Answers
Answer:
That's the answer attached, whatever answer matches up with it is correct.
Step-by-step explanation:
Related Questions
What is the slope of the line that contains the points (9, -4) and (1, -5)?
Answers
Answer:
m = 1/8
Step-by-step explanation:
m = y2-y1/x2-x1
m = -5+4/1-9
m = -1/-8
m = 1/8
Answer:
slope of line =y2-y1/x2-x1
lets consider (x1,y1)=(9,-4) so value of x1=9 and y1=-4
(x2,y2)=(1,-5) so value of x2=1 y=-5
answer =y2-y1/x2-x1=-5-(-4)/1-9=-1/-8
slope=1/8
i hope it helps
btw i am from india
Which expression is equivalent to 3x+4(3x+2) Responses
Answers
On simplifying the expression 4(3x + 2) it becomes equivalent to 12x + 8, that is, option D.
Here, we are given an expression- 4(3x + 2)
As we can see the expression has one variable, that is, x and rest all are constants.
Opening up the bracket and multiplying the constant term we get-
4*3x + 4*2
= 12x + 8
Since, only the like terms can be added together, we cannot simplify this expression further as they are not like terms, one is a constant and the other one is a variable.
Thus, we find that on simplifying the expression 4(3x + 2) it becomes equivalent to 12x + 8, that is, option D.
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Your question was incomplete. Check for full content below-
Which expression is equivalent to 4(3x + 2)?
A) 7x + 6
B) 7x + 6
C) 12x + 6
D) 12x + 8
Tameka owes 4 of her friends $20 each. How much money does tameka owe in total ?
Answers
Answer:
80
Step-by-step explanation:
Answer:
80$
Step-by-step explanation:
1 friend=20$
20$+20$+20$+20$
AKA 20x4
=80
Find the demand equation using the given information. (Let x be the number of items.) A company finds that it can sell 70 items at a price of $150 each and sell 90 items at a price of $140 each. D(x) = –.5x + 175 Additional Materials eBook 0/1 POINTS PREVIOUS ANSWERS | TEAFM2 1.1.010. Find the demand equation using the given information. (Let x be the number of items.) A company finds that at a price of $100 each it can sell 90 items. If the price is raised $50, then 20 fewer items are sold. D(x) = -2.5x + 350 Additional Materials
Answers
The demand equation is: D(x) = -0.5x + 145
2. The demand equation is: D(x) = -2.5x + 350
What is the demand equation?To find the demand equation, we need to determine how the quantity demanded (x) varies with price (p). We have been given two sets of price and quantity combinations, which we can use to form a system of linear equations:
70 items at $150 each, and 90 items at $140 each.
We can use these points to form two equations in slope-intercept form, y = mx + b, where y represents quantity demanded and x represents price:
70 = -0.5(150) + b
90 = -0.5(140) + b
Simplifying each equation, we get:
b = 145
b = 155
Therefore, the demand equation is:
D(x) = -0.5x + 145
90 items are sold at a price of $100 each, and 70 items are sold at a price of $150 - $50 = $100 each.
We can use these points to form two equations in slope-intercept form, y = mx + b, where y represents quantity demanded and x represents price:
90 = -2.5(100) + b
70 = -2.5(100 + 50) + b
Simplifying each equation, we get:
b = 350
b = 320
Therefore, the demand equation is:
D(x) = -2.5x + 350
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4 (3n- 5)?..........................................
Answers
Answer:
12n - 20Step-by-step explanation:
4(3n- 5) =
12n - 20
3. Solve the problem.In one area, the lowest angle of elevation of the sun in winter is 24°. Find the distance x that a plant needing full sun can be placed from a fence that is 10.5 feet high. Round your answer to the tenthsplace when necessary.
