The AA Similarity Theorem states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar. We can complete the figure by drawing a line segment of length 10.5 from point A to point H.
Using this theorem, we can write the following if-then statement to describe the given illustration:
If angle RH is congruent to angle A and angle NH is congruent to angle E, then triangle PHN is similar to triangle AHE.
This means that the corresponding sides of these triangles are proportional to each other. We can use this information to complete the figure by finding the length of side AH.
Since triangle PHN is similar to triangle AHE, we can set up the following proportion:
PH/AH = HN/HE
We know that PH = 6 and HN = 8, and we want to find AH. Let x represent the length of AH.
6/x = 8/14
Cross-multiplying gives us:
6 * 14 = 8 * x
Simplifying:
84 = 8x
Dividing both sides by 8:
x = 10.5
Therefore, we can complete the figure by drawing a line segment of length 10.5 from point A to point H.
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A snack mix recipe calls for 5 3/4 cups of cereal and 3 5/12 cups less of raisins. how many cups of raisins are needed? write in simplest form
Answer is 7/3 cups.
To determine the amount of raisins needed for the snack mix, subtract 3 5/12 cups from 5 3/4 cups of cereal.
First, convert the mixed numbers to improper fractions:
5 3/4 = (5 × 4 + 3)/4 = 23/4
3 5/12 = (3 × 12 + 5)/12 = 41/12
Next, subtract the two fractions:
23/4 - 41/12
To subtract, find a common denominator. The least common multiple of 4 and 12 is 12. Convert both fractions to equivalent fractions with a denominator of 12:
(23/4) × (3/3) = 69/12
(41/12) × (1/1) = 41/12
Now, subtract the fractions:
69/12 - 41/12 = 28/12
Finally, simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor (4):
28/12 = (28 ÷ 4)/(12 ÷ 4) = 7/3
So, you need 7/3 cups of raisins for the snack mix.
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Use technology to answer the following questions.
The times (in seconds) for the CGHS swimmers in the
50m freestyle event are given below:
61 58 59 63 71 63 60 62 60 65 81 58 62
1) Use the Desmos Calculator to find the important
values for the data set.
2) Use SOCCS to describe this dataset in the text box
below. WRITE IN COMPLETE SENTENCES!
There are four most frequent values in the dataset that occur twice: 58, 60, 62, and 63.
How to solveUsing SOCCS, I can determine the essential values and provide a description of the given dataset consisting of times for CGHS swimmers in the 50m freestyle event:
The mean (average) time is 63.0 seconds, calculated by adding all times together and dividing by the total number of observations.
To find the middle value (median), the dataset was sorted in ascending order; thus, the median is 62 seconds.
There are four most frequent values in the dataset that occur twice: 58, 60, 62, and 63.
Calculating the difference between the highest and lowest values provides the range of 23 seconds.
The variance equals approximately 60.92, computed using the formula Σ(x-mean)^2 / (n-1). The resulting standard deviation is around 7.8, presenting some variation.
SOCCS description:
This dataset displays a slightly skewed distribution to the right due to two larger numbers (71 and 81).
One significant outlier exists (81 seconds), affecting the overall outcome significantly higher than other observed times.
From the values obtained via calculation, we get an indication of a balanced dataset: the average and median values show to be quite similar, establishing central tendencies for this specific data set.
Considering its dispersion across the representation, it follows that there is variability presented within the observed durations, utilizing both the range and the comparatively high standard deviation as our objective indicators for such measurement.
In conclusion, with these results, informed insights into the swimmers’ abilities and performances are evident, pinpointing potential areas for future improvements in their training regimes.
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Write five rational numbers between :-
1) -1/5 and 1/5
2)1/10 and 3/10
3)2/7 and 3/5
The five rational numbers between -1/5 and 1/5 are:-1/6, -1/10, 0, 1/10 and 1/6
2) The five rational numbers between 1/10 and 3/10 are: 1/10, 3/30, 5/30, 7/30, and 9/30
3) the five rational numbers between 2/7 and 3/5 are 1/5, 12/35, 13/35, 2/5, and 3/7.
What is the rational numbers?To find the five rational numbers between -1/5 and 1/5, we need to see the common difference between these numbers.
The difference between the two fractions is 1/5 - (-1/5)
= 2/5.
