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The graph of line y = -5 is in Attachment, I hope it helps !
what is the equation of a line that passes through the point (5,-3) and is parallel to 6x+3y=-12
The equation of a line passing through the point (5,-3) and parallel to 6x+3y=-12 is y =-2x+7.
What does equation of parallel lines mean?Parallel lines are those that never intersect. As a result, two parallel lines must have the same slope but different intercepts (if they had the same intercepts, they would be identical lines).
The equation of the line is 6x+3y=-12.
6x+3y=-12
3y =-12-6x
y = -2x-4
The slope of this line is -2.
Because parallel lines have the same slope, the new line will also have a slope of -2.
You now have a point (5,-3) and a slope; thus, use the Point-Slope form to solve the equation of a line.
y-y₁= m(x-x₁)
y+3 = -2(x -5)
y+3 = -2x+10
y =-2x+7
The equation of a line passing through the point (5,-3) and parallel to 6x+3y=-12 is y =-2x+7.
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Please help me Write the slope-intercept form of the equation of the line through (-5,-1) with a slope= -2/5
TYSM!!!
Answer:
y= -2/5x + -3
Step-by-step explanation:
y=mx+b
-1= -2/5(-5) +b
-1= 2+b
Solve for b
b= -3
Fill in the b and m and you get the answer
A father is 28 years older than his daughter. In six years' time, he will be three times her age. Find their present ages.
Please include your working out!!
Answer:
Daughter's age = 6Father's age = 34Step-by-step explanation:
Let the age of daughter be x
Then the age of father will be x + 28
In 6 years time:-
The age of father = x + 28 + 2 = 30 + x
The age of daughter = x + 6
According to the question,
Father will be three times the age of his daughter.
30 + x = 3(x + 6)
30 + x = 3x + 18
x - 3x = 18 - 30
-2x = - 12
x = - 12/-2
x = 6
So therfore,
Daughter's present age = 6 years
Father's present age = 34 years
Hope this helps :)
A study is done to determine the attitudes of male university students towards careers. The researcher interviews 100 of the male students enrolled in a first-year course at the university. What is the sample in this situation?
all university students
male university students
the male students taking this course
the 100 male students interviewed
Answer:
I need the answer
Step-by-step explanation:
Answer:
Step-by-step explanation:
The sample is the part of the population that somebody wants to study. therefore, the sample is the 100 male students interviewed
Larry made 32 3/4 oz of lemonade in a glass pitcher but he accidently spilled 7/8 oz on the table. How much lemonade is left in the pitcher?
Answer: 31 7/8
Step-by-step explanation:
Firstly, we add the whole part which is 31 into the fraction making it an improper fraction. Then solve the problem by making a common denominator of 3/4 from the whole fraction into 6/8 and adding it to the previous fraction, then subtracting the spilled amount. To make the improper fraction a whole fraction/normal, just divide by the denominator. That's all!
31 x 8 = 248
248 + 6 = 254
254 - 7 = 247
247 ÷ 8 = 31 + \(\frac{7}{8}\)
OR 31 \(\frac{7}{8}\)
how do I divide with fractions the only part i know about it is that we flip it around and then we multiply but the thing is i dont know what to do next
to divide fractions, flip the second fraction around (take the reciprocal), multiply the fractions, and simplify the answer.
To divide with fractions, you need to multiply the first fraction by the reciprocal of the second fraction. Dividing fractions involves multiplying the first fraction by the reciprocal of the second fraction, as you stated. Here is how it works in detail:Step 1: Flip the second fraction. You will need to take the reciprocal of the second fraction, meaning you will flip it around. This way, instead of dividing the fractions, you will be multiplying them.Step 2: Multiply the first fraction by the reciprocal of the second fraction. Next, you will multiply the first fraction by the reciprocal of the second fraction.
You can write this as: \($$\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\cdot \frac{d}{c}$$\)\($$\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\cdot \frac{d}{c}$$\)
Note that this is simply multiplying the first fraction by the flipped second fraction, as you stated earlier. Step 3: Simplify the result. Finally, you will need to simplify the result if possible. You can do this by reducing the fraction to its lowest terms, if necessary. If you're asked to give the answer as a mixed number, you will need to convert the improper fraction to a mixed number. In conclusion, to divide fractions, flip the second fraction around (take the reciprocal), multiply the fractions, and simplify the answer.
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what is the unit rate of 180 to 4
Answer:
18/4=45
Step-by-step explanation:
Sam bought a baseball glove for $35. That is 7 times as much as he paid for a baseball.
\(7x = 35\)
\(x = \frac{35}{7} = 5\)
The ball was 5$(I'm assuming that's what u want)Sam bought a baseball glove for $35. That is 7 times as much as he paid for a baseball. Therefore, The ball was 5$.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Sam bought a baseball glove for $35. That is 7 times as much as he paid for a baseball.
Let x be the price of the baseball:
The equation form
7x = 35
x = 35/7
x= 5
Therefore, The ball was 5$
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The area of a triangle is increasing at a rate of 4 cm2/min and its base is increasing at a rate of 1 cm/min. At what rate is the altitude of the triangle increasing when the altitude is 20 cm and the area is 80 cm2 ?
A man 2 m tall walks away from a lamp post whose light is 5 m above the ground. If he walks at a speed of 1.5 m/s, at what rate is his shadow growing when he is 10 m from the lamp post?
Sand is being dumped from a conveyor belt at a rate of 1.2 m3/min and forms a pile in the shape of a cone whose base diameter and height are always equal. How fast is the height of the pile growing when the pike is 3 m high?
(1) The altitude of the triangle is increasing at a rate of 0.4 cm/min when the altitude is 20 cm and the area is 80 cm².
(2) We can solve for (ds/dt), the rate at which the shadow is growing.
(3) We can solve for (dh/dt), the rate at which the height is growing, when h = 3 m.
(1)To find the rate at which the altitude of the triangle is increasing, we can use the formula for the area of a triangle and differentiate it with respect to time.
Let A be the area of the triangle, b be the base, and h be the altitude. We have the formula for the area of a triangle:
A = (1/2) * b * h
Differentiating both sides with respect to time t:
dA/dt = (1/2) * (db/dt) * h + (1/2) * b * (dh/dt)
Given that dA/dt = 4 cm²/min and db/dt = 1 cm/min, we can substitute these values into the equation:
4 = (1/2) * 1 * 20 * (dh/dt)
Simplifying the equation:
4 = 10 * (dh/dt)
Now we can solve for (dh/dt):
dh/dt = 4/10 = 0.4 cm/min
Therefore, the altitude of the triangle is increasing at a rate of 0.4 cm/min when the altitude is 20 cm and the area is 80 cm².
(2) To find the rate at which the man's shadow is growing, we can use similar triangles and differentiate the relationship between the height of the man, the distance between the man and the lamp post, and the length of the shadow.
Let h be the height of the man, d be the distance between the man and the lamp post, and s be the length of the shadow. We have the following similar triangles:
h/s = (h+5)/(s+d)
Differentiating both sides with respect to time t:
(dh/dt)/s = [(dh/dt) + 0]/(s + d) - (h+5)/(s+d)² * (ds/dt)
Given that dh/dt = -1.5 m/s (since the man is getting farther from the lamp post), h = 2 m, d = 10 m, and we want to find (ds/dt), the rate at which the shadow is growing, we can substitute these values into the equation:
(-1.5)/s = (-1.5)/(s+10) - (2+5)/(s+10)² * (ds/dt)
Now, we can solve for (ds/dt), the rate at which the shadow is growing.
(3) To find how fast the height of the pile is growing, we can use related rates and the formula for the volume of a cone.
Let V be the volume of the sand pile, r be the radius of the base, and h be the height of the cone. We have the formula for the volume of a cone:
V = (1/3) * π * r² * h
Differentiating both sides of the equation with respect to time t:
dV/dt = (1/3) * π * (2r * dr/dt * h + r² * dh/dt)
Given that dV/dt = 1.2 m³/min and dh/dt is what we want to find, we can substitute these values into the equation:
1.2 = (1/3) * π * (2r * dr/dt * h + r² * dh/dt)
Since the base diameter and height are always equal, we have r = h/2. Let's substitute this into the equation:
1.2 = (1/3) * π * (2(h/2) * dr/dt * h + (h/2)² * dh/dt)
Simplifying the equation:
1.2 = (1/3) * π * (h * dr/dt * h + (h²/4) * dh/dt)
1.2 = (1/3) * π * (h² * dr/dt + (h²/4) * dh/dt)
Now, we need to find the value of dr/dt, which represents the rate at which the radius of the base is changing. Since the base diameter and height are always equal, when the height is 3 m, the radius is 3/2 = 1.5 m.
Now we can solve for (dh/dt), the rate at which the height is growing, when h = 3 m.
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a. The altitude of the triangle is increasing at a rate of -1.5 cm/min.
b. The man's shadow is increasing at a rate of 1 m/s.
c. The height of the pile is growing at a rate of 0.1698 m/min.
