The correct statement is ''Lin can walk southwest by creating an obtuse triangle to reach his house from the gym'' and it can be determined by using the properties of triangle.
We have to determine
What general direction did Lin walk from the gym to his house, and what type of triangle did his walking path form?
According to the question,
Types of Triangle;1. Lin walked south, creating a right triangle-
When someone walked in only one direction then a straight line is made by him over his path.
Here Lin can not make a right triangle just by walking in one direction.
Thus statement 1 is incorrect.
2. Lin walked southwest, creating an obtuse triangle.
When someone wants to reach a diagonal direction he can use either the right angle triangle path or the obtuse triangle.
Lin can walk southwest by creating an obtuse triangle to reach his house from the gym.
Thus statement 2 is correct.
3. Lin walked southeast, creating an acute triangle.
Actuate triangle is a triangle in which all three angles are less than the right angles (90 degrees).
With walking in actuate triangle one can make Lin can not go in his diagonal direction.
Thus statement 3 is incorrect.
4. Lin walked directly east, creating a right triangle.
When someone walked in only one direction then a straight line is made by him over his path.
Here Lin can not make a right triangle just by walking in one direction.
Thus statement 4 is incorrect.
Hence, Lin can walk southwest by creating an obtuse triangle to reach his house from the gym. Thus statement 2 is correct.
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Answer:
its B Lin walked southwest, creating an obtuse triangle
Help me please >:] Angles suck
(Hey, angles rock!)
Answer:
45 + 60 = 105
Step-by-step explanation:
ABC consists of two angles, angle ABD and angle DBC. Therefore, the sum of the measures of angles ABD and DBC is the measure of ABC.
45 + 60 = 105
probability spinning a 6 and flipping tails
Answer:
Probability of spinning a six, and I'm guessing on a spinner with six numbers would be 1 and 6, 1:6, or 1/6. Flipping tails would be 1 and 2, 1:2, or 1/2
Step-by-step explanation:
A man walks directly from paint A towards the foot of a tall building 240m away. After covering 180m, he observes that the angle of the top of the building is 45. (3 marks) Determine the angie of elevation of the top of the building from A.
Using trigonometry, the angle of elevation of the top of the building from A is 36.87 degrees
What is the angle of elevation of the top of the building from A?The angle of elevation of the building from A, we can apply the concept of trigonometry;
tan(θ) = opposite/adjacent
tan(θ) = height/180m
Since we're given that the angle of the top of the building is 45 degrees when the man is 180m away from point A, we can set up the equation:
tan(45°) = height/180m
The tangent of 45 degrees is 1, so the equation becomes:
1 = height/180m
Solving for the height:
height = 180m
Using the tangent of the angle;
tan(θ) = height/distance
tan(θ) = 180m/240m
Simplifying:
tan(θ) = 0.75
θ = tan⁻¹(0.75)
θ = 36.87 degrees
Therefore, the angle of elevation of the top of the building from point A is approximately 36.87 degrees.
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Juan wants to buy a guitar. The regular price of the guitar is $329.99. The sales price of the guitar is 25% off of the regular price. Juan most Pat 7.25% sales tax in addition to the sales price of the guitar. What is the total amount Juan must pay for the guitar?
The supplied document states that Juan must pay $265.32 in total for the instrument.
By sales, what do you mean?Any transaction in which goods or services are exchanged for cash is referred to as a sale. In other words, a transaction is any activity that involves transferring ownership of a good or service to the buyer in exchange for cash.
The instrument costs $329.99 at standard pricing.
$329 * 25% = $82.50
The guitar's discount price is thus $329.99 less $82.50, or $247.49.
7.25% of the purchase price is used to compute sales tax.
Therefore, $247.49 * 7.25% = $17.83
As a result, we eventually tack on the taxation to the purchase price to determine Juan's final obligation to pay for the guitar.
$247.49 + $17.83 = $265.32
The total price that Juan shall pay for something like the guitar is thus $265.32.
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X 5 X6 7 8 A garden table and a bench cost $659 combined. The garden table costs $91 less than the bench. What is the cost of the bench?
