Answer: y = (1/3)*x - 7
Step-by-step explanation:
When we have a line:
y = a*x + b
A perpendicular line to this one needs to have a slope s equal to:
s = -(1/a)
Then any line written as:
y = -(1/a)*x + c
is perpendicular to the lines of the form "y = a*x + b"
Then if we have the line:
y = -3*x - 8
The family of perpendicular lines to this one is:
y = -(1/-3)*x + c
y = (1/3)*x + c
where c can be any real number.
Now we also want that this line passes through the point (9, -4)
Then we need to replace x by 9, and y by -4
-4 = (1/3)*9 + c
Now we can solve this for c.
-4 = 9/3 + c
-4 = 3 + c
-4 - 3 = c
-7 = c
Then the line that is perpendicular to the line y = -3x – 8 and that goes through (9, -4) is:
y = (1/3)*x - 7
Calculate the slope of the line that passes through (8,5) and (6,2)
To find the slope we need two points and the formula
\(m=\frac{y2-y1}{x2-x1}\)where (x2,y2) is a right point from (x1,y1) so x2>x1
now replacing
\(\begin{gathered} m=\frac{5-2}{8-6} \\ \\ m=\frac{3}{2} \end{gathered}\)the slope is 3/2
A recipe uses 3 eggs for every 8 cups of flour. What is the ratio of eggs to flour in the recipe
Answer:
3:8
Step-by-step explanation: :)
Answer:
3 eggs : 8 cups of flour
=3:8
Hey guy pls help me with dis due today pls help no links pls
I did number one
pls explain answer
mode is 4 and the median is also 4
mode is the number that appears the most which is 4 and median is the number that is in the middle when you line up all the numbers in order (0,2,2,3,3,4,4,4,4,5,5,5,6,6,10)
mrs. hansen asked eli to apply the distributive property to the expression, 2(7 3). which of the following should eli have not written?
A. 2(10)
B. 2(7) =2(3)
C. 2(3+7)
D. (7+3).2
Eli should not have written option D, (7+3).2, when applying the distributive property to the expression 2(7+3).
The distributive property states that when you multiply a number by a sum or difference inside parentheses, you need to multiply the number by each term inside the parentheses. In this case, Eli needs to multiply the number 2 by each term inside the parentheses (7 and 3). Let's analyze each option:
A. 2(10): Eli correctly applied the distributive property by multiplying 2 by 10, which is the result of adding 7 and 3.
B. 2(7) = 2(3): Eli correctly applied the distributive property by multiplying 2 by both 7 and 3 separately.
C. 2(3+7): Eli correctly applied the distributive property by multiplying 2 by the sum of 3 and 7.
D. (7+3).2: This expression does not apply the distributive property correctly. The parentheses indicate addition, not multiplication. Eli should have multiplied 2 by both 7 and 3, rather than adding them first.
Therefore, option D is the incorrect one, and Eli should not have written (7+3).2 when applying the distributive property to the given expression.
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This is my last question someone help and plz make sure it’s right will mark brainiest plz :)
Answer:
fort nite
Step-by-step explanation:
i dont know what brainiest means
Evaluate when a=3, b=-1, c=5, and d=-2.
c-7=
Answer:
=d
Step-by-step explanation:
c=5 , 5-7= -2.............
brainliest pls
Please help <3 The grade distribution of the many
students in a geometry class is as follows.
Grade
A B
C D F
Frequency 28 35 56 14 7
Find the probability that a student earns a
grade of A.
P(A) = [?]
Probability
Enter
Can someone help me with this question? If I can get an equation for it and an explanation of how to do it then I should be able to do the rest of them.
The problem wants me to:
"write the equation of the parabola in intercept form."
For a school fundraiser, Tory sold 28 bags of popcorn and 40 candy bars and made $282. Jake sold 17 bags of popcorn and 20 candy bars and made $160.50.
Write a system of equations which represents this situation.
A. 28p + 17p and 40c + 20c = 160.50
B. 28p + 20c = 282 and 17p + 40c = 160.50
C. 28p + 40c = 282 and 17 + 20c = 160.50
D. 28p + 40c + 17p + 20c = 282 + 160.50
Each rail road car in a train set is 6 inches in length. The rail road track is 5 feet long. How many railroad cars can fit on the track?
