Answer:
[tex](a)\ \mu_y = 1125[/tex]
[tex](b)\ \sigma_y = 300[/tex]
Step-by-step explanation:
Given
[tex]\mu_x = 75[/tex] -- Mean of T-shirts
[tex]\sigma_x = 20[/tex] -- Standard deviation of T-shirts
[tex]Rate = \$ 15[/tex]
Solving (a): The mean of the revenue [tex](\mu_y)[/tex]
To solve this, we use:
[tex]\mu_y = Rate * \mu_x\\[/tex]
This gives:
[tex]\mu_y = 15 * 75[/tex]
[tex]\mu_y = 1125[/tex]
Solving (b): The standard deviation of the revenue [tex](\sigma_y)[/tex]
To solve this, we use:
[tex]\sigma_y = \sqrt{Rate^2 * \sigma_2^2}[/tex]
This gives:
[tex]\sigma_y = \sqrt{15^2 * 20^2}[/tex]
[tex]\sigma_y = \sqrt{90000}[/tex]
[tex]\sigma_y = 300[/tex]
find the volume and surface area of each solid. you may use a calculator and use 3.14 as an approximation for pi
Answer:
Area = 452.16 cm²
Volume = 904.32 cm³
Step-by-step explanation:
The solid is a sphere, therefore,
Volume = ⁴/3πr³
Where,
π = 3.14
r = 6 cm
Volume = ⁴/3*3.14*6³
Volume = 904.319997 ≈ 904.32 cm³ (nearest hundredth)
Area = 4πr²
Area = 4*3.14*6²
Area = 452.16 cm²
Which expression is equivalent to ? Assume
[(2x³y⁴)² × 2x]½
(2x³y⁴)½ ×(2x)½
2x³y⁴(2x)½
4 (x + 5)=12 what is x?
Answer:
x = -2
Step-by-step explanation:
4(x + 5) = 12
4x + 20 = 12
4x + 20 - 20 = 12 - 20
4x = -8
4x / 4 = -8 / 4
x = -2
Hope this helps, thank you :) !!
Help anyone I’ll mark Brainly
Answer:
1. scalene
2. isosceles
3. scalene
4. equilateral
5. isosceles
6. scalene
7. scalene
i cant see all of 8
Answer:
1. scalene
2. isosceles
3. scalene
4. equilateral
5. isosceles
6. scalene
7. scalene
i cant see all of 8
Step-by-step explanation:
Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A cereal company claims that the mean weight of the cereal in its packets is at least 14 oz. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.
Answer:
There is not sufficient evidence to warrant the rejection of the claim that the mean weight of cereal is atleast 14 oz
Step-by-step explanation:
The hypothesis for the test above will be stated as follows :
The claim to be tested is the alternative hypothesis, which is the negation of the Null hypothesis
H0 : μ < 14
H1 : μ ≥ 14
If the Null is rejected, then it means that the company's claim that the mean weight of its cereal being atleast 14 is valid ;
Then it means there is significant evidence to support the stance that the mean weight of cereal in the company's packet is atleast 14 oz.
I want to know if I am correct. I forgot how to do this and I am helping out little brother
1
If ZA and ZB are complementary angles and mA = 60°, then m B =?
Answer:
30 degrees
Step-by-step explanation:
Because the angles are complementary, they MUST equal to 90 degrees
Because measure of Angle A = 60, then the measure of Angle B = 30, because 60 + 30 = 90 degrees
Find the area of the composite figure
Jeremy bought a new pair of jeans. The jeans
regularly cost $30, but they are on sale for
10% off. There is a 6% sales tax on his
purchase. How much will Jeremy pay
altogether for the jeans ?
Answer:
Jeremy would pay $28.62 in total.
Step-by-step explanation:
Given Find the area of figured one area of figure two area of figured three area of figure four area of the whole figure
Answer:
culeous
Step-by-step explanation:
because it gives particular figured area
\
What the person above me said. :)
Kevin takes classes at both Westside college and Pinewood college at Westside class fees are $98 per credit hour and Pinewood they are $115 per credit hour. Karen is taking combined total of 18 credit hours at the two schools. Suppose that she's taking W credit hours at Westside. Write an expression for the combined total dollar amount that she paid for the class fees
Answer:
y = 98(w) + 115(18 - w)
Step-by-step explanation:
The expression that represents how much Kevin spends for classes at both schools : (#credits at Westside)($98) + (#credits at pinewood)($115). If he takes all credits at Westside this is 18(98) + 0, which would be the lowest cost it could be, if he takes all credits at Pinewood this would be 0 + (18)(115) which would be the maximum Bob could pay for 18 credits. If y is the total cost of is courses, then y = 98(w) + 115(18 - w). Using the distributive property, this can be simplified.
Out of 24 cookies,
3
4
are chocolate chip. How many cookies are chocolate chip?
Answer:
18 cookies
Step-by-step explanation:
3/4 = 75%
75% = 0.75
Multiply this by 24 = 18 cookies
Please help!!! use the distributive property to rewrite the expression
(x + 3)(2x - 7)
Answer:
Step-by-step explanation:
( x + 3) (2x - 7)
x(2x - 7) + 3(2x - 7)
Plz help me well mark brainliest if you are correct!
Answer:
the radius is 4 inches
Step-by-step explanation:
diameter/2=radius
Answer: 4 inches
Step-by-step explanation: r= d/2=/2=4inches
What is the value of i^12?
Answer:
i^12
Step-by-step explanation:
there is no further answer
Answer:
i^12 = 1
One to any power is one.?
Solve for x in the diagram below.
110°
(8x +30°
Answer:
880x+30
880 880
x=29.3 repeating
Step-by-step explanation: Hope this helps
Find the distance between the points. (-7,8) (7,8)
PLEASE H E L P.
Answer:
14
Step-by-step explanation:
Hope this Helps!!!!!
What time is it in iowa when the sun goes down in new york at 5:20 pm est?
If x= -4, find the value of x²-5+6.
Answer:
42 is your answer if there is -5x
Step-by-step explanation:
when x=-4
x²-5x+6=(-4)²-5×-4+6=16+20+6=42
Can Somone Help me with my homework
Answer:
part A) yes, the bases and heights are the same
Part B) yes, the bases and heights are the same
Part C) not enough info
Step-by-step explanation:
Part C)
area of the circle = π(1/2h)²
area of ellipse = π(1/2h)(1/2 major axis)
Which table contains only values that
satisfy the equation y = 6x +2?
FOR BRAINLIST!!
Answer:
table C
Step-by-step explanation:
We have to try to substitute the x with its value and y with its value. If the equality is satisfied, the points are points of the line
Table A
0 = 0 + 2
0 = 2 false, table A can’t be the answer
Table B
2 = 2 true
4 = 6 + 2
4 = 8 false, table B can’t be the answer
Table C
2 = 2 (true)
8 = 6+2 ; 8=8 (true)
14 = 12 + 2 ; 14= 14 (true)
20 = 18 + 2 ; 20=20 (true)
4. Find the value of x.
Can you pls show work thank you for your time
Answer:
x= 12
Step-by-step explanation:
11x+2=134
-2 -2
_________
11x = 132
__ ___
11 11
x=12
The retail price of a television set is $2500. If the buyer pays cash, the price is 10% below the retail price. If the set is bought on hire purchase, the buyer pays a downpayment of $500 and 18 monthly installments of $150.
A) Determine the difference between the hire purchase price and the cash price.
B) Calculate the difference as a percentage of the retail price.
Answer:
cash price:
10% = 250
2500 - 250 = $2,250
hire purchase:
2500 + 500 + 150(18) = $5,700
a) 5,700 - 2,250 = $3,450
If the side length of a square is 4 inches, its area is __ square inches and its priemeter is __ inches.
Answer:
16 for both
Step-by-step explanation:
1 2 2/3×2 1/3 plz help plz
Answer:
76/9
Step-by-step explanation:
Alternative form: 8 4/9, 8.4
What is the period of the following periodic function? to 3 decimal places
y= .5csc(x+9)-6
_____________________________
Step-by-step explanation:
hope it is helpful to you
Evaluate the expression shown below and write your answer as either a mixed number or fraction in simplest form, or a decimal.
Answer:
What is the current requirement needed for a person to have inbox power in brainly?
Answer:
Evaluate the expression shown below and write your answer as either a mixed number or fraction in simplest form, or a decimal.
2+(-5)+8.25 (-5.5)
24-u=234 solve for u
Answer:
u= -210
Step-by-step explanation:
Hope this is helpful(please make me the brainliest!)
Find the solution set of the inequality:
-3x + 8 < 15
Answer:
the answer would be x>-7/3