Answer:
A =153.86 cm^2
Step-by-step explanation:
The diameter is 14 so the radius is d/2 = 14/2 = 7
A = pi r^2
A = (3.14) (7)^2
A =153.86 cm^2
Answer:
Step-by-step explanation:
First you take the diameter and cut it in half to find the radius. 14/2 = 7
Next you times the radius to the power of 2. 7^2= 49
Then you times your answer by 3.14. 49*3.14 = 153.86
153.86cm² is your answer
The point Y (-1,12) is dilated about the origin resulting in Y' (-1/5, 2 2/5) what scale factor was used ?
I’m begging you , I will give brainliest too.
A dilation transformation is a type of transformation that shrinks or stretches the size of an object. This kind of transformation is performed by multiplying the coordinates of each point in the object by a scale factor. the scale factor used in this dilation transformation is 1/5.
The point Y (-1,12) is dilated about the origin, resulting in Y' (-1/5, 2 2/5).The scale factor used is the ratio of the corresponding lengths of the image and preimage of a point. As a result, we can write the following formula: Scale factor = Length of the image / Length of the preimage.
Let's first calculate the distance between Y and the origin:Length of the preimage = sqrt((-1)^2 + (12)^2) = sqrt(145)Then, let's calculate the distance between Y' and the origin:Length of the image = sqrt((-1/5)^2 + (12/5)^2) = sqrt(145)/5Finally, we can determine the scale factor:Scale factor = Length of the image / Length of the preimage= (sqrt(145)/5) / sqrt(145) = 1/5.
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Patrick won a sweepstakes and will receive money each week for 52 weeks. The first week he will receive $10. Every week after that he will receive 10% more than he got the previous week. How much money did he receive over the 52 weeks?
Patrick received a total of approximately $6,785.97 over the course of 52 weeks.
To calculate the total amount of money Patrick received over the 52 weeks, we can use the concept of a geometric sequence. The first term of the sequence is $10, and each subsequent term is 10% more than the previous term.
To find the sum of a geometric sequence, we can use the formula:
Sn = a * (r^n - 1) / (r - 1),
where Sn is the sum of the first n terms, a is the first term, r is the common ratio, and n is the number of terms.
In this case, a = $10, r = 1 + 10% = 1.1 (common ratio), and n = 52 (number of weeks).
Plugging these values into the formula, we can calculate the sum of the sequence:
S52 = 10 * (1.1^52 - 1) / (1.1 - 1)
After evaluating this expression, we find that Patrick received approximately $6,785.97 over the 52 weeks.
As a result, Patrick collected about $6,785.97 in total over the course of 52 weeks.
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K-
Assume that random guesses are made for 8 multiple-choice questions on a test with 5 choices for each question, so
that there are n = 8 trials, each with probability of success (correct) given by p=0.20. Find the probability of no correct
answers.
Click on the icon to view the binomial probability table.
The probability of no correct answers is
(Round to three decimal places as needed.)
www.
Using the binomial distribution, it is found that:
The probability of no correct answers is 0.1678 = 16.78%.
For each question, there are only two possible outcomes, either it is answered correctly, or it is not. The answer of a question is independent of any other question, thus the binomial distribution is used to solve this question.
What is the binomial distribution formula?The formula for the probability of x successes is:
\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)
\(C_{n,x} = \frac{n!}{x!(n-x)!}\)
The parameters are given by:
n is the number of trials of the experiment.p is the probability of a success on a single trial of the experiment.In the context of this problem, considering the number of questions and the probability of each being answered correctly, the parameters are given as follows:
n = 8, p = 0.2.
The probability of no correct answers is P(X = 0), hence:
P(X = 0) = (0.8)^8 = 0.1678.
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Given that f(x) = x^2-3/2
a) Find f(3)
b) Find f'(x)
c) Find f'(11)
Note: For part c) separate your 2 answers with a comma (eg. -2, 2)
Step-by-step explanation:
a) f(3)=3^2 - 3/2
=9-3/2
=15/2
(a)The value of given function at x=3, f(3)=7.5,
(b)The first derivative f'(x)=2x and (c) f'(11)=22.
