Answer:
The answer is: √63=√32⋅7=√32⋅√7=3√7 .
Step-by-step explanation:
Think about a population mean that you may be interested in and propose a hypothesis test problem for this parameter. Gather appropriate data and post your problem, Later, respond to your own post with your own solution. For example, you may believe that the population mean number of times that adults go out for dinner each week is less than 1.5. Your data could be that you spoke with 7 people and found that they went out 2, 0, 1, 5, 0, 2, and 3 times last week. You then would choose to test this hypothesis at the .05 (or another) significance level. Assume a random sample.
Required:
Test this hypothesis at the 0.05 significance level.
Answer:
There is no sufficient evidence to conclude that population mean number of times that adults go out for dinner each week is less than 1.5
Step-by-step explanation:
From the question we are told that
The population mean is less than 1.5
The sample size is n = 7
The sample data is 2, 0, 1, 5, 0, 2, and 3
Generally the sample mean is mathematically represented as
[tex]\= x = \frac{ \sum x_i }{ n }[/tex]
=> [tex]\= x = \frac{ 2 + 0 + 1 + 5 + 0 + 2 + 3 }{ 7 }[/tex]
=> [tex]\= x = 1.857 [/tex]
Generally the standard deviation is mathematically represented as
[tex]\sigma = \sqrt{\frac{\sum (x_i - \= x)^2}{n} }[/tex]
=> [tex]\sigma = \sqrt{\frac{ (2 - 1.857)^2 + (0 - 1.857)^2 +\cdots (3 - 1.857)^2}{7} }[/tex]
=> [tex]\sigma = 1.773[/tex]
The null hypothesis is [tex]H_o : \mu = 1.5[/tex]
The alternative hypothesis is [tex]H_a : \mu < 1.5[/tex]
Generally the test statistics is mathematically represented as
[tex]z = \frac{\= x - \mu }{ \frac{\sigma }{\sqrt{n} } }[/tex]
=> [tex]z = \frac{\= x - 1.857 }{ \frac{1.773 }{\sqrt{7} } }[/tex]
=>[tex]z = 0.53[/tex]
Generally the p-value is mathematically represented as
[tex]p-value = P(z < 0.53 )[/tex]
From the z-table
[tex]P(z < 0.53 ) = 0.70194[/tex]
So
[tex]p-value = 0.70194[/tex]
From the values obtained we see that [tex]p-value > 0.05[/tex]
Here there is no sufficient evidence to conclude that population mean number of times that adults go out for dinner each week is less than 1.5
HELP Pllllllzzzzz
thank you have a great day
Answer:
use google that is what I do. it is a good
let their number of sides of a regular polygon is 6 in its radius is 5,then find the length of the side.
Step-by-step explanation:
area = n * a * ri / 2 , having ri - incircle radius (it's also an apothem - a line segment from the center to the midpoint of one of its sides) area = perimeter * ri / 2 , given ri and polygon perimeter.
What is the midpoint of AB?
A (-2,5) B ( 3,-3)
midpoint= ((-2+3)/2), ((5+(-3)/2)
= (0.5),(1)
Guys what is the definition of consecutive numbers? Anyone know? 20 points for first answer!!
They are integers that follow one right after another. For example the set {1,2,3,4,5} represents consecutive numbers. Another example would be {9,10,11,12,13}
In general, if x is some integer, then x+1 is the next integer right after x, and x+2 is right after x+1 and so on. The list is {x, x+1, x+2, x+3, ...} representing any general set of consecutive numbers.
a) (-2) + (-3) + (+2)=
b) (3) + (-3) + (-5)=
c) (1) + (8) + (-2)=
d) (5) + (-8) + (-1)=
e) (-6) + (-2) + (1)=
f) (-8) + (6) + (-2)=
g) (-7) + (6) + (-2)=
h) 6 + (-6) + (-7)=
i) -6 + (9) + (-4)=
j) (-4) + 2 + 4 + (1)=
Answer:
The answer is G and also your welcome
Step-by-step explanation:
slove for x
21/x = 6/8
Answer: x=28
Step-by-step explanation:Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation
Answer:
x=21/68
I think that might be the answer
Write as an inequality: You have at least as many dogs as cats. (Someone please help me)
Answer:
d ≥ c
Step-by-step explanation:
Answer:
dogs ≥ cats
Step-by-step explanation:
Brainly if right!!!!!! Plus 15 points
a recipe that makes 4 servings calls for 2/3 cup of flour how much flour is required to make 20 servings
Answer:
3 1/3
Step-by-step explanation:
If 4 servings calls for 2/3 cup of flour, you need to multiply both by five to make 20 servings:
4 x 5 = 20
[tex]\frac{2}{3}[/tex] x 5 = [tex]\frac{10}{3} or 3\frac{1}{3}[/tex]
Answer:
3 1/3
Step-by-step explanation:
took the test
A college cafeteria pays student cashiers $7.70 per hour. Cashiers earn an additional $1.70
per hour for each hour worked over 35 hours per week. A cashier worked 41 hours one
week and 39 hours the second week. How much did this cashier earn in this two-week
period?
Answer:
$633
Step-by-step explanation:
Overtime:
(41 - 35 + 39 - 35) hours = 10 hours
Overtime rate: ($7.70 + $1.70)/hour = $9.40/hour
Regular time:
(35 + 35) hours = 70 hours
Regular rate: $7.70/hour
total pay = regular pay + overtime pay
total pay = $7.70/hour × 70 hours + $9.40/hour × 10 hours
total pay = $633
A family of 4 brothers is to be seated in a row at a theatre. How many seating arrangements are possible? Identify if the situation involves combinations or permutations
Answer:
its 24 permutations
Step-by-step explanation:
i just finished a test
There are 24 different ways 4 students can be arranged in a row.
What is permutation?A permutation in math is the number of ways in which a set of data or objects can be ordered or arranged, where the order matters.
Given that, a family of 4 brothers are to be seated in a row at a theatre,
We need to determine the order of the possible seating arrangements,
we conclude that there are =
1! x 2! x 3! x 4! = 24
different ways 4 students can be arranged in a row,
Hence, there are 24 different ways 4 students can be arranged in a row.
Learn more about permutation, click;
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Find the volume of a right circular cone that has a height of 4.1 cm and a base with a diameter of 14.8 cm. Round your answer to the nearest tenth of a cubic centimeter.
Answer:
[tex]V=235.1\ cm^3[/tex]
Step-by-step explanation:
Volume of a Cone
The volume of a right circular cone with height h and a base radius r is:
[tex]\displaystyle V=\frac{1}{3}\pi r^2 h[/tex]
The height of the given cone is h=4.1 cm and its diameter is d=14.8 cm. Since the radius is half the diameter, r=7.4 cm.
Calculate the volume:
[tex]\displaystyle V=\frac{1}{3}\pi\cdot 7.4^2\cdot 4.1[/tex]
[tex]\displaystyle V=\frac{1}{3}\pi\cdot 54.76\cdot 4.1[/tex]
[tex]\displaystyle V=\frac{1}{3}\pi\cdot 224.516[/tex]
[tex]\boxed{V=235.1\ cm^3}[/tex]
what is the area? please help. this would be my last question
Answer:
242
Step-by-step explanation:
Rectangle= 22*11= 242
Triangle= [tex]\frac{4*3}{2} =6[/tex]
242+6=
248
Which of the following would result in an integer?
a.) 110
b.) 92
c.) 100
d.) 60
Answer:
All choices are integers.
Step-by-step explanation:
All choices shown are integers.
A toy is marked up 25% from the original price, x.
Write two expressions to find the price of the
item after the discount.
Step-by-step explanation:
amount increased to the toy = y
new price of the toy after adding markup = z
y= ( ( 25/100) × X )
therefore z= x+y
Theo is driving with his mom to Paso Robles. It took Theo 4 hours to drive 228 miles. Lex drove with his dad to San Luis Obispo. Lex drove 186 miles in 3 hours. a. How far does Theo drive in 1 hour? How far does Lex drive in 1 hour? b. Who drove faster? Explain how you know.
Answer:
A. Theo drove 57 miles and Lex drove 62 miles in 1 hour.
B. Lex drove faster. We know this because in order to figure out how many miles each drove per hour you need to find there individual rate. Which is 228/4 and 186/3. You want to divide using the hours so you generate a response where 1 hour is the only thing left. Thus giving you mph (miles per hour). Lex is drove 5 miles more in an hour than Theo leading us back to who drove faster. Lex did.
Hope this helps!
Hello Can Someone Please Answer This Question I Will Mark You The Brainliest
I will tackle this problem by dividing the figure into 4 visible rectangles and 1 L shaped figure which i will add together to get the total area.
Rectangle (1)= h×w =4×5=20 cm²
Rectangle (2)= h×l =4×5=20 cm²
Rectangle (3)= h×l =4×5=20 cm²
Rectangle (4)= h×w =4×5=20 cm²
L-shaped polygon which i will divide into 2 parts
Part 1's area: l×w= 5×5=25 cm²
Part 2's area: l×w= 10×5=50 cm²
Total area=(20+20+20+20+25+50)
Total area=155 cm²
Which expressions are polynomials?
Select each correct answer.
answer:35x^2
Step-by-step explanation:
the first one is not b/c its x/5
the second one is not b/c has a square root
the last one it has negative exponents
Answer:
Step-by-step explanation:
By definition, the power of each term in a polynomial must be greater than or equal to 0.
So x/5+2 is a polynomial
4x+sqrt(x)-1 is not because sqrt(x) is x^(1/2)
35x^2 is a polynomial
7x^7-x^(-5) is not because -5 is less than 0.
