Given ABCD is a square
The coordinates of point C = ( 7 , 2 )
The coordinates of point E = (1 , 0 )
We need to find the equation of the line passing through the points A , E and C
The general equation of the required line is:
\(y=mx+b\)Where m is the slope and b is a constant
the slope = Rise/Run
Rise = 2 - 0 = 2
Run = 7 - 1 = 6
Slope = 2/6 = 1/3
so,
\(y=\frac{1}{3}x+b\)using the point E = (1 , 0 ) to find the value of b
when x = 1 , y = 0
\(\begin{gathered} 0=\frac{1}{3}\cdot1+b \\ b=-\frac{1}{3} \end{gathered}\)So, the equation of the line is :
\(y=\frac{1}{3}x-\frac{1}{3}\)
The temperature in a hotel is 21 °C.
The temperature in the hotel is 26,7°C warmer than at the top of the mountain.
The temperature at the top of the mountain is 3.2°C colder than at the bottom of the mountain.
Work out the temperature at the bottom of the mountain.
The temperature at the bottom of the mountain is 50.9 °C.
Let's work through the given information step by step to find the temperature at the bottom of the mountain.
The temperature in the hotel is 21 °C.
The temperature in the hotel is 26.7 °C warmer than at the top of the mountain.
Let's denote the temperature at the top of the mountain as T_top.
So, the temperature in the hotel can be expressed as T_top + 26.7 °C.
The temperature at the top of the mountain is 3.2 °C colder than at the bottom of the mountain.
Let's denote the temperature at the bottom of the mountain as T_bottom.
So, the temperature at the top of the mountain can be expressed as T_bottom - 3.2 °C.
Now, let's combine the information we have:
T_top + 26.7 °C = T_bottom - 3.2 °C
To find the temperature at the bottom of the mountain (T_bottom), we need to isolate it on one side of the equation. Let's do the calculations:
T_bottom = T_top + 26.7 °C + 3.2 °C
T_bottom = T_top + 29.9 °C
Since we know that the temperature in the hotel is 21 °C, we can substitute T_top with 21 °C:
T_bottom = 21 °C + 29.9 °C
T_bottom = 50.9 °C
Therefore, the temperature at the bottom of the mountain is 50.9 °C.
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Marry collected 16.2 pounds of cans for the recycling center on Monday. On Tuesday, he collected 11.8 pounds. If the recycling center gives her $0.40 per pound how much money will she earn for both days of recycling?
If the recycling center gives Marry $0.40 per pound money she will earn for both days of recycling is $11.20
What information is given in the question?
Marry collected 16.2 pounds of cans for the recycling center on Monday.
On Tuesday, she collected 11.8 pounds.
The recycling center gives her $0.40 per pound.
According to the given question:
To find how much money she will earn for both days of recycling, calculate money earned on Monday and Tuesday. Then add the amount to get the amount earned on both days.
Money earned by Marry on Monday = 16.2 x 0.40 = $6.48
Similarly, money earned by Marry on Tuesday = 11.8 x 0.40 = $4.72
Therefore, Total money earned by Marry for both days
= 6.48 + 4.72
= $11.20
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What is 5/8 ÷ 3/4 I need to know this please hurry
Answer:
5/6
Step-by-step explanation:
i used a caculater
BRAINLIEST PLEASE
Jose' traveled from his home in Ocala to Gainesville. Gainesville is 37 miles
due north of Ocala. North is considered a positive direction and south is
considered a negative direction. What integer value would represent the
direction and the distance as Jose's traveled back home from Gainesville to
Ocala?
Pls help!!!!!!
Answer:
The integer -37 represents the direction and the distance covered by Jose from Gainesville to Ocala.
Step-by-step explanation:
The direction is represented by the sign that accompanies the distance, since Jose is returning from Gainesville, then the direction must represented by a minus sign (-), since he is travelling southwards. The distance is the magnitude of the length covered by Jose during his return. Hence, distance is represented by the natural number 37.
Finally, the integer -37 represents the direction and the distance covered by Jose from Gainesville to Ocala.