Answers
Answer:
The breakdown of the image of the question is given below as
Concept:
To figure out the value of x, we will use the trigonometric ratio below
\(\begin{gathered} \tan\theta=\frac{opposite}{adjacent} \\ opposite=10.5ft \\ adjacent=x \\ \theta=24^0 \end{gathered}\)By substituting the values, we will have
\(\begin{gathered} \tan\theta=\frac{oppos\imaginaryI te}{adjacent} \\ \tan24^0=\frac{10.5ft}{x} \\ \end{gathered}\)By cross multiplying the equation above, we will have
\(\begin{gathered} \tan24^0=\frac{10.5ft}{x} \\ x\times\tan24^0=10.5ft \\ divide\text{ both sides by tan24} \\ \frac{x\times\tan24^0}{tan24^0}=\frac{10.5ft}{\tan24^0} \\ x=23.58ft \\ x\approx23.6ft(nearest\text{ tenth\rparen} \end{gathered}\)Hence,
The final answer is
\(\Rightarrow x=23.6ft\)
the proportion of the variation in the values of a response y that is explained by the least-squares regression of y on x is:
Answers
The proportion of the variation in the values of a response y that is explained by the least-squares regression of y on x is: square of correlation coefficient.
What is square of correlation coefficient?
A helpful number in linear regression is the square of the correlation coefficient, or r2.
The percentage of the variance in one variable that can be partially explained by another variable is represented by this value.
The summary table in the Regression output contains the "R" value, which is the coefficient of correlation.
Coefficient of determination is another name for R square. To calculate R squared, multiply R by R.
The square of the correlation coefficient is what is meant by the term "coefficient of determination."
Hence, the proportion of the variation in the values of a response y that is explained by the least-squares regression of y on x is: square of correlation coefficient.
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randy wants to attach a 20 foot string of lights to the top of the 19 foot mast of his sailboat. how far from the base of the mast should he attach the end of the light string? round your answer to two decimal places.
Answers
The distance between the base of the string and the base of the mast of the sailboat is 6.24.
Here we have to find the distance from the base of the mast that should be attached to the end of the light string.
Data given:
length of the string = 20 foot
length of the mast of the sailboat = 19 foot
Distance between the base of the mast and the light string = \(\sqrt{20^{2} - 19^{2} }\)
= \(\sqrt{400 - 361}\)
= √39
= 6.245
Therefore the distance between the string and the mast is 6.24.
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Which best represents the solution to this system of equations?
Answers
Answer:
a. (3,-2) that is the answer
, I already study this lesson
What element is most important for the romantic artist?
Answers
The element of emotion is the most important for the romantic artist. Romantic artists are driven by powerful and passionate emotions, which they strive to capture and express in their work.
The ability to capture emotion is the cornerstone of romantic art and allows the artist to create works that evoke strong feelings in their viewers. This is often achieved through the use of vivid colors, dynamic compositions, and dynamic brushstrokes. By focusing on feeling and emotion, romantic artists create works that carry a powerful and lasting impact. This emotional impact is the ultimate goal of the romantic artist, as it allows them to truly connect with their audience in a meaningful way.
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Which of the six trigonometric functions has a period of \(2\pi\) and passes through the point \((\pi, 0)\)?
Answers
Answer:
i need points rq thanks so much
Step-by-step explanation:
imma go waste these points now
Answer:
x
Step-by-step explanation:
A line passes through the point (10,-8) and has a slope of -5/2. write an equation in point-slope form for this line.
Answers
Answer:
y= -5/2 + 17
Step-by-step explanation:
y=mx+b
-8=-5/2(10)+b
-8=-25+b
17=b
y = -5/2x + 17
why should a data analyst focus on sample size during the data collection process? select all that apply.
Answers
A data analyst should focus on sample size during the data collection process for several reasons like sample size plays a critical role in determining the accuracy and reliability of the data.
A small sample size may not provide a representative picture of the population being studied, leading to biased or skewed results.
On the other hand, a large sample size can increase the statistical power of the study and provide more precise estimates of the population parameters.Secondly, sample size is important in determining the appropriate statistical tests and methods that can be applied to the data. Different techniques are used depending on whether the sample size is small or large. For example, with a small sample size, non-parametric tests may be more appropriate, while with a large sample size, parametric tests can be used.Lastly, sample size can affect the generalizability of the results. If the sample size is too small, it may not be possible to generalize the findings to the entire population. In contrast, a large sample size increases the likelihood of generalizing the results to the broader population.In conclusion, the sample size is a critical consideration during the data collection process as it impacts the accuracy, reliability, statistical methods, and generalizability of the results.Know more about the statistical tests
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Tina wrote the equations 3 x minus y = 9 and 4 x + y = 5. What can Tina conclude about the solution to this system of equations?
