The probability that a student chosen at random plays both sport and instrument is 3/17.
What is probability?Probability is the likelihood of an event happening or not happening.
Analysis:
let s represent sport, and I represent instrument.
Total number of students = 26
n(s) = 5
n(I) = 15
n(I n S) = 3
n(s n i') = 5 - 3 = 2
n( s' n I) = 15 - 3 = 12
n( S u I) = 2 + 12 + 3 = 17
17 students play sport, instrument or both.
probability students plays both = 3/17
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Answer:
3/26
Step-by-step explanation:
yes
What is a perfect square 6^1
A perfect square refers to a number that is the result of multiplying an integer by itself. In this case, 6^1 is equal to 6.
However, 6 is not a perfect square because it cannot be obtained by multiplying an integer by itself. The perfect squares up to 6^1 would be 1^2 = 1 and 2^2 = 4.
has a perimeter of 52 feet. Let W be the width, L be the length, and P be
the perimeter, all with units in feet.
a. Given two sets of four rectangles, find one rectangle in each set that could have a
perimeter of 52 feet.
b. Which of the symbols W, L, and P are variables?
c. Which of the symbols W, L, and P are constants?
A rectangle that could have a perimeter of 52 feet is a 12 feet by 14 feet rectangle.
The symbols W and L are variables.
The symbol P is a constant.
How to calculate the perimeter of a rectangle?In Mathematics and Geometry, the perimeter of a rectangle can be calculated by using this mathematical equation (formula);
P = 2(L + W)
Where:
P represent the perimeter of a rectangle.W represent the width of a rectangle.L represent the length of a rectangle.By substituting the given side lengths into the formula for the perimeter of a rectangle, we have the following;
P = 2(L + W)
52 = 2(12 + 14)
52 = 2(26)
52 feet = 52 feet.
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Find area of triangle ABC
Answer:
30cm²Step-by-step explanation:
To calculate the area of a triangle, multiply the height by the width (this is also known as the 'base') then divide by 2.
6 * 10 : 2 =
30cm²
Would really appreciate if someone helped me with this one please!
a) The value of x is 21
b) The value of the expression is 135.
c) The value of the expression is 135.
How to find the value of x?Here we know that the lines G and M are parallel, meaning that the two shown angles are alternarte exterior angles, and thus, have the same measure, then we can write:
5*(x + 6) = 9*(x - 6)
We can solve that linear equation for x:
5x + 30 = 9x - 54
30 + 54 = 9x - 5x
84 = 4x
84/4 = x
21 = x
Then the measures of the angles are:
a1 = 5*(21 + 6) = 135°
a2 = 9*(21 - 6) = 135°
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7 > −3; Subtract 7 from both sides.
The resulting inequality is :
Answer:
0 > -10
True
Step-by-step explanation:
7 > -3 Starting with a true statement. This math sentence says, "7 is greater than -3"
7 > -3
-7 -7 Subtract 7.
Working vertically now (from the top, down)
7 > -3
-7 -7
_______
0 > -10
Because 7-7 is 0 on the left side. And
-3-7 is -10 on the right side. This statement is true, because zero is bigger than -10.
Find the value of the variables or indicated side length in each isosceles triangle.
Answer:
x = 9°
y = 39°
Step-by-step explanation:
7x = 63
x = 9°
3y + 63 = 180
3y = 117
y = 39°
65 points!!!!!!!!!
Malaya is standing directly between a 90 foot tall courthouse and a 54 foot tall bank. If the angle of elevation from the point where Malaya is standing to the top of the courthouse is 72 degrees, while the angle of elevation to the top of the bank is 35 degrees. What is the distance between the courthouse and the bank? Show all your work to get credit!
Answer:
106.36 ftStep-by-step explanation:
Let the distance from the point Malaya is standing to the courthouse be x and the distance to the bank is y
x + y is the distance between the courthouse and the bankThen we have:
x/90 = cot 72° ⇒ x = 90 cot 72° = 90*0.3249196962 = 29.24 ft (rounded)y/54 = cot 35° ⇒ y = 54 cot 35° = 54*1.4281480067 = 77.12 ft (rounded)x + y = 29.24 + 77.12 = 106.36 ftAnswer:
106.3ft
Step-by-step explanation:
x= tan72=90/x
x= 90/tan 72
x= 29.2
y= tan35=54/y
y= 54/tan35
y= 77.1
x+y= answer
29.2 + 77.1 = 106.3
List the factor pairs of 20. 20 = 1.20 20 ? ? 20 = ? 2 +
1) Counting the circles, we can write the following
20 = 1 x 20
20 = 4 x 5
20 = 2 x 10
2) So that's the answer
The points A, B, C and D lie in order on a straight line
such that
AB:BD = 1:2
AC:CD= 7:2
Find AB:BC:CD
Answer:
7 + 2 = 9, so AC = 7/9 and CD = 2/9
1 + 2 = 3, so AB = 1/3 = 3/9 and
BD = 2/3 = 6/9
AB + BC = AC
3/9 + BC = 7/9, so BC = 4/9
AB:BC:CD = (3/9):(4/9):(2/9) = 3:4:2
Mark all of the statements that are true.
A. The domain for this function is the set {-5).
B. All real numbers are in the range of this function.
C. The domain for this function is all real numbers.
D. The range for this function is the set {-5).
E. This graph is not a function because the value of y is the same for every value of x
Option E:
This graph is not a function because the value of y is the same for every value of x
Solution :
Domain:
The domain of a function is the set of its possible inputs, i.e., the set of input values where for which the function is defined. In the function machine metaphor, the domain is the set of objects that the machine will accept as inputs.
For example, when we use the function notation f:R→R, we mean that f is a function from the real numbers to the real numbers. In other words, the domain of f is the set of real number R (and its set of possible outputs or codomain is also the set of real numbers R).
relation represents y as a function of x
1) is NOT a function of if there are two or more points with the same − , but
− .
2) is a function of if each has a different
There is a technique called the vertical line test that is often used to determine if a graph represents y
as a function of x
In this question only a horizontal line is present.
Option E:
This graph is not a function because the value of y is the same for every value of x
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Which order pairs are solution to the inequality Y-3x<-8
Answer:
your answer are c and d hope it helps .
If P = (-2,-1) and Q = (4,3) are the
endpoints of the diameter of a circle,
find the equation of the circle.
(x - [?])2 + (y - [ ])2 = []
Answer:
Step-by-step explanation:
P(-2,-1) and Q(4,3)
average of x-coordinates = (-2+4)/2 = 1
average of y-coordinates = (-1+3)/2 = 1
midpoint of PQ: (1,1)
distance between midpoint and Q = √((4-1)²+(3-1)²) = √13
(x-1)² + (y-1)² = 13
The equation of the circle is \((x - 1)^{2} + (y - 1)^{2} = \frac{52}{4}\)
What is circle and its equation?A circle is a shape consisting of all points in a plane that are at a given distance from a given point (the Centre) Equivalently .
Equation of circle
The equation of circle provides an algebraic way to describe a circle, given the center and the length of the radius of a circle.
The equation of circle represents all the points that lie on the circumference of the circle .
The standard equation of a circle with center at \((h , k )\) and radius r is
\((x - h)^{2} + (y - k)^{2} = r^{2}\)
What is distance formula?The distance formula in coordinate geometry is used to calculate the distance between two given points.