To find the common difference between the five fractions, we divide 2/5 by 6 so it will be
2/5 ÷ 6
= 1/15
So we need to begin with -1/5 and add 1/15 repeatedly to get the five fractions:
-1/5 + 1/15 = -1/6
-1/6 + 1/15 = -1/10
-1/10 + 1/15 = 0
0 + 1/15 = 1/10
1/10 + 1/15 = 1/6
2. To find the five rational numbers between 1/10 and 3/10, the difference between the two fractions is"
3/10 - 1/10 = 2/10 = 1/5.
So we divide 1/5 by 4
1/5 ÷ 4 = 1/20
Hence:
1/10 + 1/20 = 1/10
1/10 + 2/20 = 3/30
1/10 + 3/20 = 5/30
1/10 + 4/20 = 7/30
1/10 + 5/20 = 9/30 = 3/10
3. One need to find a common denominator for 2/7 and 3/5, which is 35.
Convert both fractions to have a denominator of 35:
2/7 = 10/35
3/5 = 21/35
So to get the rational number, it will be:
10/35 + 1/35 =11/35 = 1/5 10/35 + 2/35 = 12/35 10/35 + 3/35 == 13/3510/35 + 4/35 = 14/35 = 2/5 10/35 + 5/35 = 15/35 = 3/7Learn more about rational numbers from
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Obtain the absolute potential at point A (3, 2, 3) m due to a point charge Q=0.4nC is located at the origin. If the same point charge is relocated to B (5, 3, 3) m,
calculate the absolute potential at new position due to charge Q.
The absolute potential (V) at a point due to a point charge (Q) is given by the formula: V = kQ / r
where k is the electrostatic constant (8.99 x 10^9 Nm^2/C^2), Q is the charge in Coulombs, and r is the distance between the point and the charge.
First, we'll find the absolute potential at point A (3, 2, 3) m due to the charge Q = 0.4 nC at the origin.
1. Convert Q to Coulombs: Q = 0.4 nC = 0.4 x 10^(-9) C
2. Find the distance r between the origin and point A using the Pythagorean theorem: r = √(3^2 + 2^2 + 3^2) = √(9 + 4 + 9) = √22
3. Calculate V at point A: V_A = (8.99 x 10^9)(0.4 x 10^(-9)) / √22 ≈ 25.67 V
Now, we'll calculate the absolute potential at the new position (5, 3, 3) m due to the charge Q relocated to point B (5, 3, 3) m.
1. Find the distance r between point B and the new position: r = √((5-5)^2 + (3-3)^2 + (3-3)^2) = 0 (same point)
2. Since r = 0, the absolute potential at the new position is undefined (potential would go to infinity if r approaches 0).
So, the absolute potential at point A is approximately 25.67 V, and the absolute potential at the new position is undefined.
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A group of children stand evenly spaced around a circular ring and are numbered consecutively 1, 2,
3, and so on. Number 13 is directly opposite number 35. How many children are there in the ring?
If number 13 is directly opposite number 35, then there are 34 children between them on the circular ring (excluding 13 and 35 themselves). There are 34 + 2 = 36 children in the ring (including both 13 and 35).
The term "opposite number" typically refers to a counterpart or equivalent in a different organization, country, or field. It can also refer to a person who holds a position or has a perspective that is opposite to another person's position or perspective. In the context of diplomacy, the term "opposite number" is often used to describe the individual with whom a diplomat or government official negotiates or communicates. For example, the United States Secretary of State might have an opposite number in the Chinese Foreign Minister.
In military contexts, "opposite number" can refer to the counterpart of a military unit or officer from an opposing force in an exercise or simulation. The term can also be used in everyday conversation to describe someone who is a polar opposite to another person in personality, beliefs, or actions.
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Ide whole numbers
1
franny spent 35 minutes walking around a track. she made 7 laps around the track.
it took franny the same amount of time to walk each lap. how many minutes did it take her to walk each lap?
оа.
28
ов.
5
oc. 245
od. 1
reset
submit
It took Franny 5 minutes to walk each lap. The correct option is B.
Franny spent a total of 35 minutes walking around the track and made 7 laps around the track, so the total time for all 7 laps is 35 minutes. Let's assume it took Franny t minutes to walk each lap. Then, we can set up the following equation:
7t = 35
We can solve for t by dividing both sides of the equation by 7:
t = 35/7 = 5
Therefore, the correct option is B.
