Answer:
1378.54
Step-by-step explanation:
First multiply 12 by 4. You get 48 then divide it by 2 and You get 24. divide 33085 by 24 and you get 1378.54.
Triangles are 3 sided polygon's. true or false?
True Triangles are 3 sided polygon's
A manufacturer of running shoes knows that the average lifetime for a particular model of shoes is 15 months. Someone in the research and development division of the shoe company claims to have developed a longer lasting product. This new product was worn by 25 individuals and lasted on average for 17 months. The variability of the original shoe is estimated based on the standard deviation of the new group which is 5.5 months. Is the designer's claim of a better shoe supported by the trial results?
Answer:
The decision rule is
Fail to reject the null hypothesis
The conclusion is
There is no sufficient evidence to show that the designer's claim of a better shoe is supported by the trial results.
Step-by-step explanation:
From the question we are told that
The population mean is [tex]\mu = 15 \ months[/tex]
The sample size is n = 25
The sample mean is [tex]\= x = 17 \ months[/tex]
The standard deviation is [tex]s = 5.5 \ months[/tex]
Let assume the level of significance of this test is [tex]\alpha = 0.05[/tex]
The null hypothesis is [tex]H_o : \mu = 15[/tex]
The alternative hypothesis is [tex]H_a : \mu > 17[/tex]
Generally the degree of freedom is mathematically represented as
[tex]df = n -1[/tex]
=> [tex]df = 25 -1[/tex]
=> [tex]df = 24[/tex]
Generally the test statistics is mathematically represented as
[tex]t = \frac{\= x- \mu }{\frac{s}{\sqrt{n} } }[/tex]
=> [tex]t = \frac{ 17 - 15 }{\frac{5.5}{\sqrt{25} } }[/tex]
=> [tex]t = 1.8182[/tex]
Generally from the student t distribution table the probability of obtaining [tex]t = 1.8182[/tex] to the right of the curve at a degree of freedom of [tex]df = 24[/tex] is
[tex]p-value = P(t > 0.18182 ) = 0.4286[/tex]
From the value obtained we see that [tex]p-value > \alpha[/tex] hence
The decision rule is
Fail to reject the null hypothesis
The conclusion is
There is no sufficient evidence to show that the designer's claim of a better shoe is supported by the trial results.
Solve an equation. 24 kg = ___ g
Answer:
24000 regular grams
Answer: 24000
Step-by-step explanation: because you have to multiply the mass value by 1000
A psychology teacher gave a test to 200 students, and, after seeing the results, decided that the scores were
normally distributed. The mean score was 60, and the standard deviation was 10. How many students had scores
between 40 and 80?
Answer:
Step-by-step explanation:
66-95-99.7 rule
standard deviation is 10. meaning that it'll deviate twice meaning you use the 95%
95% of 200 is 190, so 190 students had scores between 40 and 80
Which of the following could be parallel to y=4?
Answer:
y=0
Step-by-step explanation:
34
x 56
show your work and solve the equation
Answer:
1,904
Step-by-step explanation:
Multiply the bolded number first
34
x 56
----------
204
Multiply the 2nd group of bolded number
34
x 56
----------
170
Add 0 as a place holder
34
x56
---------
204
1700
Add the 2 answers together
1700
+ 204
-----------
1.904
Hopefully that helped!!!!
plz help me thanks very nuch whoever helped me
Answer:
(1) 56 miles/hour
Step-by-step explanation:
We need to find the average rate of change from t = 2 to t = 9.
At t = 2 hours, d = 106 miles.
At t = 9 hours, d = 498 miles.
The average rate of change in function f(x) from x = a to x = b is
[f(b) - f(a)]/(b - a)
average rate of change from t = 2 to t = 9 =
(498 - 106)/(9 - 2) = 392/7 = 56
Answer: (1) 56 miles/hour
Which of the following statements regarding Pascal's triangle are correct?
A. The coefficients of (x + y)" are given by the nth row of Pascal's
triangle.
B. Each row is a "palindrome" – that is, it is the same if read from
left to right or from right to left.
C. The nth row gives the coefficients in the expansion of (x + y)21.
D. To generate Pascal's triangle, add adjacent terms on a row to
determine the term directly below them.
Answer: PLEASE READ: The coefficients of (x + y)n are given by the nth row of Pascal's triangle. To generate Pascal's triangle, add adjacent terms on a row to determine the term directly below them. Each row is a "palindrome"- that is, it is the same if read from left to right or from right to left.
Step-by-step explanation: A P E X
Marie can find the volume of a cube by using the formula V = s³, where s represents the side length of the cube. If Marie’s cube has a side length of 2 1 2 centimeters, what is the volume of her cube? Show your work. Write your answer as a fraction and a decimal.
Answer: 7 1/2 cubic cm
Step-by-step explanation:
Evaluate the expression: 2{ a( 2b + 3c)} for a=8, b=3, and c=4
Answer:
288
Step-by-step explanation:
Evaluate Using the Given Value
2 (a (2b + 3c)) for a = 8 , b = 3 , and c = 4
Replace the variable a with 8 in the e xpression.
2 ((8) (2b + 3c))
Replace the variable b with 3 in the expression.
2 ((8) (2 (3) + 3c))
Replace the variable c with 4 in the expression.
2 ((8) (2 (3) + 3 (4)))
Simplify each term.
Multiply 2 by 3.
2 (8 (6 + 3 (4)))
Multiply 3 by 4.