Given that the function
\(f(x) = x^2-\frac{3}{2}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ (1)\)
(a) To find f(3), put x=3 in equation (1).
Take x=3, then from equation (1),
\(f(x) = x^2-\dfrac{3}{2}\\f(3) = (3)^2-\dfrac{3}{2}\\f(3) = 9-\dfrac{3}{2}\\f(3)=\dfrac{18-3}{2} \\f(3)=\dfrac{15}{2}\)
Thus, f(3)=7.5
(b) To find first derivative, that is, f'(x), differentiate equation (1) with respect to x.
\(f'(x)=\dfrac{d}{dx} (x^2-\dfrac{3}{2}) \\f'(x)=2x-0\\f'(x)=2x\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ (2)\)
Thus, f'(x)=2x
(c) To find f'(11), put x=11 in equation (2).
take x=11, then from equation (2),
f'(x)=2x
f'(11)=2×11
f'(11)=22
Thus, f'(11)=22.
Hence, f(3)=7.5, f'(x)=2x and f'(11)=22.
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1/5 de los animales en el zoológico son monos 5/7 de los monos son machos
¿Qué fracción de los animales en el zoológico son monos machos?
1/7 of the animals in the zoo are male monkeys.
What fraction of the animals in the zoo are male monkeys? Explain with workings.
To find the fraction of animals in the zoo that are male monkeys, we have to calculate the product of the fractions representing the proportion of monkeys and the proportion of male monkeys among them.
Given that 1/5 of the animals in the zoo are monkeys, we will then represent this as:
= 1/5
= 5/25.
And 5/7 of the monkeys are male which is written as 5/7.
To get fraction of male monkeys, we will multiply these two fractions:
= (5/25) * (5/7)
= 25/175
= 1/7.
Full question:
1/5 of the animals in the zoo are monkeys 5/7 of the monkeys are male. What fraction of the animals in the zoo are male monkeys?
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Es el valor de la incógnita en la siguiente igualdad: x/Sen30°= 8/Sen45°
Respuesta:
x = 5.656854249
Explicación paso a paso:
[NOTA: Solo quería disculparme de antemano por cualquier mala gramática, ya que estoy usando un traductor para esto.]
x/Sen30°= 8/Sen45° [Multiplica ambos lados por Sen30°]
x = (8/Sen45°) * Sen30° [Resuelve usando una calculadora]
x = 5.656854249
Please helppppp!!!!!!
I need help with Geometry
9514 1404 393
Answer:
(5, 1)
Step-by-step explanation:
Reflection across the x-axis negates the y-coordinate:
(x, y) ⇒ (x, -y) . . . . reflection across the x-axis
Rotation 90° CCW is the transformation ...
(x, y) ⇒ (-y, x) . . . . rotation 90° CCW
The two transformations together give ...
(x, y) ⇒ (y, x) . . . . reflection across the x-axis, then rotation 90° CCW
For point B, this gives ...
B(1, 5) ⇒ B'(5, 1)
Write a quadratic function h whose zeros are 10 and 3
The quadratic function is x² - 13x + 30.
What is a quadratic function?A polynomial function with one or more variables, where the largest exponent of the variable is two, is referred to as a quadratic function.
A quadratic function is one of the form:
f(x) = ax²+ bx + c,
where a, b, and c are numbers with a not equal to zero.
Let m and n be the zeros of the quadratic function.
So, the quadratic function is
f(x) = c(x-m)(x-n),
where c is the constant common term and m, n are zeros.
Simplifying,
f(x) = x² -mx - nx + mn.
Here, given zeros of the quadratic equation are 10 and 3.
That means,
if function is subjected to x.
Then (x-10) and (x-3) are factors of the quadratic function.
To write a quadratic function:
we multiply the factors,
(x-10)(x-3)
= x² -10x - 3x + 30
= x² - 13x + 30
Therefore, the quadratic function is x² - 13x + 30.
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Can someone help me with this question please, I need it ASAP.
