Answer:
2x + 5y = 36 in standard form
Step-by-step explanation:
m = \(\frac{y_{2} -y_{1} }{x_{2} -x_{1} }\)
y - \(y_{1}\) = m( x - \(x_{1}\) )
~~~~~
(3, 6)
(8, 4)
m = \(-\frac{2}{5}\)
y - 6 = \(-\frac{2}{5}\) ( x - 3 )
y = \(-\frac{2}{5}\) x + \(\frac{36}{5}\) in slope-intercept form
2x + 5y = 36 in standard form
Answer:
D.
Step-by-step explanation:
right on edge 2022
For the angle 7π/4, draw and upload a representation of the angle on the unit circle in the coordinate plane. Place the angle in the correct quadrant. Label the reference angle and sides of the reference triangle, and identify the coordinates of the terminal point. Then, specify the exact values of the secant, cosecant and cotangent of the angle
Answer:
2eXz2
Step-by-step explanation:
3(x+4)=18 please
help i have 10 min and show your work
Answer:
x = 2
Step-by-step explanation:
3(x+4) = 18
distribute 3 into parenthesis
3x +12 = 18
subtract 12
3x = 6
divide by 3 to get x by itself
x = 2
Rob and his two friends were digging holes to plant some new trees. The holes need to be at least 3 feet deep. So far robs hole is 14/5, sams is 2.6 feet and toms is 2 1/8 feet. Who is closest to being finished
Rewrite all the numbers as decimals:
14/5 = 2.8
2.6 is already a decimal
2 1/8 = 2.125
2.8 is the largest number so rob is closest to being finished.
2.8 is the largest number then rob is closest to being finished.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that the holes need to be at least 3 feet deep. So far robs hole is 14/5, sams are 2.6 feet and toms is 2 1/8 feet.
Rewrite all the numbers as decimals:-
14/5 = 2.8
2.6 is already a decimal:-
2 1/8 = 2.125
Therefore, 2.8 is the largest number then rob is closest to being finished.
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The length of a rectangle is three times the sum of the width and two. If the the perimeter of the rectangle is 52 cm, what is the length of the rectangle?
Answer: 5
Step-by-step explanation:
If the length is equal to x, the width is 3(x+2). To make it easier, we simplify 3(x+2) to 3x+6.
Perimeter is 2(l+w).
Substitute 2(l+w) with our values of length and width. You get:
2(x+(3x+6))=52
Then you solve the equation:
2(x+(3x+6))=52
2(4x+6)=52
8x+12=52
8x=40
x=5
The length is 5.
you are using a within-subject design with 25 conditions. To obtain 20 measurements within each condition, how many participants will the researcher need to use
The researcher will need 25 participants to obtain 20 measurements within each of the 25 conditions in this within-subject design.
To determine the number of participants needed for a within-subject design with 25 conditions and 20 measurements within each condition, we need to consider the concept of counterbalancing. Counterbalancing involves systematically varying the order of conditions across participants to account for potential order effects.
In this case, each participant will need to complete all 25 conditions, with 20 measurements within each condition. Therefore, we can calculate the total number of measurements per participant:
Total measurements per participant = Number of conditions × Number of measurements per condition
Total measurements per participant = 25 × 20
Total measurements per participant = 500
To determine the number of participants needed, we divide the total number of measurements by the number of measurements per participant:
Number of participants = Total measurements / Measurements per participant
Number of participants = 500 / 20
Number of participants = 25
Therefore, the researcher will need 25 participants to obtain 20 measurements within each of the 25 conditions in this within-subject design.
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Nolan is driving to a concert and needs to pay for parking. There is an automatic fee of $8 just to enter the parking lot and when he leaves the lot he will have to pay an additional $3 for every hour he had his car in the lot. How much total money would Nolan have to pay for parking if he left his car in the lot for 6 hours? How much would Nolan have to pay if he left his car in the lot for t hours?
