4/8
Also equal to 2 1/2
Since reducing fractions 4/8 simplified is 1/2
2 4/8 = 21/2
Which graph represents the solution of y > x2 + 2?
The graph that represents the solution of y>x²+2 is given below.
The given inequality is y>x²+2.
We need to identify which graph represents the solution of y>x²+2.
What is an inequality graph?Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that the line is included in the region.
For example, this graph shows inequality. This can be seen as there is a dashed line, and the region where the coordinates are less than -1 is shaded.
Graph the inequality by finding the boundary line, and then shading the appropriate area.
Put x=0, 1, 2, 3,....in the inequality and solve for y.
We get y=2, 3, 6, 11,...
The graph that represents the solution of y>x²+2 is given below.
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Answer:
I did it and got it correct
Step-by-step explanation:
6. Interest is compounded semianually. Find the amount in the account after the given time.
The amount in the account after the given time if compounded semiannually is $1104.2
Compound interestInterest is any amount added on a sum of money over a period of time. The formula for calculating the compound interest is:
A = P(1+r/n)^nt
Given
P = $1000
rate r = 0.05
time =3years
n = 2
Substitute
A = 1000(1 + 0.05/3)^3(2)
A= 1000(1.1042)
A = $1104.2
Hence the amount in the account after the given time if compounded semianually is $1104.2
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