How to calculate the area of a triangle?In Mathematics and Geometry, the area of a triangle can be calculated by using the following mathematical equation (formula):
Area of triangle = 1/2 × b × h
Where:
b represent the base area.h represent the height.For the base area, we have:
b = 2(80)/20
b = 8 cm.
By taking the first derivative of the triangle's area by using product rule, we have:
dA/dt = 1/2(db/dt)h + 1/2(dh/dt)b
4 = 1/2(20) + 1/2(8)(dh/dt)
(dh/dt) = (4 - 10)/4
(dh/dt) = -1.5 cm/min.
Part B.
Let the variable x represent the distance between the man and the lamp post.
Let the variable y represent the length of the man's shadow.
Based on the basic proportionality theorem, we have:
\(\frac{5}{x+y} =\frac{2}{y}\)
5y = 2x + 2y
3y = 2x
3dy/dt = 2dx/dt
dy/dt = 1/3 × 2dx/dt
dy/dt = 2/3 × 1.5
dy/dt = 1 m/s.
Part C.
In Mathematics and Geometry, the volume of a cone can be calculated by using this formula:
Volume of cone, V = 1/3 × πr²h
Where:
h represents the height.r represents the radius.Since the height and base diameter are always equal, we have:
radius = base diameter/2 = h/2
V = 1/3 × π(h/2)²h
V = πh³/12
dV/dt = 3πh²/12dh/dt
1.2 = 3 × 3.142 × (3)²/12dh/dt
dh/dt = 0.1698 m/min.
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When 5x^2−5 is completely factored, which is one of its factors?
Answer:
no, never completely factored with negative exponents
Step-by-step explanation:
5x^-3 = 5/x^3
ARE THEY SIMILAR HELP!
Answer:
YES THEY ARE SIMILAR
Step-by-step explanation:
good luck!
Answer:
I'm positive they are but I dont know for sure
2. Two lines are represented by equations: 2x + 4y = 21 and y = kx - 12. What value of k will
make lines parallel?
Answer:
-1/2
Step-by-step explanation:
- arrange the equation in the y=mx+b form
2x + 4y =21, subtract 2x from both sides of the equation
4y= -2x +21 , divide both sides by 4
y= -1/2x +21/4
-compare the slopes m of the 2 equations
y= kx -12, has the slope k
y= -1/2x +21/4, has the slope -1/2
- If the lines are parallel then they have the same slope
Therefore, k= -1/2
Which equation can be used to solve for x in the following diagram?
Answer:
D
Step-by-step explanation:
The two angles are equal to 180 degrees
Devon and Aimee are creating model volcanoes for their science project. Devon’s volcano has a radius of 3.5 inches, and a volume of approximately 89.80 cubic inches. Aimee’s volcano has the same height as Devon’s, but the radius is twice the length of the radius of Devon’s volcano. Which of the following is closest to the volume of Aimee’s volcano?
Answer:
359.2 cubic inches
Step-by-step explanation:
what is 3x10x178 I need help asap
Answer:
3x10=30 30x178=5,430
Step-by-step explanation:
\(3 \times 10 \times 178 \\ 30 \times 178 \\ 5340 \: \: answer\)
Nozomi works as a waiter and earns $16/h. She also receives 8% of the gratuities earned by all the staff. In one week, she worked 20 hours and the gratuities totalled $1,267.28. What was Nozomi’s gross pay?
Her gross pay is $421.38
What was Nozomi’s gross pay?First, we know that she gets $16 per hour, and she worked 20 hours, then she gets:
20*$16 = $320
Now we also know that she receives a percentage of 8% of the gratuities, and the gratuities totaled $1,267.28
The 8% of $1,267.28 is:
$1,267.28*(8%/100%) = $1,267.28*0.08 = $101.38
Her gross pay is:
P = $101.38 + $320 = $421.38
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A bag of fruits cost 99p
How much will 9 bags cost?
Answer:
891p
Step-by-step explanation:
1bag=99p
9bags=99x9
=891p
For what value of m does 3x + 4 = mx + 4 have an infinite number of solutions?
Answer:
3
Step-by-step explanation:
Solve for m.
3x + 4 = mx + 4 subtract 4 from each side
3x + 4 - 4 = mx + 4 - 4 the 4’s on both sides will cancel
3x = mx divide each side by x
3x/x = mx/x The x cancels and you’re left with
3 = m
If m = 3 then
3x + 4 = mx + 4 will become
3x + 4 = 3x + 4 subtract 4 from each side
3x + 4 - 4 = 3x + 4 - 4 the 4’s on both sides will cancel
3x = 3x divide each side by 3
3x/3 = 3x/3 The 3s cancel and you’re left with
x = x
So for any value of x, positive or negative, they will equal each other. Therefore there are an infinite number of solutions when m = 3
Consider a sample space with 7 elements. Let A be an event with 5 elements and B be an event with 4 elements. Let's assume that there are 2 repeated elements between both events.P(A y B) =A) 4/7B) 2/7C) 5/7D) 9
Option D (9) is not a probability and is not a possible answer choice for a probability question.
To find the probability of the intersection of events A and B (denoted as P(A ∩ B)), we need to know how many elements are in both A and B. Since there are 2 repeated elements between the events, this means that there are a total of 7 - 2 = 5 distinct elements between them.
Therefore, P(A ∩ B) = 5/7.
Note that none of the answer choices provided match this result exactly. Option A is the closest with a probability of 4/7, but this is the probability of A alone, not the intersection of A and B. Option B (2/7) is the probability of B alone and option C (5/7) is the probability of either A or B occurring, not the intersection.
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10 is greater than or equal to four minus one.
In symbols, this statement is?
Answer:
Step-by-step explanation:
4n - 1 ≤ 9
≤ -----> this symbol stands for greater than or equal to
Determine if each statement is true or false based on the diagram.
Answer:
Step-by-step explanation:
1). JL = 36
Reason : Since, PN is the segment joining midpoints of sides JK and LK,
Therefore, JL = 2(PN)
JL = 2(36)
JL = 72
False.
2). ML = 36
Reason: Since, ML = \(\frac{1}{2}(JL)\)
ML = \(\frac{1}{2}(72)\)
= 36
True.
3). MP = 48.5
Reason : By the same property, MP = \(\frac{1}{2}(LK)\)
MP = \(\frac{97}{2}\)
MP = 48.5
True.
4). ∠JLK = 102°
Reason: Segment joining midpoints of two sides of a triangle is parallel and measures half of the third side of the triangle.
Since, PM║LK and JL is a transversal line,
∠JMP ≅ ∠JLK [Corresponding angles]
m∠JLK = 102°
True.
5). ∠PNK = 102°
Reason : Since, PN║JL and LK is a transversal line,
∠JLK ≅ ∠PNK [Corresponding angles]
∠PNK = 102°
True.
6). MP║PK
Reason : MP and PK are intersecting each other at P.
Therefore, they can not be parallel.
False.
Aretha wanted to gather data about the cost of local bowling leagues in her area. She plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20.
Identify and interpret the y-intercept in this model.
The y-intercept in this model is 20, representing the fixed one-time registration fee for participating in the local bowling league.
In the given equation y = 15x + 20, where y represents the monthly fee and x represents an unspecified variable, the y-intercept can be identified by setting x = 0. When x = 0, the equation becomes y = 15(0) + 20, which simplifies to y = 20.
Interpreting the y-intercept, we can conclude that the y-intercept in this model is 20. This means that even without any additional factors or considerations (represented by the variable x), there is a fixed cost of $20 associated with participating in a local bowling league. This fixed cost, likely referred to as a one-time registration fee, is incurred at the beginning of joining the league and is not affected by any other factors such as the duration or specific features of the league.
Therefore, the y-intercept of 20 indicates the baseline cost or the starting point for the monthly fee in the bowling league model, reflecting the required one-time registration fee that participants need to pay.
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Ruben is admiring a statue in Norwood Park from 24 meters away. If the distance
between the top of the statue to Ruben's head is 25 meters, how much taller is
the statue than Ruben?
meters
Answer:
286.5 meters taller than Ruben.
Step-by-step explanation:
We can use the Pythagorean theorem to solve this problem. Let's call the height of the statue "h". Then we have:
h^2 + 24^2 = (h+25)^2
Expanding the right side:
h^2 + 576 = h^2 + 50h + 625
Subtracting h^2 from both sides:
576 = 50h + 625
Subtracting 625 from both sides:
-49 = 50h
Dividing by 50:
h = -0.98
Since a negative height doesn't make sense in this context, we made an error in our calculations. Let's try again, using the fact that the distance between the top of the statue and Ruben's head is 1 meter:
h^2 + 24^2 = (h+1)^2
Expanding the right side:
h^2 + 576 = h^2 + 2h + 1
Subtracting h^2 from both sides:
576 = 2h + 1
Subtracting 1 from both sides:
575 = 2h
Dividing by 2:
h = 287.5
I need help please.
1 (4x – 8) + 3x = 36
Caitlin is designing a railing for a set of stairs. The railing will begin at a height of 36 inches and follow the slant of the stairs, which decreases 9 inches for every 12 horizontal inches.
Answer:
\(y = \frac{-3}{4}x + 36\)
Step-by-step explanation:
Data provided in the question
Height = 36 inches
Stant of the stairs followed that declines 9 inches for every 12 horizontal inches
Height = x
x = from top of the stairs
based on the above information
Therefore the change in rate is
\(\frac{-9}{12} = \frac{-3}{4}\)
It depicts the line sloping.
Now the function would be determined by the line equation which is as follows
y = mx+c
\(m = \frac{-3}{4}\)
where,
c = 36 inches
So, the function is
\(y = \frac{-3}{4}x + 36\)
Answer:
Answer is A
Step-by-step explanation:
the cross sectional area of this circular duct is 226.865 square inches.
what would be the diameter of the duct
Answer:
D. 17
Step-by-step explanation:
No-
ANN IS PLANNING A TRIP TO EUROPE AND NEEDS SOME EUROS. 1 ASSUME THAT THE CURRENT EXCHANGE - RAIGS is I CANADIAN DOLLAR = 0.694 euros. How MANY CANADIAN DOLLARS WILL SHE NEED TO BUY 1000 EUROS? SALLY WORKED 49 HOURS THIS WGER. A REGULAR WORK WEEK is 40 Hours -THE OVER TIME HOURLY PAY RATE is 1.5 TIMES THE REGULAR HOURLY PAY RATE. FIND SALLY'S TOTAL PAY IF HER ? REGULAR HOURLY RATES is 12.00 PER NOUR -
Sally's total pay for working 49 hours, with a regular hourly rate of $12.00 per hour and an overtime rate of 1.5 times the regular hourly rate, is $642.00.
To find out how many Canadian dollars Ann will need to buy 1000 euros, we can use the given exchange rate of 1 Canadian dollar = 0.694 euros.
The calculation is as follows:
Amount in Canadian dollars = Amount in euros / Exchange rate
Substituting the values:
Amount in Canadian dollars = 1000 euros / 0.694 euros per Canadian dollar
Simplifying the expression:
Amount in Canadian dollars = 1440.692
Therefore, Ann will need approximately 1440.692 Canadian dollars to buy 1000 euros.
Now let's calculate Sally's total pay based on her work hours, regular hourly rate, and overtime rate.
Sally worked 49 hours, and a regular work week consists of 40 hours. So, she worked 9 hours of overtime.
Her regular hourly rate is $12.00 per hour, and the overtime hourly rate is 1.5 times the regular hourly rate, which is $18.00 per hour.
To calculate her total pay, we need to consider her regular hours and overtime hours.
Regular pay = Regular hours * Regular hourly rate
Regular pay = 40 hours * $12.00 per hour = $480.00
Overtime pay = Overtime hours * Overtime hourly rate
Overtime pay = 9 hours * $18.00 per hour = $162.00
Total pay = Regular pay + Overtime pay
Total pay = $480.00 + $162.00 = $642.00
Therefore, Sally's total pay for working 49 hours, with a regular hourly rate of $12.00 per hour and an overtime rate of 1.5 times the regular hourly rate, is $642.00.
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What is an equation of the line that passes through the point (-7, -6) and is parallel to the line x-y=7?
If you’re answer is correct, I WILL GIVE BRAINLIEST!!! Thank you!:)
Answer:
Step-by-step explanation:
For two lines to be parallel their slopes must be equal. For two lines to be perpendicular their slopes must be the negative reciprocal of each other.
Step 1 Find the slope of the equation.
Put it into the slope-intercept form. y = mx + b.
For x-y = 7, move the x to the left; therefore subtract the x from both sides. this leaves you -y = -x + 7
Then, divide both sides by -1 to get a positive y. -y/-1 = (-x + 7)/-1
This leaves y = x - 7 The slope(m) for this equation is m = 1
The other equation must also have a slope of 1 or m=1 for the lines to be parallel.
Use the point given to you (-7, -6) and substitute for (x, y)
The slope-intercept form y = mx + b can once again be used.
x = -7, y =-6, and slope or m = 1
Therefore, y = mx + b substituted will be -6 = (1)(-7) + b; now, solve for b which is the y intercept
-6 = -7 + b add 7 to both sides -6 +7 = -7 + b +7 ; therefore, b = 1
Now you know the slope(m) which is equal to 1 and the y-intercept(b) which is equal to 1.
Finally, substitute the m and b in the slope-intercept form
y = (1)x + 1 or y = x +1
If I have 30 blue balls and 10 red balls and 50 green balls How many balls to I have in all? 30 points.
Answer:
90 balls
Step-by-step explanation:
simply add them
Answer: 90 balls
Step-by-step explanation:
30 + 10 = 40
40 + 50 = 90.