Answer:
i. $26
ii. $(8 + 3t)
Step-by-step explanation:
Given that: automatic fee is $8, and fee per hour is $3. Then;
i. If he left his car in the lot for 6 hours, amount to be paid can be calculated as thus;
since fee per hour is $3, then for 6 hours; the fee = 6 x $3
= $18
Total amount to be paid after 6 hours = automatic fee + $18
= $8 + $18
= $26
For parking his car for 6 hours, he would pay $26
ii. Amount paid for t hours = automatic fee + $ 3 x t
= $(8 + 3t)
2-step word problems
Our school library started the day with 284 books. During the day, 28 books were returned, and some
others were checked out. At the end of the day, the school library had 293 books.
How many books were checked out today?
books
Answer:
19 books were checked out.
Step-by-step explanation:
284 + 28 = 312
312 - 293 = 19
solve the following using BEDMAS
5X4 -(3+1)2÷2
the value of the expression is 12.
To solve the following using BEDMAS 5X4 - (3 + 1)2 ÷ 2:BEDMAS is an acronym that represents the order of operations for arithmetic operations in the correct order, that is, "Brackets", "Exponents", "Division and Multiplication", and "Addition and Subtraction."The full form of BEDMAS is- B stands for Brackets.E stands for Exponents.D stands for Division.M stands for Multiplication.A stands for Addition.S stands for Subtraction.
The given expression is;5X4 - (3 + 1)2 ÷ 2When we solve this expression using the BEDMAS rule of the order of operations, we get;= 5 x 4 - (3 + 1) x 2 ÷ 2[Since brackets comes first, then multiplication and division, followed by addition and subtraction.]= 20 - 4 x 2 ÷ 2[Perform multiplication: 3 + 1 = 4 and 4 x 2 = 8]= 20 - 8[Perform Division: 8 ÷ 2 = 4]= 12Therefore, the value of the expression is 12.The solution of the given expression using the BEDMAS rule of the order of operations is explained. The BEDMAS rule defines the correct order in which arithmetic operations should be performed.
It consists of four fundamental operations. They are brackets, exponents, multiplication and division, and addition and subtraction. The expression, 5X4 - (3 + 1)2 ÷ 2, can be solved using the BEDMAS rule of operations. First, we will simplify the brackets, followed by division and multiplication, then addition and subtraction. We will get the following expression 5 x 4 - (3 + 1) x 2 ÷ 2. We will then perform multiplication by finding the product of (3 + 1) and 2, which equals 8. Finally, we will perform division by dividing 8 by 2, which equals 4. After we have completed these steps, we will subtract 8 from 20 to get the final answer of 12.
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5(x-2)+4(3+x)=20 what is x
Answer:
x = 2
Step-by-step explanation:
diabetes incidence rates in the united states have skyrocketed in kids and teens over the last 15 years. type i or insulin dependent diabetes now has an incidence rate of 21.7 cases per 100,000 while the incidence rate for type ii (adult-onset diabetes), which is associated with obesity, is now 12.5 per 100,000. in order to use available tables, let us assume that the incidence rate for type ii diabetes is 12 per 100,000. a. can the distribuon of the number of cases of type ii diabetes in the united states be approximated by a poisson distribuon? if so, what is the mean? b. what is the probability that the number of cases of type ii in the united states is less than or equal to 10 per 100,000? c. what is the probability that the number of cases of type ii in the united states is greater than 10 but less than 15 per 100,000? d. would you expect to observe 19 or more cases of type ii diabetes per 100,000 in the united states? why or why not?
a. Yes, the distribution of the number of cases of type II diabetes in the United States can be approximated by a Poisson distribution since it is a rare event and the number of cases is independent of each other.
b. The probability is calculated as P(X ≤ 10) = e^(-12) * 12^10 / 10!, which is approximately 0.112.
c. we can subtract the probability of X ≤ 10 from the probability of X ≤ 15. The probability is calculated as P(10 < X < 15) = P(X ≤ 15) - P(X ≤ 10) = e^(-12) * (12^11 / 11! + 12^12 / 12! + 12^13 / 13! + 12^14 / 14!) ≈ 0.215.