Answer:
The bench was $375 and the garden table was $284.
Step-by-step explanation:
Let x be the value of the bench, if the table is 91 less than the value of the bench then the equation can be:
x + x-91 = 659
2x -91 = 659
Add 91 to both sides of the equation to isolate the 2x:
2x - 91 + 91 = 659 + 91
2x = 750
Divide both sides by 2 to get 1x:
2x ÷ 2 = 750 ÷ 2
x = 375
This means the bench was $375 and the garden table was $284.
Hope this helps!
A bouquet of flowers weighs approximately 4. 3 × 104 milligrams. The bouquet has two daisies, each weighing 7. 5 × 102 milligrams.
If the daisies were removed from the bouquet, the bouquet would weigh p × 10q grams, where p is
and q is
A bouquet of flowers weighs approximately 4.3 × 10⁴ milligrams. The bouquet has two daisies, each weighing 7.5 × 10² milligrams.
If the daisies were removed from the bouquet, the bouquet would weigh p × 10q grams, where p is 4.3 × 10¹ and q is 2. First, subtract the weight of two daisies from the weight of the bouquet to find the remaining weight of the bouquet as follows:
Weight of two daisies = 2 × 7.5 × 10² milligrams
= 1.5 × 10³ milligrams
Weight of the bouquet without the daisies = Weight of the bouquet - Weight of two daisies
= (4.3 × 10⁴) - (1.5 × 10³) milligrams
= 4.15 × 10⁴ milligrams
Convert milligrams into grams as follows: 1 gram = 10³ milligrams
Hence, 1 milligram = (1/10³) grams
Multiply the weight of the bouquet without the daisies by this conversion factor to get the weight of the bouquet in grams as follows:
Weight of the bouquet in grams= (4.15 × 10⁴) × (1/10³) grams
= 4.15 × 10¹ grams
Therefore, the bouquet would weigh p × 10q grams, where p is 4.3 × 10¹ and q is 2, if the daisies were removed from the bouquet.
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Find the total surface area of this cone.
Leave your answer in terms of 7.
12cm
5cm
SA = [?]7 cm2
Hint: Surface Area of a Cone = tre + B
Where e = slant height, and B = area of the base
Answer:
Step-by-step explanation:
Total surface area of a cone is given by the expression,
SA = πrl + B
Here, r = Radius of the circular base
l = slant height
B = Surface area of the base
Surface area of the circular base = πr²
= π(5)²
= 25π cm²
Slant height 'AC' = \(\sqrt{AB^2+BC^2}\)
= \(\sqrt{h^2+r^2}\)
= \(\sqrt{5^2+(12)^2}\)
= 13 cm
Substitute the values in the expression of surface area,
SA = π(5)(13) + 25π
= 65π + 25π
= 90π cm²
Therefore, SA = 90π cm² will be the answer.
he mean salary at a local industrial plant is $27,600 with a standard deviation of $5400 . the median salary is $25,200 and the 61st percentile is $29,100 . step 5 of 5: if tom's salary has a z-score of 0.7 , how much does he earn (in dollars)?
He mean salary at a local industrial plant is $27,600 with a standard deviation of $5400 . the median salary is $25,200 and the 61st percentile is $29,100, The amount Tom earns (in dollars) is $31,590.
How do we calculate the amount Tom earns?Given that, the mean salary at a local industrial plant is $27,600The standard deviation of salary is $5400The median salary is $25,200The 61st percentile is $29,100We have to find the amount that Tom earns (in dollars) if Tom's salary has a z-score of 0.7.
We need to calculate the z-score using the formula,\(Z = (X - \mu) / \sigma\), where X is the value, μ is the mean and σ is the standard deviation. \(z = (X - \mu) / \sigma 0.7 = (X - 27,600) / 5,400\) Multiplying both sides by 5,400, we get,0.7 × 5,400 = X - 27,600 Add 27,600 on both sides, we get, \(X = (0.7 * 5,400) + 27,600= 3,780 + 27,600= $31,590\) Therefore, The amount Tom earns (in dollars) is $31,590.