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(01. 04 MC)Simplify the following expression: (-3)(-2) -2) 0-12 0 12 0-18 0 18
The simplified expression is 4.
How to simplify the expression (-3)(-2) -2)?To simplify the expression (-3)(-2) -2), we need to follow the order of operations, which are parentheses first, then multiplication and division from left to right, and finally addition and subtraction from left to right.
First, we need to simplify (-3)(-2) to get:
(-3)(-2) = 6
Now we can substitute this value into the expression to get:
6 - 2) = 4
Therefore, the simplified expression is 4.
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A leaf blower was marked up 150% from an original cost of $80. Last Friday, Lee bought the leaf blower and paid an additional 7. 75% in sales tax. What was his total cost?
$
Lee's total cost for the leaf blower was $215.50.
First, let's find the selling price of the leaf blower before sales tax was added:
The leaf blower was marked up by 150%, so the selling price is:
= [tex]80 + (\frac{150}{100}) 80[/tex]
= 80 + 120
= 200
So the selling price of the leaf blower before sales tax was $200.
Next, we need to find the amount of sales tax that Lee paid. To do this, we need to multiply the selling price by the sales tax rate:
Sales tax = 7.75% ($200)
= 0.0775 ($200)
= $15.50
Finally, we can find Lee's total cost by adding the selling price and the sales tax:
Total cost = Selling price + Sales tax
= $200 + $15.50
= $215.50
Therefore, Lee's total cost for the leaf blower was $215.50.
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What are the coordinates of the point on the directed line segment from (2, -6) to
(6, 2) that partitions the segment into a ratio of 3 to 5?
A sample of 27 employees for the Department of Health and Human Services has the following salaries, in thousands of dollars. Assuming normality, use Excel to find the 98% confidence interval for the true mean salary, in thousands of dollars. Round your answers to two decimal places and use increasing order
The 98% confidence interval for the true mean salary of employees in the Department of Health and Human Services is (34.85, 42.27) thousands of dollars
To find the 98% confidence interval for the true mean salary of employees in the Department of Health and Human Services, we can use the following formula:
CI = x ± t*(s/√n)
where:
x is the sample mean
t is the critical t-value from the t-distribution with n-1 degrees of freedom and a confidence level of 98%
s is the sample standard deviation
n is the sample size
First, we need to calculate the sample mean and sample standard deviation:
Sample mean:
x= (28.5 + 32.1 + ... + 44.8) / 27 = 38.56
Sample standard deviation:
s = sqrt[((28.5-38.56)^2 + (32.1-38.56)^2 + ... + (44.8-38.56)^2) / (27-1)] = 6.05
Next, we need to find the critical t-value using a t-distribution table or Excel function.
Since we have a sample size of n = 27 and a confidence level of 98%, the degrees of freedom is n-1 = 26. Using Excel function "=TINV(0.01, 26)", we get a t-value of 2.485.
Substituting the values into the formula, we get:
CI = 38.56 ± 2.485*(6.05/√27) = (34.85, 42.27)
Therefore, the 98% confidence interval for the true mean salary of employees in the Department of Health and Human Services is (34.85, 42.27) thousands of dollars.
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Ginny made a cylindrical clay vase for her art project. If the vase has a
volume of 672 cubic inches and a diameter of 10 inches, which is closest to
the height of the vase?
If the vase has a volume of 672 cubic inches and a diameter of 10 inches, the height of the cylindrical clay vase is closest to 8.56 inches.
To find the height of the cylindrical vase, we'll use the formula for the volume of a cylinder: V = πr²h, where V is the volume, r is the radius, and h is the height. Given the diameter is 10 inches, the radius (r) is half of that, which is 5 inches. The volume (V) is 672 cubic inches.
Now, we can solve for the height (h) using the formula:
672 = π(5²)h
First, calculate the area of the base (πr²):
π(5²) = 25π
Now, divide the volume by the area of the base to find the height:
h = 672 / 25π
h ≈ 8.56 inches
So, the height of the cylindrical clay vase is closest to 8.56 inches.
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can someone help please ? GIVING BRAINLIST TO ANYONE WHO ANSWERS!!