d. The probability of observing 19 or more cases can be calculated using the Poisson distribution formula, P(X ≥ 19) = 1 - P(X ≤ 18) = 1 - e^(-12) * (12^0 / 0! + 12^1 / 1! + ... + 12^18 / 18!) ≈ 0.0002, which is a very small probability.
a. The distribution of the number of cases of type II diabetes in the United States can be approximated by a Poisson distribution if the cases are rare, random, and independent events. Given the incidence rate of 12 per 100,000, it can be considered a rare event, and if we assume the cases are independent and random, we can approximate the distribution using a Poisson distribution. The mean (λ) is equal to the incidence rate, which is 12 cases per 100,000.
b. To find the probability that the number of cases of type II diabetes is less than or equal to 10 per 100,000, we need to calculate the cumulative probability for the Poisson distribution with λ = 12 and k = 10. This can be found using the formula:
P(X ≤ 10) = Σ [e^(-λ) * (λ^k) / k!] for k = 0 to 10
c. To find the probability that the number of cases of type II diabetes is greater than 10 but less than 15 per 100,000, we need to calculate the probability for the Poisson distribution with λ = 12 and k = 11, 12, 13, and 14. This can be found using the formula:
P(10 < X < 15) = Σ [e^(-λ) * (λ^k) / k!] for k = 11 to 14
d. To determine if we would expect to observe 19 or more cases of type II diabetes per 100,000 in the United States, we can find the probability of observing 19 or more cases using the Poisson distribution with λ = 12. This can be found using the formula:
P(X ≥ 19) = 1 - P(X ≤ 18) = 1 - Σ [e^(-λ) * (λ^k) / k!] for k = 0 to 18
If the probability is low (typically less than 0.05), then it would be unlikely to observe 19 or more cases of type II diabetes per 100,000 in the United States.
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Corner of a rectangular piece of paper of width 8 inches is folded over so that it coincides with point on the opposite side. If inches, find the length in inches of fold .
The length of the fold is 10 inches. the square of the hypotenuse (the length of the fold) is equal to the sum of the squares of the other two sides.
To find the length of the fold, we can use the Pythagorean Theorem. Let's assume that the length of the fold is x inches. Since the corner of the paper is folded over, it creates a right triangle with the width of the paper (8 inches) as one side and the length of the fold (x inches) as another side.
According to the Pythagorean Theorem, the square of the hypotenuse (the length of the fold) is equal to the sum of the squares of the other two sides. In this case, we have:
x^2 = 8^2 + 6^2
Simplifying the equation:
x^2 = 64 + 36
x^2 = 100
Taking the square root of both sides:
x = √100
x = 10
Therefore, the length of the fold is 10 inches.
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The length of the fold of the rectangular paper, determined using the Pythagorean theorem, is approximately 11.31 inches.
Explanation:The question requires us to find the length of the fold when a corner of a rectangular piece of paper of width 8 inches is folded over to coincide with a point on the opposite side. From the given information, we know the width of the paper is 8 inches. The paper is folded such that a corner touches the mid-point of the opposite side, forming a right-angled triangle. In this triangle, one side is half the width of the paper i.e., 4 inches, and the hypotenuse is the fold we need to find. By using the Pythagorean theorem (which states that in a right-angled triangle, the square of the hypotenuse, c, is equal to the sum of squares of the other two sides, a and b; c² = a² + b²), we get the fold as square root of (8^2 + 8^2) = 11.31 inches. Therefore, the length of the fold is approximately 11.31 inches.
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Using vertex form write an equation for the parabola that passes through the point ( 2 , 5 ) and has a vertex ( 1 , 3 ).
The equation of the parabola is y = 2(x - 1)² + 3
How to determine the equation of the parabola?From the question, we have the following parameters that can be used in our computation:
Vertex = (1. 3)
Point = (2, 5)
These parameters can be expressed as
(h, k) = (1, 3)
(x, y) = (2. 5)
A parabola can be represented as
y = a(x - h)² + k
Substitute the known values in the above equation, so, we have the following representation
y = a(x - 1)² + 3
Next, we have
5 = a(2 - 1)² + 3
Evaluate the difference and the exponent
5 = a + 3
So, we have
a = 2
Substitute a = 2 in y = a(x - 1)² + 3
y = 2(x - 1)² + 3
Hence, the equation is y = 2(x - 1)² + 3
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Which expressions are equivalent to 42-5? Choose all the correct answers. Show your work in arriving at your answers.
Answer:
B, C, E
Step-by-step explanation:
Exponent Rules
\(a^b \cdot a^c=a^{b+c}\)
\(\dfrac{a^b}{a^c}=a^{b-c}\)
\(a^n \cdot b^n=(ab)^n\)
\(a^0=1\)
\(\dfrac{1}{a^b}=a^{-b}\)
\((a^b)^c=a^{bc}\)
\(\textsf{A}\quad42^{-3} \cdot 42^8=42^{-3+8}=42^5\)
\(\textsf{B}\quad \dfrac{42^{-7}}{42^{-2}}=42^{-7-(-2)}=42^{-5}\)
\(\textsf{C}\quad \dfrac{6^{-5}}{7^5}=6^{-5} \cdot 7^{-5}=(6 \cdot 7)^{-5}=42^{-5}\)
\(\textsf{D}\quad 42^0 \cdot 42^5=1 \cdot 42^5=42^5\)
\(\textsf{E}\quad \left(\dfrac{1}{42^{-5}}\right)^{-1}=(42^5)^{-1}=42^{-5}\)
\(\textsf{F}\quad \left(\dfrac{6^{-5}}{7^5}\right)^{-1}=\left(6^{-5} \cdot 7^{-5}\right)^{-1}=\left(\left(6 \cdot 7\right)^{-5}\right)^{-1}=42^{-5(-1)}=42^5\)
Check one by one
#A
\(\\ \rm\Rrightarrow 42^{-3}42^8=42^{-3+8}=42^5\)
#B
\(\\ \rm\Rrightarrow \dfrac{42^{-7}}{42^{-2}}=42^{-7+2}=42^{-5}\checkmark\)
#C
\(\\ \rm\Rrightarrow \dfrac{6^{-5}}{7^5}=6^{-5}7^{-5}=42^{-5}\checkmark\)
#d
\(\\ \rm\Rrightarrow 42^0.42^5=42^{0+5}=42^5\)
#e
\(\\ \rm\Rrightarrow \left(\dfrac{1}{42^{-5}}\right)^{-1}=42^{-5}\checkmark\)
#f
\(\\ \rm\Rrightarrow \left(\dfrac{6^{-5}}{7^5}\right)^{-1}\)
\(\\ \rm\Rrightarrow (42^{-5})^{-1}\)
\(\\ \rm\Rrightarrow 42^5\)
Find an angle that is positive, less than 360° , and coterminal with 395° . Subtract 360° 360 ° from 395° 395 ° .
Given an angle that is positive, less than 360°, and coterminal with 395° is 35°.
Subtract 360° from 395°.
We know that 1 revolution is equal to 360°.
Therefore, a positive angle that is less than 360° and coterminal with 395° is 35°.
When an angle is less than 360° and shares the same terminal side with another angle that is less than 360°, then the angle is referred to as a coterminal angle.
In other words, the two angles have the same initial side and terminal side but can be either positive or negative.
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A right triangle is shown below.
4√2 m
45°
Find the lengths of the missing sides
vertical leg
m
horizontal leg
45°
m
Answer:
Dang, too difficult. Anyways,
In a right triangle, if one angle is 45 degrees, it means that the other two angles must be 45 degrees as well, making it an isosceles right triangle. Given that the length of one leg is 4√2 m, we can determine the lengths of the missing sides using the properties of an isosceles right triangle.
Since an isosceles right triangle has two equal legs, the lengths of the vertical leg and horizontal leg will be the same. Let's denote the length of each leg as "m."
