Answer:
[tex] {x}^{2} - 11x + 37 - \frac{128}{x + 4} [/tex]
Figure ABCD is a rectangle. Find the value of x. 9x - 6 3x + 12 x= [?]
Answer:
x=3
Step-by-step explanation:
9x-6=3x+12
6x=18 |:6
x=3
Determine the value of w, then x, then y, and finally z.
Answer:
w 20x35y try to make it work
Which best illustrates the distinction between statistical significance and practical importance?
A. In 2016, 240 out of 400 statistics students at Oxnard Technical College sold their textbooks at the end of the semester, compared with 220 out of 330 students in 2015, a significant decrease.
B. Our new manufacturing technique has increased the life of the 80 GB USB AsimoDrive external hard disk significantly, from 240,000 hours to 250,000 hours.
C. In 50,000 births, the new vaccine reduced the incidence of infant mortality in Morrovia significantly from 14.2 deaths per 1000 births to 10.3 deaths per 1000 births.
D. The new Sky Penetrator IV business jet's cruising range has increased significantly from 3,975 miles to 4,000 miles.
Answer:
The distinction between statistical significance and practical importance is best illustrated by:
C. In 50,000 births, the new vaccine reduced the incidence of infant mortality in Morrovia significantly from 14.2 deaths per 1000 births to 10.3 deaths per 1000 births.
Step-by-step explanation:
Current state Previous state Change
A. Textbooks sold 240/400 (0.6) 220/330 (0.67) 0.07
B. Life of hard disk 250,000 hrs 240,000 hrs 0.04
C. Infant mortality 10.3 per 1000 14.2 per 1000 0.27
D. Cruising range 4,000 miles 3,975 miles 0.006
Statistical significance, which depends on the p-value established before the test, relates to whether an effect exists, while practical significance determines the magnitude or size of the effect. A statistical test cannot tell whether the magnitude is large enough to be important. Mathematically, the change can be determined, which establishes the practical significance or importance of the change.
help pls due today i am just trying to get good grades
Answer:
c
Step-by-step explanation:
because the question already told that a table has four chairs. So, we need the number of tables in the cafe to calculate number of chairs
Chloe invests money in an account paying simple interest. She invests $200 and no money is added or removed from the investment. After one year, she has $204. What is the simple percent interest per year?
Answer:
2%
Step-by-step explanation:
Chloe's simple interest for 1 year is $4. You can get this by subtracting the amount she invested from the total amount she got after one year.
$204 - $200 = $4Now that we know the simple interest, we can now get the simple interest rate or simple percent interest per year by dividing $4 by $200.
$4 ÷ $200 = 0.02Let's change 0.02 into a percentage.
0.02 x 100 = 2%This means that every year, her investment will earn a 2% simple interest.
Answer:
2%
Step-by-step explanation:
There are 16 girls and 18 boys in a class. The teacher chooses a student's name at random to answer a question.
What is the probability that the teacher chooses a girl to answer the question?
А: 1/34
B:1/16
C:8/17
D: 8/9
Answer:
I would go with c
Step-by-step explanation:
if it is incorrect sorry
(2127*34534) : 122
pls need help
Answer:
36726909: 61
Step-by-step explanation:
2127 * 34534 = 73453818
therefore 73453818: 122
divide both sides to the simplest form
36726909: 61
Find f(-4) if f(x) = -3x+5
List the angles of the triangle in order from largest to smallest.
Question 1 options:
A)
∠B, ∠C, ∠A
B)
∠A, ∠B, ∠C
C)
∠A, ∠C, ∠B
D)
∠C, ∠B, ∠A
Answer:
Step-by-step explanation:
4 quarts of organic grapes cost $20 what is the cost per quart
Given the expression 1/4 - 3/5, select the addition problem that is equivalent to it.
Given that,
An expression [tex]\dfrac{1}{4}-\dfrac{3}{5}[/tex]
To find,
The value of above expression.
Solution,
We have,
[tex]\dfrac{1}{4}-\dfrac{3}{5}[/tex]
The LCM of 4 and 5 is 20.
[tex]\dfrac{1}{4}-\dfrac{3}{5}=\dfrac{(5)-4(3)}{20}\\\\=\dfrac{5-12}{20}\\\\=\dfrac{-7}{20}[/tex]
So, the required answer is [tex]\dfrac{-7}{20}[/tex].
help please!!! PLEASE HELP!
9514 1404 393
Answer:
x = 8
Step-by-step explanation:
Corresponding segments are proportional.
2x/12 = (x+4)/9
18x = 12(x +4) . . . . . multiply by 9·12
6x = 48 . . . . . . . . . . subtract 12x
x = 8 . . . . . . . . . . . . divide by 6
Whoever answers this question correctly will get a 5.0 rating, thanks, and a brainlyist.
The question is on the screenshot.
RULE 1: Do not answer just for points because that's just mean.
A 1125 ft^3 open-top rectangular tank with a square base x ft on a side and y ft deep is to be built with its top lush with the ground to catch runoff water. The costs associated with the tank involve not only the material from which the tank is made but also an excavation charge proportional to the product xy.a. If the total cost isc = 5(x^2 + 4xy) + 10xy,what values of x and y will minimize it?b. Give a possible scenario for the cost function in part (a).
Answer:
The values of x and y that will minimize the cost is 15 ft and 5 ft respectively and the minimum cost will 3,375
Step-by-step explanation:
With a 1125 ft^3 open-top rectangular tank with a square base x ft on a side and y ft deep is to be built with its top lush with the ground to catch runoff water, x is the length, y is the height;
x^2*y = 1125
y = 1125/x^2 ----(1)
The total cost of c = 5(x^2 + 4xy) + 10xy
Then,
c = 5(x^2 + 4x*(1125/x^2)} + 10x*(1125/x^2)
c = 5x^2 + 22,500/x + 11,250/x
c = 5x^2 + 33,750/x
To minimize the cost of c, find the derivatives of c; c'
c' = 10x - 33,750/x^2
c' = (10x^3 - 33,750)/x^2
c'(x) = 0; 10x^3 = 33,750
x = ³√33,750 = 15
x = 15; y = 1125/x^2
y = 1125/15^2 = 5
(x,y) = (15,5)
c = 5x^2 + 33,750/x
c = 5*15^2 + 33,750/15 = 3,375
The values of x and y that will minimize it is 15 ft and 5 ft respectively and the minimum cost will 3,375
The values of x and y that will minimize the cost is 15ft and 5ft. The minimum cost is 3,375
We have volume of a rectangular tank = 1125 ft^3
Side of a rectangular tank = x ft and
Length of a rectangular tank =y ft
So, [tex]x^2y = 1125[/tex]
[tex]y = \frac{1125}{x^2} ...(1)[/tex]
The total cost of rectangular tank (c) = [tex]5(x^2 + 4xy) + 10xy[/tex]
[tex]c = 5(x^2 + 4x(\frac{1125}{x^2} ) )+ 10x(\frac{1125}{x^2} )\\c = 5x^2 +\frac{22,500}{x} + \frac{11250}{x} \\c = 5x^2 + \frac{33750}{x}[/tex]
Differentiating it w.r.t x, we get
[tex]c' = 10x - 33,750/x^2\\c' =\frac{10x^{3}-33750 }{x^{2} } \\c'(x) = 0\\10x^3 = 33,750\\x = \sqrt[3]{33,750} \\ = 15\\x = 15; y = \frac{1125}{x^2} \\y = \frac{1125}{15^{2} } \\= 5\\(x,y) = (15,5)\\c = 5x^2 + \frac{33750}{x} \\c = 5(15)^2 + 33,750/15 \\= 3,375[/tex]
The values of x and y that will minimize the cost is 15 ft and 5 ft and the the minimum cost is 3,375.
Learn more:https://brainly.com/question/6995312
2. Danny goes to McDonald's with her friends. They buy 3 Big
Macs, 2 Chicken Sandwiches, 5 French Fries and 4 Cokes.
McDonald's also charges 8.25% sales tax. How much will Danny
and his friends pay for the meal, including taxes. If Danny pays
the cashier $100, how much change will he get back?
Plz Help fast WILL MARK BRAINLIEST

A and B are equidistant from the line l. How many circles can be drawn with their centres on line l and that pass through both A and B?
A. 1
B. 2
C. 3
D. 4
E. >10
Answer:
just one.. so A
Step-by-step explanation:
Line segment EG is partitioned by point F in the ratio 1:3. Point E is at E (0,4), and point F is at (1,3). What are the coordinates of point G?
Please help ASAP.. I’m really stuck >.< Any help is appreciated! (70 Points!!)
Answer:
1,4
Step-by-step explanation:
0,4 1,3 has to be farther
Answer:
(4,0)
Step-by-step explanation:
Please help hurry. Drag each number to the correct location on the table.
Classify the numbers according to their positions on a vertical number line
Answer:
Between -2 and 1 is -0.5 and 0.5
Below -2 is -4.5 and -2.5
Above 1 is 4 and 1.5
Step-by-step explanation:
Can i have brainliest?
Answer:
Below -2: -4.5 & -2.5
Between -2 & 1 : -0.5 & 0.5
Above 1: 4 & 1.5
Step-by-step explanation:
Hopefully that helps you guys!!!
A 100-square grid has 70 shaded squares. Explain how you could express this model as a fraction, percent, and decimal
Answer:
the answer would be 70/100 in fraction form, 70% in percent, and (i believe) 0.7 min decimal form. Hope this helps!
Answer:
70 out of 100 is the ratio 70 Over 100 apostrophe , so it represents 70%. 70 Over 100 can be reduced by dividing the numerator and the denominator by 10 to get the reduced fraction 7 Over 10. Dividing 7 by 10 results in the decimal equivalent 0.70.
Step-by-step explanation:
Triangle ABC is similar to triangle ADE. Find x, the distance from point B to point C.
Answer:
30 feet^2
Step-by-step explanation:
eeeeet eeeees what eeeeet eeeees
a. [-1, 1]
b. [0, pi]
c. [-pi/2, pi/2]
d. -♾, ♾]
f(x) = sin(x)
Domain (–∞, ∞)
Range [–1, 1]
y = arcsine(x)
y = f–¹(x)
Domain [–1, 1]
Range [–π/2, π/2]
I need the answer quickly. 6(3-2)/6
Answer:
I think the answer would be 1
Step-by-step explanation:
1 is the answer
3-2=1
6(1)=6
6/6=1
Which function is represented by the graph
Answer: y = -2|x| + 1
Step-by-step explanation: it is an absolute value function, y = |x|, moved up one. then we see that it has been flipped. it has also been vertically stretched by a factor of 2.
need help with this please!!
Answer:
a 1/4 cuz perpendicular m × m original line is -1
A 3-column table with 3 rows. Column 1 is labeled Seller with entries wholesaler, Distributor, Retail Store. Column 2 is labeled markup with entries 0 percent, 100 percent, 80 percent. Column 3 is labeled Selling Price with entries 80 cents, A, B. A distributor buys packs of trading cards from a wholesaler for $0.80 each. The distributor marks up the cards by 100% before selling them to stores. How much does the distributor sell each pack of cards for? The stores then mark up the cards another 80% before selling them to customers. How much does the retailer sell a pack of cards for? A = B =
Answer:
Step-by-step explanation:
Answer:
$1.60
$2.88
Step-by-step explanation:
To find the selling price of the distributor and the retailer, we first need to find how much the distributor sells each pack of cards.
To find the selling price we use the formula.
Selling Price = Cost + Markup
Cost = $0.80
Markup rate = 100% or 1
Selling Price = 0.80 + (0.80*1)
Selling Price = $1.60
So the distributor sells each pack of cards at $1.60 to the retailer.
Now to find the selling of the retailer, we need to use the selling price of the distributor.
Cost = $1.60
Markup rate = 80% or 0.80
Selling price = 1.60 + (1.60 * 0.80)
Selling price = $2.88
So the retailer sells each pack of cards at $2.88 to the customers.
Answer:
A = $1.60
B = $2.88
Step-by-step explanation:
I did the work on brainly and got it right
Hope this helps :D
Watch help video
What is the surface area of the cylinder with height 2 km and radius 8 km? Round
your answer to the nearest thousandth.
Answer:
I think its 502.65 km 2
Step-by-step explanation:
(This is what I think, I might be wrong)
Answer:
502.655km
Step-by-step explanation:
Tatiana earns money by babysitting her little cousin. When she babysits for 2 hours she earns $27. When she babysits for 7 hours she earns $94.50. Which equation represents her total wages based on the hours that she works?
Answer:
36$
Step-by-step explanation:
I took the test
ILL MARK BRAINLIST!!!
Answer:
its 2
Step-by-step explanation:
If the ribbon cost 10￠ (0.10) per foot, what is the total cost of the ribbon in Dollars? Explain your reasoning.
Answer:
How many feet are you going to buy that is the real question.
Step-by-step explanation:
It depends on how many feet you buy.