Answer: C
Step-by-step explanation:
30 x 1.029
30.87
a. 5.2
b. 8.5
c. 7.4
d. 6.3
Answer:
c.7.4
Step-by-step explanation:
<BDE=90°
Now,in RT.angled triangle BDE,
BD=√(BE)²-(DE)²
or, BD=√64-9
or,BD=√55
:.BD=7.41
Australia is approximately 2441 miles in width.
How many kilometers wide is Australia?
Use 1 km = 0.6214 mi
km
Answer:
3928.4087
Step-by-step explanation:
2441/0.6214
The width of Australia in kilometres will be equal to 3928.4087 km.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Australia is approximately 2441 miles in width. The width of Australia in kilometres will be calculated as,
1 km = 0.6214 miles
1 mile = 1 /0.624 kilometres
Width = 2441/0.6214
Width = 3928.4087 kilometres
Hence, the width of Australia in kilometres is 3928.4087.
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Two years ago, you purchased a $1,000 par value corporate bond with a coupon interest rate of 6.5 percent. Today, comparable bonds are paying 5.75 percent. What is the approximate dollar price for which you could sell your bond? (Do not round intermediate calculations. Round your answer to 2 decimal places.)
Answer:
you could sell is for $10,000
Step-by-step explanation:
because it increased in value you could sell it for more
what is the shortest side of a triangle when the numbers are 63,47,70
The shortest side of a triangle is just opposite of the angle 47°.
What is mean by Triangle?
A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
Given that;
All the angle of a triangle are,
⇒ 63°, 47°, 70°
Now,
Since, All the angle of a triangle are,
⇒ 63°, 47°, 70°
We know that;
The smallest side of a triangle is just opposite of the smallest angle.
Thus, The shortest side of a triangle is just opposite of the angle 47°.
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use these grids and, in each case, find the number of paths from a to b, traveling along grid lines. at any given intersection, you may proceed only to the right (r) or down (d). (hint: a path is a sequence of r's and d's.)
Use the multinomial rule, the possible number of paths from A to B is m! n1! ×n2!
How do you find the number of paths on a grid?
To generalize our formula for any NxN grid, we can write: Incidentally, there is an easier way to write this: the number D = N! / (K! * (N-K)!) is also called the binomial coefficient and we can write (N choose K).
You may create a table by combining several question kinds using the grid question type. This implies that you could, for instance, create a grid that included both a multiple-choice question and a free-text inquiry.
A map's grid is a pattern made up of both horizontal and vertical straight lines. They cross one another to create a group of squares. On a map, grids aid in location finding. At the top, there are numbered gaps between the horizontal (side-to-side) lines.
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Given: A AED and A BEC are isosceles, with congruent bases AD and BC Prove: ABCD is a rectangle
We have proved that ABCD is a rectangle.
What is the isosceles triangle?
An isosceles triangle in geometry is a triangle with two equal-length sides. It can be specified as having exactly two equal-length sides or at least two equal-length sides, with the latter definition including the equilateral triangle as an exception.
<EAD=<EDA ------------------∆AED is isosceles triangle.
<EBC=<ECB ------------------ ∆EBC is isosceles triangle.
AD= BC -------------------------Given
<AED=<BEC ------------------- Vertically opposite angle
<EAD=<ECB
2<EAD=180°- <AED
= 180°-<BEC
=2<ECB.
∆AED congruent to ∆BEC --------- By A-S-A Congruency.
AE=EC, DE=EB ----------Corresponding sides
ABCD is a parallelogram ----------- Diagonals bisect to each other.
AC=BD
AE+EC=DE+EB.
ABCD is a rectangle. ------------- Diagonals are equal.
Hence, we have proved that ABCD is a rectangle.