Using the Pythagorean theorem, we can find the length of the hypotenuse (the side opposite the right angle) in terms of "m":
hypotenuse^2 = leg^2 + leg^2
hypotenuse^2 = m^2 + m^2
hypotenuse^2 = 2m^2
To find the length of the hypotenuse, we take the square root of both sides:
hypotenuse = √(2m^2) = √2 * m
Therefore, the length of the hypotenuse is √2 * m.In summary, for the given isosceles right triangle with one leg measuring 4√2 m, both the vertical leg and horizontal leg will have a length of "m," while the length of the hypotenuse will be √2 * m.
can anyone please help? urgenttt
The values of the angles and sides of the given right angle triangle are:
1) sin Q = 9/13
2) AB = 10
How to use trigonometric ratios?The common three trigonometric ratios in a right angle triangle are:
sin x = opposite/hypotenuse
cos x = adjacent/hypotenuse
tan x = opposite/adjacent
1) To find sin Q from the triangle, we have:
sin Q = pPR/PQ
sin Q = 9/15
2) Using Pythagoras theorem, we can find side AB as:
AB = √(6² + 8²)
AB = √100
AB = 10
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Mr. Khan and his wife are going to equally share 3 brownies. How many brownies will
they each get?
Answer:
1 1/2
Step-by-step explanation:
3/2= 1 1/2
At his comic book store, Korey's Comics, Korey sells approximately $3,250 in comic books each month.
But as a comic book dealer, Korey only pays $1,285 for these comic books. Korey's monthly operating expenses, including labor, are $875. Calculate Korey's monthly net income.
Answer:
Korey's monthly net income is $1090Step-by-step explanation:
The spending is the cost plus expenses:
1285 + 875 = 2160Net income is the difference of money made and spent:
3250 - 2160 = 1090what is the volume of the rectangular prism
It is all the numbers multiplied together. 135
Answer:
\(\Huge\boxed{D.135 cm^3}\)
Step-by-step explanation:
Hello There!
We can find the volume of the figure by using the formula for volume of a rectangular prism
\(V=lwh\)
where l = length, w = width and h = height
we are given all of the dimensions so all we have to do is plug in the values
so
V = 3 x 9 x 5
3x9=27
27x5=135
so the volume of the rectangular prism is 135 cm³
3) Use the coordinates (5,48) and (10,72) to write the equation for the line of best fit.
Number 3
Answer:
y=24/5x+24
Step-by-step explanation:
You must find your slope first. (72-48=24)(10-5=5). (24/5 does not simplify so your slope is just 24/5). Then you can use either y=mx+b or y-y1=m(x-x1) to find your b. I will use y=mx+b. So you would plug in you first coordinate (5,48) and your slop (24/5). You put 48 as your y and 24/5 as your m and 5 as your x but you keep b as itself because you don´t know it yet. So it would look like this (48=24/5(5)+b). Now you have to distribute. (48=24+b). Now since 24 is positive you must subtract it to get b by itself so (48-24=24) So your b=24. Your equation is y=24/5x+24.
Hope this helped!
what is the relationship between two variables such that when one variable doubles the other variable doubles
The relationship between two variables in which one variable doubles when the other variable doubles is called a direct proportion or direct relationship.
This means that the two variables are directly related, and their values increase or decrease in the same proportion.
In mathematical terms, this is represented by a linear equation in the form of y = kx, where y is the dependent variable, x is the independent variable, and k is the constant of proportionality.
Therefore, when x doubles, y doubles as well, and when x triples, y triples as well.
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Ms. Diaz's garden is 15 feet long. She divides it into 6 equal sections to plant
6 different kinds of flowers. Which statement describes the length, in feet, of
each section of her garden?
Answer:
length of each section is 15/6 = 2 1/2
Step-by-step explanation:
Answer:
2.5 feet
Step-by-step explanation:
All you have to do is take 15 and divide it by 6 and you will get 2.5
hope that helps.
Write an equation for a circle with center at (5,-2) and diameter of 8 centimeters.
I’ll give Brainlessly or whatever it’s called
Answer:
\((x-5)^2+(y+2)^2=16\)
Step-by-step explanation:
lol brainlessly...
General Circle function: \((x-h)^2+(y-k)^2=r^2\), where h is the x-coordinate of the center, k is the y-coordinate of the center, and r is the radius.
