Area of the circle S be 16π square. millimeter
What is an area of circle ?
The area of a circle is the space the circle occupies in the two-dimensional plane. Alternatively, the space occupied within the boundary/circumference of a circle is called the area of the circle. The formula for the area of a circle is A = πr2, where r is the radius of the circle. A unit area is a unit square. Examples: m2, cm2, in2, etc. Circle area = π\(r^{2}\)in square units (Pi)π = 22/7 or 3.14. Pi (π) is the ratio of the circumference to the diameter of any circle. This is a special mathematical constant.
It is given that the radius of circle S is half the radius of circle L and the radius of circle L is 8 millimeters.
Radius of the circle S = 8/2 = 4 millimeters
Area of the circle S = π\(r^{2}\) = π\((4)^{2}\) = 16π square. millimeter
Therefore, area of the circle S be 16π square. millimeter
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Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.
n=56, x=30; 95% confidence
A. 0.426
The 95% confidence interval for the population proportion is approximately 0.3573 to 0.7141. None of the given options (A, B, C, D) match the calculated interval.
To construct a confidence interval for the population proportion, we can use the formula:
Confidence Interval = sample proportion ± critical value * standard error
Where the sample proportion (p-hat) is calculated by dividing the number of successes (x) by the total sample size (n). In this case, n = 56 and x = 30, so the sample proportion is 30/56 = 0.5357.
The critical value is determined based on the desired degree of confidence. For a 95% confidence level, which is given in this case, the critical value can be obtained from a standard normal distribution. For a two-tailed test, the critical value is approximately 1.96.
The standard error is calculated by taking the square root of (p-hat * (1 - p-hat) / n). Plugging in the values, we get sqrt(0.5357 * (1 - 0.5357) / 56) = 0.0907.Now, we can construct the confidence interval:Confidence Interval = 0.5357 ± 1.96 * 0.0907Calculating the upper and lower bounds of the interval:
Lower bound = 0.5357 - (1.96 * 0.0907) ≈ 0.3573
Upper bound = 0.5357 + (1.96 * 0.0907) ≈ 0.7141\
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is my answer correct or should I add more or change it?
Answer:
the answer u wrote is correct because the question says to just subtract x number of dog by 7 dogs and u get a total of 35 dogs
Plz help it is over due
Answer:
32/9
Step-by-step explanation:
(4/1) (9/8)=
32/9
Factor out the greatest common factor. If the greatest common factor is 1, just retype the polynomial.
24f2+11
Answer:
24t^2 + 11
Step-by-step explanation:
There is a lot left out of this question. If you are allowed rational numbers, a common factor could be 24.
24(t^2 + 11/24) is one possibility.
I think what you mean is there an integer that is a common factor. There is not.
So the answer is 24t^2 + 11
There is one more thing that needs to be clarified. Can you give t a value? If you can, then t = 11
the common factor would be
11(24 * 11 + 1)
I doubt very much that this is what is meant, but the question really should make it clear.
Answer:
1(24f²+11) is your answer
Step-by-step explanation:
24f2+11
taking common
1(24f²+11)
Can someone plz help me
Answer:
i think its c
Step-by-step explanation:
Answer:
The answer is C. 5a² - 4a + 1
Step- by- Step:First you want to Distribute the Negative Sign:
= 10a² + 3 − 5a + −1 (2 + 5a² − a)
= 10a² + 3 + −5a + (−1) (2) + −1 (5a²) + −1 (−a)
= 10a² + 3 + −5a + −2 + −5a² + a
Add Like Terms:
= 10a² + 3 + −5a + −2 + −5a² + a
= (10a² + −5a²) + (−5a + a )+( 3+ −2)
= 5a² + −4a + 1
Happy To Help! :)
Determine whether the pair of lines is parallel perpendicular or neither 26x+2y=4 and -3x+39y=-15
How many real zeros does the following quadratic function have?
f(x) = - 5x ^ 2 + 6x + 4
Answer:
2
Step-by-step explanation:
Find the discriminant:
D = b² − 4ac
If the discriminant is positive (D > 0), there are 2 real zeros.
If the discriminant is zero (D = 0), there is 1 real zero.
If the discriminant is negative (D < 0), there are no real zeros.
In this case, a = -5, b = 6, and c = 4.
D = (6)² − 4(-5)(4)
D = 36 + 80
D = 116
D > 0
There are 2 real zeros.