Answer: 2.46
Step-by-step explanation:
Since you are compounding interest annually, your formula is:
[tex]A=P(1+r)^{t}[/tex]
P=principal, what you start with =97000
r= rate of increase, changed to decimal
t=years increased = 16
A= what you end up= 143000
Plug it all in:
[tex]A=P(1+r)^{t}[/tex]
[tex]143000=97000(1+r)^{16}[/tex] >divide both sides by 97000
1.474 = [tex](1+r)^{16}[/tex] > take the 16th root of both sides or ^(1/16)
1.0246 = 1+r >subtract 1 from both sides
r=.0246 >change to percent by moving decimal over 2
Rate = 2.46%
Which of the following inequalities is true?
A. 8<115 <9
B.9 <115 < 10
C.10 <115 <11
D. 11 <115 < 12
None of the inequalities is true.
Explain inequalities
Inequalities are mathematical expressions that compare two quantities or values using inequality symbols, such as "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "!=" (not equal to). They represent relationships where one quantity is larger, smaller, or not equal to the other, and can be solved using algebraic manipulation and logical reasoning.
According to the given information
Since 115 is an integer, we can see that it cannot be strictly between any two consecutive integers.
A: 8 < 115 < 9 is not true because 115 is not less than 9.
B: 9 < 115 < 10 is not true because 115 is not less than 10.
C: 10 < 115 < 11 is not true because 115 is not less than 11.
D: 11 < 115 < 12 is not true because 115 is not less than 12.
Therefore, none of the given inequalities is true.
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A 3 ox serving of roasted skinless chicken breast contain 140 cal, 24 g of protein, 2 g of fat, 11 mg of calcium, and 61 mg of sodium. One half cup of potato salad contains 160 cal, 4 g of protein, 13 g of fat, 21 mg of calcium, and 656 mg of sodium. One brooccoli spear contains 40 cal, 5 g of protein, 1 g of fat, 81 mg of calcium, and 23 mg of sodim. Use this information to complete following parts.
a) Write a 1×5 matrices, C, P, and B that represent the nutritional values of the chicken, potato salad, and broccoli, respectively. Give the nutritional values in the following order: Cal, g of protein, g of fat, mg of calcium, and mg of sodium.
C=
P=
B=
The matrices are: C = [140, 24, 2, 11, 61] P = [160, 4, 13, 21, 656] B = [40, 5, 1, 81, 23]
To represent the nutritional values of the chicken, potato salad, and broccoli in matrices, we can use a 1x5 matrix for each food, where each column represents a different nutritional value in the following order: calories, protein, fat, calcium, and sodium.
Therefore, we have:
C = [140 24 2 11 61]
P = [160 4 13 21 656]
B = [40 5 1 81 23]
In matrix C, the values are 140 calories, 24 grams of protein, 2 grams of fat, 11 milligrams of calcium, and 61 milligrams of sodium for a 3 ounce serving of roasted skinless chicken breast. In matrix P, the values are 160 calories, 4 grams of protein, 13 grams of fat, 21 milligrams of calcium, and 656 milligrams of sodium for one half cup of potato salad. In matrix B, the values are 40 calories, 5 grams of protein, 1 gram of fat, 81 milligrams of calcium, and 23 milligrams of sodium for one broccoli spear.
These matrices can be used to perform calculations and comparisons between the nutritional values of the different foods.
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Agan Interior Design provides home and office decorating assistance to its customers. In normal operation, an average of 2. 6 customers arrive each hour. One design consultant is available to answer customer questions and make product recommendations. The consultant averages 12 minutes with each customer. Compute the operating characteristics of the customer waiting line, assuming Poisson arrivals and exponential service times. Round your answers to four decimal places. Do not round intermediate calculations
There is a 95.52% chance that there are no customers in the system, a 9.93% chance that a customer has to wait in line, and a 31.20% chance that the server is busy.
λ = 2.6 guests per hour( Poisson appearance rate) μ = 1/ 12 hours per client( exponential service rate) c = 1 garçon( design adviser ) Using Little's Law, we can find the average number of guests in the staying line L = λ * W
where W is the average time a client spends in the system( staying and being served). To find W, we can use the formula
W = 1/( μ- λ) Using these formulas, we get
W = 1/(1/12-2.6) = 0.1154
hours = 6.92 twinkles
L = 2.6 *0.1154 = 0.3000 guests
So on average, there will be0.3 guests staying in line and each client will stay for6.92 twinkles before being served.