The radius of the circle is half the diameter so: 8 / 2 = 4
The x-coordinate of the circle is 5
The y-coordinate of the circle is -2
Plug in.
\((x-5)^2+(y-(-2))^2=4^2\)
\((x-5)^2+(y+2)^2=16\)
Select the correct answer.
If Georgia and Farrah work together, it takes them 8 minutes to clean the espresso machine at their coffee shop. Alone, Farrah takes 12 minutes less than Georgia to clean the machine. If x is the number of minutes it takes Georgia to clean the machine by herself, the situation can be represented by this equation
Georgia takes 24 minutes to clean the espresso machine by herself.
The correct answer is an option D.
The equation for the situation is:
\(\frac{1}{x} +\frac{1}{x-12} =\frac{1}{8}\)
here, x is the number of minutes it takes Georgia to clean the machine by herself.
We need to find the value of x.
Consider the equation,
\(\frac{1}{x} +\frac{1}{x-12} =\frac{1}{8} \\\\\frac{(x -12)+x}{x(x-12)}=\frac{1}{8}\\\\\frac{x -12+x}{x^2-12x}=\frac{1}{8}\)
(2x - 12) × 8 = x² - 12x
16x - 96 = x² - 12x
x² - 12x -16x + 96 = 0
x² - 28x + 96 = 0
x²-24x-4x+96 = 0
(x - 24)(x - 4) = 0
x = 24 or x = 4
If x = 4, then x - 12 would be negative which is not possible.
Thus, it takes 24 minutes for Georgia.
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Find the complete question below.
what are the common factors of 15? , thanks!
Answer:
The factors of 15 are as follows - 1, 3, 5 and 15
Step-by-step explanation:
Factors are numbers that divides another number, leaving no remainder
Ari can make 15 cookies in 20 minutes. At this rate, how many cookies can Ari make in 4 hours?
Answer:
180
Step-by-step explanation:
60 * 4 = 240
240 / 20 = 12 groups of 20
12*15 = 180
180 cookies
what does it mean translate the figure 5 units up
By definition. a Translation is a transformation in which a figure is moved a fixed distance in a fixed direction.
The Image is the figure obtained after the transformation and the Pre-Image is the original figure.
In this case, you know that the figure shown in the picture must be translated 5 units up. Therefore, the rule for this transformation is:
\((x,y)\rightarrow(x,y+5)\)You can identify that the marked point on the Pre-Image has the following coordinates:
\(\mleft(-4,-3\mright)\)Therefore, applying the rule for this transformation, you get that the coordinates of the marked point in the final figure, are:
\(\mleft(-4,-3\mright)\rightarrow\mleft(-4,-3+5\mright)\rightarrow(-4,2)\)The answer is:
Coordinates of the marked point in the original figure:
\((-4,-3)\)Coordinates of the marked point in the final figure:
\(\mleft(-4,2\mright)\)what is the value of x? 5 60 30 marking brainliest and giving thanks to all!!!
this is 90 60 30 formula for example
90 meet 2x
30 meet x
and
60 meet x√3
so 90 meet 5
30 meet 5/2=2.5
and 60 meet 2.5√3
so the answer is 2.5
Answer:
2.5
Step-by-step explanation:
\(\sin 30\degree = \frac{x}{5}\\\therefore x = 5\sin 30\degree\\\therefore x = 5 \times \frac{1}{2}\\\therefore x = 2.5\)
In circle I I J = 9 and the area of shaded sector = 36π. Find m ∠JIK.
The measure of the central angle m ∠JIK is 160°.
Given that the circle I, in which IJ is the radius of 9 units, the area of shaded sector = 36π, we need to find the m ∠JIK, the central angle.
Area of the sector = central angle / 360° × π × radius²
∴ 36π = m ∠JIK / 360° × π × 9²
m ∠JIK = 360° × 4 / 9
m ∠JIK = 160°
Hence, the measure of the central angle m ∠JIK is 160°.
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Find fourth proportional of 6, 9, 18. Please say me correct answer