Using a unit circle, what are the degree measures of all angles with the given cosine?
1/2
Answer:
To find the degree measures of all angles with cosine 1/2, we can use the unit circle, which is a circle with a radius of 1 centered at the origin of the coordinate plane. The x-coordinate of a point on the unit circle represents the cosine of the angle formed between the positive x-axis and the line segment connecting the origin to the point.
When cosine is 1/2, we know that the x-coordinate of the point on the unit circle is 1/2. We can use the Pythagorean theorem to find the y-coordinate of the point:
1^2 + y^2 = 1^2
y^2 = 1 - 1/4
y^2 = 3/4
y = ±√(3/4)
y = ±(√3)/2
So the two angles with cosine 1/2 are the angles whose terminal sides intersect the unit circle at the points (1/2, √3/2) and (1/2, -√3/2). To find these angles in degrees, we can use the inverse cosine function:
cos⁻¹(1/2) ≈ 60
cos⁻¹(1/2) + 360 ≈ 300
Therefore, the degree measures of all angles with cosine 1/2 are approximately 60° and 300°.
Step-by-step explanation: :)
The Department of Energy was also eager to sign on, in part because it wanted to learn about how radiation causes genetic O combinations O mutations O fulminations O corrections.
The Department of Energy was also eager to sign on, in part because it wanted to learn about how radiation causes genetic mutations.
What is mutation ?An modification in the nucleic acid sequence of an organism's, virus's, or extrachromosomal DNA is referred to as a mutation. DNA or RNA can be found in the viral genome.
Any alteration to a cell's DNA sequence. Mistakes in cell division can result in mutations, as can exposure to environmental DNA-damaging substances.
Ionizing radiation may harm genetic material (mutations) in gonads or germ cells, which can result in disorders with a genetic component (hereditary defects). Malformations, metabolic issues, immune system deficits, etc. might occur from them.
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please help! i will give brainliest to people who answer first!
Answer:
false is the answer
Step-by-step explanation:
an experiment consists of tossing 4 unbiased coins simultaneously. the number of simple events in this experiment is question 20answer a. 10 b. 8 c. 16 d. 25
The number of simple events in this experiment is 16.
The correct answer to the given question is option c.
The probability of an event can be calculated by dividing the number of favorable outcomes by the number of possible outcomes. A simple event is one in which only one of the outcomes can occur. For example, if a coin is tossed, a simple event would be the outcome of the coin being heads or tails.
The total number of possible outcomes in the experiment of tossing 4 unbiased coins simultaneously is 2⁴, since there are two possible outcomes for each coin. Thus, the total number of possible outcomes is 16.
Each coin has two possible outcomes: heads or tails. If all four coins are flipped, there are two possible outcomes for the first coin, two possible outcomes for the second coin, two possible outcomes for the third coin, and two possible outcomes for the fourth coin. Therefore, the total number of possible outcomes is 2 × 2 × 2 × 2 = 16.
Therefore, the number of simple events in this experiment is 16, which is option (c).
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Montrer que ( 15x - 6 ) = 9( 5x - 2 )²
(L8) Apply the 45º-45º-90º Triangle Theorem to find the length of a leg of a right triangle if the length of the hypotenuse is 102.
The 45º-45º-90º Triangle Theorem states that in a right triangle where the two acute angles are both 45º, the length of the hypotenuse is √2 times the length of each leg.
Therefore, if the length of the hypotenuse is 102, then the length of each leg is 102/√2 or approximately 72.14.
To apply the 45º-45º-90º Triangle Theorem to find the length of a leg of a right triangle with a hypotenuse of 102, you need to use the ratio 1:1:√2 for the leg, leg, and hypotenuse respectively. Since the hypotenuse is 102, you can set up the following equation:
Leg : Leg : Hypotenuse = 1 : 1 : √2
Let "x" represent the length of each leg. Then, the relationship becomes:
x : x : 102 = 1 : 1 : √2
To solve for x, divide the hypotenuse by √2:
x = 102 / √2
To rationalize the denominator, multiply the numerator and denominator by √2:
x = (102 * √2) / (2)
x = 51√2
So, the length of each leg of the 45º-45º-90º right triangle is 51√2 units.
