Using the binomial probability formula the value of P ( X = 4 ) = 23.04 %.
Given :
Biologists estimate that a baby elk has a 44% chance of surviving to adulthood. Assume this estimate is correct. Suppose researchers choose 7 baby elk at random to monitor. Let X = the number who survive to adulthood. Use the binomial probability formula to find P ( X = 4 ).
here ,
p = 0.44
q = 0.56
Number of trials n = 7
P ( X = 4 ) = C ( n , r ) * p^r * q^n - r
= C ( 7 , 4 ) * 0.44^4 * 0.56^7 - 4
= 35 * 0.44^4 * 0.56^3
= 0.23037
≈ 0.2304
= 0.2304 * 100%
= 23.04 %
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Write an equation and solve.
When two times the difference of a number x and three is increased by five, the result is nine. What is the number?
With all this information, and reading our question carefully, we can decipher the following:
9(n-3) = 3 + (9n + 3n)
9n - 27 = 3 + (9n +3n) (Step 1. Distributive Property)
9n - 27 = 3 + 12n (Step 2. Combine like terms; 9n + 3n = 12n)
-9n -9n (Step 3. Subtract 9n from both sides to isolate the variable)
______________
-27 = 3 + 3n
-3 -3 (Step 4. Subtract 3 from both sides)
________________
-30 = 3n
----- ----
3 3 (Step 5. Divide 3 from both sides)
________________
-10 = n
Therefore, n = -10
What is Distributive property?Distributive property explains that the operation performed on numbers, available in brackets that can be distributed for each number outside the bracket. It is one of the most frequently used properties in Maths. The other two major properties are commutative and associative property.The distributive property is easy to remember. There are a number of properties in Maths which will help us to simplify not only arithmetical calculations but also the algebraic expressions. In this article, you will learn what is distributive property, formula, and solved examples.to learn more about distributive property refer to:
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You win an online auction for a toy. Your winning bid of $30 is 60% of your maximum bid. How much more were you willing to pay for the toy than you actually paid?
Answer:
I was willing to pay $20 more for the toy than I actually paid.
Step-by-step explanation:
Let us take the maximum bid be y
So,
(y × 60) ÷ 100 = 30
60y/100 = 30
60y/100 × 100 = 30 × 100
60y = 3000
60y/60 = 3000/60
y = 50
60% of $50 is $30
So,
50 - 30 = 20
Thus, I was willing to pay $20 more for the toy than I actually paid.
Your chances of being killed or injured in such a crash are ____ times greater when you are thrown from your car than when you are buckled up.Answer: 5
Your chances of being killed or injured in such a crash are 5 times greater when you are thrown from your car than when you are buckled up
The safest decision that drivers and passengers can make is to use their seatbelts.
The national seat belt use rate was 90.4% in 2021, indicating that many Americans are aware of the life-saving benefits of seat belts.
In 2017, it is projected that 14,955 lives were saved by seat belt use in passenger automobiles.
Recognize the potentially devastating repercussions of not using a seat belt and discover how to always buckle up properly for you and your family.
Buckling up keeps you safe and secure within your car, whereas not doing so increases your chance of being completely ejected from the vehicle in an accident, which is virtually always fatal.
You need more protection than air bags.
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Which statement correctly demonstrates using limits to determine a vertical asymptote of g (x) = StartFraction 2 (x + 4) squared Over x squared minus 16 EndFraction
There is a vertical asymptote at x = 4 because Limit of g (x) as x approaches 4 minus = infinity and limit of g (x) as x approaches 4 plus = negative infinity
There is a vertical asymptote at x = 4 because Limit of g (x) as x approaches 4 minus = infinity and limit of g (x) as x approaches 4 plus = infinity
There is a vertical asymptote at x = –4 because Limit of g (x) as x approaches 4 minus = infinity and limit of g (x) as x approaches 4 plus = negative infinity
There is a vertical asymptote at x = –4 because Limit of g (x) as x approaches 4 minus = negative infinity and limit of g (x) as x approaches 4 plus = infinity
The correct option that describes the vertical asymptote is; B: There is a vertical asymptote at x = 4 because Limit of g (x) as x approaches 4 minus = infinity and limit of g (x) as x approaches 4 plus = infinity
How to find the vertical asymptote of a function?A vertical asymptote of a graph is defined as a vertical line x = a where the graph tends toward positive or negative infinity as the inputs approach a.
A vertical asymptote is a value of x for which the function is not defined, that is, it is a point which is outside the domain of a function;
In a graph, these vertical asymptotes are given by dashed vertical lines.
An example is a value of x for which the denominator of the function is 0, and the function approaches infinity for these values of x.
We are given the function;
g(x) = 2(x + 4)²/(x² - 16)
Simplifying the denominator gives;
(x² - 16) = (x + 4)(x - 4)
Thus, our function is;
g(x) = 2(x + 4)²/[(x + 4)(x - 4)]
(x + 4 ) will cancel out to give;
g(x) = 2(x + 4)/(x - 4)
Vertical asymptote:
Point in which the denominator is 0, so:
(x - 4) = 0
x = 4
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.
Your final grade in a class is based on your score on two tests and the final exam. You scored a 74% and 82% on the tests and an 80% on the final exam
The average grade received on two tests and the final exam is 78.67%
What is average?
The ratio of the sum of the values in a particular set to all the values in the set is the mean value, which is the definition of the average.
The average formula has numerous practical uses. If we were asked to determine the average male height in India or the average age of the men and women in a group, we would add up all the data and divide it by the total number of data points.
Given, the grades in tests are 74% and 82%. Also, the grade on final exam is 80%.
Now, considering that we have to find the average grade in tests and final exams combined, we put the average formula.
Average grade = Sum of percentages of each exam/Total exams
Thus, average is
= (74+82+80)%/3
= 236%/3
= 78.67%
The average grade received on two tests and the final exam is 78.67%.
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Find the value of k given that both points lie on a line passing through the origin. (−12,−2) and (k, 8)
Using the slope, the required value of k is 48.
What is the slope?In mathematics, the steeper direction of a line is overall processed by the slope or gradient of the line.
A line's slope can be used to determine how steep it is.
Theoretically, the gradient is calculated as "rise over run" (change in y divided by change in x).
Given is a line that crosses through the origin:
y = mx
Let,s take x = -12 and y = -2.
y = mx
-2 = -12m
m = -2/12
m = -1/6
m is the slope.
The equation now:
y = mx
y = -1/6x
Now, insert:
x = k and y = 8
y = mx
8 = -1/6x
x = 6*8
x = 48
Therefore, using the slope, the required value of k is 48.
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03 Multiple Choice
Select all of the expressions that are equivalent to 2/3 (9x + 6) -1/2(8x - 4)
M. 2(x + 1)
P. 2x+6
R. 2x + 2
S. 2(x + 3)
T. 8x
Answer:
The answer is 2x + 6 or 2(x + 3)
Step-by-step explanation:
2/3 (9x + 6) -1/2(8x - 4)
(18x + 12)/3 - (8x + 4)/2
6x + 4 - 4x + 2
Rearrange it
6x - 4x + 4 + 2
Combine like terms
2x + 6
Take 2 as common
2(x + 3)
Thus, The answer is 2x + 6 or 2(x + 3)
Which properties determine whether a quadrilateral is a parallelogram?
A. both pairs of opposite sides of a quadrilateral are both congruent and parallel
B. one pair of opposite sides of a quadrilateral is both congruent and parallel
C. it has 4 right angles
D. one pair of opposite sides of a quadrilateral is parallel
c is the answer. jdjsisiao
Which set of factors corresponds to a third-degree polynomial with rational coefficients that has zeros x=2 and x=3i
(x-2)(x²+9) is set of factors corresponds to a third-degree polynomial with rational coefficients.
What is polynomial?
In arithmetic, a polynomial is an expression consisting of indeterminates and coefficients, that involves solely the operations of addition, subtraction, multiplication, and positive-integer powers of variables.
Main body:
as the polynomial with rational coefficients that has zeros x=2 and x=3i
(x-2) and (x-3i) are factors of third-degree polynomial.
so ,
⇒(x-2)(x-3i)
solving (x-3i)
x = 3i
squaring both sides,
x² = -9
so , (x²+9) is a factor.
hence , (x-2)(x²+9) is set of factors corresponds to a third-degree polynomial with rational coefficients.
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Write a function that matches the graph.
A function that will match the given graph is; f(x) = 2(x - 5)²(x + 2)
How to interpret Polynomial Graphs?In polynomial graphs, we know that the roots are the points where the graph crosses or touches the x-axis.
In this given graph, we see that the graph touches the x-axis at x = 5 and then crosses the x-axis at x = -2. Thus;
The roots of the equation are -2 and 5.
However, when the graph changes sign at a point on the x-axis, it means that point represents double roots. Thus, we will now have three roots which are -2, 5 and 5. The factors of the polynomial are;
(x + 2), (x - 5)²
Now, we see that when x = 0, y = 100 from the graph. Thus;
a(0 + 2)(0 - 5)² = 100
a(50) = 100
a = 100/50
a = 2
Thus, the equation would now be;
f(x) = 2(x - 5)²(x + 2)
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If line BG and CF are parallel,then the supplement of BIE = the supplement of GMD. Is this statement correct? Explain your answers
The supplement of BIE equals the supplement of GMD is a false assertion if lines BG and CF are parallel.
Describe the supplement angle.Angles with a supplementary sum are those whose sum is 180 degrees. For instance, the total of angle 130° and angle 50° is 180°, hence they are supplementary angles.
Lines BG and CF are parallel, as shown in the figure.
If BIE = X, then its supplement of BIE will be 180 - X;
similarly, if GMD = Y, then its supplement of GMD will be 180 - Y.
Since BG and CF are parallel, the supplements of BIE and GMD are interior angles on the same side ( as shown in figure)
and for parallel line the interior angle on the same side is 180
so 180 - X and 180 -Y there sum should be 180
They cannot be equal
line BG and CF are parallel, then the supplement of BIE = the supplement of GMD are not equal.
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A die is rolled. Find the probability of the given event. Write your answers as whole numbers or reduced fractions. (a) The number showing is a 6 P(6)= (b) The number showing is an even number P(even) = (c) The number showing is greater than 5 P(greater than 5) =
Answer:lol
Step-by-step explanation:lol
which of the following commands is most likely to display the tls handshake between a client and the server at
A widely used security technology called Transport Layer Protection, or TLS, enables privacy and data security for communications over the Internet. Encrypting communication between online applications and servers, such as when web browsers load a webpage, is one of the main applications of TLS.
When a user accesses a website through HTTPS and the browser initially starts to enquire about the website's origin server, a TLS handshake occurs
Together, the client and server will perform the following during a TLS handshake:
Indicate the TLS version (TLS 1.0, 1.2, 1.3, etc.) they'll be using.
Select the cipher suites they'll employ (see list below).
Using the server's public key and the SSL certificate authority's digital signature, confirm the server's identity.
After the handshake, generate session keys to enable symmetric encryption.
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Choose the best way to complete each statement. Use the graph to help you.
Options
A: A little less than, A little greater than, Exactly
B: 1, 2.3, 12
C: 1, 2.3, 12
Anything helps.
The value will be 13.
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
According to the given graph of
⇒ f(x) = 3ˣ
The point for f(x) = 12
We can see that such x is situated between 2.2 and 2.3
Thus the solution for this be;
⇒ (2.2 + 2.3)/2
⇒ 2.25
As above the solution of 3ˣ = 12
Is x = 2.25 which is about 2
Now, put x = 2.3
Therefore;
3²°³ = 12.51 ≈ 13
Thus it is about 13.
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Write a function in any form that would match the graph shown below.
if the pic is blurry just zoom in!!
please need ASAPP!!!
5w-15 as equivalent fraction
The required equivalent expression is given as 5(w - 3).
What is the equation?The equation is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.
Here,
An equivalent expression of any expression is given as the simplifying the expression using various operations such as factors.
So,
Given expression,
= 5w - 15
As in the expression 5 is a common term between 5w and 15.
Take 5 commons and put the rest of the expression in the parenthesis.
= 5(w - 3)
Thus, the required expression is 5(w - 3).
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NO LINKS!! Please help me with this problem Part 2hh
Joe buys a sound system for $650 with his credit card.
If Joe pays the minimum monthly payment of $21.45:
a. How long will it take him to pay for the sound system in full?
b. What's the total amount he will pay for the sound system?
c. What's the total cost of using his credit card for the purchase?
THIS IS NOT MULTIPLE CHOICE!!!
Answer:
a. 31 months
b. $818.32
c. $168.32 interest
Step-by-step explanation:
Given that Joe makes a minimum payment of $21.45 on his credit card purchase of $650 with an APR of 19.85%, you want to know ...
how long until the purchase is paid offthe total amount paidthe cost of using the credit carda. Payoff timeIf the balance is reduced by $21.45 per month, it will take ...
$650/($21.45/mo) ≈ 30.3 months
to pay off the balance.
Joe will be making payments for 31 months.
b. Payoff amountThe total amount Joe pays for his sound system is the sum of its initial cost and the total of interest payments. That sum is ...
cost + interest = total paid
$650 +168.32 = $818.32
Joe will pay a total of $818.32.
c. Credit chargesThe total amount of interest Joe pays is $168.32.
__
Additional comment
If the total payment each month is $21.45, then it will take 43 months to pay off the system, for a total cost of $909.61, of which $259.61 is the cost of the credit. (The finance charge is paid first from this payment amount, so the amount that goes to reduce the balance is less.)
Which conjecture, if any, could be made about the sum of two even integers and one odd integer?
The sum will be an even integer.
The sum will be negative.
It is not possible to make a conjecture.
The sum will be an odd integer.
The sum will be an odd integer.
What is an integer?
An integer is an integer (not a fraction) that is positive, negative, or zero.
In mathematics, integers are collections of integers and negative numbers. Like whole numbers, whole numbers do not contain fractions. Therefore, we can say that integers are numbers that can be positive, negative, or zero, but which are not fractions.
Let p,q,r be three random numbers
Let S be the sum of two even integers and one odd integer
S = 2p + 2q + (2r + 1)
S = 2p + 2q + 2r + 1
S = 2(p+q+r)+1
This shows that S is odd integer for all values of p,q,r
Therefore, the sum will be an odd integer.
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Part A
Stand on-2. Which values on your number line are less than-2?
The values on a number line that are less than -2 include -3, -4 etc
What is a number line?A number line is a diagram of a graduated straight line used to represent real numbers in elementary mathematics. It is assumed that each real number and each point on a number line correspond to one another.
The horizontal straight lines known as number lines are where integers are arranged in equal intervals. A number line can be used to represent every number in a sequence. This line continues forever at both ends.
It should be noted that -3, and above are less than -2.
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Find the value of the variables in the given parallelogram.
Answer:
x = 58, y = 61
Step-by-step explanation:
We can use two properties of a parallelogram to solve this
1. The opposite angles of a parallelogram are equal
2. The sum of the 4 interior angles of a parallelogram equal 360
Using property 1,
the angle opposite angle y is also y(bottom left)2x + 3 = y + xUsing property 2
(2x - 3) + y + (y + x) + y = 360
3x + 3y + 3 = 360
3x + 3y = 360 - 3 = 357
Divide both sides by 3 to get
x + y = 357/3
x + y = 119 [2]
Add [1] and [2] together to eliminate y and get
x - y + x + y = -3 + 119
2x = 116
x = 116/2 = 58
Use equation [2]
x + y = 119
58 + y = 119
y = 119 - 58
y = 61
-3/2 passes through (-4, 3)
what is the y intercept and equation
(in slope intercept form)
Evaluate. Write your answer as a fraction in simplest form.
(2/5)³
The fraction in simplest form is [tex]\frac{8}{125}[/tex].
What is a fraction?
The components of a whole or group of items are represented by fractions. A fraction consists of two components. The numerator is the figure at the top of the line. It details the number of equal portions that were taken from the total or collection. The denominator is the figure that appears below the line. It displays the total number of identical objects in a collection or the total number of equal sections the whole is divided into.
Given, [tex](\frac{2}{5})^{3}[/tex]
= [tex]\frac{2}{5} *\frac{2}{5} *\frac{2}{5}[/tex]
= [tex]\frac{8}{125}[/tex]
Hence, the fraction in simplest form is [tex]\frac{8}{125}[/tex].
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the absolute value of -7-3
negative 7 minus three
Please hurry I have been stuck on this question for a while
One week, Heather opens a bank account with $125. Each week, starting the second week, she deposits $25 into her account.
What is the explicit rule for amount of money Heather has in her account after n weeks?
Enter the simplified answer in the box.
Answer:
125+25n
Step-by-step explanation:
We are given that
Heather opens a bank account with=$125
Each week she deposited money into her account=$25
We have to find the explicit rule for the amount of money that has Heather after n weeks.
Heather has money after 1 week=125+25=$150
Heather has money after 2 week=125+2(25)=$175
Heather has money after 3 weeks=125+3(25)=$200
Heather has money after n weeks=125+25(n)
Hence, the explicit rule for the amount of money that has Heather after n weeks is given by
125+25n
Use the vertex and intercepts to sketch the graph of each quadratic function give the equation of the parabola axis of symmetry use the graph to determine the function domain and range f(x)=(x-1)^2+2
The vertex of the parabola is (1,2) when the function is f(x) = (x-1)²+2 when the equation for the parabola's axis of symmetry.
Given that,
Give the equation for the parabola's axis of symmetry by sketching the graph of each quadratic function using its vertex and intercepts.
We have to determine the function domain and range using the graph is f(x) = (x-1)²+2
We know that,
Its vertex A quadratic function's form is provided by
f(x) = a(x-h)²+k
So, (h,k) is the vertex of the parabola
Take
f(x) = (x-1)²+2
(1,2) is the vertex of the parabola.
Therefore, The vertex of the parabola is (1,2) when the function is f(x) = (x-1)²+2 when the equation for the parabola's axis of symmetry.
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Enrique made $277.50 last week. He also made 10% commission on the $300 of sales he
made last week. How much did he make in total last week?
Answer:
307.50
Step-by-step explanation:
277.50 + .1(300)
277.50 + 30
307.50
Four friends paid a total of $32 for bowling. What is the ratio $32 for 4 people written as a unit rate?
Answer:
$8 per person
Step-by-step explanation:
32 divided by 4 is 8
32 : 4 = 8 : 1
A system of equations and its graph are shown.
y = 3/4x+3
y = -1/4x + 1
What is a solution to the system
Answer:
(-2, 1.5)
Step-by-step explanation:
When graphed their solution is (the point where both the line intercept/touch) (-2,1.5)
I graphed this equations online**
W is the midpoint of SU, TU ⊥ SU and SU ⊥ SV. Complete the proof that Δ SVW ≅ Δ UTW.
Statement Reason
1. W is the midpoint of SU Given
2. TU ⊥ SU Given
3. SU ⊥ SV Given
4. ∠S ≅ ∠U All right angles are congruent
5. ∠ SVW ≅ ∠ UTW Definition of midpoint
6. Δ SVW ≅ Δ UTW.
The proof that Δ SVW ≅ Δ UTW is given by ASA congruence criterion.
What do you mean congruence of triangle?Two triangles are said to be congruent if all three corresponding sides are equal and all the three corresponding angles are equal in measure. These triangles can be slides, rotated, flipped and turned to be looked identical. If repositioned, they coincide with each other.
The symbol of congruence is’ ≅’.
Given:W is the midpoint of SU
⇒ SW = WUTU ⊥ SU and SU ⊥ SV
To prove:Δ SVW ≅ Δ UTW
Proof:In Δ SVW and Δ UTWSW = UW (given)
∠S ≅ ∠U (given)
∠ SVW ≅ ∠ UTW (vertically opposite angle)
Therefore, Δ SVW ≅ Δ UTW (by ASA congruence criterion)
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need the answer pls help ots
Answer:
Your answer is x = 47.
Step-by-step explanation:
First, you need to move the constant to the right-hand side and change its sign.
4x = 180 + 8
Now, you need to add the numbers.
4x = 188
Last but not least, you need to divide both sides of the equation by 4, which gets you to:
x = 47