Answers
Answer:
(2, –3) is a solution to the system of linear equations.
Step-by-step explanation:
Given: Equations:
3x - y = 9 --------(1),
4x + y = 5 --------(2),
Add Equation (1) + Equation (2),
3x + 4x = 9 + 5
7x = 14 ( Combine like terms )
x = 2 ( Divide both sides by 7 ),
From equation 1:
3(2) - y = 9
6 - y = 9
-y = 9 - 6 ( Subtraction 6 on both sides )
-y = 3
y = - 3 ( Multiplying -1 on both sides )
Add:
\(4 { x }^{ 2 } y+-3x { y }^{ 2 } +-5x { y }^{ 2 } +5 { x }^{ 2 } y\)
Answers
Step-by-step explanation:
\(4\)
\(4 {x}^{2} - 3x {y}^{2} \)
(3m + 3) +(-4m + 3) plzzzz helllpppppp
Answers
Answer:
m + 6
Step-by-step explanation:
3m + -4m = 1m = m
3 + 3 = 6
Tyler is selling tickets for a school play and chargers t dollars fro adult tickets and $5 for child tickets. on Monday, he sold 12 child tickets and 9 adult tickets. on Tuesday he sold 20 child tickets and 4 adult tickets. if Tyler made the same amount of money on both days, fine the price for an adult ticket.
Answers
Tyler charges $8 for an adult ticket.
It is given that Tyler charges $t for adult tickets and $5 for child tickets.
No. of tickets sold by him on Monday is 12 child tickets and 9 adult tickets.
No. of tickets sold by him on Tuesday is 20 child tickets and 4 adult tickets.
Therefore,
Tyler earned $12 X 5 + $9 X t on Monday
= $9t + $60
Tyler earned $20 X 5 + $4 X t on Tuesday
= $4t + $100
According to the problem, the earnings on both the days are same. Hence we get the linear equation as follows
9t + 60 = 4t + 100
bringing all the variables, i.e t's to LHS and constants to RHS we get
9t - 4t = 100 - 60
or, 5t = 40
Bringing 5 to RHS we get
t = 40/5
or, t = 8
Therefore, t = $8
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2(3 + 2) whats the answer lol
Answers
Answer:
10 thats the answer
Step-by-step explanation:
3+2=5×2=10
Given that loga(4)≈0.86 and loga(3)≈0.68, evaluate each of the following. Hint: use the properties of logarithms to rewrite the given logarithm in terms of the the logarithms of 4 and 3 . a) loga(256)≈ b) loga(48)≈ c) loga(0.75)≈ d) loga(12)≈ e) loga(3
)≈ f) loga(2.25)≈
Answers
The values of the given logarithmic functions are as follows:loga (256) ≈ 3.44loga (48) ≈ 2.4loga (0.75) ≈ -0.18loga (12) ≈ 1.54loga (3) ≈ 0.68loga (2.25) ≈ 0.5Total words used = 116
To find the values of the given logarithmic functions, we need to use the properties of logarithms and rewrite each of the logarithmic functions in terms of the logarithms of 4 and 3.Logarithmic properties used:
\(Property 1: loga b^c = c loga b\)
Property 2: loga b + loga c = loga (b*c)
Property 3: loga b - loga c = loga (b/c)
Let's now evaluate each of the given logarithmic functions using these properties.
a) loga (256)
We know that 256 is a power of 4, so let's write 256 as 4^4.
Therefore, loga (256) = loga (4^4) = 4 loga 4.
Using the hint given, loga(4)
≈0.86,
we can write loga 4 = 0.86
Therefore, loga (256) ≈ 4 x 0.86 = 3.44Answer: loga (256) ≈ 3.44b) loga (48)We can write 48 as 3 * 16.
Therefore, loga (48) = loga (3*16) = loga 3 + loga 16.