The formula says the distance between two points (\(x_{1} ,y_{1}\)), and (\(x_{2} , y_{2}\))
\(Distance(D) = \sqrt{(x_{2} - x_{1} )^{2} + (y_{2} - y_{1} )^{2} }\)
What is mid point formula?The Midpoint Formula:
The midpoint of two ends coordinates points, (\(x_{1} ,y_{1}\)), and (\(x_{2} , y_{2}\)) is the point M can be found by using:
\(M = \frac{x_{1} + x_{2}}{2}, \ \ \frac{y_{1} + y_{2}}{2}\)
According to the question
P = (-2,-1) and Q = (4,3) are the
endpoints of the diameter of a circle
Therefore, distance between point P and Q which is diameter of circle is
\(Distance(D) = \sqrt{(x_{2} - x_{1} )^{2} + (y_{2} - y_{1} )^{2} }\)
P(-2,-1) = (\(x_{1} ,y_{1}\))
Q (4,3) = (\(x_{2} , y_{2}\))
Now,
Diameter of circle = \(\sqrt{(4 - (-2) )^{2} + (3 - (-1) )^{2} }\)
= \(\sqrt{(6 )^{2} + (4 )^{2} }\)
= \(\sqrt{(36 + 16) }\)
= \(\sqrt{52}\)
As , radius = \(\frac{diameter }{2}\)
radius (r) = \(\frac{\sqrt{52}}{2}\)
As we know The center of the circle separates the diameter into two equal segments called radii and radii are equal in a circle .
i.e mid point of coordinates of diameter are coordinates of circle .
\(M = \frac{x_{1} + x_{2}}{2}, \ \ \frac{y_{1} + y_{2}}{2}\)
\(Centre of circle (h,k) = \frac{x_{1} + x_{2}}{2}, \ \ \frac{y_{1} + y_{2}}{2}\)
\(h = \frac{x_{1} + x_{2}}{2}, \ \ k = \frac{y_{1} + y_{2}}{2}\)
\(h = \frac{ -2 + 4}{2}, \ \ k = \frac{-1 + 3}{2}\)
\(h = 1, \ \ k = 1\)
Now , substitute the value in the equation of circle
\((x - h)^{2} + (y - k)^{2} = r^{2}\)
\((x - 1)^{2} + (y - 1)^{2} = \frac{52}{4}\)
Hence, the equation of the circle is \((x - 1)^{2} + (y - 1)^{2} = \frac{52}{4}\)
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Find an autonomous differential equation with all of the following properties:
equilibrium solutions at y=0 and y=3,
y' > 0 for 0 y' < 0 for -inf < y < 0 and 3 < y < inf
dy/dx =
The differential equation dy/dt = y(3-y) smug all of the given conditions.
One possible autonomous differential equation with equilibrium solutions at y=0 and y=3, and with y' > 0 for 0 < y < 3 and y' < 0 for -∞ < y < 0 and 3 < y < ∞, is:
dy/dt = y(3-y)
We can see that y=0 and y=3 are equilibrium solutions by setting dy/dt = 0 and solving for y:
dy/dt = y(3-y) = 0
y = 0 or y = 3
To check the sign of y', we can use the derivative of y(3-y) with respect to y: d/dy (y(3-y)) = 3 - 2y
For y < 0, we have y(3-y) < 0, so d/dy (y(3-y)) < 0, which says that y' < 0.
For 0 < y < 3, we have y(3-y) > 0, so d/dy (y(3-y)) > 0, which implies that y' > 0.
For y > 3, we have y(3-y) < 0, so d/dy (y(3-y)) < 0, which implies that y' < 0.
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The U.S. Bureau of the Census predicted that the population of South Carolina would be approximately 17.4 million in 2010 and then would increase by about .22 million per year until 2015. Which of the following linear models predicts the population, y, of South Carolina (in millions) in terms of x, the number of years since 2010. Group of answer choices
Answer:
The answer is y = .22x + 17.4
Step-by-step explanation:
I got it right on a major test. just trust me
En una ciudad de 5000 habitantes, la tasa diaria
de infección con un virus de la gripe varia directamente con el producto de
personas infectadas y el número de personas no infectadas. Cuando se han
infectado 1000 personas, la gripe se esparce a razón de 40 nuevos casos por día.
¿Para qué número de personas infectadas, la tasa diaria de infección es la
máxima?