Select all of the fractions that are equivalent to -2/3 –3/-2 -3/2 2/-2 2/-3 2/3 -2/-3 Please hurry and help I really need it
Answer:
2/-3
Step-by-step explanation:
Hope this helped. And I know that you can choose more than one, but I'm pretty sure this is the only one that's equivalent to -2/3
Volume of a sphere in terms of π with a radius of 2
Answer:
33.51
Step-by-step explanation:
You need to use the equation \(\frac{4}{3} \pi r\)³.
Hope this helps.
Answer:10.7π
Step-by-step explanation:
radius=r=2
volume of sphere=4/3 x π x r x r x r
Volume of sphere=4/3xπx2x2x2
Volume of sphere=(4xπx2x2x2) ➗ 3
Volume of sphere=32π ➗ 3
Volume of sphere=10.7π
If b = -2, what is 3b-7 ?
g is the centroid of triangle abc.what is the value of x? what is the length of segment dg? unitswhat is the length of segment ag? unitswhat is the length of segment ad? units
g is the centroid of triangle abc, the value of x is 2/3.
The length of segment DG is (2/3) * (length of AB) ,The length of segment AG is (1/3) * (length of AB),The length of segment AD is (1/3) * (length of AB).
The centroid of a triangle is the point at which the three medians of the triangle intersect each other. In other words, it is the point of intersection of the three lines which each divide the opposite side of the triangle into two equal parts.
Let us consider a triangle ABC with vertices A (a1, b1), B (a2, b2), and C (a3, b3). The x coordinate of the centroid G (x, y) is given by:
x = (a1 + a2 + a3) / 3
The y coordinate of the centroid G (x, y) is given similarly as x
In your question, the x coordinate of the centroid G is given as x = 2/3. This means that the x coordinate of G is 2/3 of the way between A and B.
Therefore, the length of segment DG is (2/3) * (length of AB).
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I don't know how to do this. Can someone help me.
Today I am trying to change peoples' days for the better. Say something nice in the comments, or answer this "question", whether it's an inspirational quote, poem, picture, or simple 'hi'. I want to make your day, so answer this question, and take my points. Keep Shining!!! Love you all :)
Answer:
Hello! Thank you a lot! My nice thing would have to be keep going even when things get hard. We all have something unique about us and were all on a journey to figure out what that is. Don't let anyone take away what makes you unique.
Step-by-step explanation:
Total Price: The sales tax rate is 8%. If the sales tax on a 10-speed bicycle is $12, what is the purchase price? The purchase price is $ What is the total price? The total price is $ Get Help: Video eBook Points possible: 1
Answer:
Purchase Price = $150 and Total Price = $162
Step-by-step explanation:
Purchase price = Tax Amount / Tax Percentage (as decimal)
Purchase Price = $12 / .08
Purchase Price = $150
Total Price = Purchase Price + Tax
Total Price = 150 + 12 = $162
I hope this helps!
-The Business Man
kirsty and Flo are raising money for charity; Kirsty raises /ive times as much as Fio, Tiesa
amount they raise is £172.50. How much do they each raise?
THANK U
Answer:
Kirsty raised £143.75 and Flo raised £28.75
Step-by-step explanation:
x = money raised by Flo
5*x = money raised by Kirsty
6*x = money raised together
6x = £172.50
Now divide each side by 6:
x = £172.50:6
x = £28.75 (money raised by Flo)
£172.50-£ 28.75 = £143.75 (money raised by Kirsty)
Kirsty raised £143.75 and Flo raised £28.75
1 point
19. Write the equation for this line in slope-intercept form. (y=mx+b)*
Answer:
y=-4x+5...
Step-by-step explanation:
y=-4x+5...
Extra Credit:
18
60°
V =
Hello guys I need help
Thank you
Answer:
\(\bold{V=7048.48 ft^3}\)
Step-by-step explanation:
Solution Given:
radius(r)=12
In right-angled triangle
Hypotenuse = 18
base angle =60°
Note:
In a right-angled triangle, we can use the trigonometric ratios sine, cosine, and tangent to relate the angles and sides of the triangle.
Here are the trigonometric ratios for a right-angled triangle:
Sine (sin): The sine of an angle is the ratio of the length of the side opposite the angle to the length of the hypotenuse.
\(\boxed{\bold{sin(A) =\frac{ opposite}{hypotenuse}}}\)
Cosine (cos): The cosine of an angle is the ratio of the length of the side adjacent to the angle to the length of the hypotenuse.
\(\boxed{\bold{cos(A) = \frac{adjacent}{hypotenuse}}}\)
Tangent (tan): The tangent of an angle is the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle.
\(\boxed{\bold{tan(A) =\frac{ opposite}{adjacent}}}\)
Now for the question:
Over here the relation between opposite or height and hypotenuse is given by Sine, So using this formula:
\(\bold{sin(60^0) =\frac{ opposite\:or\ height}{18}}\)
doing criss-cross multiplication:
Sin 60°*18=opposite or height
\(\frac{\sqrt{3}}{2}*18\) =opposite or height
opposite or height(h)=\(9\sqrt{3}\)
Again,
We have
\(\boxed{\bold{Volume\:of\:cylinder= \pi * r^2 * h}}\)
where:
π (pi) is a mathematical constant approximately equal to 3.14
r is the radius of the base of the cylinder
h is the height of the cylinder
Now Substituting value
\(Volume = \pi * r^2 * h\\Volume=3.14*12^2*9\sqrt{3}\\Volume=\bold{7048.48 ft^3}\)
Justin has 450 stickers. Carla has 900. she shares some of her stickers with him. Justin and Carla now have the same amount of stickers. how many stickers did she share with him?
Answer:
225 stickers
Step-by-step explanation:
(900+450)/2 = 1,350/2= 675
so, Carla shared with Justin :
900-675 = 225 stickers
The teachers are setting up a socially distanced summer retreat to discuss the 2021-
2022 school year. In order to rent the facilities there is a $1295 cost and then each
person will need to pay for own site for camping which is $45 for the weekend.
Mr. Jones would agree to organize the trip if he would have his costs paid for. How
many people would need to attend in order for the cost to be less than $60 per person? Please include a table, graph, and rule.
NO LINKS or anything like that, help ASAP.
9514 1404 393
Answer:
91, including Mr. Jones
Step-by-step explanation:
The total cost for n people to go on the trip will be ...
C(n) = 45n +1295
If Mr. Jones does not pay anything, this cost is divided among the remaining (n-1) persons, so the cost per person is ...
\(c(n)=\dfrac{C(n)}{n-1}\\\\c(n)=\dfrac{45(n-1)+45+1295}{n-1}=45+\dfrac{1340}{n-1}\)
We want to find n such that c(n) < 60.
\(45+\dfrac{1340}{n-1}<60\\\\\dfrac{1340}{n-1}<15\qquad\text{subtract 45}\\\\\dfrac{1340}{15}<n-1\qquad\text{multiply by $\dfrac{n-1}{15}$}\\\\90\dfrac{1}{3}<n\qquad\text{add 1}\)
A total of 91 people would need to attend in order for the cost per person to be less than $60.
Find (fog)(x) and the domain
Answer:
(fog)(x) = 2sqrt(x) + 3
Domain: {x | x ∈ R, x>=0}
Step-by-step explanation:
(fog)(x) = f(g(x))
let f(a) = f(g(x))
f(a) = 2a+3 = 2(g(x)) + 3 = 2sqrt(x) + 3
To find domain, pick most restricting domain of the functions that make up the compound function.
Use the table below to find d/dx[5f(x)-4x] x=2
The value of derivative of d/dx[5f(x)-4x] at x=2 = 16.
From the table:
At x=2,
f'(x) = 4
f(x) = 4x
= d/dx(5*4x - 4x)
= d/dx(20x - 4x)
= d/dx(16x)
= 16
Therefore the value of derivative of d/dx[5f(x)-4x] at x=2 = 16.
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Each of the black squares around the white star in the picture below has sides that are 12 cm long. What is the total area in black around the star?
According to the question the total area in black around the star is 972 cm².
What is area?Area is a two-dimensional measurement of space, representing the total amount of space taken up by a shape or object. It is typically measured in units of square meters, square feet, or square miles. Area can be used to measure the size of a house, a room, a parcel of land, or any other two-dimensional shape. Calculating area requires measuring the length and width of the shape, and then multiplying these two measurements together. Area is an important concept in mathematics, as it is used in many calculations, such as the area of a circle, the area of a triangle, and the area of a trapezoid.
