Answer:
the Point are: ( 63, 2720 )
Slope is : - 70
linear equation in point-slope : y = 7130 - 70x
Step-by-step explanation:
given the data in the question;
let x represent number of months he is taking money from his account
so
y = 70x + 2720
so total amount in his account will be;
⇒ 70×63 + 2720
= $7,130
for each month, ( say x in number) he takes out $70,
let y be amount in account at (x) month, so;
y = 7130 - 70x
the Point are: ( 63, 2720 )
Slope is : - 70
linear equation in point-slope : y = 7130 - 70x
Express the answers in simplest form. A list contains the names of six anthropology students, two sociology students, and four psychology professor's new study, find the probability that the chosen student (a) A psychology student (c) A psychology student or an anthropology (d) Not a sociology student.
a) P(psychology student) = 1/3. b) P(psychology or anthropology student) = 5/6. c) P(not sociology student)= 5/6
How to find the probability that the chosen student(a) The probability of choosing a psychology student is the number of psychology students divided by the total number of students:
P(psychology student) = 4/(6+2+4) = 4/12 = 1/3
(b) The probability of choosing a psychology student or an anthropology student is the sum of the number of psychology and anthropology students divided by the total number of students:
P(psychology or anthropology student) = (4+6)/(6+2+4) = 10/12 = 5/6
(c) The probability of not choosing a sociology student is the number of non-sociology students divided by the total number of students:
P(not sociology student) = (6+4)/(6+2+4) = 10/12 = 5/6
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In rural Ireland, a century ago, the students had to form a line. The student at the front of the line would be asked to spell a word. If he spelled it correctly, he was allowed to sit down. If not, he received a whack on the hand with a switch and was sent to the end of the line. Suppose the student could spell correctly 60% of the words in the lesson. What is the probability that the student would be able to sit down before receiving four whacks in the hand?
Answer:
The answer is "0.9102"
Step-by-step explanation:
P(student spell correct) = 0.6
P(student spell incorrect)=1-0.6=0.4
X=the pupil will be allowed to sit down after receiving three slaps on the hand Thus, X would assume Value
X=0 (student sit sans getting whacks)
X=1 (student sit down without receiving 1 whack) (student sit down without receiving 1 whack)
X=2 (student take a seat before receiving 2 whacks)
X=3 (student sit down after receiving 3 punches)
\(\to P(X)=0.6 \times 0.4^0 +0.6 \times 0.4 + 0.6 \times 0.4 ^2 + 0.6 \times 0.3^3\)
\(=0.6 \times 1+0.24 + 0.6 \times 0.09 + 0.6 \times 0.027\\\\=0.6 +0.24 + 0.054 + 0.0162\\\\=0.9102\\\\\)
Find an equation of the line that passes through the point
(x, y) = (3, 1) and is
perpendicular to the line
2x + 3y = 12
Considering the definition of perpendicular line, the equation of the perpendicular line that passes through the point (x, y) = (3, 1) and is perpendicular to the line 2x + 3y = 12 is y= 3/2x -7/2.
Linear equationA linear equation o line can be expressed in the form y = mx + b
where
x and y are coordinates of a point.m is the slope.b is the ordinate to the origin and represents the coordinate of the point where the line crosses the y axis.Perpendicular linePerpendicular lines are lines that intersect at right angles or 90° angles. If you multiply the slopes of two perpendicular lines, you get –1.
Equation of perpendicular line in this caseIn this case, the line is 2x+3y= 12. Expressed in the form y = mx + b, you get:
3y= 12 - 2x
y= (-2x +12)÷ 3
y= -2/3x +4
Since multiplying the slopes of two perpendicular lines, you get -1, and the line has a slope of -2/3, you get:
-2/3× slope perpendicular line= -1
slope perpendicular line= (-1)÷ (-2/3)
slope perpendicular line= 3/2
The line passes through the point (3, 1). Replacing in the expression for parallel line:
1= 3/2× (3) + b
1= 9/2 + b
1- 9/2 = b
-7/2= b
Finally, the equation of of perpendicular line is y= 3/2x -7/2.