We can also cipher the probability that there are no guests in the system(P_0), the probability that a client has to stay(P_w), and the probability that the garçon is busy
(P_b) = 1- λ/ μ
= 0.9552
λ/ μ2 *( 1/( 1- λ/ μ)) = 0.0993 = λ/ μ = 0.3120
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In triangle JK L, cos(K) = 21 and angle J is a right angle. What is the value of cos (L)?
solve in the simplest way possible
Jamie jogged x km. Anabel jogged 1/4 less than Jamie. Choose the equation that best represents the situation. A
y = 3/4x
b
x = 4/3y
c
y = 1/4x
d
x = 1/4y
The equation that best represents the situation is y = 3/4x. The correct answer is A.
The given problem involves two people, Jamie and Anabel, who jogged a certain distance. Let's say Jamie jogged x km. Anabel jogged 1/4 less than Jamie, which means she jogged 3/4 of x km (since 1 - 1/4 = 3/4).
To represent this situation in an equation, we need to find the relationship between the distance jogged by Jamie and the distance jogged by Anabel. Since Anabel jogged 3/4 of the distance jogged by Jamie, we can write:
distance jogged by Anabel = 3/4(distance jogged by Jamie)
Using the given variable x for the distance jogged by Jamie, we can rewrite the equation as:
distance jogged by Anabel = 3/4x
And since the question is asking for an equation that best represents the situation, the correct answer is:
Cy = 3/4x
Therefore, Cy = 3/4x is the equation that best represents the situation where Jamie jogged x km and Anabel jogged 1/4 less than Jamie. The correct answer is A.
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Ms. Frank is going to wallpaper a living room with dimensions 24 feet long, 18 feet wide, and 8 feet high. How much wallpaper will Ms. Frank need if she is only putting it on the four walls?
Answer:
Step-by-step explanation:
you take 24 multiplied by 18 then by 8 and that'll equal
24 x 18 x 8 = 3456
Jocelyn is considering taking out one of the two following loans. loan h is a three-year loan with a principal of $5,650 and an interest rate of 12.24%, compounded monthly. loan i is a four-year loan with a principal of $6,830 and an interest rate of 10.97%, compounded monthly. which loan will have the smaller monthly payment, and how much smaller will it be? round all dollar values to the nearest cent. a. loan h's monthly payment will be $42.46 smaller than loan i's. b. loan h's monthly payment will be $140.79 smaller than loan i's. c. loan i's monthly payment will be $11.88 smaller than loan h's. d. loan i's monthly payment will be $26.98 smaller than loan h's.
Loan H's monthly payment will be $42.46 smaller than loan I's (rounded to the nearest cent). The correct option is a.
To determine which loan will have the smaller monthly payment, we need to calculate the monthly payments for both loans using the given information.
For loan H, the monthly interest rate is 12.24%/12 = 1.02%, and the number of payments is 3 years x 12 months/year = 36. Using the formula for the monthly payment on a loan with monthly compounding, we have:
P = (r(PV))/(1 - (1+r[tex])^{(-n)})[/tex]
where P is the monthly payment, r is the monthly interest rate, PV is the principal value of the loan, and n is the total number of payments.
Plugging in the values given for loan H, we get:
P = (0.0102 x $5,650) / (1 - (1+0.0102)⁻³⁶) = $186.25
For loan I, the monthly interest rate is 10.97%/12 = 0.9142%, and the number of payments is 4 years x 12 months/year = 48. Using the same formula as above, we have:
P = (0.009142 x $6,830) / (1 - (1+0.009142)⁻⁴⁸) = $227.04
Therefore, the monthly payment for loan H is $186.25 and the monthly payment for loan I is $227.04.
To find the difference between the monthly payments, we subtract the monthly payment for loan H from the monthly payment for loan I:
$227.04 - $186.25 = $40.79
Therefore, the answer is (a) loan H's monthly payment will be $42.46 smaller than loan I's (rounded to the nearest cent).
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Pentagon
apothem = 7.3
side = 10.6
i need help immediately please help me show work
Answer:
Sure, I can help you with that!
To find the area of a regular pentagon, we can use the formula:
Area = (1/2) x apothem x perimeter
where apothem is the distance from the center of the pentagon to the midpoint of any side, and perimeter is the total length of all the sides.