Find the slope of line whose end points are (2,-5) and (4,-7)
Answer:
m = -1Step-by-step explanation:
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\\\\\left(x_1,\:y_1\right)=\left(2,\:-5\right),\\\:\left(x_2,\:y_2\right)=\left(4,\:-7\right)\\\\m=\frac{-7-\left(-5\right)}{4-2}\\\\m = \frac{-7+5}{4-2}\\ \\m = \frac{-2}{2}\\ \\Simplify\\\\m =-1[/tex]
Nhat number makes the equation true? Enter the answer in the box.
3 = 12:
I WILL MARK BRAINLIST!!!
Answer: There isn't really anything to solve
So I guess, 3 would make the equation true. But, 12 would also make it true as well.
please help me A portion of Taquan's check register is shown. Before Taquan made his utility payment on March 24, the balance of his account was $1,094.80.
The check register is used to show the total amount Taquan spent
Using the assumed values, Taquan's initial balance is $1336.26
How to determine the amount before making the utility payment?The question is incomplete, as the check register is not shown.
So, I will give a general explanation
Assume that the utility bill is $241.46
From the question, the new balance on March 24 is $1094.80
This means that the initial balance is:
Initial balance = New balance + Utility bill
This gives
Initial balance = $1094.80 + $241.46
Evaluate the sum
Initial balance = $1336.26
Using the assumed values, Taquan's initial balance is $1336.26
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Cary hiked 18 miles in 6 hours. If he continues at the same pace, how much farther can he hike in the next 2 hours?
Answer: I believe the answer is 6 miles.
Step-by-step explanation: Its states Cary hiked 18 miles in 6 hours. If you divide 18 by 6, you get the answer 3. This means that 6 multiplied by 3 will give you 18, so just do the same to the number 2. Two multiplied by 3 gives you 6.
For every 15 bicycles seen in Harlem, there were 60 cars. How many cars will we need for 33 bicycles?
Answer:
132 bicycles
Step-by-step explanation:
The ratio of bicycles to cars is 15:60. Before anything, we need to simplify this ratio. 15/15 = 1, and 60/15 = 4. So, now we have 1:4. Since the question asks for 33 bicycles, we multiply the number of bicycles, 1, by 33. Since we are multiplying the bicycles, we also need to multiply the cars. 4 x 33 = 132.
33:132. We need 132 cars.
Madeline bought a hybrid car that averages 46 miles per gallon. How much gas will she need for a 350-mile trip? Select the equation and the solution (2 answers).
Group of answer choices
350 x 46 = n
46n = 350
approximately 7.61 gallons
approximately 8.75 gallons
Answer:
46n = 350approximately 7.61 gallonsStep-by-step explanation:
1 gallon = 46 miles
350 miles = 350 ÷ 46
46n = 350=7.60869565217 gallons
approximately 7.61 gallonsThe sum of two numbers is -32. One number is 2 less than the other.
The numbers whose sum is negative 32 will be negative 15 and negative 17.
What is the solution to the equation?The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.
The sum of the two numbers is -32. One number is 2 less than the other.
Let the two numbers be x and y. Then the equation is given as,
x + y = - 32 ...1
x = y - 2 ...2
From equations 1 and 2, then the value of y will be
y - 2 + y = - 32
2y = - 30
y = - 15
Then the value of x will be given as,
x - 15 = - 32
x = - 17
The numbers whose sum is negative 32 will be negative 15 and negative 17.
More about the solution of the equation link is given below.
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Solve the equation. y+18=29
Check your solution using substitution.
Group of answer choices
y=47
y=522
y=11
y=523.6
Answer:
y= 11
Step-by-step explanation:
When you work out the problem, you will see that y = 11.
Answer:
y=11
Step-by-step explanation:
You do:
y+18-18=29-18
y=11
I need help on this question!
What is the equation of a line parallel to y=7x-8 that passes through (5, -2)?
Answer:
The required line is Parallel to y = 7x - 8
This means their slopes are equal
So m = 7
Now writing the equation of straight line,
[y - (-2)] = m(x - 5)
y + 2 = 7(x - 5)
y + 2 = 7x - 35
7x - y - 37 = 0
Hope This Helps Y
8 is greater than x, and 4 is less than or equal to x
Rude, we don't use such an answers here. Change it, please.
pls change it
hope.u understand
3. A warehouse holds 7,140 shoeboxes. Each aisle holds the same number of
boxes. How many aisles could there be?
a. 9
b. 4
c. 5
d. 6
4. A day care center has 66 children. Each teacher has the same number of
children. How many children could each teacher at the center have?
a. 9
b.4
c. 5
d. 6
5.630 employees work in an office building. The exact same number of employees
work on each floor. How many floors could the building have?
a. 6
b. 4
c. 10
d. 9
Answer:
1) b, c, d
2) d
3) a, c, d
Step-by-step explanation:
Just find the number that can divide by the whole. Say the question was
A pet shop have 20 pets. The same amount of pets are in each room. How many rroms could there be?
If there were 4 rooms, 5 pets would be in each. 20÷4=5. 4 goes into 20 so 4 could be an answer.
If there were 3 rooms, 6 rooms would have 3 pets and 2 would be left over. So it wouldn't work. You just need to find the number that goes into the whole with no remainder.