This is because each side of the black square is 12 cm, and the star is surrounded by 8 black squares. To calculate the total area, we need to multiply the length of each side (12 cm) by the number of squares (8). This gives us 96 cm. We then need to square this number to get the area, which is 972 cm².
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What mixed number is equivalent to 27/4
Answer: 6 3/4 I hope this helps
Step-by-step explanation:
27/4
Convert the improper fraction into a mixed number
6 3/4
Mixed number-A number written as a whole number and a fraction.
Raphael and his four friends are having lunch. They agree to split the bill evenly at the end after adding a 20% tip. If the total bill is $85.60, how much will each person end up paying? A. $25.68 B. $20.54 C. $18.68 D. $17.12
The total amount to each person end up paying $20.54.
To find the total amount each person will pay, first calculate the 20% tip on the total bill and then divide the sum by the number of people.
To split the bill evenly among Raphael and his four friends, we first need to find the total cost including the 20% tip.
The tip is 20% of the original bill, which is equivalent to 0.20 x $85.60 = $17.12.
Therefore, the total cost of the bill with the tip is $85.60 + $17.12 = $102.72.
To split this evenly among the five people, we divide by 5:
$102.72 ÷ 5 = $20.54
So each person will end up paying $20.54.
20% of $85.60 is ($85.60 * 0.20) = $17.12
Add the tip to the total bill:
$85.60 + $17.12 = $102.72
Divide the total amount by the number of people (5): $102.72 / 5 = $20.54
Therefore, the answer is B. $20.54.
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32. Jimmy is putting down carpet in a square-shaped room. The floor has an area of
90 square feet. Jimmy knows that the side length of the floor must be √90 feet.
Which statement about the value of √90 feet is true?
A. √90 feet is between 9 feet and 10 feet but is closer to 9 feet.
B. √90 feet is between 9 feet and 10 feet but is closer to 10 feet.
C. √90 feet-45 feet
D. √90 feet = 8100 feet
Answer:
The correct answer is A.
Step-by-step explanation:
The correct answer is A.
To find the length of one side of the square, we need to take the square root of the area. Therefore, the square root of 90 is approximately 9.49 feet. Since this value falls between 9 feet and 10 feet, but is closer to 9 feet, the statement "√90 feet is between 9 feet and 10 feet but is closer to 9 feet" is true. So, Jimmy should cut the carpet to 9.49 feet to fit the square-shaped room.
The picture shows a piece of transparent paper with a design drawn on it. The paper is then folded twice, as shown. What will be seen on the folded paper?
Answer:
Step-by-step explanation:
someone please answer this its confusing me
I will mark you brainiest!
What is the length of LJ?
A) 23.0
B) 17.0
C) 4.7
D) 3.5
The the length of LJ is approximately 3.5.OptionD) is correct.
How to find the length of LJ?To find the length of LJ, we can use the Law of Sines, which states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all sides of the triangle.
Let's denote the length of JL as x. Then, we can set up the following proportion:
sin(23°) / LJ = sin(89°) / KL
where KL is given as 9.
We can simplify this proportion by using the fact that sin(89°) = cos(1°) (since the sine of the complement of an angle is equal to the cosine of the angle), and by using a calculator to find the values of sin(23°) and cos(1°):
0.3919 / LJ = 0.0175 / 9
Multiplying both sides by x and then dividing both sides by 0.0175, we get:
LJ = 0.3919*9/ 0.0175
x ≈ 3.5
Therefore, the length of LJ is approximately 3.5.OptionD) is correct.
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Joshua and Amahle are selling boxes of fruit for a Habitat for Humanity fundraiser. Customers can buy small
boxes of fruit and large boxes of fruit. Joshua sold 15 small boxes of fruit and 15 large boxes of fruit for a
total of $390.00. Amahle sold 20 small boxes of fruit and 25 large boxes of fruit for a total of $592.50. Find the cost of one small box of fruit and the cost of one large box of fruit.
Cost of small box: $
Cost of large box: $
The cost of one small box of fruit and the cost of one large box of fruit is $11.5 and $14.5 respectively.
What is the cost of small and large box?Let
cost of one small box of fruit = x
cost of one large box of fruit = y
15x + 15y = 390
20x + 25y = 592.50
From (1)
x + y = 26
x = 26 - y
Substitute x = 26 - y into (2)
20x + 25y = 592.50
20(26 - y) + 25y = 592.50
520 - 20y + 25y = 592.50
- 20y + 25y = 592.50 - 520
5y = 72.50
divide both sides by 5
y = 72.50/5
y = 14.5
Substitute y = 14.5 into
15x + 15y = 390
15x + 15(14.5) = 390
15x + 217.5 = 390
15x = 390 - 217.5
15x = 172.5
divide both sides by 15
x = 172.5/15
x = 11.5
Therefore, small box cost $11.5 and large box cost $14.5
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Austin takes1 minute and 45 seconds to run three-quarters of a circular track. His rate of motion is
/
radians per second.
Austin's rate of motion is (1/70)π Radians per second.
To determine Austin's rate of motion in radians per second, we need to use the formula for angular velocity:
ω = Δθ / Δt
Where:
ω = angular velocity (in radians per second)
Δθ = change in angular displacement (in radians)
Δt = change in time (in seconds)
We know that Austin runs three-quarters of a circular track, which means he covers an arc length that is equal to three-quarters of the circumference of the circle. Let's call the radius of the circle "r". Then, the arc length covered by Austin is given by:
s = (3/4) * 2πr
s = (3/2)πr
We also know that it takes Austin 1 minute and 45 seconds to cover this distance. This is the same as 105 seconds (since 1 minute = 60 seconds).
So, Δt = 105 seconds
Now, we can calculate the change in angular displacement (Δθ). The total angle around a circle is 2π radians, so the angle covered by Austin is given by:
Δθ = (3/4) * 2π
Δθ = (3/2)π
Therefore, Austin's rate of motion (ω) in radians per second is:
ω = Δθ / Δt
ω = [(3/2)π] / 105
ω = (3/210)π
ω = (1/70)π radians per second
So, Austin's rate of motion is (1/70)π radians per second.
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Please I really need help
Answer:
NM = 17, LY = 5, m<NLY = 53.13 degrees, m<NMY = 28.07 degrees
Step-by-step explanation:
To solve for NM, you just use the Pythagorean theorem,
\(8^{2} + 15^{2} = x^{2}\)
64 + 225 = \(x^{2}\)
289 = \(x^{2}\)
\(17 = x\)
To solve for LY, you can use geometric mean,
\(\frac{10}{y} = \frac{15+y}{10}\\\\100 = 15y + y^{2} \\y^{2} +15y - 100 = 0\\(y+20)(y-5) = 0\\y= 5\)
To solve for the other angles, use the inverse.
Sin-1, = 8/10
= 53.13
Other angle =
Tan-1 = 8/15
= 28.07
Hope this helps, I put a lot of time into this :)
20 POINTS MARKING BRAINLIST PLEASE HELP!!
The probability that a point falls in the red-shaded square is given as follows:
p = 9/16.
How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.
The probability that a point falls in the red shared square is then given by the division of the area of the red shaded square by the division of the area of the larger square.
The area of the red-shaded square is given as follows:
3² = 9.
The area of the larger square is given as follows:
4² = 16.
Hence the probability is given as follows:
p = 9/16.
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Which of the following functions are discontinuous? I-2 1. f(x) = T²+3x+2 4x²+2x-6 II. f(x) = III. f(x) = A. III only B. II and III only OC. I and III only D. I, II, and III 2 2z²+3z-1 Reset Selection
Explanation
\(\mathrm{Function}\:f\left(x\right)\:\mathrm{is\:continuous\:on\:interval}\:\left[a,\:b\right]\:\mathrm{if\:it\:is\:continuous\:at\:every\:point.}\)So for the first one
\(\begin{gathered} f(x)=\frac{x-2}{x^2+3x+2} \\ This\text{ is discontinuous} \\ \end{gathered}\)For the second one
\(\begin{gathered} f(x)=\frac{4x^2+2x-6}{2} \\ This\text{ is also continuous} \end{gathered}\)For the last one
\(\begin{gathered} f(x)=\frac{2x^2+3x-1}{x+5} \\ This\text{ is discontinous} \end{gathered}\)Therefore, the answers are options 1 and 111
Thus, option C is correct