Answer:
why in kilometers? 87.3 km/h
In the context of a hypothesis test for two proportions, which of the following statements about the pooled sample proportion, , is/are true? I. It estimates the common value of p1 and p2 under the assumption of equal proportions. II. It is obtained by averaging the two sample proportions 1 and 2. III. It is equal to the proportion of successes in both samples combined.
Answer:
The statements that are true about a hypothesis test for two proportions are:
I. It estimates the common value of p1 and p2 under the assumption of equal proportions.
II. It is obtained by averaging the two sample proportions 1 and 2.
Step-by-step explanation:
We use the two sample proportion z-test to determine whether the proportions of the two groups differ. This test calculates the range of values that is likely to include the differences between the sample proportions of p1 and p2.
What is the value of y in the solution to this system of equations?
y=3-2x/2
4x-6y=36
Answer:
idekqwarwera
Step-by-step explanation:
Question
You flip a coin 10 times and get heads 6 times. Based on this experiment, what is the probability of flipping a coin and
getting heads?
Select the correct answer below:
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What’s the measure for x
Help me please thank you so much if you did
Answer:
I just answed this question today!Your asnwer is 144.
Step-by-step explanation:
1:5:3
48 total.
Divide 48 and get 16
Multiply 16 x1
Multiply 16 x5
Multiply 16x 3
16:80:48
SOMEONE PLEASE HELP NOW ILL GIVE YOU A EAST 11 POINTS
What is the value of the expression 2106÷162?
Answer:
Hi
it will be 13
What is 6 pounds equal to in ounces?
Answer:
96
Step-by-step explanation:
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Answer: 96 ounces
Step-by-step explanation:
1 pound = 16 ounces
1 x 6 = 6 pounds
16 x 6 = 96 ounces
So in conclusion, 6 pounds = 96 ounces.
Hope this helps!
Which is the correct answer?
A. Function f is both even and odd
B. Function F is odd
C. Function f is neither even or odd
D. Function f is even
(Please explain your answer)
Answer:
B. Function F is odd
Step-by-step explanation:
If a function is odd, then -f(x) = f(-x), for all values of x.
For such function an origin symmetry is obtained just like the image uploaded.
Also, for such function, there is an equal distance between f(x) and f(-x), just like the image uploaded (d₁ = d₂).
Thus, the correct option is "B"
A restaurant sells coffee refill mugs for $5.75. Each refills
costs $1.50. Last month James spent $24.50 on mug and refill
Write an equation you can find the number of refills James bought.
Let, r, represent the number of refills.
What is the major difference between mutual funds and certificates of deposit? How are mutual funds and certificates of deposit alike? What is the major difference in bonds and treasury notes, and which would you prefer as an investor? How are bonds, treasury notes, mutual funds alike?
Answer:
Mutual funds differ from CDs in a multitude of ways. Mutual funds are diversified portfolios of stocks and bonds managed by a financial advisor or broker. They typically offer substantially higher returns than CDs, and while they are riskier than CDs, they are not considered high risk investments.
6
The formula for the volume of a cylinder is as follows, where V is the volume of the cylinder, r is the radius of the base, and l is the length of the cylinder.
V=\pi r^2lV=πr
2
l
Solve for l in terms of V and r then find the length of a cylinder that has a volume of 1256 cubic inches and whose base has a radius of 7 inches. Round your answer to the nearest tenth of an inch; use 3.14 for π.
Answer:
8.2 inStep-by-step explanation:
Volume formula:
V = πr²lSolving for l:
l = V/(πr²)Length of the given cylinder:
l = 1256/(π7²) = 1256/(3.14*49) = 8.2 in rounded8.2 in is the correct answer to the question
6
The formula for the volume of a cylinder is as follows, where V is the volume of the cylinder, r is the radius of the base, and l is the length of the cylinder.
V=\pi r^2lV=πr
2
1. Is an arithmetic sequence a function?
Sometimes, it depends on the arithmetic sequence.
Yes, always.
Not enough information is given.
No, never
Yes, always.
A sequence is a function that takens a positive integer and maps it some other number. For any integer you plug into the sequence, you only ever get one output.
Order the following expressions by their values from least to greatest.
PLEASE ANSWER NOW FOR TESTT!!!
Answer:
l , k , j
Step-by-step explanation:
j is near to 1 so, j has greatest value
k has second great value
l has negative value
So,
l has least value also negative value.
Is (x + 5) a factor of f(x) = x3 − 4x2 + 3x + 7?
Answer:
no
Step-by-step explanation:
here, f (x)=x^3 - 4x^2 + 3x + 7
when, factor is (x + 5)
x - a =x + 5
a = -5
Reminder= f (a)
= (-5)^3 - 4 (-5)^2 + 3×(-5) + 7
= -233
Since Reminder = -233 which is not 0 .
(x + 5) is not a factor of f (x)=x3-4x2+3x+7
Are the ordered pairs below an arithmetic sequence or geometric
sequence?
(1,55)
(2, 45)
(3, 35)
(4, 25)
Answer:
the answer is (2, 45) geometric
Jonas earns tips serving customers in a restaurant. He uses a certain method to correctly determine a tip of 20% of the cost of a meal. If c is the cost of a meal, which of the following can be the method Jonas uses?
A.
Move the decimal point two places to the right, and then double that amount.
B.
Move the decimal point one place to the right, and then double that amount.
C.
Move the decimal point two places to the left, and then double that amount.
D.
Move the decimal point one place to the left, and then double that amount.
Answer:
b
Step-by-step explanation:
A researcher comparing the means of dependent samples consisting of 30 matched pairs and obtained a mean difference of 5 and a standard error of the mean difference of 2. The confidence interval for the mean difference was (1.6, 8.4). What confidence level was used in constructing the interval
Answer:
91.08%
Step-by-step explanation:
Confidence interval = (1.6, 8.4)
Sample size (n) = 30
Standard Error (E) = 2
Mean (m) = 5
The confidence interval is obtained using the relation :
Mean ± Zcritical * standard error
5 ± Zcritical * 2
5 - (Zcritical * 2) = 1.6
5 - 2Zcritical = 1.6
5 - 1.6 = 2Zcritical
3.4 = 2Zcritical
Zcritical = 3.4 / 2
Zcritical = 1.7
From Z probability calculator
P(Z < 1.7) = 0.044565
α = 1 - (0.044565 * 2) = 0.91087
0.91087 * 100% = 91.08% = 91%
Hence, confidence level = 91.08%
Sin(0)= cos(6) what is the value of 0?
We need to find Ο for : sin(Ο)= cos(6)
We know that:
cos θ =sin (90 - θ), so if we call θ = 6 then O will be:
O = 90 - θ
O = 90 - 6
O = 84The value of 0 is 84.
Given that,
Sin(0)= cos(6).
Based on the above information, the calculation is as follows:
cos θ =sin (90 - θ),
So in the case when θ = 6
So, O will be
O = 90 - θ
O = 90 - 6
O = 84
Learn more: brainly.com/question/17429689
What is the value of y in the solution to this system of equations?
4x - 2y = 14
3x + y = 3
Ay = 3
By=-2
C y = 2
Dy=-3
Answer:not clear
Step-by-step explanation:
Multiply. (2.1 X 10/2) X (3.5 X 10/5)
we first solve each bracket
we can write 2.1 as 21/10 and 3.5 as 35/10
(21/10x10/2)x(35/10x10/5)
the 10's simplify
21/2x35/5=21/2x7=147/2=73.5
A researcher wants to know how business owners in her state feel about employee healthcare coverage. She obtains a list of 2386 business owners in her state, selects 800 of them at random, and emails a questionnaire to them. 171 questionnaires are returned Of these, 77% stated that they believe that the current employee healthcare coverage mandate needs to be completely overhauled. Classify the following groups as the population or the sample for this particular study. If a group does not belong in either category, leave it unplaced. Population Sample Answer Bank the 171 business owners who returned the questionnaire the proportion of all business owners in he researchers state who believe hat he curren en o ee he care c еґа e mandate eeds to be completely overhauled all business owners in the researcher's state all business owners the 800 business owners who were randomly chosen the 2386 business owners whose names were obtained the 77% who stated that the current employee healthcare coverage mandate needs to be completely overhauled
Answer:
Classification of groups as the population or the sample:
Population:
the 2386 business owners whose names were obtained
Sample:
the 800 business owners who were randomly chosen
Step-by-step explanation:
The population in research is the comprehensive group with common characteristics, which the researcher is interested in studying. The sample is a subset or a representative of the common group, which the researcher selects to study. The sample is, therefore, a part of the population.
(-8x + 2) + (-5x + 7)
Answer:
Step-by-step explanation:
(-8x + 2) + (-5x + 7)
-8x + 2 - 5x + 7
- 13x + 9
Estimate the sum.
10 1/9 + 5 14/15
(4 points) A tank initially contains 50 gallons of brine, with 30 pounds of salt in solution. Water runs into the tank at 6 gallons per minute and the well-stirred solution runs out at 5 gallons per minute. How long will it be until there are 25 pounds of salt in the tank
you look like a dung beetle rolling up a hunk a sh^t
A bouquet of flowers contains 46 flowers and half of them are roses. How many of the flowers are not roses? *
can someboby plz help
Answer:
23
Step-by-step explanation:
what is the sum of the fractions?
3/8+1/6
Complete the congruence statement by naming the corresponding angle or side.
50 Points
Step-by-step explanation:
Triangles WXY and RPY are congruent.
Since letters X and P are both the 2nd letter in their respective triangles, angle X = angle P (A).
2 3/8 x 1/2 PLEASE ILL GIVE BRAINLIEST
Answer:
1 3/16
Step-by-step explanation:
Answer:
1.1875 or 1 3/16
Step-by-step explanation:
you just put it into a calculator
Samuel rode his bicycle down the street. The distance he traveled in time was recorded. What equation best represents the data in the table?
y = -5x + 10
y = 5x
y = 5x + 10
y = -5x
Answer:
Step-by-step explanation:
Y=5x
Answer:
2nd one
Step-by-step explanation:
X^2 + 1/2x + _ =2 + _
Answer:
0.5x x (2x+1)Step-by-step explanation: