Answer:
0.9696
Step-by-step explanation:
Given that:
Mean, m = 79
Standard deviation, s = 8.2
Sample size, n = 35
Probability that final exam grade of the sample is between 76 and 82
P(76 < x < 82)
P(x < 82) - P(x < 76)
Using the relation :
Z = (x - m) / (s/sqrt(n))
s / sqrt(n) = 8.2/sqrt(35) = 1.3860529
P(x < 82) - P(x < 76)
P[(82 - 79) / 1.3860529] - P[(76 - 79) / 1.3860529]
P(Z < 2.1644) - P(Z < - 2.1644)
Using the Z probability calculator :
0.98478 - 0.015217
= 0.969563
Hence, probability = 0.9696
The cost of a party is $250. The price per person is 13.50 how many people attend the party.
Answer:
18
Step-by-step explanation:
250 / 13.5 = 18.51
How are the concepts of markup and markdown related to the percent equation?
Answer:
Markup is how much to increase prices and markdown is how much to decrease prices. If we are given a markdown percentage, we multiply the percentage with the original price to find how much of a decrease we are getting, then we subtract this difference from the original price to find the marked down price.
Step-by-step explanation:
9514 1404 393
Explanation:
Markup is the name given to the difference between a cost price and a selling price:
cost price + markup = selling price
Markdown is a name given to the difference between a list price or tag price and the actual selling price.
list price - markdown = selling price
Markup and markdown are actual currency amounts. Often, sellers relate them to the cost price or the list price using percentages. That is, the percentage markup can be figured as ...
percent markup = (markup)/(cost price) × 100%
Similarly, the markdown may be expressed as a percentage of the selling price:
percent markdown = (markdown)/(selling price) × 100%
__
Additional comments
These representations as percentages are often used because a seller is usually interested in having a specific percentage return on money invested. By making the markup a specific percentage of the cost price, that return can be ensured.
Markdown percentages are often important to a buyer. They look for sales that offer a large percentage discount (markdown), sometimes not paying so much attention to the list price.
2/3 x 2/3 x 2/3 / = fraction
Answer:
8/27
Step-by-step explanation:
2/3 × 2/3 × 2/3
= 8/27
Answer: 0.4444 in decimal form
Step-by-step explanation:
At this point just give me the answer so I can move on lol I know how to work it but this one I can’t seem to get♀️
Answer:
888/155
Step-by-step explanation:
Answer:
x= 888/155
Step-by-step explanation:
What is the total length of all meteors that are 1 6/8 inches?
Answer:
3 4/8
Step-by-step explanation:
Which of the following must be true for the parallelogram shown below?
Answer:
DAB = BCD
Step-by-step explanation:
DAC = BAC = 90 degrees and DAB = ABC = 90 degrees don't work because they're both equilateral triangles and don't have a right angle that would equal 90. DAB = ABC are clearly not congruent so the answer is DAB = BCD. Also DAB = BCD share the same midsection line.
9. The side of a rectangle was 56 feet long. It is now 8 feet long. What was the scale factor was
used?
8 ft
56 ft
Answer:
56ft
Step-by-step explanation:
because 还是故事还是vs酒吧睡觉把书本上
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.
Online Content: Site 1
Why isn’t a good idea to study in bed?
Answer;
because you can get tired and start falling a sleep. their should be a place where you work with lights so you dont go to sleep.
100% edg
Answer: Working or doing homework in bed will reduce one's focus because most people tend to associate their beds with comfort and sleep. Doing such activities in bed can lead to a deviation of the brain to become more lazy and possibly fall asleep.
Disadvantages of studying in bed includes issues related to posture and concentration. Hence, studying in bed often ;
Induces sleep and weariness Inappropriate posture required for studying and assimilation.A bed is primarily meant for sleeping while desks and chairs are made for studying. The difference in the build is due to the purpose of nature of each activity. Studying in an environment meant for sleeping would most likely induce sleep.
Similarly the structure or design of a bed isn't appropriate for studying and may likely affect the rate of assimilation.
Learn more :https://brainly.com/question/19119932
Find the value of each expression.
-22+5
Answer:
-17
Step-by-step explanation:
Factor out the negative sign
Keep the sign of the number with the larger absolute value and subtract the smaller absolute value from the larger.
-(22 - 5)
Subtract
-(22 - 5) = - 17
In this figure triangles LMN and PQR are congruent
Answer:
6
Step-by-step explanation:
Since they are congruent, they would have the same length measures for their corresponding sides.
Write an Integer for each situation. Moving 5 spaces back on a game board
Fill in the blanks
The number 2000 is__________times as much as the number 200.
The number 0.5 is_________as much as the number 5.
The number 2000 is 10 times as much as the number 200.
The number 0.5 is 1/10 as much as the number 5.
What is the area of the composite figure? 13 cm 5 cm 2 cm O 70 cm2 0 100 cm2 O 105 cm2 O 130 cm2 5 cm 5 cm 14 cm
Answer: b: 100cm^2
Step-by-step explanation:
took the test :)
The area of the composite figure that is formed from a rectangle and triangle is 100 cm²
Area of the composite figureThe area of the composite figure is the sum of the area of the whole figure.
Therefore, the composite figure can be divided into a triangle and a rectangle.
Hence,
area of rectangle = lw
where
l = lengthw = widtharea of the rectangle = 14 × 5 = 70 cm²
area of triangle = 1 / 2 bh
where
b = baseh = heightTherefore,
area of a triangle = 1 / 2 × 12 × 5
area of a triangle = 30 cm²
area of the composite figure = 30 + 70 = 100 cm²
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#SPJ5
The cost of renting a canoe to use on River Y costs $38. The cost of renting a canoe to use on River Z costs $4 per hour plus a $14 deposit. The total cost, c, of renting a canoe on either river for n hours can be represented by an equation. Write and graph a system to find how many hours you have to rent a canoe for the cost to be the same on both rivers.
Answer:
see the attachment
Step-by-step explanation:
The cost for River Y is a constant (not dependent upon hours), so is c = 41.
The cost for River Z is the sum of the deposit and the hourly cost, so is ...
c = 13+4n
These equations and their graphs are shown in the attachment. The graphs cross where n=7, indicating you have to rent a canoe for 7 hours for the cost to be the same on both rivers.
Sheldon needs to buy 8 gallons of ice cream for a family reunion. The table shows the prices for different sizes of two brands of ice cream.
Answer:
theres no picture so how will we know
Step-by-step explanation:
post the picture first
How many tens equal 7000 ones ?
My answer was wrong, I'm am very sorry
There are 600 children in a Mathematics Club. 450 of them are boys and
the rest are girls. Find the percentage of the children in the Mathematics
21.
club who are girls.
Answer:
25%were girls.
hope it helps..
Which is the best buy?
A. 4 oz for $3.76
B. 6 oz for $5.70
C. 3 oz for $2.88
D. 2 oz for $1.92
Will mark brainliest pls help
Answer:
A.
Step-by-step explanation:
You divide prices by the number of oz to find out what the price is per ounce
John is going camping, and he needs to buy a tent. The outdoor store has one that cost $90, but it's on sale for 25% off. What is the sale price? * A.$22.50
B.$65.00
C.$67.50
B.$112.50
Answer: C. $67.50
Explanation:
1. Convert 25% into a decimal (0.25)
2. Multiply 90 by 0.25 to get the amount of money discounted. (90x0.25=22.5=$22.50)
3. Subtract 22.5 from 90 to get the sales price. (90-22.5=67.5=$67.50)
Hiroshi found that 3/5 of his class prefers vanilla ice cream, 26% prefers chocolate ice cream, and 0.14 prefers strawberry ice cream. Put the numbers in order from least to greatest. Which kind of ice cream do the least number of students prefer?
help asappp!!!
Answer:
The kind of ice cream the least number of students prefer is Strawberry ice cream.
Step-by-step explanation:
We convert all given values to decimal
Hiroshi found that:
a) For vanilla ice cream
3/5 of his class prefers vanilla ice cream
3/5 to decimal = 0.6
b) For Chocolate ice cream
26% prefers chocolate ice cream
26% to decimal = 0.26
c) For strawberry ice cream
0.14 prefers strawberry ice cream
0.14 = 0.14
Arranging the numbers in order from least to greatest, we have :
0.14, 0.26 , 0.6
The kind of ice cream the least number of students prefer is Strawberry ice cream.
4. If two times a number increased by 5 equals 9, then find the number
Answer: x = 2
Step-by-step explanation:
Let x represent the unknown number:
2x + 5 = 9
Subtract 5 from both sides
2x = 4
Divide both sides by 2
x = 2
how dose north america achieve 480VAC with 3 pole 120VAC
Answer:
There are a variety of factors driving the
adoption of 415/240VAC distribution. First,
distributing at these increased voltages
enables overall efficiency to be enhanced
by eliminating the need for a voltage
transformation along the power path. For
example, in a 415V system, the L-N voltage
is 240V, which is compatible with most all IT
loads. By shifting the UPS output distribution
voltage to 415/240 V three-phase (L-L/
L-N), most of the existing servers today can
be powered with 240V single-phase (L-N)
without any intermediate transformation.
Removing the need for a transformer
streamlines the power path and can increase
efficiency approximately 1.5 percent.
The adoption of a 415/240VAC distribution
model also can yield additional savings at
the device-level in the form of increased
efficiency for server power supplies. As
previously mentioned, today’s power
supplies can handle a wide range of incoming
voltages. Based on the actual voltage being
fed into the power supply, efficiencies can
range from as low as 80 percent (at 100V
nominal) to as much as 94 percent (at 240V
nominal) across all manufacturers.
Furthermore, while the typical efficiency
differential between 240V and 208V gained
at the server power supply today is a relatively
minimal, only 0.3 percent across most of
the load range, the efficiency differential
between 240V and 120V servers can be as
much as 2 percent for a given power supply.
It is this value that often gets overstated by
some manufacturers when comparing 415V
distribution to “traditional methods,” as
there are relatively few servers or peripherals
installed today that are operating at 120V.
Step-by-step explanation:
The circle below is centered at the point (4, 3) and has a radius of length 5.
What is its equation?
Answer:
[tex](x-4)^{2} + (y-3)^{2} = 5^{2}[/tex]
Step-by-step explanation:
Equation is circle is given as
[tex](x-x_1)^{2} + (y-y_1)^{2} =r^{2}[/tex]
Here [tex](x_1. y_1)=(4, 3)[/tex] and [tex]r=5[/tex]
Equation of circle with center at (4, 3) and radius 5 can be written as
[tex](x-4)^{2} + (y-3)^{2} = 5^{2}[/tex]
A farmer is going to divide her 30 acre farm between two crops. Seed for corn costs $15 per acre. Seed for wheat costs $30 per acre. The farmer can spend at most $750 on seed.If wheat brings in a profit of $110 per acre, and corn brings in a profit of $100 per acre, how many acres of each crop should the farmer plant to maximize her profit
Answer:
$3200
Step-by-step explanation:
The total area of land is 30 acre. Let x represent the area in acre that corn is planted and y represent the area in acre that wheat is planted. Therefore:
x + y = 30 (1)
Also, the farmer can spend at most $750 on seeds. Corn cost $15 per acre, maize cost $30 per acre. Hence:
15x + 30y ≤ 750 (2)
Also, x and y > 0
The profit is given by the function:
Profit = 100x + 110y
Graphing equation 1 and equation 2 and solving, we get the points:
(10, 20)
Hence the maximum profit is at:
Max profit = 100(10) + 110(20) = $3200
Help need this fast graphs
Answer:
Step-by-step explanation:
Positive linear :). It’s going in a higher of direction so when the Y value rises the of thIt’s going in a higher of direction so when the Y value rises the X value also rises
The type of match to use in a Vlookup() function to assess the resort fee as a possible additional cost for a particular room is: Group of answer choices A fuzzy match An approximate match An exact match None of the answer sections are correct
Answer:
An approximate match
Step-by-step explanation:
The vlookup (vertical lookup) function is a search function in excel used in locating values in an excel table.
The vlookup syntax is written as:
=VLOOKUP(value, table, col_index, [range_lookup])
The range_lookup is an optional parameter which is used to indicate if the search should be for an exact match or approximate match. Since a column, resort fee will be used as a possible additional cost; the search would be required to return an approximate search rather than an exact match in other for the search condition to be adequately implemented.
The type of match to use in a Vlookup() function to assess the resort fee as a possible additional cost for a particular room is
B. An approximate match An Approximate MatchThis refers to the possible cost when the Vlookup() function is used as it is used as a search function to find the values which are in a database table.
With this in mind, we can see that the syntax looks like:
VLOOKUP(value, table, col_index, [range_lookup])Therefore, the correct answer is option B
Read more about approximate match here:
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Identify the vertex of the function, Ax) = 3(x - 1)2 + 5.
O (-1,5)
(1,5)
O (5,-1)
O (5,1)
Which one?
Answer:
The third one I think, O (5,-1), but I'm not sure if I'm correct or not.
Step-by-step explanation:
Answer:
O(5,1)
Step-by-step explanation:
It's O(5,1) function
Can someone help me?
Answer:
DE/AB=12.5/5
DF/AC=3/1.2
EF/BC=6.5/2.6
look at picture and answer pls
Answer:
(3.2= the second line after 3) (4.7= the 7th line after 4)
Step-by-step explanation:
Simplify the expression.
2x+)+(+1 8x - 3