To calculate the number of railroad cars that can fit on the track, we first need to convert the length of the track into inches. Since there are 12 inches in a foot, 5 feet is equal to 60 inches. If there is any space between the cars, the number of cars that can fit on the track will be slightly less than 10.
It's important to note that this calculation assumes the railroad cars are placed end-to-end with no space in between.
Next, we divide the length of the track (60 inches) by the length of each railroad car (6 inches).
60 inches / 6 inches = 10 railroad cars. Therefore, the track can fit 10 railroad cars.
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Writing: Describe how you would use the point-slope form to write the
equation of a line that passes through the points (2, 3) and (-1,6) in
slope-intercept form.
PLEASE HELP !!
Answer:
Step-by-step explanation:
1. find the slope (m)
m=y2-y1/x2-x1
m=6-3/-1-2
m=3/-3
m=-1
2. y-y1=m(x-x1)
y-3=-1(x-2)
y-3=-1x+2
y=-1x+2+3
y=-1x+5
find the phase shift
y = -cos ( 1/2 x + pi/2 )
-pi is the phase shift of y = -cos ( 1/2 x + pi/2 )
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
The given function is y = -cos ( 1/2 x + pi/2 )
Standard form of the cosine function is y=acos(bx+c)+d
Phase shift is -c/b
b=1/2 and c is pi/2
Now phase shift=-(pi/2)/(1/2)
=-pi
Hence, -pi is the phase shift of y = -cos ( 1/2 x + pi/2 )
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Estimate Jupiter’s mass using a one-digit whole number times a power of 10. Be sure to include units.
The most appropriate choice for exponent will be given by-
Mass of jupiter = 1.898 \(\times\) \(10^{27}\) kg
What are exponent?
Exponent tells us how many times a number is multiplied by itself.
For example : In \(2^4 = 2 \times 2 \times 2 \times 2\)
Here, 2 is multiplied by itself 4 times.
If \(a^m = a\times a \times a\times....\times a\) (m times), a is the base and m is the index.
The laws of index are
\(a^m \times a^n = a^{m+n}\\\\\frac{a^m}{a^n} = a^{m - n}\\\\a^0=1\\\\(a^m)^n = a^{mn}\\\\(\frac{a}{b})^m =\frac{a^m}{b^m}\\\\a^{-m} = \frac{1}{a^m}\)
Here,
Mass of jupiter = 1.898 \(\times\) \(10^{27}\) kg
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Consider a continuous-time Markov chain with three states 1, 2, 3, 4, 5 and transition rates q12=1, q13 = 2, q21 = 0, q23 = 3, q31 = 0, q32 = 0. (1) Write the system of ODEs for the corresponding transition probabilities Pᵢⱼ (t) . (2) Suppose that the initial state is 1. What is the probability that after the first transition, the process X(t) enters state 2?
the probability of transitioning from state 1 to state 2 after the first transition is:
P(X(t) enters state 2 after the first transition | X(0) = 1) = 1 / 3
To write the system of ordinary differential equations (ODEs) for the transition probabilities Pᵢⱼ(t) of the given continuous-time Markov chain, we need to consider the rate at which the system transitions between different states.
Let Pᵢⱼ(t) represent the probability that the Markov chain is in state j at time t, given that it started in state i at time 0.
The ODEs for the transition probabilities can be written as follows:
dP₁₂(t)/dt = q₁₂ * P₁(t) - q₂₁ * P₂(t)
dP₁₃(t)/dt = q₁₃ * P₁(t) - q₃₁ * P₃(t)
dP₂₁(t)/dt = q₂₁ * P₂(t) - q₁₂ * P₁(t)
dP₂₃(t)/dt = q₂₃ * P₂(t) - q₃₂ * P₃(t)
dP₃₁(t)/dt = q₃₁ * P₃(t) - q₁₃ * P₁(t)
dP₃₂(t)/dt = q₃₂ * P₃(t) - q₂₃ * P₂(t)
where P₁(t), P₂(t), and P₃(t) represent the probabilities of being in states 1, 2, and 3 at time t, respectively.
Now, let's consider the second part of the question: Suppose that the initial state is 1. We want to find the probability that after the first transition, the process X(t) enters state 2.