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The function h(x) = -4.9x^2 +20x + 2 represents the height of a model rocket x seconds after the rocket is fired
Answer:
Step-by-step explanation:
4.2 seconds
If the odds against an event are 4:7, then the probability that the event will fail to occur is
The odds against an event is 4:7
Unfavourable elements for the event = 4
Favourable elements for the event = 7
Total = 4 + 7 = 11
Hence the probability that the event will fail = 4/11.
16. (1 point) The inflation gap π
3
−π
1
is 0. 3 A> B< C= D incomparable with 17. (1 point) Does this policy create "divine coincidence"? A Yes B No
The answer to the question above is C which is equal to (=) is the symbol that represents the answer to the inflation gap π3−π1.
The correct option is-C
It is important to know that Inflation gap refers to the difference between actual inflation and target inflation. Inflation gaps are also associated with inflation targeting. Inflation targeting is a monetary policy where a central bank tries to keep inflation within a particular range by adjusting interest rates. If inflation is too high, the central bank will increase interest rates to cool off the economy and prevent prices from rising too quickly.
Inflation gaps are also associated with inflation targeting. Inflation targeting is a monetary policy where a central bank tries to keep inflation within a particular range by adjusting interest rates. If inflation is too high, the central bank will increase interest rates to cool off the economy and prevent prices from rising too quickly. If inflation is too low, the central bank will lower interest rates to encourage borrowing and spending, which will stimulate the economy and boost prices. According to the question, the inflation gap π3−π1 is 0.
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both questions are on the picture
Answer:
the first one is m, the second one is 5
Answer:
m and 5
Step-by-step explanation:
variable=the letter
m
coefficient= the number before the letter
5
Solve this polynomial equation by rearrranging it in the correct order:
23 + 3x2 = 10.2
1. x = 0, x = -2, x = 5
1 2. 23 + 3x2 – 10x = 0
13. x = 0, 3 – 2=0, x + 5 = 0
1 4. x(x − 2)(x+5) =
15. z (x² + 3x – 10) = 0
Answer:
1. x = 0
12. x = 3
13. x = 0
14.
helppppppppppppppppppppp
Birth weights in the United States have a distribution that is approximately normal with a mean of 3369 g and a standard deviation of 567 g.
a) One definition of a premature baby is that the birth weight is below 2500 g. Draw the normal distribution (with appropriate labels) and shade in the area that represents birth weights below 2500 g. Convert 2500 g into a standard score. If a baby is randomly selected, find the probability of a birth weight below 2500 g.
b) Another definition of a premature baby is that the birth weight is in the bottom 10%. Find the 10th percentile of birth weights.
c) If 40 babies are randomly selected, find the probability that their mean weight is greater than 3400 g.
A Gallup survey indicated that 72% of 18- to 29-year-olds, if given a choice, would prefer to start their own business rather than work for someone else. A random sample of 400 18- to 29-year-olds is obtained today.
a) Describe the sampling distribution of p, the sample proportion of 18- to 29-year-olds who would prefer to start their own business.
b) In a random sample of 400 18- to 29-year-olds, what is the probability that no more than 70% would prefer to start their own business?
c) Would it be unusual if a random sample of 400 18- to 29-year-olds resulted in 300 or more who would prefer to start their own business? Why?