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Find the slope of the line from a graph! Will Give brainliest :)
Answer:
-4
Step-by-step explanation:
because the line is going from top to bottom it is negative
you take the rise ( the Y value) / the run (the X Value)
the Y and X value can be pulled from any two points
Whats 5 x 5 divided by 5 x 5 divided by 5
Answer:
5
Step-by-step explanation:
5x5=25
25/5x5
25/25=1
1x5=5
So ur answer is 5
Please answer <3
A line passes through the points (-5,10) and (0,-10). What is its equation in slope-intercept form?
y=__x+___
Answer:
The equation for the slope-intercept form is y = 4x - 10
Hope this helps!
Step-by-step explanation:
Slope = \(\frac{y_{2}-y_{1} }{x_{2} -x_{1} }\) Equation = y = mx + b
The two points given are ( -5, 10 ) and ( 0, -10 ).
Putting in the values gives you \(\frac{-10-10}{0-(-5)} = \frac{-20}{5} =-4\).
y = 4x + b, to find b, insert one of the points:
-10 = 4(0) + b -> -10 = 0 + b, b = -10
Putting it all together gives you y = 4x - 10
a basketball player makes 80% of her free throws. what is the standard deviation of the successes from 100 free throws?
Since 80 out of 100 free throws were successful, the standard deviation of the success rate would be 8, and the standard deviation of a binomial distribution is the square root of (p*q)/n, where p is the probability of success, q is the probability of failure (1-p), and n is the total number of trials.
Standard deviation is calculated as follows:
p*q/n = 0.8*0.2/100 = 0.0016 = 0.04 = 8
Since 80% of 100 equals 80 successful free throws, the standard deviation of the successes from 100 free throws would be 8. The dispersion in a set of data is measured by standard deviation. A binomial distribution's standard deviation is equal to the square root of (p*q)/n, where p is the success probability, q is the failure probability (1-p), and n is the number of trials. Since the success rate in this instance is 80%, p = 0.8, q = 0.2, and n = 100. The standard deviation is then equal to the square root of (p*q/n): (0.8*0.2/100) = (0.0016) = (0.04), which equals 8. Therefore, the standard deviation of the successes from 100 free throws for a basketball player who makes 80% of them would be 8.
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The vertices of a square are A (-6, 4), B(-1, 6), C(1, 1), and D( -4, -1). How long is the diagonal?
1. √29 units
2. 2√29 units
3. √58 units
4. 2√58 units
Answer:
\( \sqrt{58} \)
\(4x -3 = 11x\)
Answer:
\(x=-\frac{3}{7}\)
Step-by-step explanation:
\(4x-3=11x\\\\4x-3+3=11x+3\\\\4x=11x+3\\\\4x-11x=11x-11x+3\\\\-7x=3\\\\\frac{-7x=3}{-7}\\\\\boxed{x=-\frac{3}{7}}\)
Hope this helps.
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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help me please asap....please
Answer:
56% 56/100
Step-by-step explanation:
Estimate the sum: 6.74 + 6.92 + 7.243 + 7.398
Answer:
28
Step-by-step explanation:
6.74 and 6.92 both round up to 7. Meaning the problem is basically 7 time 4.
The sum of 6.74 + 6.92 + 7.243 + 7.398 is = 28.301
What is addition?Addition is the combination of two or more values leading to a single value.
When 6.74 + 6.92 + 7.243 + 7.398 are added together a single value 28.301 is gotten.
Therefore, the sum of 6.74 + 6.92 + 7.243 + 7.398 is = 28.301.
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Helppppppppppppppppp
Answer:
CA = 32
Step-by-step explanation:
By intersecting chords theorem:
\(12(4x + 1) = 14(3 + 3x) \\ \\ 48x + 12 = 42 + 42x \\ \\ 48x - 42x = 42 - 12 \\ \\ 6x = 30 \\ \\ x = \frac{30}{6} \\ \\ x = 5\)
CA = 14 + ( 3 + 3x)
CA = 14 + ( 3 + 3*5)
CA = 14 + ( 3 + 15)
CA = 14 + 18
CA = 32
1. Ben and Jane have been approved for a $220,000 loan, 30-year mortgage with an APR of 5. 82%. What will be the total amount interest paid over the 30 years? * 1
The total amount of interest paid over the 30 years is $246,750.40. with an APR of 5. 82%.
Loan amount = $220,000
APR = 5. 82%
Time = 30-year mortgage
To calculate the total amount of interest paid,
Total Interest = Total Payment - Loan Amount
To calculate the total payment, we can use the formula for the monthly payment on a mortgage:
Monthly Expenditure = (Loan Amount * Monthly Interest Rate) / (1 - (1 + Monthly Interest Rate)^(-Total Number of Payments))
Total Number of Payments = 30 years * 12 months/year = 360 months.
Interest Rate = 5.82% / 12 = 0.00485
Total Number of Payments = 360
Monthly Payment = (220000 * 0.00485) / \((1 - (1 + 0.00485)^{-360}\)
Monthly Payment = $1,294.84
Total Payment = Monthly Payment * Total Number of Payments
Total Payment = $1,294.84 * 360
Total Payment= $466,750.40
Total Interest = Total Payment - Loan Amount = $466,750.40 - $220,000 Total Interest = $246,750.40
Therefore, we can conclude that the total amount of interest paid over the 30 years is $246,750.40.
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In a quiz , team A scored 2 ,4 , -2 , 0 , -2 team B scored -4 ,2 , 2 ,-2 ,4 in successive5 rounds
.Which team scored more and by how much?
Please help
Answer:
a. 2 b. 2
Step-by-step explanation:
Find the exact values of x and y.
Answer:
x = 13 unitsy = 18.4 units
Step-by-step explanation:
from the angles we understand that it is an isosceles right triangle, therefore x is also 13, we find y with the Pythagorean theorem
y = √(13² + 13²)
y = √(169 + 169)
y = √338
y = 18.38 (you can round to 18.4)
Answer:
x = 13 , y = 18.38
Step-by-step explanation:
p.s. There is two ways to answer it.
In Triangle,
if there is a right angle, other angles are the same.
It the angles are the same, the two sides are the same.
So, x = 13
By the Converse of the Pythagorean Theorem , these values make the triangle a right triangle.
(hypotenuse)² = (side of right triangle)² + (other side of right triangle)²
(hypotenuse)² = 13² + 13²
(hypotenuse)² = 169 + 169
(hypotenuse)² = 338
hypotenuse = 18.38
so y = 18.38
please help with all questions possible pleaseee
properties if real numbers , name the property shown by each of the following
1. 3x · 2y = 3 · 2 · x ·y
2. 3(2x)y = (3 · 2)(xy)
3. 1/4 · 4y = 1y
4. 5x · (4y +3x) = 5x · (3x + 4y)
5. (6 + -6)y= 0y
Answer:
1. Commutative Property of Multiplication
2. Associative Property of Multiplication
3. Inverse Property of Multiplication
4. Commutative Property of Addition
5. Inverse Property of Addition
Step-by-step explanation:
The main four mathematical property types are:
Associative PropertyCommutative PropertyDistributive PropertyInverse PropertyAssociative Property
Grouping of numbers by parentheses in a different way does not affect their sum or product.
Applies to addition and multiplication only.
Addition: (a + b) + c = a + (b + c) = (a + c) + b
Multiplication: (a × b) × c = a × (b × c) = (a × c) × b
Commutative Property
Changing the order or position of two numbers does not change the end result.
Applies to addition and multiplication only.
Addition: a + b = b + a
Multiplication: a × b = b × a
Distributive Property
Multiplying a number by a group of numbers added together is the same as multiplying each number separately.
Addition: a(b + c) = ab + ac
Subtraction: a(b - c) = ab – ac
Inverse Property
Two numbers cancel each other out by adding or multiplying by their inverse. (The inverse of addition is subtraction and the inverse of multiplication is division).
\(\sf \bold{Addition}: \quad a+-a=0\)
\(\sf \bold{Multiplication}: \quad a \times \dfrac{1}{a} = 1\)
Question 1
\(3x \cdot 2y=3 \cdot 2 \cdot x \cdot y\)
Commutative Property of Multiplication, as changing the order or position of the terms does not change the end result.
Question 2
\(3(2x)y=(3 \cdot 2)(xy)\)
Associative Property of Multiplication, as the grouping of the terms by parentheses in a different way does not affect their product.
Question 3
\(\dfrac{1}{4} \cdot 4y=1y\)
Inverse Property of Multiplication, as the product of 4 and its reciprocal 1/4 is 1.
Question 4
\(5x \cdot (4y+3x)=5x \cdot (3x+4y)\)
Commutative Property of Addition, as changing the order or position of the terms in the parentheses does not change the end result.
Question 5
\((6+-6)y=0y\)
Inverse Property of Addition, as adding a number and its inverse together always produces zero.