So, to find the area of your pentagon, we can first calculate the perimeter:
Perimeter = 5 x side
Perimeter = 5 x 10.6
Perimeter = 53
Now, we can plug in the values for apothem and perimeter into the formula:
Area = (1/2) x apothem x perimeter
Area = (1/2) x 7.3 x 53
Area = 193.45
Therefore, the area of your pentagon is approximately 193.45 square units.
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25 points help asap
will mark brainiest
select the correct answer from each drop-down menu.
a lake currently has a depth of 30 meters. as sediment builds up in the lake, its depth decreases by 2% per year
this situation represents _____
the rate of growth or decay,r, is equal to _____
so the depth of the lake each
year is ______ times the depth in the previous year,
it will take between _____
years for the depth of the lake to reach 26. 7 meters
It will take approximately 5.28 years for the depth of the lake to reach 26.7 meters.
How to find the lake depth decay?The situation represents decay because the depth of the lake decreases over time.
The rate of growth or decay, r, is equal to -0.02 (negative because it represents a decrease of 2% per year).
So the depth of the lake each year is 0.98 times the depth in the previous year (100% - 2% = 98%).
To find the number of years it will take for the depth of the lake to reach 26.7 meters, we can use the formula for exponential decay:
26.7 = 30 *[tex](0.98)^n[/tex]
Solving for n, we get:
[tex](0.98)^n = \frac{26.7 }{ 30}[/tex]
n =[tex]log\frac{(\frac{26.7}{30}) }{ log(0.98)}[/tex]
Using a calculator, we find n ≈ 5.28 years.
Therefore, it will take approximately 5.28 years for the depth of the lake to reach 26.7 meters.
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The circumference of a circular table is 816.4 centimeters. Determine the radius of the table.
The circumference of a circle is given by the formula C = 2πr, where C is the circumference and r is the radius. If the circumference of the circular table is 816.4 centimeters, then we can use this formula to find the radius of the table. Solving for r, we get r = C / (2π) = 816.4 / (2π) ≈ 129.9 centimeters (rounded to one decimal place).
Complete each conversion by dragging a number to each box.
Numbers may be used once, more than once, or not at all.
1,20012012,00012
12,000 g =
kg
120 cm =
mm
1. 2 L =
mL
1,200 cm =
m
0. 12 m =
mm
The conversion each unit gives:
12,000 g = 12 kg
120 cm = 1200 mm
1.2 L = 1200 mL
1,200 cm = 12 m
0. 12 m = 120 mm
How to convert from one unit to another?
Conversion of units is the process of converting between different units of measurement for the same quantity through conversion factors.
1000 g = 1 kg. Thus,
12,000 g = 12 kg
1 cm = 10 mm. Thus,
120 cm = 1200 mm
1L = 1000 mL. Thus,
1.2 L = 1200 mL
100 cm = 1 m. Thus,
1,200 cm = 12 m
1 m = 1000 mm. Thus,
0. 12 m = 120 mm
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Unit 7 polygons and quadrilaterals homework 4 rectangles
Find the missing measures.
To find the missing measures of a rectangle, we should know that all rectangles have four sides, and each side has a length.
If we have a quadrilateral like a rectangle with four angles, all the angles must be 90 degrees. We need to use the properties of rectangles to find the missing measures of a rectangle. We will find the length of each side first. The length of all sides of a rectangle should be the same. Then, we will calculate the area of the rectangle by multiplying the length of one side by the length of the other side.
Finally, to find the missing measures we will use the Pythagoras Theorem. The Pythagoras Theorem states that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides. Using this theorem, we can find the length of the hypotenuse of the rectangle.
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The complete question is " If each quadrilateral is given, then define the steps to find the missing measures of a rectangle."
Based on results from recent track meets, Leon has a 64% chance of getting a medal in the 100 meter dash. Estimate the probability that Leon will get a medal in at least 4 of the next 10 races. Use the random number table, and make at least 10 trials for your simulation. Express your answer as a percent
The estimated probability of Leon getting a medal in at least 4 of the next 10 races is 80%.
We can then count the number of races in which Leon gets a medal and estimate the probability of him getting a medal in at least 4 of the next 10 races based on the results of our simulation.
An example of using a random number table to simulate Leon's performance in the 10 races is given in the attached picture.