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Alex can earn $15 an hour mowing neighborhood lawns on weekends. If Alex decides to spend an hour mowing rather than watching a football game, his opportunity cost of mowinf lawns is:
a. The $15 he earns
b. The enjoyment he would have received from watching the football game during that time.
c. The $15 he earns minus the enjoyment he would have received from watching the football game during that time.
d. The $15 he earns plus the enjoyment he would have received from watching the football game during that time.
e. Nothing because he would have received $15 worth of enjoyment from watching the football game during that time
The opportunity cost of mowing the lawn is The $15 he earns minus the enjoyment he would have received from watching the football game during that time.
Opportunity costs are the possible advantages that a person, investor, or company forgoes while deciding between two options. Opportunity costs are by definition invisible, making it simple to ignore them. Making smarter decisions requires an understanding of the possible opportunities lost when a company or person selects one investment over another.
Opportunity Cost =FO−CO where:
FO=Return on best-forgone option
CO=Return on the chosen option
The formula for calculating an opportunity cost is simply the difference between the expected returns of each option.
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PLEASE HELP NOW!!!!!
The percentage for blue balls will be 56% and the percentage for red balls will be 44%.
What is the percentage for the colors of the gumball?A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100. The percentage therefore refers to a component per hundred.
In this situation, there are 4000 balls and 2240 of then are blue while 1760 area red.
The percentage for blue balls will be:
= Number of blue balls / Total balls × 100
= 2240 / 4000 × 100
= 56%
The percentage for red balls will be:
= Number of red balls / Total balls × 100
= 1760 / 4000 × 100
= 44%
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anybody want to answer this? give the right answer tho
Length of rectangle Width of rectangle Area of rectangle
A. a + 5 3 3(a + 5) = 3a + 15
B. 6 + x 1/3 1/3(6 + x) = 2 + 1/3x
C. 3 r r(1+1+1) = 3r
What is a rectangle?
An example of a quadrilateral with equal and parallel opposite sides is a rectangle. It is a polygon with four sides and four angles that are each 90 degrees. A rectangle is a shape with only two dimensions.
A.
There are 2 rectangles with side a and 5.
Therefore the length of the rectangle is (a + 5).
The width the rectangle is 3.
The area of rectangle is product of length and width.
The area of the rectangle is 3(a + 5)
Applying distributive property:
= 3a + 15
B.
There are 2 rectangles with side 6 and x.
Therefore the length of the rectangle is (6 + x).
The width the rectangle is 1/3.
The area of rectangle is product of length and width.
The area of the rectangle is 1/3(6 + x)
Applying distributive property:
= 2 + 1/3 x
C.
There are 3 rectangles with side 1, 1, and 1.
Therefore the length of the rectangle is (1 + 1 + 1).
The width the rectangle is r.
The area of rectangle is product of length and width.
The area of the rectangle is r(1 + 1 + 1)
Applying distributive property:
= r + r + r
= 3r
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This question is based on a time when people needed to log in to email servers to write emails. Assume that Adam logs in to an email server at time zero. He then spends his time exclusively on writing emails. The times that his emails are sent can be modeled by a Poisson process with a rate
λ A
/
hour. His friend Brianna also logs in to the server at time 1 (which means 1 hour later) and starts typing emails independently of Adam. The time that her emails are sent also can be modeled by a Poisson process with a rate
λ B
/
hour. (a) (6 points) Let
Y 1
, and
Y 2
be the times at which Adam's first and second emails were sent. Find
E[Y 2
∣Y 1
]
(b) (8 points) Similar to the last question, let
Y 1
and
Y 2
be the times at which Adam's first and second emails were sent. When Brianna logs in to the server, you are told that Adam has sent exactly one email so far. (b.1) (4 points) What is the conditional expectation of
Y 1
given this information? (b.2) (4 points) What is the conditional expectation of
Y 2
given this information? (c) (8 points) Find out the PMF of the total number of emails sent by two of them together during the interval of
[0,2]
(which means in the first two hours). (d) (8 points) Given that a total of 10 emails were sent during the period of
[0,2]
(the first two hours), what is the probability that exactly four emails were sent by Adam? (e) (10 points) Suppose that
λ A
=4
. Use Chebyshev's (4 points) and Markov's (4 points) inequality to find upper bounds on the probability that Adam sent at least five emails during the time interval [0, 1 ]. Which one provides a better bound ( 2 points)?