According to the information, the maximum infection rate is: k * 2500 * (5000 - 2500) = 6250k = 40
How to calculate for what number of infected people, the daily infection rate is the maximum?To address this problem, we can use the law of the infection rate, which states that the infection rate is directly proportional to the product of the number of people infected and the number of people not infected. Therefore, we can write:
infection rate = k * (infected people) * (uninfected people)where "k" is a constant of proportionality. Since we want to find the number of people infected that produces the maximum infection rate, we can consider the infection rate as a function of the variable "x" representing the number of people infected. Therefore, we can write:
infection rate = k * x * (5000 - x)To find the value of "x" that maximizes the infection rate, we can derive this function and set the derivative equal to zero:
d(infection rate)/dx = k * (5000 - 2x) = 0This implies that 5000 - 2x = 0, and therefore:
x = 2500Therefore, the number of infected people that produces the maximum daily rate of infection is 2,500.
However, we must verify that this result is consistent with the information given in the problem. We know that when there are 1,000 people infected, the flu spreads at the rate of 40 new cases per day. Therefore, if we add 1,500 more infected people (for a total of 2,500), the infection rate would be:
infection rate = k * 2500 * (5000 - 2500) = 6250kIf the infection rate is 40 new cases per day, we have:
40 = 6250kwhich implies that:
k = 0.0064Therefore, the maximum infection rate is:
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Susie has a rectangular dining room that has an area of 84. What is the area of the largest circular rug Susie can fit in her dining room?
Answer:
25\(\pi\)
Step-by-step explanation:
\(\pi\)r^2 is the formula for a circle (in this case, a circular rug)
and we would set it equal to 84 (since we are trying to get the biggest size possible).
We would isolate r so that r^2 = 84/\(\pi\), and r would be around 5.17219.
If we were going by rounding 5 would be the largest radius possible and the radius would be 25\(\pi\) or about 78.5398 units.
Answer:
Rounded to one decimal place, the maximum area circular rug that can fit in the dining room is 38.5 square feet.
Please See the attached screenshot for the exact solutions and answer for this question
consider the infinite geometric series.in this image the lower limit of the summation is "n=1"a. Write the first four terms of the series.b. Does the series diverge or converge? c. If the series has a sum, find the sum.
The geometric series is;
\(s_n=\sum ^{\infty}_{n\mathop=1}-4(\frac{1}{3})^{n-1}\)when n=1, we have
\(s_1=-4(\frac{1}{3})^{1-1}=-4(\frac{1}{3})^0=-4\times1=-4\)When n=2, we have,
\(s_2=-4(\frac{1}{3})^{2-1}=-4(\frac{1}{3})^1=-4\times\frac{1}{3}=-\frac{4}{3}\)When n = 3, we get,
\(s_3=-4(\frac{1}{3})^{3-1}=-4(\frac{1}{3})^2=-4\times\frac{1}{9}=-\frac{4}{9}\)when n = 4, we get,
\(s_4=-4(\frac{1}{3})^{4-1}=-4\times(\frac{1}{3})^3=-\frac{4}{27}\)a. So, the first four terms of the series are: - 4, -4/3, -4/9 and -4/27
The sum to infinity of the series is:
\(S_{\infty}=\frac{a}{1-r}=\frac{-4}{1-\frac{1}{3}}=\frac{-4}{\frac{2}{3}}=\frac{-4\times3}{2}=-2\times3=-6\)b. The series, as we can see, is CONVERGENT, because it has a definite value as its sum.
c. The sum of the series is - 6
A teaching hospital in South-West Part of Nigeria receives on the average 5 pregnant women with high blood pressure per week. What is the probability that on a particular week, the teaching hospital will receive:
1.) No high BP pregnant woman
Answer:
The probability that on a particular week, the hospital will receive on high BP pregnant woman is 0.0068
Step-by-step explanation:
We use the Exponential distribution,
Since we are given that on average, 5 pregnant women with high blood pressure come per week,
So, average = m = 5
Now, on average, 5 people come every week, so,
5 women per week,
so, we get 1 woman per (1/5)th week,
Hence, the mean is m = 1/5 for a woman arriving
and λ = 1/m = 5 = λ
we have to find the probability that it takes higher than a week for a high BP pregnant woman to arrive, i.e,
P(X>1) i.e. the probability that it takes more than a week for a high BP pregnant woman to show up,
Now,
P(X>1) = 1 - P(X<1),
Now, the probability density function is,
\(f(x) = \lambda e^{-\lambda x}\)
And the cumulative distribution function (CDF) is,
\(CDF = 1 - e^{-\lambda x}\)
Now, CDF gives the probability of an event occuring within a given time,
so, for 1 week, we have x = 1, and λ = 5, which gives,
P(X<1) = CDF,
so,
\(P(X < 1)=CDF = 1 - e^{-\lambda x}\\P(X < 1)=1-e^{-5(1)}\\P(X < 1)=1-e^{-5}\\P(X < 1) = 1 - 6.738*10^{-3}\\P(X < 1) = 0.9932\\And,\\P(X > 1) = 1 - 0.9932\\P(X > 1) = 6.8*10^{-3}\\P(X > 1) = 0.0068\)
So, the probability that on a particular week, the hospital will receive on high BP pregnant woman is 0.0068
3 6 9 12 15 18 21 24 27 30 is odd or even numbers?
Answer: Half of them are even and half of them are odd.
Step-by-step explanation:
The even numbers are 6, 12, 18, 24, and 30. An even number is defined as a number that is divisible by 2, meaning it has no remainder when divided by 2. For example, 6 divided by 2 equals 3 with no remainder, so 6 is even.
The odd numbers are 3, 9, 15, 21, and 27. An odd number is defined as a number that is not divisible by 2, meaning it has a remainder of 1 when divided by 2. For example, 9 divided by 2 equals 4 with a remainder of 1, so 9 is odd.
Therefore, out of the given numbers, half of them are even and half of them are odd.
________________________________________________________
Given vectors
u
=
u=⟨3,2⟩ and
v
=
,
v=⟨−1,3⟩, find the sum
u
+
v
u+v and write the result in component form.
Answer:
option 2, 3, and 5
Step-by-step explanation:
yuh
The product of two numbers is 155952. If one number is 342, find the other
number.
Answer:
456
Step-by-step explanation:
Product means an answer derived from multiplication. Therefore, if the product is 155952, and one value is 342, then the following equation is true:
342x = 155952, or 342 * x = 155952
Divide 155952 by 342 to get: 456.
Check the work in the equation:
342(456) = 155952
155952 = 155952, which is true, so the answer is 456.
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What is the length of FG?
(Picture of Question Below!)
A. 1.2
B. 3
C. 3.6
D. 4 ( IT IS NOT D!)
E. 6
9514 1404 393
Answer:
C. 3.6
Step-by-step explanation:
AC = FA + FC = 4+6 = 10
AC is the hypotenuse of right triangle ABC, which has leg BC = 8. Then the length of AB is given by the Pythagorean theorem as ...
AB² +BC² = AC²
AB = √(10² -8²) = 6
The side lengths of these similar triangles are proportional, so you have ...
FG/FC = AB/AC
FG = FC(AB/AC) = 6(6/10)
FG = 3.6
How many significant figures are in the number
43.6? 43.6 has [?] significant figures.
Answer:
43.6 has 3 significant figures.
Please answer question now
Answer:
\(\overrightarrow{VU}\text{ and }\overrightarrow{VW}\)
Step-by-step explanation:
From the given figure it is clear that we two rays because both sides have one endpoint and goes on infinitely in only one direction.
If a ray has end point at A and goes on infinitely in only one direction towards point B, then ray is denoted as \(\overrightarrow{AB}\).
For first side, we have point V as end point and ray goes goes on infinitely in only one direction towards point U. So, first side is \(\overrightarrow{VU}\).
For second side, we have point V as end point and ray goes goes on infinitely in only one direction towards point W. So, second side is \(\overrightarrow{VW}\).
Therefore, the sides are \(\overrightarrow{VU}\text{ and }\overrightarrow{VW}\).
A store purchased a set of golf clubs for $90.70 and marked it up 150%. During a sale, the
store marked it down 80%. What was the discount price of the set of golf clubs?
Answer:
$181.4
Step-by-step explanation:
Note,
purchase price = $90.70.initial markup of 150% = $90.70 * (150% or 150/100) + $90.70 = $226.75 ($136.05 + $90.70). Hence, this became the intended sale price wanted by the store.mark down (-) 80% = $226.75 * (80% or 80/100) = $181.4.Therefore, the store applied a discount price of $181.4 to the set of golf clubs.