The property shown by each of the following are:
1. Commutative Property of Multiplication
2. Associative Property of Multiplication
3. Inverse Property of Multiplication
4. Commutative Property of Addition
5. Inverse Property of Addition
The main four mathematical property types are:
Associative Property
Commutative Property
Distributive Property
Inverse Property
Associative Property
Grouping of numbers by parentheses in a different way does not affect their sum or product.
Applies to addition and multiplication only.
Addition: (a + b) + c = a + (b + c) = (a + c) + b
Multiplication: (a × b) × c = a × (b × c) = (a × c) × b
Commutative Property
Changing the order or position of two numbers does not change the end result.
Applies to addition and multiplication only.
Addition: a + b = b + a
Multiplication: a × b = b × a
Distributive Property
Multiplying a number by a group of numbers added together is the same as multiplying each number separately.
Addition: a(b + c) = ab + ac
Subtraction: a(b - c) = ab – ac
Inverse Property
Two numbers cancel each other out by adding or multiplying by their inverse. (The inverse of addition is subtraction and the inverse of multiplication is division).
Question 1
The property shown in 3x · 2y = 3 · 2 · x · y is the Commutative Property of Multiplication. This property states that the order of the factors in a multiplication expression does not affect the result.
Commutative Property of Multiplication, as changing the order or position of the terms does not change the end result.
Question 2
The property shown in 3(2x)y = (3 · 2)(xy) is the Associative Property of Multiplication. This property states that the grouping of factors in a multiplication expression does not affect the result.
Associative Property of Multiplication, as the grouping of the terms by parentheses in a different way does not affect their product.
Question 3
The property shown in 1/4 · 4y = 1y is the Multiplicative Inverse Property. This property states that when any real number is multiplied by 1, the result is the original number itself.
Inverse Property of Multiplication, as the product of 4 and its reciprocal 1/4 is 1.
Question 4
The property shown in 5x · (4y + 3x) = 5x · (3x + 4y) is the Commutative Property of Addition. This property states that the order of the terms in an addition expression does not affect the result.
Commutative Property of Addition, as changing the order or position of the terms in the parentheses does not change the end result.
Question 5
The property shown in (6 + -6)y = 0y is the Additive Inverse Property. This property states that for any real number a, there exists an additive inverse -a such that a + (-a) = 0. In this case, 6 and -6 are additive inverses of each other, so their sum is 0.
Inverse Property of Addition, as adding a number and its inverse together always produces zero.
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The following ordered pairs (x,y) define the relation Q.is Q a function (3,-2), (-3,1), (-2,-2), (1,-3)
The correct answer is: Yes, relation Q is a function,because there is exactly one y-value for every x-value.
To determine whether the given relation Q is a function, we need to check if each x-value is associated with a unique y-value. If there is any x-value that corresponds to multiple y-values, then the relation is not a function.
Let's examine the ordered pairs in relation Q: (3, -2), (-3, 1), (-2, -2), (1, -3).
We can see that each x-value in Q is associated with a unique y-value:
For x = 3, the y-value is -2.
For x = -3, the y-value is 1.
For x = -2, the y-value is -2.
For x = 1, the y-value is -3.
Since each x-value is paired with a unique y-value in relation Q, we can conclude that Q is a function.
In a function, every input (x-value) maps to a single output (y-value). If there were any repeated x-values with different y-values in the relation, it would indicate a violation of this rule and Q would not be a function. However, in this case, all the x-values have distinct y-values, satisfying the criteria for a function.
It's worth noting that we can also visualize this relation on a coordinate plane and check if there are any vertical lines that intersect the graph at more than one point. If there are no such lines, it confirms that the relation is a function.
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Tina has an old fish tank in the shape of a circular cylinder. The tank is 2 feet in diameter and 6 feet high. How many cubic feet of water does it hold?
Answer:
The tank can hold 18.84 cubic feet
Step-by-step explanation:
Given
Shape: Cylinder
\(D = 2ft\) -- Diameter
\(H = 6ft\) -- Height
Required
Determine the volume
First, calculate the radius (r)
\(r = \frac{1}{2}D\)
\(r = \frac{1}{2}*2ft\)
\(r = 1ft\)
The volume (V) of the tank is:
\(V = \pi r^2h\)
Substitute values for r and h
\(V = 3.14 *1^2*6\)
\(V = 3.14 *1*6\)
\(V = 18.84\)
Hence, the tank can hold 18.84 cubic feet