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Two horses start a race at the same time. Horse A gallops at a steady rate of 32 feet per second and Horse B gallops at a steady rate of 28 feet per second. After 5 seconds, how much farther will Horse A have traveled? Explain your reasoning. *
Answer:
Horse A will have traveled 20 feet farther
Step-by-step explanation:
Horse A has traveled 160 feet in 5 seconds, and Horse B has traveled 140 feet in 5 seconds, and 160-140=20
how would i solve this problem ?
Suppose you are designing and conducting a poll to see which of the Congressional candidates are popular in your area. Use the terminology and concepts that we are learning in Lesson 1 - population, sample, sampling methods, representative sample, and presentation of data....
1. Discuss the following in your own words :
the population that you are trying to predict,
where and how are you selecting your sample,
what sampling method would you use,
how would you assure that you are selecting a representative sample, and
show an example of how you would present your data.
The population we're trying to predict is the population that is going to be Voters in our area, the where should probably be well as above our area, and the how now, generally speaking, we want to do a simple, random, or a random sample of some sort, random sample.
For instance, what you could do would be something like choose: random addresses in the area and send a survey, but sending a survey could introduce self-selection bias. So it would be ideal to visit in person basically and ask a few questions making sure the representative sample or how to ensure that we're getting a representative sample would be to, for instance, filter the random results and make sure that we have an even distance.
Ensure that there's an equal number within each quadrant of the town, basically split up the town. Split towns into regions of populations or population densities and make sure we get the same proportion from each region. However, we end up splitting the town into different regions. We show the proportion or show who is the most popular candidate in each 1 of the regions, so it could be something like this. That was supposed to be an alternative to a bar graph. The number of results for each different candidate depends on whether or not there's a sort of well-defined districts or areas in the town, but most sorts of relatively large cities have things like that. So the idea would be to represent not just the location, but also the information that you gain separately.
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Split up the town so that there are an equal amount in each of its four quadrants. Make sure we receive the same proportion from each region by dividing towns into population or population density regions. But ultimately, we divide the town into many parts. It might look something like this since we display the percentage or the candidate who is most supported in each location. That was meant to be a bar graph substitute. Whether or not a town has clearly defined districts or areas affects the amount of results for each candidate, although this is true of most types of moderately large cities.
one card is drawn from a pack of 52cards each of the 52 cards being equally likely to be drawn. what is the probability that the card drawn is a king?
The probability of drawing a king from a standard deck of 52 cards is 1/13.
In a standard deck of 52 playing cards, there are four kings: the king of hearts, the king of diamonds, the king of clubs, and the king of spades.
To find the probability of drawing a king, we need to determine the ratio of favorable outcomes (drawing a king) to the total number of possible outcomes (drawing any card from the deck).
The total number of possible outcomes is 52 because there are 52 cards in the deck.
The favorable outcomes, in this case, are the four kings.
Therefore, the probability of drawing a king is given by:
Probability = (Number of favorable outcomes) / (Number of possible outcomes)
= 4 / 52
= 1 / 13
Thus, the probability of drawing a king from a standard deck of 52 cards is 1/13.
This means that out of every 13 cards drawn, on average, one of them will be a king.
It is important to note that the probability of drawing a king remains the same regardless of any previous cards that have been drawn or any other factors.
Each draw is independent, and the probability of drawing a king is constant.
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Formula to find perimeter of rectangle
Hey there!
The formula to find the perimeter of a rectangle is "P=2(l+w)".
Hope this helps!
Have a great day! :)
Answer:
formula to find the perimeter of rectangle is
2(l+b)hope it helps
stay safe healthy and happy.
Determine the vertical asymptote and horizontal asymptote
The value of vertical asymptotes is, x = 9
And, The value of Horizontal asymptotes is,
y = - 4
We have to given that;
Expression is,
⇒ j (x) = 1/(x - 9) - 4
Now, We can simplify as,
⇒ j (x) = 1/(x - 9) - 4
⇒ j (x) = (1 - 4(x - 9)] / (x - 9)
⇒ j (x) = [1 - 4x + 36] / (x - 9)
⇒ j (x) = (- 4x + 37) / (x - 9)
Hence, For vertical asymptotes make denominator zero.
As, x - 9 = 0
x = 9
And, Here degree of numerator and denominator both are one.
Hence, Horizontal asymptotes is,
y = - 4 / 1
y = - 4
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Rihanna colored ones Brianna color 1/6 of her picture and somebody colored 1/4 of his picture who played more
Answer: The one that colored 1/4.
Step-by-step explanation: 1/4 is greater than 1/6.
The sum of two times a number and 5 is greater or equal to 9
Answer:
greater than 9 is the answer
Step-by-step explanation:
2x+5=11
Find the value of x such that the line containing (1,2) and (5,3) is perpendicular to the line containing (x,4) and (3,0)
The value of x that makes the line containing (1,2) and (5,3) perpendicular to the line containing (x,4) and (3,0) is x = 2.
To determine the value of x such that the line containing (1,2) and (5,3) is perpendicular to the line containing (x,4) and (3,0), we need to find the slope of both lines and apply the concept of perpendicular lines.
The slope of a line can be found using the formula:
slope = (change in y) / (change in x)
For the line containing (1,2) and (5,3), the slope is:
slope1 = (3 - 2) / (5 - 1) = 1 / 4
To find the slope of the line containing (x,4) and (3,0), we use the same formula:
slope2 = (0 - 4) / (3 - x) = -4 / (3 - x)
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, if the slope of one line is m, then the slope of a line perpendicular to it is -1/m.
So, we can set up the equation:
-1 / (1/4) = -4 / (3 - x)
Simplifying this equation:
-4 = -4 / (3 - x)
To remove the fraction, we can multiply both sides by (3 - x):
-4(3 - x) = -4
Expanding and simplifying:
-12 + 4x = -4
Adding 12 to both sides:
4x = 8
Dividing both sides by 4:
x = 2
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Write the system of inequality for the graph
Answer:
Step-by-step explanation:
18 and 1/20 as a decimal
What do you call segments, rays, or lines that are added to a given diagram?
Answer:
auxiliary lines
Step-by-step explanation:
solve this sum plsss urgent
1. 1 and -1 are two such rational numbers whose multiplicative inverse is same as they are.
2. absolute value is resembled using the formula : |x|
Here,
\(\hookrightarrow \sf |\dfrac{-3}{11} |\)
\(\hookrightarrow \sf \dfrac{3}{11}\)
final answer: 3/11
3.
\(\hookrightarrow \sf \dfrac{1}{2} \div \dfrac{3}{5}\)
\(\hookrightarrow \sf \dfrac{1}{2} * \dfrac{5}{3}\)
\(\hookrightarrow \sf \dfrac{5}{6}\)
4.
Associative property can only be used with addition and multiplication
If one dose of elixir is 6 mL, how many doses are there in 500 mL?
Answer:
83 There is an elixir
total quantity of elixir = 500 mL
quantity of elixir use in one dose = 6 mL
number of dose in 500 mL = 500/6
83.333
What is 1,207.43% times 83.53$
Answer:
1 008.56628 US$ kkkkkkkkkk
Answer:
$43352.9053
Step-by-step explanation:
Not sure if this is what you wanted to do, but 1,207.43% of 83.53 is 43352.9053, So there you go.
Find all missing angles 72* 57*
In the given triangles m∠1 = 51°, m∠2 = 18°, m∠3 = 123° and ∠4 = 39°
What is a triangle?A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.
We know the sum of all the interior angles of a triangle is 180°.
∴ ∠1 + 72° + 57° = 180°.
∠1 + 129° = 180°.
∠1 = 180° - 129°.
∠1 = 51°.
Now, ∠2 + 72° = 90°.
∠2 = 90° - 72°.
∠2 = 18°.
Now, ∠1 + 90° + ∠4 = 180°.
51° + 90° + ∠4 = 180°.
∠4 = 39°.
Also, ∠2 + ∠3 + ∠4 = 180°.
18° + ∠3 + 39° = 180°.
∠3 = 180° - 57°.
∠3 = 123°.
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There are 3 types of PercentProblems.
a) Number compared to the Base is unknown: x/100 = ?/b
b) Base Number is unknown: a/?= x/100
c) Percent is unknown: a/b = ?/100
Solve the following percent problems using the appropriate percent equation. Describe
the steps used to calculate each answer.
1) What distance is 24% of 710 miles?
2) 62 hours is what percent of 3 days?
3) 16% of what number is 8?
Answer:A. x= .100
Step-by-step explanation:because of the distance in miles
HURRY Drag each division expression to the correct location on the table.
Solve each division problem, and classify it based on its quotient.
Answer: (In order)
25/4 / 6 1/4 = 1
3 1/7 / 2/7 = 11
5/4 / 1/4 = 5
11 1/4 / 9/4 = 5
8 1/4 / 3/4 = 11
3 1/3 / 10/3 = 1
Step-by-step explanation:
Question 4
Which term in the sequence given by n th term formula 7n - 50 has a value of 41?
th term
Answer:
13th term
Step-by-step explanation:
41 = 7n - 50
41 + 50 = 7n
91 = 7n
7n = 91
n = 91/7
n = 13
13th term has value 41
Answer:
n = 13
Step-by-step explanation:
7n - 50 = 41
Add 50 to both sides
7n = 41 + 50
7n = 91
Divide both sides by 7
n = 91/7
n = 13
Plot the points (-3,4) and (4,4) on the coordinate plane below.What is the distance between these two points?
To find the distance between two points A and B you can use the formula
\(\begin{gathered} d=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2} \\ \text{ Where A and B have the coordinates} \\ A(x_1,y_1) \\ B(x_2,y_2) \end{gathered}\)So, in this case, you have
\(\begin{gathered} A(-3,4) \\ B(4,4) \end{gathered}\)\(\begin{gathered} d=\sqrt[]{(4_{}-(-3))^2+(4-4)^2} \\ d=\sqrt[]{(4_{}+3)^2+(0)^2} \\ d=\sqrt[]{(7)^2} \\ d=7 \end{gathered}\)Therefore, the distance between these points is 7 units.
Graphically,
Please help i would really appricate it.
A) (5,-4)
(2,0)
(7,1)
N) (5,-4)
(2,0)
(7,1)
T) (5,-4)
(2,0)
(7,1)
A(2,0) N(7,1) T(5, -4)
<3
in point slope form: passes through (1, -3), slope = -1?
Explanation
Step 1
Let
P1(1,-3)
slope=-1
Step 2
use the formula
\(y-y_1=m(x-x_1)\)replacing
\(\begin{gathered} y-y_1=m(x-x_1) \\ y-(-3)=-1(x-1) \\ y+3=-x+1 \\ \text{subtract 3 in both sides} \\ y+3-3=-x+1-3 \\ y=-x-2 \end{gathered}\)I hope this helps you
The sum of the measures of the angles of a triangle is 180. The sum of the measures of the second and third angle is two times the measure of the first angle. The third angle is 14 more than the second. Let X,Y AND Z
represent the measure of the first second and third angles
Answer:
X= 180 Y= 360 Z= 374
Step-by-step explanation:
180*2=360
360+14=374
Draw the image of AABC under the translation (x, y) + (x+2, y +2).HELP!!!!
When translating a point we need to change its coordinates, in this case the problem wants us to add "2" to each coordinate, so the new position of the points will be the previous ones added by 2. Let's first calculate the new coordinates before drawing.
\(\begin{gathered} A\text{ = (-2,2) }\rightarrow\text{ A' = (-2 + 2, 2 + 2) = (0, 4)} \\ B\text{ = (-2, -5) }\rightarrow\text{ B' = (-2 + 2, -5 + 2) = (0, -3)} \\ C\text{ = (-6,4) }\rightarrow\text{ C' = (-6 + 2, 4 + 2) = (-4, 6)} \end{gathered}\)With the new coordinates in mind we can draw the new picture.
how do i work out 320.041 - 47.96
To subtract 47.96 from 320.041, you can align the decimal points and then subtract each digit from right to left.
First, write the numbers with the decimal points aligned:
320.041
- 47.960
Next, subtract the digits in the ones place, which is 1 minus 0, resulting in 1. Then, subtract the digits in the tenths place, which is 4 minus 6. Since 4 is less than 6, you need to borrow 1 from the digit to the left, making the 2 into a 1 and adding 10 to the 4, giving you 14. So, 14 minus 6 equals 8.
Continue subtracting each digit in the same way:
320.041
- 47.960
= 272.081
Therefore, 320.041 minus 47.96 is equal to 272.081.
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2. Evaluate (5+5√3i)^7 using DeMoivre’s theorem.
Write your answer in rectangular form.
Using DeMoivre’s theorem, the answer in regular form would be (5 + 5√3i)⁷ = -5000000 + 8660254.03i
How do we Evaluate (5+5√3i)⁷ using DeMoivre’s theorem?The De Moivre's Theorem is used to simplify the computation of powers and roots of complex numbers and is used in together with polar form.
Convert the complex number to polar form. The polar form of a complex number is z = r(cos θ + isin θ),
r = |z| magnitude of z
it becomes
r = √((5)² + (5√3)²) = 10
θ = arg(z) is the argument of z.
θ = atan2(b, a) = atan2(5√3, 5) = π/3
(5 + 5√3i) = 10 × (cos π/3 + i sin π/3)
De Moivre's theorem to raise the complex number to the 7th power
(5 + 5√3i)⁷
= 10⁷× (cos 7π/3 + i sin 7π/3)
= 10⁷ × (cos 2π/3 + i sin 2π/3)
Convert this back to rectangular form:
Real part = r cos θ = 10⁷× cos (2π/3) = -5000000
Imaginary part = r sin θ = 10⁷ × sin (2π/3) = 5000000√3 = 8660254.03i
∴ (5 + 5√3i)⁷ = -5000000 + 8660254.03i
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Answer:10^7 (1/2 - √3/2 i)
Step-by-step explanation:
To use DeMoivre's theorem, we first need to write the number in polar form. Let's find the magnitude and argument of the number:
Magnitude:
|5 + 5√(3i)| = √(5^2 + (5√3)^2) = √(25 + 75) = √100 = 10
Argument:
arg(5 + 5√(3i)) = tan^(-1)(√3) = π/3
So the number can be written in polar form as:
5 + 5√(3i) = 10(cos(π/3) + i sin(π/3))
Now we can use DeMoivre's theorem:
(5 + 5√(3i))^7 = 10^7 (cos(7π/3) + i sin(7π/3))
To simplify, we need to find the cosine and sine of 7π/3:
cos(7π/3) = cos(π/3) = 1/2
sin(7π/3) = -sin(π/3) = -√3/2
Explanation:
So the final answer in rectangular form is:
10^7 (1/2 - √3/2 i)
this is a stringing arguments together
1. If Martin shot the sheriff, then he shot first.
2. If Martin didn't use his best pistol, he didn't shoot first.
3. So if Martin didn't use his best pistol, he didn't shoot the sheriff.
This is a valid example of stringing arguments together using conditional statements.
How to analyze the statementThe first statement establishes a conditional relationship between Martin shooting the sheriff and Martin shooting first.
The second statement also establishes a conditional relationship, but this time between Martin using his best pistol and Martin shooting first.
By combining the two conditional statements, we can conclude that if Martin didn't use his best pistol, then he didn't shoot first.
This follows from the fact that not using his best pistol would mean Martin didn't shoot first (according to statement 2), and if he didn't shoot first, then he couldn't have shot the sheriff (according to statement 1).
Therefore, the conclusion of the argument, which is that if Martin didn't use his best pistol, then he didn't shoot the sheriff, follows logically from the two conditional statements.
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