Based on this simulation, Leon got a medal in 5 of the 10 races. We can repeat this simulation multiple times (e.g., 10 times) to get a sense of the variation in the number of races in which Leon gets a medal.
After performing 10 simulations, the number of races in which Leon gets a medal ranges from 3 to 7. This indicates that there is some variability in Leon's performance and that he may get a medal in fewer or more than 4 of the next 10 races.
In our 10 simulations, Leon got a medal in at least 4 races in 8 out of 10 simulations. Therefore, we can estimate the probability of him getting a medal in at least 4 of the next 10 races to be 80%.
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PLEASE HELP ASAP 3 PART QUESTION
Answer:
that is really hard but im pretty sure one of the answers to the first one is -16? for the second x
Step-by-step explanation:
Is it Linear, exponential, Quadratic or neither
A segment with endpoints A (2, 6) and C (5, 9) is partitioned by a point B such that AB and BC form a 3:1 ratio. Find B.
A. (2. 33, 6. 33)
B. (3. 5, 10. 5)
C. (3. 66, 7. 66)
D. (4. 25, 8. 25)
The coordinates of point B are (4.25, 7.5), which is closest to option D (4.25, 8.25).
To find the coordinates of point B, we need to use the concept of section formula which states that if a line segment with endpoints A(x1, y1) and C(x3, y3) is partitioned by a point B(x2, y2) such that AB:BC = m:n, then the coordinates of B are given by:
x2 = (mx3 + nx1)/(m + n)
y2 = (my3 + ny1)/(m + n)
Here, A has coordinates (2, 6) and C has coordinates (5, 9). Let the ratio AB:BC be 3:1, which means that m = 3 and n = 1. Substituting these values in the formula, we get:
x2 = (3*5 + 1*2)/(3 + 1) = 17/4 = 4.25
y2 = (3*9 + 1*6)/(3 + 1) = 30/4 = 7.5
Therefore, the coordinates of point B are (4.25, 7.5), which is closest to option D (4.25, 8.25).
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an economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in california. suppose that the mean income is found to be $24 for a random sample of 1417 people. assume the population standard deviation is known to be $5.1 . construct the 99% confidence interval for the mean per capita income in thousands of dollars. round your answers to one decimal place.
The mean per capita income in thousands of dollars with 99% confidence interval and sample size of 1417 is equal to CI = (23.7, 24.3).
Construct the 99% confidence interval for the mean per capita income, use the formula,
CI = x ± Z× (σ / √n)
where
x is the sample mean,
σ is the population standard deviation,
n is the sample size,
Z is the z-score corresponding to the desired level of confidence.
Using attached z-score table,
For a 99% confidence interval, the corresponding z-score is 2.58
Substituting the given values, we get,
⇒CI = 24 ± 2.58 × (5.1 / √1417)
Simplifying the expression inside the parentheses, we get,
⇒CI = 24 ± 0.349
⇒CI = (23.7, 24.3)
Rounding to one decimal place, the confidence interval is (23.7, 24.3) thousands of dollars.
Therefore, the 99% confidence interval for the mean per capita income is CI = (23.7, 24.3).
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The population p of a city founded in january 2009 is modeled by p(t) = 10000e*t, where t is
the time in years.
if the population was 30,000 in 2014, determine the growth rater. then, complete the model.
The population model is complete, with p(t) = 10000e(0.2197t), and the city's population is growing at a rate of about 0.2197 each year.
To determine the growth rate and complete the model for the population of a city founded in January 2009, we need to use the given information and equation, p(t) = 10000e^(rt), where t is the time in years, and r is the growth rate.
Determine the time (t) in years from January 2009 to 2014.
t = 2014 - 2009 = 5 years
Substitute the given population (30,000) and time (5 years) into the equation.
30,000 = 10000e^(5r)
Solve for the growth rate (r).
First, divide both sides by 10000:
3 = e^(5r)
Now, take the natural logarithm of both sides to isolate the exponent:
ln(3) = 5r
Finally, divide both sides by 5:
r = ln(3)/5 ≈ 0.2197
So, the growth rate is approximately 0.2197 per year.
Complete the model with the calculated growth rate.
p(t) = 10000e^(0.2197t)
The growth rate of the city's population is approximately 0.2197 per year, and the completed model for the population is p(t) = 10000e^(0.2197t).
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