Answer:
Volume of box is 288 in^3
Step-by-step explanation:
12 inches x 8 inches x 3 inches works out to
12*8*3 in^3, or 288 in^3. This capacity is just too small to accommodate 312 in^3 of cereal.
there are between 24 and 40 students in class
the ratio of boys to girls is 4:7
how many students are in the class?
9514 1404 393
Answer:
33
Step-by-step explanation:
The total number of ratio units is 4+7 = 11. If each one stands for an integer number of students, that number is a multiple of 11 between 24 and 40. The only such number is 3×11 = 33.
There are 33 students in the class.
_____
12 are boys, 21 are girls.
Below is the output from a study to see whether there is evidence of a difference in the mean amounts of time required to reach a customer service representative between two hotels. Assume that the population variances in the amount of time for the two hotels are not equal. What is the smallest level of significance at which the null hypothesis will still not be rejected?
Hotel 1 Hotel 2
Mean 2.214 2.0115
Variance 2.951657 3.57855
Observations 20 20
Hypothesized Mean Difference 0
df 38
t Stat 0.354386
P(T<=t) one-tail 0.362504
t Critical one-tail 1.685953
P(T<=t) two-tail 0.725009
t Critical two-tail 2.024394
Required:
a. State the null and alternative hypotheses for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels.
b. What is the value of the test statistic for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels? Explain how you obtain your answer.
c. What is the critical value for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels at the 5% level of significance?
Solution :
a). [tex]$\text{Set up hypothesis}$[/tex]
[tex]$\text{Null hypothesis}$[/tex] : There is no significance between them.
[tex]$H_0:\mu_1=\mu_2$[/tex]
[tex]$\text{Alternate hypothesis}$[/tex] : There is significance between them.
[tex]$H_1:\mu_1!=\mu_2$[/tex]
b). Test statics
[tex]$X(\text{mean}) = 2.214$[/tex]
Standard deviation [tex]$(s.d1)=1.718; \text{Number}(n_1)=20$[/tex]
[tex]$Y(\text{mean})=2.0115$[/tex]
Standard deviation [tex]$(s.d2)=1.8917; \text{Number}(n_2)=20$[/tex]
We use the test statics :
[tex]$t=\frac{X-Y}{\sqrt{\frac{s.d1^2}{n_1}+\frac{s.d2^2}{n_2}}}$[/tex]
[tex]$t_0=\frac{2.214-2.0115}{\sqrt{\frac{2.95152}{20}+\frac{3.57853}{20}}}$[/tex]
[tex]$t_0=0.35$[/tex]
[tex]$|t_0|=0.35$[/tex]
c. The critical value of |t| with minimum [tex]$(n_1-1)$[/tex] , i.e. 19 d.f is [tex]$2.093$[/tex]
We got [tex]$|t_0|$[/tex] = 0.35439 and |t| = 2.093
PLEASE HELP NOW IM FAILING MATH
Answer:
x = 89°
Explanation:
The angles inside a triangle will always add up to 180°
49 + 42 = 91
180 - 91 = 89°
What is X 7x - 3 = 11
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naaaa jk this is the real question
ANYONE WAN NA HAVE SOME "FUN"???
Answer:
x=2
Step-by-step explanation:
7x - 3 = 11
Add 3 to each side
7x - 3+3 = 11+3
7x = 14
Divide by 7
7x/7 = 14/7
x = 2
[tex]\boxed{\bold{ X=2 }}[/tex]
Full solution7x-3=11
now we have to add 3 in both sides
we get that,
7x-3+3=11+37x=14now divide 7 in both sides
we get that,
7x/7=14/7x=2Which numbers has a sum of zero
Answer:
prob -3
Step-by-step explanation:
The number 0 is called the additive identity because when you add it to a number, the result you get is the same number. For example, 4 + 0 = 4. Any two numbers whose sum is zero, such as 3 and -3, because 3 + (-3) = 0.
Answer:The number 0 is called the additive identity because when you add it to a number, the result you get is the same number. For example, 4 + 0 = 4. Any two numbers whose sum is zero, such as 3 and -3, because 3 + (-3) = 0.
Step-by-step explanation:
For i^2 =-1, (3-i)^2 = ?
A. 8
B. 10
C. 8-6i
D. 8 + 6i
E. 10-6i
Shirts are 5% off. The original price of one shirt is $15. What is the total cost, in dollars, of a shirt at the sale price, including a 10% sales tax
Answer:
$15.75
Step-by-step explanation:
[tex]\frac{y}{15} :\frac{5}{100}[/tex]
y × 100 = 5 × 15
100y = 75
100y ÷ 100 = 75 ÷ 100
y = 0.75
$15 - $0.75
$14.25
[tex]\frac{y}{15} :\frac{10}{100}[/tex]
y × 100 = 10 × 15
100y = 150
100y ÷ 100 = 150 ÷ 100
y = 1.5
$14.25 + $1.50
$15.75
The Martian monetary system uses colored beads instead of coins. A blue bead is worth 3 Martian credits, and a red bead is worth 7 Martian credits. Thus, three blue beads are worth 9 credits, and a blue and red bead together are worth 10 credits, but no combination of blue and red beads is worth 11 credits. Using Induction, prove that for all n ≥ 12, there is some combination of blue and red beads that is worth n credits. Clearly state the type of Induction you have used to prove the problem
Answer:
"a" is showing the number of blue beads
"b" represents the number of red beads in a combination
let "n" show the number of credits.
We get the following equation:
n = 3a + 7b.
Now, we want to prove that for all n ≥ 12, there is some combination of blue and red beads that is worth n credits, there are a, b in N such that:
n = 3a + 7b
Hence we will prove this by induction.
Base Cases: n = 12.
Applying the formula clearly 12 = 3*4+7*0.
n = 13
Applying the formula clearly 13 = 3*2+7*1.
n = 14.
Applying the formula clearly 14 = 3*0+7*2.
Induction Step: Assume that for all 12<=k<n there are x, y in N such that
k = 3x + 7y. We will now prove that there are a, b in N such that n = 3a + 7b.
By the induction hypothesis we know that there are x, y in N such that n-3 = 3x + 7y.
Hence n = n - 3 + 3 = 3x + 7y + 3 = 3(x + 1) + 7y, so choosing a = x + 1
and b = y we see that n = 3a + 7b.
Therefore by induction, the claim is true for all n ≥ 12
Which equation can be used to find the volume of this solid?
V = 3 times 5 times 4
V = 3 + 5 + 4
V = 5 times 4
V = 3 times 5
Answer:
You would use V=3 times 5 times 4
First you would multipy 5 times 4 then when you get that answer you would multiply the 3.
What is its equation
slope-intercept form ?
What is the area of this triangel
25 m
A
24.11
A 150 M
B 225 99
C 2900
D. 2901
PLEASE HELP
Mr. Feeney bought triple as many pencils as Ms. Debatty. If Ms. Debatty purchased p
pencils, then how many pencils did Mr. Feeney purchase?
Answer:
3p
Step-by-step explanation:
What is 26.509 written in Expanded Form?
The revenue of the company is given by the equation R = x (1000 – 4x), where R is the revenue of the company in dollars when thy sell x units of a product. How many units of the product should they sell to make a revenue of $60,000
Answer:
100 or 150 units of the product.
Step-by-step explanation:
R = x(1000-4x)
What is the value of x if R = 60,000?
x(1000-4x) = 60000
-4x^2 + 1000x = 60000
x^2 - 250x = -15000
x^2 - 250x + 15000 = 0
Factorize:
(x-100)(x-150) = 0
x-100 = 0 V x-150 = 0
x = 100 V x = 150
Write an algebraic expression for the situation.
7 times the sum of y and 1/3
Answer:
7(y + 1/3)
Step-by-step explanation:
7 times the sum of y and 1/3
7 * (y + 1/3)
7 * (y + 1/3)
7(y + 1/3)
Find the volume of a cone with a height of 13 cm and a radius of 5 cm.
Answer:
V≈340.34
Step-by-step explanation:
V=πr2h
3=π·52·13
3≈340.3392
Find the area of the shape.
Answer:
78.5 un²
Step-by-step explanation:
A = π · r²
π · 10²
314 un²
314 un² ÷ 4
78.5 un²
Please look at the image
Step-by-step explanation:
m∠A = 70°
m∠B = 30°
m∠C = 80°
Sum of all three angles = 70° + 30° + 80° = 180°
Hope it helps....!
Saj has made 7 litres of curry sauce.
He wants to put the curry sauce intojas.
Each jar can be completely filled with 375 millilitres of cury sauce.
Saj wants to completely fill as many jars as possible with cury sence.
How many jars can be fill?
Answer:
18 jars can be filled completely.
Step-by-step explanation:
7L=7000ml
1 jar contain 375 ml
375ml can be filled in 1 jar
375ml=1 jar
1 ml = 1/375 jar
7000 ml = 7000× 1/375 jar
7000ml= 18.67 jar
hence 18 jars can be filled completely.
The total number of jars that can be filled with sauce is A = 18 jars
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
Saj has made 7 litres of curry sauce = 7000 mL
And , each jar can be completely filled with 375 millilitres of cury sauce
So , the number of jars A = 7000 / 375
On simplifying the equation , we get
A = 18.67 jars
Hence , the number of jars is A = 18 jars
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ2
I need this please ya
GE = 26
Step-by-step explanation:
OP = 16 + 9 = 25
PE - OG = 7
Using Pythagorean theorem,
(GE)^2 = (OP)^2 + (PE - OG)^2
=(25)^2 + (7)^2
= 625 + 49
= 674
or
GE = √674 = 25.96 or 26
Eve surveys the students in her classroom to find out how much time they spent doing their homework last night. The results are plotted in the line plot below. The measurements are rounded to the nearest \dfrac{1}{4}
4
1
start fraction, 1, divided by, 4, end fraction of an hour
Answer: The answer is 5/4 :)
Answer:
5/4 or 1 1/4
Step-by-step explanation:
khan academy
What’s -9/25 as a decimal
Find the surface area of
8 m
14 m
18 m
pls help w give a brainlest
Answer:
Step-by-step explanation:
(27m^8n^4)^(1/3)
= 27^(1/3) (m6)^(1/3)(n)^(1/3) (m^2n)^(1/3)
= 3m^2n(m^2n)^(1/3)
So the answer is the last.
Select all statements that show correct reasoning for finding 12 ÷ 3/8.
Multiply 12 by 8, then divide by 3.
Multiply 12 by 3, then divide by 8.
Multiply 12 by 1/8, then multiply by 3.
Multiply 3 by 8, then divide by 12.
What is the mean of the data?
11
5
3
8
Richard drove to the east at 2 kilometers, then 1 kilometer south, and 1 kilometer west to reach home.
Answer:
answer 4 kilometer
Step-by-step explanation:
2 + 1 + 1 = 4
Leticia has a small paper weight in the shape of a rectangular prism.
The dimensions of the paper weight are shown. What is the volume of
the paper weight?
The answer is 58.4375
l*w*h is how you calculate any rectangular prism, 5*2 3/4*4 1/4 is the volume of your triangle. Hope this helps!
When a researcher asks respondents for the names or identities of others like themselves who might qualify to take part in the survey, they are using what type of sampling method
Answer:
Chain referral sampling
Step-by-step explanation:
Chain referral sampling is also known as snowball sampling. In this form of sampling, the samples are collected from the referrals given by the existing samples. The samples are collected and the research is conducted respectively. This method is used in the business marketing also. The places where the people are not known by the company, the method of chain referrals are made and the samples are collected.
PLEASE HELP! urgent! Write the equation of a line in a slope-intercept form and standard form
Answer:
[tex]y = \frac{3}{4}x -3[/tex] --- Slope intercept
[tex]4y - 3x =- 12[/tex] --- Standard form
Step-by-step explanation:
Given
The attached linear graph
Required
The equation
Select any two points on the line
[tex](x_1,y_1) = (0,-3)[/tex]
[tex](x_2,y_2) = (4,0)[/tex]
Next, calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
So, we have:
[tex]m = \frac{0 --3}{4 - 0}[/tex]
[tex]m = \frac{3}{4}[/tex]
The slope intercept is then calculated using:
[tex]y = m(x - x_1) + y_1[/tex]
So, we have:
[tex]y = \frac{3}{4}(x - 0) -3[/tex]
[tex]y = \frac{3}{4}(x) -3[/tex]
[tex]y = \frac{3}{4}x -3[/tex]
Multiply through bu 4
[tex]4y = 3x - 12[/tex]
Subtract 3x from both sides
[tex]4y - 3x =- 12[/tex] --- Standard form