Determine the intercepts of the line. Do not round your answers. y − 6 = 4 ( x + 5 )
Answer:
x = (- \(\frac{13}{2}\), 0)
y = (0,26)
Step-by-step explanation:
To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.
NO LINKS!!! URGENT HELP PLEASE!!!!
d. d is between 3 and 1.
1. d < 1 < 3
2. 1 < 3 < d
3. 1 < d < 3
4. 1 ≤ d ≤ 3
5. 3 ≥ d ≥ 1
e. t is no less than 6
1. t > 6
2. t < 6
3. t = 6
4. t ≤ 6
5. t ≥ 6
f. The negative of z is not greater than 7
1. z ≤ -7
2. -z ≤ 7
3. z < 7
4. -z < 7
5. z ≤ 7
Answer:
d.
3. 1 < d < 3
e.
1. t > 6
f.
2. -z ≤ 7
Step-by-step explanation:
To express the given statements as an inequality, we need to determine the relationship between the given quantities.
d. The statement "d is between 3 and 1" means that d is greater than 1 and less than 3. Mathematically, we can represent this as 1 < d < 3.
e. The statement "t is no less than 6" means that t is greater than or equal to 6. Mathematically, we can represent this as t > 6.
f. The statement "The negative of z is not greater than 7" means that the value of -z is less than or equal to 7. Mathematically, we can represent this as -z ≤ 7.
Answer:
d) 3. 1 < d < 3
e) 5. t ≥ 6
f) 2. -z ≤ 7
Step-by-step explanation:
Inequality symbol notation< means "less than".> means "greater than".≤ means "less than or equal to".≥ means "greater than or equal to".≠ means "not equal to".Part dIf d is between 3 and 1 then d is greater than 1 and less than 3.
Therefore, the expression of this statement is:
1 < d < 3Part eIf t is no less than 6, then t is greater than or equal to 6.
The expression of this statement as an inequality is:
t ≥ 6Part fIf the negative of z is not greater than 7, then the negative of z must be less than or equal to 7.
The expression of this statement as an inequality is:
-z ≤ 710. Quadrilateral PQRS with P(-5,1). Q(-2,6), R(3,7), and S(6,4); dilate by a factor of 1/2 12 a. Is this an enlargement or reduction? How do you know? 14 b. What are the vertices of the image after the transformation?
a.
The dilation is a reduction, this comes from the fact that the dilation factor is less than 1.
b.
A point after a dilation is given as:
\((x,y)\rightarrow(kx,ky)\)where k is the dilation factor.
In this case we need to divide all the coordinates by two, then we have that:
\(\begin{gathered} P^{\prime}(-\frac{5}{2},\frac{1}{2}) \\ Q^{\prime}(-1,3) \\ R^{\prime}(\frac{3}{2},\frac{7}{2}) \\ S^{\prime}(3,2) \end{gathered}\)14Y - 7y = 35. solve for y
Answer:
y = 5
Step-by-step explanation:
\(14y-7y=35\\7y=35\\y=5\)
14 minus 7 is 7
7Y is equal to 35
divide both sides by 7 is equal to 5
Please look at the photo for the question. Thank you!
The zeros with each multiplicity are given as follows:
Multiplicity one: x = 6.Multiplicity two: x = 11.Multiplicity three: x = -6 and x = -5.How to obtain the multiplicities?The factor theorem is used to define the functions, which states that the function is defined as a product of it's linear factors, if x = a is a root, then x - a is a linear factor of the function.
Considering the linear factors of the function in this problem, the zeros are given as follows:
(x + 6)³ -> zero at x = -6 with multiplicity of 3.(x - 11)² -> zero at x = 11 with multiplicity of 2.x - 6 -> zero at x = 6 with multiplicity of 1.(x + 5)³ -> zero at x = -5 with multiplicity of 3.More can be learned about the Factor Theorem at brainly.com/question/24729294
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