2 (8 (6 + 12))
Simplify the expression. Tap for fewer steps...
Add 6 and 12.
2 (8 ⋅ 18)
Multiply 8 by 18.
2 ⋅ 144
Multiply 2 by 144.
288
convert 6¼ % to fraction
Answer:
[tex]\frac{1}{16}[/tex]
Step-by-step explanation:
[tex]6\frac{1}{4}=\frac{25}{4}[/tex]
since percent means divided by 100
[tex]\frac{25}{4} *\frac{1}{100}[/tex]
=[tex]\frac{1}{16}[/tex]
Answer:
1/16
Step-by-step explanation:
625/10000
(a) What percent of 76 is 19?
(b) 68 is 85% of what?
Answer:
A. 25
B. 80
Step-by-step explanation:
Hope this helped, Have a Wonderful Day/Night!!!
Five pounds is equal to 2.268 kilograms. How many kilograms is 2 pounds?
O 0.4536
O 0.9072
1.8144
O 4.536
Answer:the answer is 0.9072 or B
Step-by-step explanation:
Patricia can drive 36 kilometers for every 3 liters of gas she puts in her car.
Complete the table using equivalent ratios.
Kilometers Liters
36 3
48 ____
____ 11
Answer:
There are two, the first one is 4 and the second is 132
Step-by-step explanation:
36 divided by 3 is 12, so 48 divided by 12 would give us the answer 4. In the last one, you multiply 11 by 12 instead.
Step-by-step explanation:
the second one is 132 uuwwuu
20 point help.brainliest will be mark
Answer:
it's 3n + 18 and 10 + 3n +8
Step-by-step explanation:
Hope this helps have a nice day :)
Please help me.......................
Answer:
I think that the answer is
-g + 12
I used a math check calculator and it said that the above is the answer
-5(4m - 6) + (-9 + 7m)
Answer:
-13m + 21
Step-by-step explanation:
Difference between 25 and the product of two and three
Answer:
19
Step-by-step explanation:
25 - (2×3) = 25 - 6 = 19
.........
describe how to solve a system of equations using elimination
Answer: In the elimination method you either add or subtract the equations to get an equation in one variable. When the coefficients of one variable are opposites you add the equations to eliminate a variable and when the coefficients of one variable are equal you subtract the equations to eliminate a variable.
Step-by-step explanation:
Answer:
In the elimination method you either add or subtract the equations to get an equation in one variable. When the coefficients of one variable are opposites you add the equations to eliminate a variable and when the coefficients of one variable are equal you subtract the equations to eliminate a variable.
Step-by-step explanation:
Someone please help Ik in desperate need
Answer:
hiiii can i get a closer look
Step-by-step explanation:
How long is 70% of 60 mins
Answer:
140%of minutes
Step-by-step explanation:
Answer:
42 minutes
Step-by-step explanation:
Please help!!! all these questions are due today
)Hannah's electricity company charges her $0.15 per kWh (kilowatt-hour) of electricity, plus a basic connection charge of $25.00 per month. Write a linear function that models her monthly electricity bill as a function of electricity usage.
Answer:
Linear function: y = 24x + 25
Step-by-step explanation:
24 hours = 1 day
30 days = 1 month
0.15 x 24 = 6
30 x 6 = 180
180 + 25 = 205
Linear function: y = 24x + 25
Hope this helps! :)
Write the coordinates of the point C after dilation with scale factor of 5, centered at the orgin
Answer:
Coordinates of point C after dilation with a scale factor of 5, centered at the origin will be: C'(10, 5)
Step-by-step explanation:
Given the point C
C(2, 1)A dilation with a scale factor of 5 means the size of the coordinates of the image of point P will be 5 times larger than than the original coordinates of point C.
Thus, the rule of dilation by a scale factor 5 is:
(x, y) → (5x, 5y)
C(2, 1) → (5x, 5y) = (5(2), 5(1)) = C'(10, 5)
Therefore, coordinates of the point C after dilation with a scale factor of 5, centered at the origin will be: C'(10, 5)
Answer:
.
Step-by-step explanation:
Drag and Drop. Determine whether the following descriptions belong to countries with a limited government or unlimited government.
Answer: unlimited: the military attacked a group of peaceful protesters fighting for the night to form professional unions and citizens were imprisoned for traveling to another part of the
Country without a government permit. The other two are limited government
Answer:
Step-by-step explanation:
Does (2,-3) satisfies the equation 5x+3y=1
Answer: Yes
Step-by-step explanation: We're going to have to substitute
in the coordinates of that ordered pair into the equation.
I am going to substitute in the x and substitute in the y.
So it's really 5(2) + 3(-3) = 1.
From here it should be pretty straightforward,
all we are doing is evaluating the statement.
Simplifying on the left we have 10 + -9 = 1 or 1 = 1.
Now we know that the ordered pair (2, -3) satisfies this equation.
6. Find the sum or difference.
(6g - 3) - (4g + 5)
Which line is perpendicular to the line y = -3x + 2?
A. 3x + y = 4
B. x + 3y = 24
C. 3x - y = 5
D. x - 3y = 3
I HATE THIS APP PEOPLE PUT FAKE ANWSERS ALL THE ONES I PUT WERE WRONG
Answer:
ok?
Step-by-step explanation:
Answer:
Avocados from Mexico
Step-by-step explanation:
You are making punch for a baby shower. Your make 6 quarts of punch. How many pints of punch did you make?
8 oz = 1 cup
2 cups = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon