Answer:
6 cups of butter because the ratio is 2/3 and if you keep with that you will get 6 cups ep-by-step explanation:
Find the slope of the line passing through the points (9, - 4) an
(5,6)
Answer:
-5/2
Step-by-step explanation:
(9,-4) and (5,6)
Slope = y2-y1/x2-x1
(6-(-4)/5-9
10/-4
-5/2
Hope this helps!
Explain how you found your answer
Answer:
let the total cost of a rug be x
then
30% of x =75
30/100*x =75
3x=750
x=750/3 = 250
Marc owe = 250-75 =175
Step-by-step explanation:
A. Determine the value of an account in which a person invested $6000 for 12 years at an annual rate of 9% compounded annually (n= 1).
Answer:
16875.98
Step-by-step explanation:
6000(1+(0.09/1)^1*12 = 16875.98
Answer:
1648
Step-by-step explanation:
A=p(1+rt)
=6000$(1+(9/100)×12))
=1648.56
7x-7=2x-1 what is x please help
Answer:
x= 1.2
Step-by-step explanation:
Step 1: Subtract 2x from both sides.
Step 2: Add 7 to both sides.
Step 3: Divide both sides by 5.
Hope this helped :)
Answer:
7x+=2x-1
7x+2x=7+1
9x=8
x=9-8
x=1
plz answer this within 2 mins and receive brainiest......
Answer:
Brand B is cheaper by 0.17 per pound.
Step-by-step explanation:
Brand A = 47.7/45 = 1.06
Brand B = 48.95/55 = 0.89
Need Help Math question
The point of intersectiom where the 2 lines cross each other is when it is 14 minutes.
Answer:
14 minutes according to the graph
Select the correct answer from each drop-down menu. Simplify the given polynomial and use it to complete the statement.
[tex]( - 5 {x}^{2} - 2x + 4) + (8 {x}^{2} - x - 1) - (x + 2)(x - 5)[/tex]
The polynomial simplifies to an expression that is a____
A.quadratic
B.liner
C.constany
______
A.trinomial
B.binomial
C.monomial
with a degree of____
A.1
B.2
C.0
Answer:
The polynomial simplifies to a quadratic with a degree of 2
Step-by-step explanation:
Expand and simplify everything
-5x²-2x+4+8x²-x-1-x²+5x-2x+10
-5x²+8x²-x²-2x-x+5x-2x+4-1+10
2x²+13
Write the following in point-slope form using the given information: Slope: 2 points
1/15; Point: (3,-5)
Answer:
[tex]y+5 = \frac{1}{15}(x - 3)}[/tex]
Step-by-step explanation:
Given
[tex]m = \frac{1}{15}[/tex] -- Slope
[tex](x_1,y_1) = (3,-5)[/tex] --- Point
Required
Write an equation in point slope form
The point slope form of an equation is:
[tex]y - y_1 = m(x - x_1)[/tex]
Substitute values for y1, x1 and m
[tex]y-(-5) = \frac{1}{15}(x - 3)}[/tex]
[tex]y+5 = \frac{1}{15}(x - 3)}[/tex]
Hence, the equation in point slope form is:
[tex]y+5 = \frac{1}{15}(x - 3)}[/tex]
if nth term of the AP 3,10,17.... is same as the nth term of the AP 63,65,67.... find n.
Answer:
n = 13
Step-by-step explanation:
[tex]a_{n}[/tex] = [tex]a_{1}[/tex] + (n - 1)d
[tex]a_{n}[/tex] = 3 + 7(n - 1) (for the first AP)
[tex]a_{n}[/tex] = 63 + 2(n - 1) ( for the second one)
3 + 7(n - 1) = 63 + 2(n - 1)
3 + 7n - 7 = 63 + 2n - 2
5n = 65
n = 13
Answer:
n = 13
Step-by-step explanation:
AP = 2, 10, 17 ...
AP1 = 63,65, 67
Find the general term of AP
L = a + (n - 1)*d
a = 2
d = 7
Find the general term of AP1
L = 63 + (n - 1)*d
a = 63
d = 2
Equation to equate both of them
L = 3 + (n-1)7
L1 = 63 + (n - 1)*2
Equate L and L1
2 + (n - 1)*7= 63 + (n-1)*2 Subtract 3 from both sides
(n - 1)*7 = 63 - 3 + (n - 1)*2 Remove the brackets
7n - 7 = 60 + 2n - 2 Combine the like terms on the right
7n - 7 = 58 + 2n Subtract 2n from both sides
7n - 2n -7 = 58 Add 7 to both sides
5n = 58 +7 Divide by 5
n = 65/5
n = 13
So the 13th term on each series is equal.
L_13 = 3 + (13 - 1)*7
L_13 = 3 + (12)*7
L_13 = 87
=====================
L'_13 = 63 + (13 -1 ) * 2
L'_13 = 63 + 12*2
L'_13 = 87
Mark paid $54.60 to fill his car's gas tank. The gas tank was empty and the cost of gasoline was $3.90 per gallon.
A football team has a net yardage of -33 yards on a series of plays. The team needs a net yardage of 10
yards to get a first down. How many yards do they have to get on their next play to get a first down?
331
Answer:
they need 43 more yards
Step-by-step explanation:
Which is the equation of a line that is perpendicular to the line
y
=
−
5
x
+
11
?
Answer:
y=1/5x
Step-by-step explanation:
hopefully that helped
Solve for x. Need help please
Answer:
3
Step-by-step explanation:
2x+6=5x-3
9=3x
x=3
find the unit rate round to the nearest hundredth calculator $170 for 14ft2
Answer:
don't expect people to help when you comment bs under their questions for points, mad weird
What is the value
-3/2(24 - 5 1/3 )
A. -44
B. 32 1/6
C. -41 1/3
D. -28
What is x if
f(x) = -2?
Answer:
Fx = -2 because if we multiply with the f and the x we will get Fx = - 2
Helppppppppppp plzzz
Answer:
4
Step-by-step explanation:
hope this helps......
Among 75 students in epidemiology class, 3 are obese per their BMI on a survey. This survey also collected information about how often students eat Krispy Kreme donuts. Seven students indicated they eat donuts daily. Of those eating donuts daily, 2 are in the obese group. Calculate the appropriate measure of association for the possible association between daily donut eating and obesity and enter your calculated result.
Answer:
2/7 become obese by eating it every day.
Step-by-step explanation:
Suppose that a population parameter is 0.3 and many samples are taken from the population. If the size of each sample is 40, what is the standard error of the distribution of sample proportions?
A. 0.095
B. 0.055
C. 0.072
D. 0.032
Answer:
0.072
Step-by-step explanation:
A P E X
Help Me please
Veronica wants to check her work after evaluating 108 ÷(-6) what steps can she follow to verify her answer?
Divide her answer by -6 and see if the result is -108.
Divide her answer by -108 and see if the result is -6.
Multiply her answer by -6 and see if the result is -108.
Multiply her answer by -108 and see if the result is -6.
Answer:
Its C
Step-by-step explanation:
Wal-Mart conducted a study to check the accuracy of checkout scanners at its stores. At each of the 60 randomly selected Wal-Mart stores, 100 random items were scanned. The researchers found that 52 of the 60 stores had more than 2 items that were priced inaccurately (the national standards allow a maximum of 2 items out of 100 items priced accurately by the scanners). a) Construct a 95% confidence interval for proportion of Wal-Mart stores that have more than 2 items priced inaccurately per 100 items scanned and give a practical interpretation of this interval. (3 Points) b) Wal-Mart claims that 99% of its stores comply with the national standard on accuracy of price scanners. Comment on the believability of Wal-Mart’s claim based on your results in part (a). (1 Point) c) Determine the number of Wal-Mart stores that must be sampled in order to estimate the true proportion to within 0.05 with 90% confidence. (3 Points)
Answer:
a
The 95% confidence interval is
[tex] 0.7811 < p < 0.9529 [/tex]
Generally the interval above can interpreted as
There is 95% confidence that the true proportion of Wal-Mart stores that have more than 2 items priced inaccurately per 100 items scanned lie within the interval
b
Generally 99% is outside the interval obtained in a above then the claim of Wal-mart is not believable
c
[tex] n = 125 \ stores [/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 60
The number of stores that had more than 2 items price incorrectly is k = 52
Generally the sample proportion is mathematically represented as
[tex]\^ p = \frac{ k }{ n }[/tex]
=> [tex]\^ p = \frac{ 52 }{ 60 }[/tex]
=> [tex]\^ p = 0.867[/tex]
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} } [/tex]
=> [tex]E = 1.96 * \sqrt{\frac{ 0.867 (1- 0.867)}{60} } [/tex]
=> [tex]E = 0.0859 [/tex]
Generally 95% confidence interval is mathematically represented as
[tex]\^ p -E < p < \^ p +E[/tex]
=> [tex] 0.867 - 0.0859 < p < 0.867 + 0.0859 [/tex]
=> [tex] 0.7811 < p < 0.9529 [/tex]
Generally the interval above can interpreted as
There is 95% confidence that the true proportion of Wal-Mart stores that have more than 2 items priced inaccurately per 100 items scanned lie within the interval
Considering question b
Generally 99% is outside the interval obtained in a above then the claim of Wal-mart is not believable
Considering question c
From the question we are told that
The margin of error is E = 0.05
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.645[/tex]
Generally the sample size is mathematically represented as
[tex]n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p ) [/tex]
=> [tex]n= [\frac{1.645 }}{0.05} ]^2 * 0.867 (1 - 0.867 ) [/tex]
=> [tex] n = 125 \ stores [/tex]
Help please tell me
Answer:
x and y are not in a proportional relationship
Step-by-step explanation:
x and y can be said to be in a proportional relationship, if the ratio of each given pair of values (y/x) on the table are equal. The ratio would represent the constant of proportionality.
Let's find out:
(3, 7) = y/x = 7/3 = 2.33
(6, 13) = y/x = 13/6 = 2.17
(9, 19) = y/x = 19/9 = 2.11
(12, 25) = y/x = 25/12 = 2.08
The ratio of each given pair of values are not the same. Therefore, x and y are not in a proportional relationship.
The Cyclops and Dragon both have a lot of friends that are serving as bridesmaids and groomsmen. Also, the King is acting as the officiant of the ceremony. Poly determines that the best way to organize everyone is for the officiant to stand at a vertex at the front, and to have the bride and groom stand across from each other. The bridesmaids and groomsmen will then line up so that the entire group forms a "U" shape that is symmetric about a line that passes through the point where the officiant stands.
What type of function most accurately models this structure?
quadratic
radical
linear
rational
Answer:
quadratic
Step-by-step explanation:
A random sample of 12 recent college graduates reported an average starting salary of $54,000 with a standard deviation of $6,000.
a. Construct a 95% confidence interval for the mean starting salary of college graduates.
a. 50188 to 57812$
b. 45,0000 to 50,000$
c. 48,000 to 60,000$
d. 50,000 to 54000$
b. The National Association of Colleges and Employers reports that the mean starting salary for 2017 college graduates is $50,516. Does your confidence interval (part a) indicate that starting salaries have significantly changed since 2017? Why or why not?
Answer: a.) $50188 to $57812
Step-by-step explanation: Confidence Interval (CI) is an interval of values in which we are confident the true mean is in.
The interval is calculated as
x ± [tex]z\frac{s}{\sqrt{n} }[/tex]
a. For a 95% CI, z-value is 1.96.
Solving:
54,000 ± [tex]1.96.\frac{6000}{\sqrt{12} }[/tex]
54,000 ± [tex]1.96\frac{6000}{3.464}[/tex]
54,000 ± 1.96*1732.102
54,000 ± 3395
This means the interval is
50605 < μ < 57395
With a 95% confidence interval, the mean starting salary of college graduates is between 50605 and 57395 or from 50188 to 57812$.
b. The mean starting salary for college students in 2017 is $50,516, which is in the confidence interval. Therefore, since we 95% sure the real mean is between 50188 and 57812, there was no significant change since 2017.
NEED THIS ASAP PLEASE
Answer:
50
Step-by-step explanation:
What’s the missing length????? Please
Answer:
The missing length is 11
Step-by-step explanation:
What is the elevation of the deck where Winston ate dinner?
plz helppp
Question:
What is the elevation of the deck where Winston ate dinner?
Answer:
The surf shop was higher and the distance would be 12.8 feet above the oceans surface.
12.8
Step-by-step explanation:
HELPPPP IM GIVING BRANLEISTTTT PLESE HURRY ITS DUE IN 20 minssss!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
B. -3,4
Step-by-step explanation:
1. Choice D
2. Choice C
3. Choice B
4. Choice B
5. Choice C
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
Martha needs 7 strawberries for every 1 smoothie.
What are the missing values in the table
Answer:
Strawberries Smoothies
28 4
21 3
70 10
Step-by-step explaination
If Maria uses 28 strawberries you would divide that by 7 (since that's how many she uses for one smoothie) after you divide 28 by 7 you get 4, 4 is the number of smoothies 28 strawberries makes.
If Maria makes 3 smoothies you multiple 3 by 7 (since that's how many strawberries she uses to make one) 7 times 3 is 21. If you want to check your work you would divide 21 by 7 (the number of strawberries used for 1 smoothie) and you would get 3.
If Maria uses 70 strawberries you would divide 70 by 7 (the number of strawberries used for 1 smoothie) 70 divided by 7 is 10, 10 is the number of smoothies 70 strawberries make.