2. Estefan wanted to buy a stereo that was half-off the regular price of $150. How much was the stereo's sale price?
The Selling Price of the Stereo will be $75
What is Selling Price and Cost Price?Cost Price is defined as the amount that is paid to purchase an article or the price at which an article is made is known as its cost price. The cost price can be abbreviated as C.P.
Selling Price is defined as the price at which an article is sold to the customer. The selling price is abbreviated as S.P.
Profit and Loss can be estimated through Selling Price and Cost Price.
Profit =Selling Price-Cost Price ,only when the selling price is greater than the Cost price.
Loss= Cost Price- Selling price , only when the cost price is greater than the Selling price.
Step by step explanation
As we know that the Cost Price=$150
and Selling Price is 50% of Cost Price
∴Sale Price will be $75
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The snake population on an island is declining at a rate of 2.7% per year. The population was 6000 in the year 2009.
What is the best prediction of the snake population in the year 2014?
Enter your answer, rounded to the nearest integer, in the box.
The snake population will be....?
Answer:
5190
Step-by-step explanation:
2.7% of 6000 is 162.
There is a 5 year span between 2009 and 2014.
So just subtract 162 from 6000 5 times, or multiply 162 by 5, then subtract that from 6000.
Hope It Helps!
Solve the equation.
p−3=−4
p=
The value of p in the given equation is -1.
Given is an equation p-3 = -4, we need to find the value of p,
So,
p-3 = -4
p = -4+3
p = -1
Hence, the value of p in the given equation is -1.
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What is the implied uncertainty for a measurement of 127.4 mL ? What is the uncertain digit?
The uncertain digit in the measurement 127.4 mL is the last digit, which is 4.
In the given measurement of 127.4 mL, the implied uncertainty can be determined by considering the precision of the measurement.
The presence of one decimal place, after the digit 4, suggests that the measurement has a precision of 0.1 mL.
This means that the measurement is accurate to the nearest tenth of a milliliter.
The uncertain digit is the digit that represents the estimated or uncertain value. In this case, the uncertain digit is the last digit, which is 4.
It signifies that there is some level of uncertainty in the exact value of the measurement and that it could vary by ±0.1 mL.
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the treasures location has an absolute value between 1 1/2 and 9 show on the number line where the treasure could be
The location is between values of 1 1/2 and 9.
The values being absolute it means that they have no sign, i.e. they can be either positive or negative.
Since the values are both positive, you have to draw a positive number line.
The purple line indicates the possible locations over the number line.
Find the value of k. Then find the angle measures of the triangle.
Answer:
2k = 90°
k = 45 °
Step-by-step explanation:
sum of angles in a triangle = 180°
2k + k + 45° = 180°
3k = 135°
k = 45°
2k = 90°
Please help me and explain (40 pts) will mark brainliest
use graph calculator (attachment)
or you can solve it by equation:
y+2.3=0.45x (eq 1)
-2y=4.2x-7.8
-y=2.1x-3.9
y=-2.1x+3.9 (eq 2)
eg 2 ⇒ eq 1
\(\tt -2.1x+3.9+2.3=0.45x\\\\-2.1x-0.45x=-6.2\\\\x=2.43\\\\y=-2.1(2.43)+3.9=-1.2\)
At the grocery store, Mr. and Mrs. Bailey bought 24 apples and 18 pears. Write a ratio in simplest form to compare apples and pears.
Answer:
4:3
Step-by-step explanation:
Legit just simplified it.The original ratio is 24:18. First found the greatest common multiple (GCF) and divided both by it. In this case it was 6. So 24/6 = 4 and 18/6 = 3. Now your newly simplified ratio of apples to pears is 4:3.
In a recent election, 63% of all registered voters participated in voting. In a survey of 275 retired voters, 162 participated in voting. Which is higher, the population proportion who participated or the sample proportion from this survey?
The population proportion who participated in voting (63%) is higher than the sample proportion from this survey (58.91%).
To determine whether the population proportion who participated in voting or the sample proportion from the survey is higher, we need to compare the percentages.
The population proportion who participated in voting is given as 63% of all registered voters.
This means that out of every 100 registered voters, 63 participated in voting.