This means that ahis means that a sample of 400 18- to 29-year-olds resulting in 300 or more who would prefer to start their own business is not unusual
a) One definition of a premature baby is that the birth weight is below 2500 g. The z-score is given as follows:$z = \frac{2500 - 3369}{567} = -15.3$Using the standard normal distribution table, we find that $P(Z < -15.3)$ is essentially 0. The probability of a birth weight below 2500 g is practically zero.b) Another definition of a premature baby is that the birth weight is in the bottom 10%. To find the birth weight that corresponds to the 10th percentile, we need to find the z-score that corresponds to the 10th percentile using the standard normal distribution table. The z-score is -1.28$z = -1.28 = \frac{x - 3369}{567}$Solve for x to get $x = 2669$ g. Thus, the 10th percentile of birth weights is 2669 g.c) If 40 babies are randomly selected, find the probability that their mean weight is greater than 3400 g. The standard error is $SE = \frac{567}{\sqrt{40}} = 89.4$ g. We can standardize the variable as follows:$z = \frac{3400 - 3369}{89.4} = 0.35$Using the standard normal distribution table, the probability of obtaining a z-score greater than 0.35 is 0.3632. Thus, the probability that their mean weight is greater than 3400 g is 0.3632. This can be interpreted as there is a 36.32% chance that a sample of 40 babies will have a mean birth weight greater than 3400 g.d) For this problem, we are given that $p = 0.72$, the proportion of 18- to 29-year-olds who would prefer to start their own business. Since $n = 400 > 30$, we can use the normal distribution to approximate the sampling distribution of $p$. The mean of the sampling distribution is given by $\mu_{p} = p = 0.72$, and the standard deviation of the sampling distribution is given by $\sigma_{p} = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.72(0.28)}{400}} = 0.032$. Thus, the sampling distribution of $p$ is approximately normal with mean 0.72 and standard deviation 0.032.e) To find the probability that no more than 70% of the sample would prefer to start their own business, we need to standardize the variable as follows:$z = \frac{0.70 - 0.72}{0.032} = -0.63$Using the standard normal distribution table, the probability of obtaining a z-score less than -0.63 is 0.2652. Thus, the probability that no more than 70% of the sample would prefer to start their own business is 0.2652.f) To determine whether a sample of 400 18- to 29-year-olds resulting in 300 or more who would prefer to start their own business is unusual, we need to find the z-score:$z = \frac{0.75 - 0.72}{0.032} = 0.9375$Using the standard normal distribution table, the probability of obtaining a z-score greater than 0.9375 is 0.1736.
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Ryan invested \$4,800$4,800 in an account in the year 1990, and the value has been growing exponentially at a constant rate. The value of the account reached \$6,300$6,300 in the year 1998. Determine the value of the account, to the nearest dollar, in the year 2007.
well, from 1990 to 1998 is 8 years, and we know the amount went from $4800 to $6300, let's check for the rate of growth.
\(\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$6300\\ P=\textit{initial amount}\dotfill &\$4800\\ r=rate\to r\%\to \frac{r}{100}\\ t=\textit{years}\dotfill &8\\ \end{cases} \\\\\\ 6300=4800(1 + \frac{r}{100})^{8} \implies \cfrac{6300}{4800}=(1 + \frac{r}{100})^8\implies \cfrac{21}{16}=(1 + \frac{r}{100})^8\)
\(\sqrt[8]{\cfrac{21}{16}}=1 + \cfrac{r}{100}\implies \sqrt[8]{\cfrac{21}{16}}=\cfrac{100+r}{100} \\\\\\ 100\sqrt[8]{\cfrac{21}{16}}=100+r\implies 100\sqrt[8]{\cfrac{21}{16}}-100=r\implies \stackrel{\%}{3.46}\approx r\)
now, with an initial amount of $4800, up to 2007, namely 17 years later, how much will that be with a 3.46% rate?
\(\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &4800\\ r=rate\to 3.46\%\to \frac{3.46}{100}\dotfill &0.0346\\ t=years\dotfill &17\\ \end{cases} \\\\\\ A=4800(1 + 0.0346)^{17} \implies A=4800(1.0346)^{17}\implies A \approx 8558.02\)
simplify : 5y-2y+4=10
Answer:
\(3y = 6,=> y=2\)
Step-by-step explanai
on:
Ifü= (-8.-20) and w = (-3,-1) a. Find the magnitude and direction of W. Round your direction to the nearest tenth of a degree. TVI b. Findū – 6w c. Find the angle between u and w
Given the vectors u = (-8, -20) and w = (-3, -1), we can perform various calculations to determine the magnitude and direction of w, find the vector u - 6w, and determine the angle between u and w.
a. To find the magnitude of vector w, we can use the formula: ||w|| = sqrt(w1^2 + w2^2), where w1 and w2 are the components of vector w. The direction of vector w can be found by using the formula: theta = atan(w2/w1), where theta represents the angle in radians. To convert radians to degrees, we can multiply theta by 180/pi and round it to the nearest tenth.
b. To calculate u - 6w, we subtract six times each component of vector w from the corresponding component of vector u. The resulting vector will have components that are the differences of the respective components of u and 6w.
c. To find the angle between vectors u and w, we can use the formula: theta = acos((u . w) / (||u|| * ||w||)), where "." denotes the dot product of u and w. The angle theta represents the angle between the two vectors in radians. To convert radians to degrees, we can multiply theta by 180/pi.
By performing these calculations, we can determine the magnitude and direction of vector w, find the vector u - 6w, and calculate the angle between vectors u and w.
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A hot air balloon is drifting at an altitude on
on is drifting at an altitude of 2550 ft. The balloon needs to descend to an altitude of
0 it. How many feet must the balloon descend?
Answer:
2550 ft
Step-by-step explanation:
The difference between 2550 ft and 0 ft is 2550 ft.
The balloon must descend 2550 ft to reach an altitude of 0 ft.
what is this polygon called and is it a regular polygon or irregular polygon
Answer:
hexagon because it have 6 sides
Step-by-step explanation:
it is irregular because it sides are not equal
THIS POLYGON IS IRREGULAR BECAUSE THIS IS HEXAGON AND IT IS IRREGULAR
an hexagon is a six sided irregular polygon
What is polygon?
a simple closed curve which does not interest itself made up if only line system is called a polygon
REGULAR POLYGON- polygon whose all side are of equal length and all angles are of equal measure
are called regular polygon
EX - SQUARE
IRREGULAR POLYGON- polygon which are not regular are called a regular polygon quadrilateral and Isosceles triangle is an example
4+3 (x+2) simplify the expression
Answer:
4+3x+6
10+3x
this is the answer
Answer: 3x+10
Step-by-step explanation:
Distribute:
=4+(3)(x)+(3)(2)
=4+3x+6
Combine Like Terms:
=4+3x+6
=(3x)+(4+6)
=3x+10
what is m^2+3m when m=4. What is the answer to x?
Answer:
28
Step-by-step explanation:
(4)^2+3(4)
16 + 12
28
hi <3
i'm not sure where the x fits into this so i'll ignore that part.
simply substitute m into the equation and solve
(4)^2 + 3(4) = 16 + 12 = 28
your answer is 28
hope this helps :)
Eight families live on abbie's street. she asks each family how many pets they have. abbie's data set is: 0, 0, 1, 1, 2, 2, 2, 5. the modal number of family pets on abbie's street is:__________
Answer:
Step-by-step explanation:
It is asking for the "mode" which is the data element you see the most, therefore it is 2.
a company produces very unusual CD's for which the variable cost is 8$ per CD and the fixed costs are $30000. They will sell the CD's for $63 each. Let x be the number of CD's produced. Write the total cost C as a function of the number of CD's produced.C=$___Write the total revenue R as a function of the number of CD's produced R=$_______Write the total profit P as a function of the number of CD's producedP=$______Find the number of CD's which must be produced to break even.The number of CD's which must be produced to break even is_______
Remember that to model this kind of problems, we can use the equation of a straight line
\(y=mx+b\)Where:
• b, are the fixed costs
,• x ,represents what varies
,• m, is the cost of what varies
1. Therefore, using the data provided, we can model the cost of production with a function where:
• x ,is the numbers of CD's produced
,• C, is the cost of producing those CD's
\(C=8x+30000\)2. To model the revenue, we'll have to take into account that every CD sells at $68. Therefore, the money collected by selling the x CD's produced is:
\(R=63x\)Where:
• x ,its the number of CD's produced and sold
,• R, is the total revenue
3. To get the profit, we'll have to substract the production cost to the money collected by the sale. Remember we already have two expressions, in terms of x, that describe both situations. Therefore,
\(\begin{gathered} P=R-C \\ \rightarrow P=63x-(8x+30000)\rightarrow P=63x-8x-30000 \\ \rightarrow P=55x-30000 \end{gathered}\)Where:
• x ,its the number of CD's produced and sold
,• P, is the total revenue
4. In order to break even, the revenue (R) has to be equal to the cost of production (C), Thus,
\(\begin{gathered} R=C\rightarrow63x=8x+30000 \\ \rightarrow63x-8x=30000 \\ \rightarrow55x=30000\rightarrow x=\frac{30000}{55} \\ x=545.5 \\ \text{Rounding to closest integer,} \\ x=546 \end{gathered}\)Therefore, 546 CD's would have to be produced to break even.