The upper bounds on the probability that Adam sent at least five emails during the time interval is [0, 1].
in math upper bound refers a number that is greater than or equal to any number in a set
Here we have given that, Adam logs in to an email server at time zero. He then spends his time exclusively on writing emails. His friend Brianna also logs in to the server at time 1 (which means 1 hour later) and starts typing emails independently of Adam.
And we need to find the upper bounds on the probability that Adam sent at least five emails during the time interval.
While we looking into the given question, we have identified that Adam Poisson process with a rate λ A/hour and Brianna Poisson process with a rate λ B/hour.
Here let us consider that Y1 and Y2 be the times at which Adam's first and second emails were sent.
Here we know that the Brianna logs in to the server, you are told that Adam has sent exactly one email so far.
So, here the upper limit while logging is 1. So, the lower limit is 0.
Because these is the real life scenario so the negative value is not applicable.
Therefore, the resulting interval is [0, 1].
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solve by completing the square
Answer:
Attached
Step-by-step explanation:
Type the correct answer in the box. In a relay race, the probability of the Galaxy team winning is 22%. In another unrelated relay race, the probability of the Komets team winning is 47%. If the possibility of a tie is not an option, the probability of the Komets losing their race and the Galaxy winning theirs is %. Reset Next
The probability of the Komets losing their race and the Galaxy winning theirs is
What is mean by Probability?
The term probability refers to the likelihood of an event occurring.
Given that;
The probability of the Galaxy team winning is 22%.
And, The probability of the Komets team winning is 47%.
Now,
Since, The probability of the Galaxy team winning is 22%.
And, The probability of the Komets team winning is 47%.
Hence, The probability of the Komets team losing = 100% - 47%
= 53%
= 0.53
Then, The probability of the Komets losing their race and the Galaxy winning theirs is = 0.53 × 0.22
= 0.1166
Thus, probability of the Komets losing their race and the Galaxy winning theirs is 0.1166.
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Answer:
11.66%
Explanation:
I put 12% as my answer, but I got it wrong. So I talked to my teacher and she said the CORRECT ANSWER WAS 11.66%!!
NO LINKS!! Find the missing length indicated. The triangle is similar.
Answer:
143
Step-by-step explanation:
35/55 = 91/x
7/11 = 91/x so 143
Answer:
DB = 143 units
Step-by-step explanation:
In similar triangles, corresponding sides are always in the same ratio.
If ΔDCB ~ ΔDRS then:
[tex]\implies \sf DC : DR = CB : RS = DB : DS[/tex]
From inspection of the given diagram:
DC = 91DR = 35DS = 55Therefore:
[tex]\implies \sf 91 : 35 =DB : 55[/tex]
[tex]\implies \sf \dfrac{91}{35} =\dfrac{DB}{55}[/tex]
[tex]\implies \sf 55 \cdot \dfrac{91}{35} =55 \cdot \dfrac{DB}{55}[/tex]
[tex]\implies \sf 143=DB[/tex]
If a= (-9 9), find |a|, giving your answer as a surd in its simplest form.
Answer:
The absolute value of a is equal to 3 * √(2), which is the simplest form of the surd.
Step-by-step explanation:
The absolute value of a number is the distance of the number from zero on the number line. To find the absolute value of a complex number, we take the square root of the sum of the squares of the real and imaginary parts.
In this case, the absolute value of a is given by:
|a| = √((-9)^2 + 9^2) = √(81 + 81) = √(162) = √(9 * 18) = 3 * √(2)
Therefore, the absolute value of a is equal to 3 * √(2), which is the simplest form of the surd.
PLEASE HELP ME!!! I WILL GIVE YOU BRAINLIST!!!! PLEASE
Answer:
b
Step-by-step explanation:
What is the correct answer ???????? only the answer
Answer: Open
Step-by-step explanation: the dot is only filled in when the inequallity is "greater than or equal to" or "less than or equal to"
if the first term in a geometric system is six and the constant multiple is 3÷4 list out the first five terms in the sequence.
The first five terms in the sequence are 6, 4.5, 3.375, 2.53125 and 1.8984375
How to list out the first five terms in the sequence?The first term of the sequence is given as
First term= 6
The constant multiple is given as
constant multiple = 3/4
These parameters can be represented as
a = 6
r = 3/4
The nth term of a geometric sequence is represented as
A(n) = a(r)ⁿ⁻¹
So, we have the following equation
A(n) = 6(3/4)ⁿ⁻¹
For the first term, we have
A(1) = 6
For other terms, we have
A(2) = 6(3/4) = 4.5
A(3) = 6(3/4)² = 3.375
A(4) = 6(3/4)³ = 2.53125
A(5) = 6(3/4)⁴ = 1.8984375
Hence, the other terms are 4.5, 3.375, 2.53125 and 1.8984375
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Liseta has $8 to buy blank CDs. If each CD costs $0.26, how many can she buy?
Answer:
she can buy 30
Step-by-step explanation:
8/0.26 = 30.7
round to 30 because you need a whole number.
sin 0 = 5/13 find tan 0 A 13/12 B 12/5 C 5/12 D 12/13
Answer: C.5/12
Step-by-step explanation:
Many of the strongest earthquakes in the world take place off the coast of Alaska in the Andreanof Islands or in Prince William Sound. In 1957, a 9.1 magnitude earthquake hit this area. What was the
intensity of that earthquake? (Round your answer to two decimal places.)
cm
Answer:
1,258,925,411.79cm
Step-by-step explanation:
earth quake is measured with the Richter Scale,
R (Magnitue) = log (I / I°)
where I° is the base intensity to the Richter Scale and will be taken as 1
9.1 = log I
10^9.1 = I
thus,
intensity I = 1,258,925,411.79 cm
Dividing power algebra two
By power algebra method,
a) [tex]\frac{16}{81}[/tex]
b) [tex]\frac{2xy}{3}[/tex]
c) [tex]\frac{16x^4}{y^8}[/tex]
d) [tex]\frac{3y^2}{x^3}[/tex]
What is dividing power property?According to the Quotient of Powers Property, you can maintain the base and subtract the exponents when dividing two exponents by the same base. Since you cannot divide by zero, this characteristic will always hold true as long as the base is not zero. For more information on this property, use the interactive below.
The Exponents Power Rule: am*n = (am)n. Multiply the exponent by the power to increase a number with an exponent to that power.
You divide them by the highest exponent in the numerator (the numerator) and the lowest exponent in the denominator (the bottom exponent).
a) [tex](\frac{2}{3})^4[/tex] = [tex]\frac{2*2*2*2}{3*3*3*3}[/tex] = [tex]\frac{16}{81}[/tex]
b) [tex]\frac{2x^2y}{3x}[/tex] = [tex]\frac{2*x*x*y}{3*x}[/tex] = [tex]\frac{2xy}{3}[/tex]
c) [tex](\frac{2x}{y^2})^4[/tex] = [tex]\frac{2x*2x*2x*2x}{y^2*y^2*y^2*y^2}[/tex] = [tex]\frac{16x^4}{y^8}[/tex]
d) [tex]\frac{3xy^4}{x^3}[/tex][tex].\frac{y}{xy^3}[/tex] = [tex]\frac{3x*y*y*y*y}{x*x*x} . \frac{y}{x*y*y*y}[/tex] = [tex]\frac{3y^2}{x^3}[/tex]
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x/4 -6 = -8 pls help i really dont understand this one
Answer:
x = -8
Step-by-step explanation:
Given equation,
→ (x/4) - 6 = -8
Now the value of x will be,
→ (x/4) - 6 = -8
→ x/4 = -8 + 6
→ x/4 = -2
→ x = -2 × 4
→ [ x = -8 ]
Hence, the value of x is -8.
A certain statistic will be used as an unbiased estimator of a parameter. Let J represent the sampling distribution of the estimator for samples of size 40, and let K represent the sampling distribution of the estimator for samples of size 100.
e. The expected values of J and K will be equal, and the variability of J will be greater than the variability of K.
The true statement about J and K is - The expected values of J and K will be equal, and the variability of J will be greater than the variability of K.
The correct answer is option (c)
In this question, we have been given that a certain statistic will be used as an unbiased estimator of a parameter.
The sample size of J = 40.
and the sample size of K = 100.
We need to find the true statement about J and K.
By central limit theorem, both J and K will have same means.
An expression for standard deviation is:
s = σ/√n
From the above expression standard deviation is inversely proportional to the sample size n. This means, as the sample size increases, the standard deviation decreases.
Thus, the correct statement is - The expected values of J and K will be equal, and the variability of J will be greater than the variability of K.
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The complete question is:
A certain statistic will be used as an unbiased estimator of a parameter. Let J represent the sampling distribution of the estimator for samples of size 40, and let K represent the sampling distribution of the estimator for samples of size 100.
Which of the following must be true about J and K ?
a. The expected values of J and K will be equal, and the variability of J will be less than the variability of K.
b. The expected values of J and K will be equal, and the variability of J will be equal to the variability of K.
c. The expected values of J and K will be equal, and the variability of J will be greater than the variability of K.
d. The expected value of J will be greater than the expected value of K, and the variability of R will be greater than the variability of K.
e. The expected value of J will be greater than the expected value of K, and the variability of R will be less than the variability of K.
A swordfish is 400 centimeters long. A swordfish is __ meters long.
Answer:
400
Step-by-step explanation:
1 centimeter = 0.01 meter
400 centimeters = 4 meters
If 15 out of 24 students enjoyed math
yesterday, what percentage of students
did not enjoy math yesterday?
Answer: 37.5
Step-by-step explanation: 9 students didn't fw math, divide 9 by the total (24) n u get 37.5%
Answer:
Below
Step-by-step explanation:
9 out of 24 did NOT
9/24 = .375 = 37.5 %
3(4.1x-3.9y)-5= (Simplify your answer. Use integers or decimals for any numbers in the expression.)
The value of the expression 3(4.1x - 3.9y) - 5 is 12.3x - 11.7y - 5.
How to illustrate the expression?Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both.
In this situation, it should be noted that the expression is illustrated as:
3(4.1x - 3.9y) - 5
Open the parentheses
12.3x - 11.7y - 5
Therefore, the value of the expression is 12.3x - 11.7y - 5.
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Find the slope of the line that goes through the given points.
(-5, -10) and (-6, -1)
Answer:
-9
Step-by-step explanation:
(y2-y1)/(x2-x1)
[tex]\frac{(-1--10)}{(-6--5)}[/tex]=-9
Answer:
slope m=-9
Step-by-step explanation:
m=−1−−10−6−−5
m=9−1
m = -9
Answer please thank you!
After performing division on the given expression the quotient is x + 3 and the remainder is -16.
What is an arithmetic operation?
The four basic mathematical operations are the addition, subtraction, multiplication, and division of two or even more integers. Among them is the examination of integers, particularly the order of actions, which is crucial for all other mathematical topics, including algebra, data organization, and geometry.
As per the given information in the question,
x + 3) x² - 7 ( x + 3
x² + 3x
= 3x -7
3x + 9
= -16 (Remainder)
Hence, the quotient obtained after division is x+3.
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Mrs. magil asks her students to draw a right triangle with one angle measuring 63 degrees. Which equation can be used to determine a, the measure of the third angle in their triangle?
Answer: a = 180 - 63 - 90
Step-by-step explanation:
180 degrees in a triangle
90 degrees in a right triangle
180 = 63 + 90 + a
move 63 and 90 to the other side
a = 180 - 63 - 90
-2 = y - 9 solve for y
this is ur answer
[tex]2y = - 9 \\ y = ( - 9) - 2 \\ y = - 11[/tex]