Using the hint given, loga(3)
≈0.68 and loga 16
= loga (4^2) = 2 loga 4,
we can write loga 16 = 2 x 0.86
= 1.72
Therefore, loga (48) = 0.68 + 1.72 = 2.4
Answer: loga (48) ≈ 2.4c) loga (0.75)We can write 0.75 as 3/4.
Therefore, loga (0.75)
= loga (3/4)
= loga 3 - loga 4
Using the hint given, loga(4)≈0.86 and loga(3)≈0.68,
we can write loga 3 = 0.68 and loga 4 = 0.86
Therefore, loga (0.75) = 0.68 - 0.86 = -0.18
Answer: loga (0.75) ≈ -0.18d) loga (12)
We can write 12 as 3*4.
Therefore, loga (12)
= loga (3*4)
= loga 3 + loga 4
Using the hint given, loga(4)
≈0.86 and loga(3)
≈0.68, we can write loga 3
= 0.68 and loga 4
= 0.86
Therefore, loga (12)
= 0.68 + 0.86 = 1.54
Answer: loga (12)
≈ 1.54e) loga (3)
Given that loga(3)
≈0.68, loga (3)
≈ 0.68Answer: loga (3)
≈ 0.68f) loga (2.25)
We can write 2.25 as 9/4.
Therefore, loga (2.25)
= loga (9/4) = loga 9 - loga 4
Using the hint given, loga(4)
≈0.86 and loga(3)
≈0.68, we can write loga 9
= 2 loga 3
= 2 x 0.68
= 1.36 and loga 4
= 0.86
Therefore, loga (2.25)
= 1.36 - 0.86
= 0.5Answer: loga (2.25)
≈ 0.5
Therefore, the values of the given logarithmic functions are as follows: loga (256) ≈ 3.44loga (48) ≈ 2.4loga (0.75) ≈ -0.18loga (12) ≈ 1.54loga (3) ≈ 0.68loga (2.25) ≈ 0.5
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Target hs apple watches on sale this week for $349 and you get an additional 5% off if you use our red card. Best buy sells them for $389 and you have a coupon for 15% off. How much money would you save by purchasing the watch from the store with the better buy?
Answers
Given :
Target have apple watches on sale this week for $349 and you get an additional 5% off if you use our red card. Best buy sells them for $389 and you have a coupon for 15% off.
To Find :
How much money would you save by purchasing the watch from the store with the better buy.
Solution :
Selling price at Target :
S.P = $( 349 - 349×0.05)
S.P = $331.55
Selling price at Best buy :
S.P = $( 389 - 389×0.15 )
S.P = $330.65
Amount of price saved = $( 331.55 - 330.65 ) = $0.9 .
Hence, this is the required solution.
4th question help plzz with steps
I give brainly
Answers
Answer:
72 degrees
Step-by-step explanation:
A central angle equals the degree of the arc.
If the circumference is 20 and the arc is 4 than means the
arc is 4/20= 1/5 of the circumference.
A circles circumference is also always equal to 360 degrees.
So we need to find out what 1/5 of 360 is to find the degree of the arc.
So then 1/5*360= 72
so the Arc is equal to 72 degrees of the whole circle, which means the central angle is equal to 72 degrees as well.
Find |23|. plz i will give brainly
Answers
Answer:
23
Step-by-step explanation:
the absolute value of any number is just the positive form of that number.
baddeley and hitch asked rugby players to remember all of the rugby games they had played over the course of a single season. according to their data, which is the most important factor in determining whether the players will remember a particular game?
Answers
According to Baddeley and Hitch's research, the most important factor in determining whether rugby players will remember a particular game is the amount of time that has elapsed since the game was played.
Specifically, players were more likely to remember games that occurred early in the season and those that were particularly important or emotionally charged, while they were less likely to remember games that occurred later in the season or those that were less meaningful or emotionally significant.
This phenomenon is known as the "serial position effect" and has been observed in other contexts as well.
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Will give brainly pls help me. It's attached below.
Answers
Answer:
It would be answer C
A) 100km ( not sure)
Select the correct answer from each drop-down menu.
The perimeter of an equilateral triangle is 24 centimeters. Each side of the triangle measures 2.5 centimeters more than the length of each side of a square. The length of each side of the square is
centimeters, and the length of each side of the triangle is
centimeters. The perimeter of the square is
centimeters.
Answers
The length of each side of the square is 5.5 centimeters and the length of each side of the triangle is 8 centimeters. The perimeter of the square is 22 centimeters.
How to calculate perimeter?Perimeter of the equilateral triangle = 24 centimetersAn equilateral triangle has 3 equal sidesEach side of the triangle = Perimeter of the equilateral triangle ÷ number of sides
= 24 / 3
= 8 centimeters
Each side of the square = sEach side of the triangle = 2.5 + sSo
8 = 2.5 + s
Subtract 2.5 from both sides
8 - 2.5 = s
5.5 centimeters = s
The perimeter of the square = 4 × s
= 4 × 5.5
= 22 centimeters.
Therefore, the Length of each side of a square = 5.5cm, Length of each side of a triangle = 8cm, and Perimeter of the square = 22cm
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Answer: 5.5, 8, and 22 centimeters
3. Find the area of the rectangle with length 29 yards and width 45 yards.
74 yd?
1,305 yd?
148 yd
13,050 yd?
Answers
3Answer: 1305yard²
Step-by-step explanation:
Area is length multiplied by the width
29 × 45 =
2/11 + 3/5 in it's simplest form
Answers
Answer:
43/55
Step-by-step explanation:
2/11 x 5 + 3/5 x 11
10/55 + 33/55
43/55
Answer:
Step-by-step explanation:
2/11x5/5=10/55
3/5x11/11=33/55
10/55+33/55=43/55
The death rates in the united states decreased more than 40 percent from 1930 to 2015. which factor could have contributed to this decrease?
Answers
Improved public health care, sanitation, nutrition, and medical technology are likely factors that have contributed to the 40% decrease in death rates in the United States from 1930 to 2015.
Improved access to health care and medical technology have allowed for more effective treatments of illnesses and diseases, while improved sanitation, nutrition, and access to clean water have reduced the prevalence of communicable diseases. Additionally, advances in public health awareness, such as the introduction of mandatory vaccinations, have also played a role in reducing death rates.
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the sum of 4 and the second power of b is equal to 104. write as an equation
Answers
Answer:
4 + b² = 104
Hope this helps. :)
Answer:
b^{2} + 4 = 104.
Step-by-step explanation:
The sum of 4 and the second power of b basically means 4 + b^2.
b^2 + 4 = 104
\(b^{2} + 4 = 104\)
b^2 = 100
b = plus or minus 10.
Hope this helps!
An analyst from an energy research institute in California wishes to estimate the 95% confidence interval for the average price of
unleaded gasoline in the state. In particular, she does not want the sample mean to deviate from the population mean by more than
$0.04. What is the minimum number of gas stations that she should include in her sample if she uses the standard deviation estimate
of 50.24, as reported in the popular press? (You may find it useful to reference the z table. Round intermediate calculations to at
least 4 decimal places and" value to 3 decimal places. Roundp your answer to the nearest whole number.)
Answers
The analyst should include at least 60,088 gas stations in her sample to estimate the 95% confidence interval for the average price of unleaded gasoline with a maximum deviation of $0.04.
To estimate the 95% confidence interval for the average price of unleaded gasoline in California with a maximum deviation of $0.04, we need to determine the minimum number of gas stations to include in the sample. We'll use the standard deviation estimate of 50.24 and the z table.
Step 1: Determine the z-score for a 95% confidence interval. You can find this in a z table or use a calculator. The z-score is 1.96.
Step 2: Use the margin of error formula:
The margin of error = \(Z(\frac{Standard Deviation}{\sqrt{(Sample Size)}})\)
Step 3: Plug in the given values and solve for the Sample Size (n):
$0.04 = \(1.96(\frac{50.24}{\sqrt{(n)}})\)
Step 4: Rearrange the formula to solve for n:
\(n=[\frac{ (1.96)(50.24)}{ 0.04}]^2 = 60087.69\)
Round up to the nearest whole number:
n ≈ 60088
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