To calculate this probability, we need to find the transition rate from state 1 to state 2 (q₁₂) and normalize it by the total rate of leaving state 1.
The total rate of leaving state 1 can be calculated as the sum of the rates to transition from state 1 to other states:
total_rate = q₁₂ + q₁₃
Therefore, the probability of transitioning from state 1 to state 2 after the first transition can be calculated as:
P(X(t) enters state 2 after the first transition | X(0) = 1) = q₁₂ / total_rate
In this case, the transition rate q₁₂ is 1, and the total rate q₁₂ + q₁₃ is 1 + 2 = 3.
Therefore, the probability of transitioning from state 1 to state 2 after the first transition is:
P(X(t) enters state 2 after the first transition | X(0) = 1) = 1 / 3
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13.
Find the volume of the trapezoidal prism below. Hint: The formula for the area of a
trapezoid is A 2 (b, I b)h.
6 cm
5 cm
12 cm
7.5 cm
А
450 cm
B
900 cm
С
270 cm
Answer:
A is the correct answer 450 cm
Step-by-step explanation:
area of base = 1/2 (7.5+ 5) × 6 = 37.5
volume = area × height
= 37.5 × 12
= 450cm³
please help me find out the answer in this picture :)
Answer:
The answer is "d" x= r-p / g
Step-by-step explanation:
First let's get rid of the "p" term on the left-side. After you've done that, you have to get rid of the g term. So you divide the x term by the g-term, you do this to both sides.
nine percent of americans have rh-negative o blood type. in a random sample of 200 americans, what is the probability that the sample proportion with rh-negative o blood types will be less than 12% (round off to second decimal place)?
The probability that the sample proportion with rh-negative o blood types will be less than 12% is 0.93.
According to the question,
91 pts nine percent of Americans have rh-negative o blood type.
In a random sample of 200 Americans, what is the probability that the sample proportion with rh-negative o blood types will be less than 12% = ?
by Using central limit theorem,
P(p cap < p) = P(Z<p cap-p/√p(1-p)/n)
so,
P(p cap < 0.12) = P(Z<0.12-0.09/√(0.09×0.91/200)
= P(Z<1.4825)
= 0.9309 (from Z table)
= 0.93 (Rounded to second decimal place)
so, The probability that the sample proportion with rh-negative o blood types will be less than 12% is 0.93.
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2(4x-1) = -8x-2 no solution or infinitely many solution
Answer:
One solution only.
Step-by-step explanation:
2 ( 4x - 1 ) = -8x - 2
8x - 2 = -8x - 2
0 = 0
One solution only.
I rly need help please
The length of the missing side in the right triangle is 6.5
How to find the missing length of the triangle?We can see that it is a right triangle, thus, we can use the Pythagorean's theorem.
It says that the sum of the squares of the legs is equal to the square of the hypotenuse.
So if x is the missing side, we can write:
x² + 3.6² = 7.4²
Solving that for x we will get.
x = √(7.4² - 3.6²) = 6.5
That is the length of the missing side.
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Function or not a function?
{(3,2), (1, -1), (2, -4), (3, -9), (4, -16)}
Answer:
not a function
Step-by-step explanation:
if x values repeat its not a function
Descartes says 15.7 is less than 15.245 because 15.27 has fewer digits after the decimal point than 15.245 . is he correct ? explain
The statement "15.7 is less than 15.245 because 15.27 has fewer digits after the decimal point than 15.245" is false
How to determine the true statement?The statement is given as
15.7 is less than 15.245 because 15.27 has fewer digits after the decimal point than 15.245
When comparing greater and lesser values, we do not make use of the number of digits in them
Instead, we compare the values
Though, 15.7 is less than 15.245 but the reason is that 15.27 has lesser value than 15.245
Hence, the statement "15.7 is less than 15.245 because 15.27 has fewer digits after the decimal point than 15.245" is false
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There are five hundred students at Rockland Middle School. If 43% of the students are female, what is the ratio of female students to male students?
We expressed the ratio of female students to male students as a fraction, simplified it, and obtained a final ratio of approximately 3:4.
The problem states that there are 500 students at Rockland Middle School. If 43% of the students are female, we can calculate the number of female students by multiplying the total number of students by the percentage of female students:
43% of 500 = 0.43 x 500 = 215
Similarly, the number of male students can be calculated by multiplying the total number of students by the percentage of male students:
57% of 500 = 0.57 x 500 = 285
The ratio of female students to male students can then be expressed as the fraction of female students divided by the fraction of male students:
215/285 = 0.754:1
This ratio can also be simplified by dividing both numbers by their greatest common factor (GCF), which in this case is 5:
215/5 = 43
285/5 = 57
So the simplified ratio of female students to male students is 43:57 or approximately 3:4.
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One less than the quotient of a number and negative 5
simplify square root of 3y^2 if y<0
Note that the resultant expression after simplifying simplify square root of 3y² if y<0 is: y√3
What is the rationale for the above result?Note that we need to take a factor out of the square root: √(3y²) , where y<0.
The given expression is √(3y²)
Recall that to take out a factor out of the square root that factor must have a degree in multiple of 2 such as x², x⁴, (x-2)⁴, thus,
√(3y²) = √3y²
⇒ √3 √y²
⇒ √3 (y²)\(^\frac{1}{2}\)
⇒ √3 (y)\(^\frac{2}{2}\)
= y √3
Thus, having simplified the expression √(3y²), the result is: y √3.
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The table below shows the incomplete values as y varies directly as
x. Calculate the missing values.
y =10 20_
x =5_ 2
Answer:
y=30
x=3
Step-by-step explanation:
~may it help you~
urn i contains two red chips and four white chips: urn ii, three red and one white. a chip is drawn at random from urn i and transferred to urn ii. then a chip is drawn from urn ii. what is the probability that the chip drawn from urn ii is red?
The probability that the chip drawn from urn II is red is 4/15. Let's call the event that the chip drawn from urn I and transferred to urn II is red "R1", and the event that the chip drawn from urn II is red "R2".
The probability of event R1 is 2/6 = 1/3.
Given that event R1 has occurred, the number of red chips in urn II becomes 4, and the number of total chips becomes 4+1=5. The probability of event R2 is 4/5 = 4/5.
The probability of both events occurring is (1/3) * (4/5) = 4/15.
So, the probability that the chip drawn from urn II is red is 4/15.
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someone help me for 100 points and brainliest pls
The decimal number with repeating digits can be written as:
0.344... = 31/90
How to write the number as a fraction?Here we have the number:
0.3444....
Where the 4 keeps repeating.
First, we need to multiply this by 10, so we get:
10*0.344... = 3.444...
Now if we subtract the original number we get:
10*0.344... - 0.344... = 3.444... - 0.344...
9*(0.344...) = 3.1
Now, isolating the original number:
0.344... = 3.1/9
Finally, we multiply and divide the fraction by 10 so we get two whole numbers:
0.344... = (10/10)*(3.1/9) = 31/90
0.344... = 31/90
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You have seven bags of gold coins. Each bag has the same number of gold coins. One day, you find a bag of 53 coins. You decide to redistribute the number of coins you have so that all eight bags you hold have the same number of coins. You successfully manage to redistribute all the coins, and you also note that you have more than 200 coins. What is the smallest number of coins you could have had before finding the bag of 53 coins
The smallest number of coins you could have had before finding the bag of 53 coins is 371. which is more than 200.
There are seven bags, so there are 7x coins in total:
7x = T.
Since the number of coins in each bag must be an integer, (T + 53) must be a multiple of 8. We know that T = 7x, so we can write this as follows:
(7x + 53) ≡ 0
(mod 8)This means that 7x ≡ 3 (mod 8).
The solutions to this congruence are
x ≡ 3, 11 (mod 8).
Since x is a positive integer, we take
x = 11
(the other possibility, x = 3,
leads to a smaller value for T).
Therefore, T = 7x = 77, and the total number of coins after the bag of 53 coins is found is
T + 53 = 130.
After redistributing the coins into eight equal bags, each bag contains 16 coins.
Therefore, the number of coins you had initially was
7x = 77,
so the smallest number of coins you could have had before finding the bag of 53 coins is
77 - 53 = 24.
After redistributing the coins, you had
8 × 16 = 128 coins left,
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please!! help! i really need it (no need for decimals while doing the problem
Divide: 91,035 ÷ 51 Enter the answer in the box.