In the survey of retired voters, 162 out of 275 participants voted. To calculate the sample proportion, we divide the number of retired voters who participated (162) by the total number of retired voters in the sample (275) and multiply by 100 to get a percentage.
Sample proportion = (162 / 275) \(\times\) 100 ≈ 58.91%, .
Comparing the population proportion (63%) with the sample proportion (58.91%), we can see that the population proportion who participated in voting (63%) is higher than the sample proportion from this survey (58.91%).
Therefore, based on the given data, the population proportion who participated in voting is higher than the sample proportion from this survey.
It's important to note that the sample proportion is an estimate based on the surveyed retired voters and may not perfectly represent the entire population of registered voters.
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on the next test one of the students in mr arthur's class scores 100 but the other 4 score 50 what is the average
Answer
The average for the next test would be 60
Step-by-step explanation:
50+50+50+50+100= 300
then divide by 5 students
300/5 = 60
Nate buys 2,560 shares of an income stock from a moving company. The company pays a dividend of $0.99 per share. If the moving company pays Nate the dividends quarterly, how much money does he receive each quarter?
Answer:
102.4 im pretty sure this is it forgive me if its wrong
Step-by-step explanation:
The diagram shows a right-angled triangle.
hcm
48°
18 cm
What is the value of h?
Give your answer
Answer:
13.4
Step-by-step explanation: sin= opposite/ hyp sin(48) = h/ 18 h = sin(48) * 18
Given that
4
x
:
9
=
7
:
5
Calculate the value of
x
.
Answer:
25
Step-by-step explanation:
Answer:
14/5
Step-by-step explanation:
A new L.E.D. light bulb has an expected life time of 25000 hours. Your guess for the probability that it will last more than 3 years is closest to: (Assume life times follow the exponential distribution) (A) 100% (B) 99% (C) 53% (D) 35% (E) 0%
The exponential distribution may be used to predict the failure rate of certain items over time. An LED light bulb has an expected lifetime of 25000 hours. Assuming that the lifetime of the LED light bulb follows the exponential distribution, the probability that it will last more than 3 years is closest to (C) 53%. Correct answer is option C
This is because the lifetime of an LED light bulb can be estimated using the following equation : P(x > 3 years) = 1 - P(x ≤ 3 years)where x is the lifetime of the LED light bulb.If we convert 3 years to hours, we get 3 * 365 * 24 = 26280 hours. As a result, P(x ≤ 3 years) = P(x ≤ 26280 hours)
Using the formula for exponential distribution, the probability of the LED light bulb failing after 26280 hours is : Probability = 1 - e^{-λx} Where λ is the failure rate per hour and x is the length of time in hours.We can now calculate the value of λ by dividing the expected lifetime of the bulb by the total number of hours.
λ = 1/25000 hours This implies that the probability of the LED light bulb failing after 26280 hours is : P (x ≤ 26280 hours)
Therefore, the probability that the LED light bulb will last more than 3 years is approximately 53 percent. The Correct answer is option C
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1. Let G be a group and H be a nonempty subset of G that is closed under the binary operation of G. Then H is a subgroup of G. a. True b. False 2. Given the following statements. Statement A: Every cyclic group is abelian. Statement B: The order of the cyclic group is the same as the order of its generator. Choose the correct option. a. A and B are true. b. Both A and B are false. c. A is true but B is false. d. A is false but B is true. 3. The set of all real numbers under the usual multiplication operation is not a group since a. Zero has no inverse. b. The identity element under the operation does not exist. c. Multiplication is not a binary operation on the set. d. Multiplication is not satisfying the associativity property.
The correct answer is a)True c)True The order of the cyclic group is determined by the number of elements in the group, whereas the order
a. True. If a nonempty subset H of a group G is closed under the binary operation of G, contains the identity element of G, and contains the inverse of each of its elements, then H is a subgroup of G.
c. A is true but B is false. Every cyclic group is indeed abelian, but the order of the cyclic group is not necessarily the same as the order of its generator. The order of the cyclic group is determined by the number of elements in the group, whereas the order of the generator refers to the smallest positive exponent that generates all elements of the group.
a. Zero has no inverse. In the set of real numbers under the usual multiplication operation, the element zero does not have a multiplicative inverse. Every nonzero real number has an inverse, but zero itself does not. In a group, every element should have an inverse, so the set of all real numbers under multiplication does not form a group.
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If BM and CN are the perpendiculars drawn on the sides AC and AB of the triangle ABC , so the points B, C, M and N are concyclic?
Answer:
Step-by-step explanation:Yes, the points B, C, M, and N are concyclic.
In a triangle ABC, if perpendiculars BM and CN are drawn from the vertices B and C to the sides AC and AB respectively, then the quadrilateral BCNM is a cyclic quadrilateral. This means that the points B, C, M, and N lie on a common circle.
To see why this is true, consider the angles formed by the sides of the quadrilateral BCNM. Since BM is perpendicular to AC, angle BMC is a right angle. Similarly, CN being perpendicular to AB makes angle CNC a right angle as well.
Now, angle BNC is the sum of angles BMC and CNC, which means it is also a right angle. Similarly, angle BMC is the sum of angles BNC and CNB, so it is a right angle too.
Since all angles of the quadrilateral BCNM are right angles, the quadrilateral can be inscribed in a circle where the diameter is the line segment BC. Therefore, the points B, C, M, and N are concyclic.
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A student evaluated −4 + (−9 1/2) and got an answer of 5 1/2. What might the student have done wrong?
Answer:
Never converted -9 1/2 into an improper fractionAdded the two numbers together instead of subtractedI hope this helps!
Find x, and GH.
X =
GH: =
34
7x + 6
4x + 8
By using given figure, x=9/4 and the length of GH = 21.75.
What is the length ?
Here, in given figure,
BG≈GF and CH≈HE
now by using these similarities, we can write as,
BG≈GF therfore, \(\frac{GF}{BG}\) = 1:1
\(\frac{GF}{BF}\)=\(\frac{4x+8}{34}\)
1/2=\(\frac{4x+8}{34}\)
8x+16=34
8x= 18
x=9/4
if x=9/4 then,
GH= 7x+6 = 7(9/4)+6 =63/4+6 =\(\frac{63+24}{4}\) = 21.75
What is similarity of sides?
similarity of sides refers to the property of two geometric shapes or figures having the same shape but not necessarily the same size. More specifically, two shapes are said to be similar if their corresponding angles are congruent and their corresponding sides are proportional in length.
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Using the formula below, determine the monthly payment on a 5 year car loan with a monthly percentage rate of 0.625% for a car with an original cost of $21,000 and a $1,000 down payment, to the nearest cent.
Pn = PMT ((1-(1+i)-n)/i)
Pn= present amount borrowed
n= number of monthly pay periods
PMT= monthly payment
i= interest rate per month
To determine the monthly payment on a 5-year car loan with a monthly percentage rate of 0.625%, we need to calculate the present amount borrowed (Pn) and then use the given formula to solve for the monthly payment (PMT).
Given:
Original cost of the car (Pn) = $21,000
Down payment = $1,000
Monthly interest rate (i) = 0.625% = 0.00625
Number of monthly pay periods (n) = 5 years * 12 months/year = 60 months
First, calculate the present amount borrowed (Pn):
Pn = Original cost - Down payment
Pn = $21,000 - $1,000
Pn = $20,000
Now, use the formula to calculate the monthly payment (PMT):
PMT = Pn * ((1 - (1 + i)^(-n)) / i)
PMT = $20,000 * ((1 - (1 + 0.00625)^(-60)) / 0.00625)
Calculating this expression using a calculator or spreadsheet, the monthly payment (PMT) is approximately $377.42 (rounded to the nearest cent).
Therefore, the monthly payment on the 5-year car loan is approximately $377.42.
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please help I will make Brainliest if correct (show working)
Answer:
Hi
Step-by-step explanation:
I don't know bec we didn't learn this.. So.. Sorry
Answer:
52
Step-by-step explanation:
6+2+6=14
14*3=42
2*5(the five wasn't in the question but it's on the picture sooooo yeah)=10
42+10=52