Select all the true statements.
(1048 – 876) ÷ 4 is four times as large as (1048 – 876).
(1048 – 876) + 24 is 24 times as large as (1048 – 876).
(1048 – 876) – 17 is seventeen less than (1048 – 876).
1/2 × (1048 – 876) is half as large as (1048 – 876).
(1048 – 876) × 4 is four more than (1048 – 876).
Answer:
C and D are are the true statements
NEED THE ANSWER IN 23 MIN Paul wanted to know about how much time students in his school spent studying. From a list of student names, he chose a name at random from the list, and then every sixth student after that continuing through the list until he came back to the name he started with. Was Paul’s survey a random survey, and if so, which sampling method did he use? A. Yes, Paul used simple random sampling. B. Yes, Paul used systematic random sampling. C. Yes, Paul used stratified random sampling. D. No, Paul’s survey was not a random sample.
Answer:C
Step-by-step explanation:
Answer:
It is C. Yes, Paul used stratified random sampling.
Step-by-step explanation:
Solve by using substitution
x=3y-1
x+2y=9
Answer:
x=3y−1x=3y-1
x+2y=9x+2y=9
Replace all occurrences of xx with 3y−13y-1 in each equation.
Tap for fewer steps...
Replace all occurrences of xx in x+2y=9x+2y=9 with 3y−13y-1.
(3y−1)+2y=9(3y-1)+2y=9
x=3y−1x=3y-1
Add 3y3y and 2y2y.
5y−1=95y-1=9
x=3y−1x=3y-1
Solve for yy in the first equation.
Tap for fewer steps...
Move all terms not containing yy to the right side of the equation.
Tap for fewer steps...
Add 11 to both sides of the equation.
5y=9+15y=9+1
x=3y−1x=3y-1
Add 99 and 11.
5y=105y=10
x=3y−1x=3y-1
Divide each term by 55 and simplify.
Tap for fewer steps...
Divide each term in 5y=105y=10 by 55.
5y5=1055y5=105
x=3y−1x=3y-1
Cancel the common factor of 55.
Tap for fewer steps...
Cancel the common factor.
5y5=1055y5=105
x=3y−1x=3y-1
Divide yy by 11.
x=5,y=2
Step-by-step explanation:
please mark me as brainliest thank you
Which of the following is equivalent to 6-3?
A
-1/216
B
216
C
-216
D
1/216
Answer: Im not sure if this is correct I just need points. B
Step-by-step explanation:
Option D is correct, 1/216 is the equivalent expression of 6⁻³ .
The given expression is 6⁻³.
Six to the power of minus three.
We have to find the equivalent expression.
Equivalent expression are expressions whose value is same but looks different.
6⁻³ can be written as 1/6³.
1/6×6×6
1/216.
Hence, 1/216 is the equivalent expression of 6⁻³ .
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-5.025, -square root of 25, -5 1/2, -11/2 least you greatest
answer =-51/2,-11/2,-5.025,-✓25
-✓25=-5
-11/2=-5.5
-51/2=-25.5
-5.025
2. Find the slope of each line.
Answer:
6/2 or 3
Step-by-step explanation:
count the amount it rises and put that over the amount it moves on x axis or the run.
Answer: The equation would be written as Y=3/1x, and your slope would be 3/1
Step-by-step explanation: