A. Show that the equation represents a circle by rewriting it in standard form.
B. Find the center and radius of the circle.
x2+y2+10y+20=0
The equation \(x^2 + y^2 + 10y + 20 = 0\) represents a circle with center (0, -5) and radius 5.
To determine if the equation represents a circle, we need to rewrite it in standard form. The standard form of a circle equation is \((x - h)^2 + (y - k)^2 = r^2\), where (h, k) represents the center of the circle and r represents the radius.
Completing the square for the y terms:
\(x^2 + y^2 + 10y + 20 = 0\\ x^2 + y^2 + 10y = -20\\ x^2 + y^2 + 10y + 25 = -20 + 25\\ x^2 + (y + 5)^2 = 5\)
Now the equation is in standard form, \((x - 0)^2 + (y + 5)^2 = 5^2\), which represents a circle.
By comparing the equation to the standard form, we can determine the center and radius of the circle. The center is given by the values (h, k), which in this case is (0, -5). Therefore, the center of the circle is (0, -5).
The radius is determined by the term \(r^2\), which in this case is \(5^2 = 25\). Therefore, the radius of the circle is 5.
In summary, the equation x^2 + y^2 + 10y + 20 = 0 represents a circle with center (0, -5) and radius 5. The completion of the square allowed us to rewrite the equation in standard form, making it evident that it represents a circle. The center of the circle is determined by the values of x and y, and the radius is determined by the value of r.
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Ippolita brought a seedling that measured 11. 38 cm. She tracked the seedlings growth and found that it grew approximately 0. 045 cm each day. Approximately what was the height of the seedling after one week?
The height of the seedling after one week is approximately 11.695 cm, given that it grew approximately 0.045 cm each day and started at a height of 11.38 cm.
To determine the approximate height of the seedling after one week, we need to calculate how much it will grow in one week and add that to its initial height.
Since the seedling grows approximately 0.045 cm each day, it will grow approximately
0.045 cm/day × 7 days/week = 0.315 cm/week
Therefore, after one week, the height of the seedling will be approximately
11.38 cm + 0.315 cm = 11.695 cm
So the approximate height of the seedling after one week is 11.695 cm.
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(45 points)
(1) It takes 4 eggs for 5 waffles. How many more waffles can 6 eggs make?
(2) A 1-lb. mix will make 32 biscuits. How many ounces of mix are needed for 24 biscuits?
I NEED THIS ASAP!
Answer:
1). 6 eggs = 7.5 waffles 2). 8 ounces for 24 biscuits
Step-by-step explanation:
which of these random samples represents a representative sample of the systolic blood pressure of all patients in a hospital?
A representative sample based on the hospital scenario is option A
What is representative sample?A subset of a larger population that accurately reflects the traits, diversity, and distribution of the total population is referred to as a representative sample.
Due to time, financial, or logistical limitations, it is frequently not possible or practical to investigate an entire population when conducting research or gathering data. In these situations, researchers choose a representative sample from which to deduce generalizations about the total population.
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Ryan invested \$4,800$4,800 in an account in the year 1990, and the value has been growing exponentially at a constant rate. The value of the account reached \$6,300$6,300 in the year 1998. Determine the value of the account, to the nearest dollar, in the year 2007.
well, from 1990 to 1998 is 8 years, and we know the amount went from $4800 to $6300, let's check for the rate of growth.
\(\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$6300\\ P=\textit{initial amount}\dotfill &\$4800\\ r=rate\to r\%\to \frac{r}{100}\\ t=\textit{years}\dotfill &8\\ \end{cases} \\\\\\ 6300=4800(1 + \frac{r}{100})^{8} \implies \cfrac{6300}{4800}=(1 + \frac{r}{100})^8\implies \cfrac{21}{16}=(1 + \frac{r}{100})^8\)
\(\sqrt[8]{\cfrac{21}{16}}=1 + \cfrac{r}{100}\implies \sqrt[8]{\cfrac{21}{16}}=\cfrac{100+r}{100} \\\\\\ 100\sqrt[8]{\cfrac{21}{16}}=100+r\implies 100\sqrt[8]{\cfrac{21}{16}}-100=r\implies \stackrel{\%}{3.46}\approx r\)
now, with an initial amount of $4800, up to 2007, namely 17 years later, how much will that be with a 3.46% rate?
\(\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &4800\\ r=rate\to 3.46\%\to \frac{3.46}{100}\dotfill &0.0346\\ t=years\dotfill &17\\ \end{cases} \\\\\\ A=4800(1 + 0.0346)^{17} \implies A=4800(1.0346)^{17}\implies A \approx 8558.02\)
What is the measure of the major arc?
Answer:
The answer to your problem is,
Arc de Triomphe:
164 feet (50 metres) high and 148 feet (45 metres) wideStep-by-step explanation:
Depends which arc you are talking about I will do the:
Arc de Triomphe
Measurements
164 feet (50 metres)
high and 148 feet (45 metres) wide
It all depends on which arc
Thus the answer to your problem is,
Arc de Triomphe:
164 feet (50 metres) high and 148 feet (45 metres) wide
Uber charges.90 per mile, & a booking fee of $1.50. Lyft charges .87 per mile & a service fee of $2.45. Which would be cheaper for a 10 mile ride? Which would be cheaper for a 35 mile ride? Show how you calculated the price for each one to determine your answer, & write your answers in complete sentences.
Uber is cheaper for the 10 mile ride and Lyft is cheaper for the 35 mile ride
How to determine the one cheaper for a 10 and 35 mile ride?
Given:
Uber charges 0.90 per mile and a booking fee of $1.50
Lyft charges 0.87 per mile and a service fee of $2.45.
10m ride
For Uber:
price = 10(0.90) + 1.5 = 9 + 1.5 = $10.5
For Lyft:
price = 10(0.87) + 2.45 = 8.7 + 2.45 = $11.15
35m ride
For Uber:
price = 35(0.90) + 1.5 = 31.5 + 1.5 = $33
For Lyft:
price = 35(0.87) + 2.45 = 30.45 + 2.45 = $32.9
Therefore, for the 10 mile ride Uber is cheaper while for the 35 mile ride, Lyft is cheaper
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The Empire State building in New York City is approximately 1250 ft tall. How many U.S. nickels would be in a stack of the same height
Step-by-step explanation:
US nickels are .077 inches thick per nickel
1250 ft = 1250 ft * 12 inches / ft = 15 000 inches
15000 inches / ( .077 in / nickel ) =
194 805 nickels ( stacked on their flat sides) equals the Empire State building
On the blueprint of a house, 44 millimeters represents 8 meters. The length of the living room is 33 millimeters on the blueprint. What is
the actual length of the living room?
Answer:
Step-by-step explanation:
The actual length of the explanation is 6 meters.
Which equations are true for x = -2 and x = 2? Select two options
x²-4=0
x²=-4
3x² + 12 = 0
4x² = 16
2(x-2)² = 0
Answer:
2nd and 4th
Step-by-step explanation:
-2×2-4=0
4×2×2=16
A seasoning blend is 4\%4%4, percent onion powder, by mass. How much pure onion powder should they include in a 72\,\text{g}72g72, start text, g, end text bottle to make the final blend have 20\ , percent onion powder? khan academy
They need to put 14.4 grams of onion powder in each bottle.
Given,
The quantity of onion powder in a seasoning blend = 4%
We have to find the quantity of pure onion powder should they include in a 72g bottle to make the final blend have 20% onion powder;
How much is a percentage?
A percentage is a certain number or part in every hundred. It is a fraction with the denominator 100, and the symbol for it is "%."
Here,
Let x be the seasoning blend.
Now, 4% of 72=20% of x
⇒ 0.04×72=0.2×x
⇒ 0.2x=2.88
⇒ x=2.88/0.2
⇒ x=14.4 g
Therefore, a container should contain 14.4 grams of onion powder.
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If $42,000 is in sales and the commission is 2% how much does that person earn in a week
To calculate the earnings of a person based on sales and commission, we can multiply the sales amount by the commission rate.
Given:
Sales amount: $42,000
Commission rate: 2% (which can be written as 0.02)
Earnings = Sales amount * Commission rate
Earnings = $42,000 * 0.02
Earnings = $840
Therefore, the person would earn $840 in a week based on the given sales amount and commission rate.
The commission amount represents the additional income earned based on sales. However, to determine the total earnings for the week, we need to consider the base salary or any other fixed compensation the person receives. For the sake of this calculation, let's assume there is no base salary.
Thus, the person's total earnings for the week would be $840, which is solely from the commission on sales.
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Round 8078 to the nearest thousand
Answer:
The answer is 8000
Step-by-step explanation:
In 8078 the place value of 8 is thousand and to round to the nearest thousand you must look for the the number with place value thousand and if the number to the right is 5 or more then you add 1 to the number with place value thousand then change the other number(s) to zero(s).
In this case the number to the right of 8 is 0 so you add nothing to 8 = 8000
Your friend deposits $8500 in an investment account that earns 2.8% annual interest. What is the balance after 8 years when the interest is compounded quarterly? 1
I believe the balance would be $10,601.42
Hopefully that is the right answer
Use principle of substitution to prove that DeMorgan's theorem with two variables
A+B
=
A
ˉ
B
ˉ
can be applied to three-variable case
A+B+C
=
A
ˉ
B
ˉ
C
ˉ
4.5. Use principle of duality to prove following expression A+
A
ˉ
B=A+B
4.4 using the principle of substitution, we can conclude that \(\overline{A+B+C} = \bar{A}\bar{B}\bar{C}.\)
4.5 we have shown that A+\(\bar{A}\)B = A+B using the principle of duality
To prove that DeMorgan's theorem with two variables \(\overline{A+B} = \bar{A}\bar{B}\) can be applied to the three-variable case \(\overline{A+B+C} = \bar{A}\bar{B}\bar{C}\), we can use the principle of substitution.
Starting with the three-variable expression \(\overline{A+B+C}\), we can apply DeMorgan's theorem for two variables to the expression A+B+C:
\(\overline{A+B+C} = \overline{(A+B)+C}\)
Expanding the expression inside the complement:
\(\overline{(A+B)+C} = \overline{A+B} \cdot \overline{C}\)
Now, we can apply DeMorgan's theorem for two variables to \(\overline{A+B}\):
\(\overline{A+B} \cdot \overline{C} = \bar{A}\bar{B} \cdot \overline{C}\)
Finally, using the principle of substitution, we can conclude that \(\overline{A+B+C} = \bar{A}\bar{B}\bar{C}.\)
To prove the expression A+\(\bar{A}\)B = A+B using the principle of duality, we can start with the given expression and apply DeMorgan's theorem:
A+\(\bar{A}\)B
Using DeMorgan's theorem, we can write \(\bar{A}\)B as \(\overline{\bar{A} + B}\):
\(A+\bar{A}B = A + \overline{\bar{A} + B}\)
Now, we can simplify the expression using the principle of duality:
A + \(\overline{\bar{A} + B}\) = A + B
Therefore, we have shown that A+\(\bar{A}\)B = A+B using the principle of duality.
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Whats is the value of x in the equation 1.5(x+4)-3=4.5(x-2)
Answer:
Step-by-step explanation:
1.5 (x+4)-3=4.5(x-2)=
1.5x+6-3=4.5x-9=
1.5x+3=4.5x-9=
1.5x-4.5x=-3-9=
-3x=-12
x=4
Answer:
x=4
Step-by-step explanation:
1.5(x+4)-3=4.5(x-2)
-Use distributiive prop. to simplify
1.5x+6-3=4.5x-9
-Simplify 6-3
1.5x+3=4.5x-9
-Subtract 1.5x from both sides
3=3x-9
-Isolate the x's by subtracting 9 from both sides
12=3x
-divide by 3
4=x
:) ur welcome
26. Pauline's health club has an enrollment fee
of $175 and costs $35 per month. Total cost as a
function of number of membership months
is shown in the graph.
a. Write an equation that represents the total cost
as a function of months.
b. Identify the slope and y-intercept and describe
their meanings.
C. Find the cost of one year of membership.
Cost ($)
250
200
150
100
50
0
Melanie is given two hours to complete a science test that has two sections. If she takes forty-three minutes to complete the first section, how many minutes does she have remaining on the second section?
Type a numerical answer only no words, symbols, or variables.
She have 1 hour 17 minutes remaining for the second section.
what is total time ?
Time can be defined as an ongoing and continuous sequence of events that occur in succession, from past through the present, and to the future. Time is used to quantify, measure, or compare the duration of events or the intervals between them, and even, sequence events.
Given:
Total time : two hours
Time taken to complete the first section = forty-three minutes
Now , minutes she have remaining on the second section
= Total time - Time taken to complete the first section
= 2 hours - 43 minutes
= 1 hour 17 minutes
Hence , she have 1 hour 17 minutes remaining for the second section.
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Create ABC by drawing AC. AC represents the foreman’s line of sight to the top of the landfill. What is m
Where the above is given, the required angle m∠BAC = 45°.
In triangle ABC. AC represents the foreman’s line of sight to the top of the landfill. Landfill height is BC
What is triangle?The triangle is geometric shape which includes 3 sides and sum of interior angle should not grater than 180°
According to conditions angle b = 90°
The sum of angles of a triangle= 180°
That is a + b + c = 180
Therefore, c = a
a = (180 - b)/2
= (180 - 90) / 2
= 90 / 2
= 45°
Hence, the required angle m∠BAC = 45°
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Full Question:
Although part of your question is missing, you might be referring to this full question:
Question 1 Create Triangle ABC by drawing AC. Segment AC represents the foreman’s line of sight to the top of the landfill. What is Angle m BAC?
8
Solve each of the equations below and classify them based on their solution.
DRAG & DROP THE ANSWER
No Solution
-82-30 = -112
One Solution
by = -6y - 12
-32 = 8 - 2
- 5n = 3 - 5n
Infinitely many Solution
SHOW HINT
Answer:
is this helpful or do i need to add more because this is all i could figure out :/
Step-by-step explanation:
one solution = -82 - 30=- 112
many solution = 6y - 12
no solution = -5n = 3 - 5n
infinite solution = -32 = 8 - 2
hope this helps
Find the slope of the tangent line to the given polar curve at the point specified by the value of θ.
r = cos(θ/3)
θ = π
Answer:
To find the slope of the tangent line to the polar curve r = cos(θ/3) at the point specified by θ = π, we need to first find the derivative of r with respect to θ, and then evaluate it at θ = π.
We can use the chain rule to find the derivative of r with respect to θ:
dr/dθ = d/dθ(cos(θ/3)) = -(1/3)sin(θ/3)
Next, we can evaluate this expression at θ = π:
dr/dθ|θ=π = -(1/3)sin(π/3) = -(1/3)(sqrt(3)/2) = -sqrt(3)/6
This gives us the slope of the tangent line to the polar curve r = cos(θ/3) at the point where θ = π. Therefore, the slope of the tangent line is -sqrt(3)/6.
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The volume of the figure, round to the nearest hundredth.
Answer: Imma need a picture to find the volume love.
Step-by-step explanation:
help meeeeeeeeeeeeeee pleaseeeeeee
Answer: Width = 4.7 meters, Length = 6.7 meters
Step-by-step explanation:
Let the width be \(w\). It follows that the length is \(w+2\).
\(w(w+2)=32\\\\w^2+ 2w-32=0\\\\w=\frac{-2 \pm \sqrt{2^2 -4(1)(-32)}}{2(1)}\\\\w \approx 4.7 \text{ } (w > 0)\\\\\implies w+2 \approx 6.7\)
What is the domain of function f?
Answer:
The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes. (In grammar school, you probably called the domain the replacement set and the range the solution set.
Answer:
B. -∞ \(\leq\) x \(\leq\) ∞
Step-by-step explanation:
The domain of a graph is all the x-values it covers. Since this graph does not have any arrows at its end or beginning points, we can assume it goes on forever. Lines that go on forever always have an infinite domain.
What rhetorical device is used
in the following passage from
Thomas Paine's "The Crisis,
No.1"?
Sec. 7: The far and the near,
the home counties and the
back...
A metaphor
B. allusion
C. contrast
D. logical appeal
The rhetorical device that is used in the following passage from Thomas Paine's pamphlet "The Crisis, No.1"? Sec. 7 are anaphora and parallelism.
What is the rhetorical device in the pamphlet?The passage from Thomas Paine's pamphlet "The Crisis, No.1"? states "The far and the near, the home counties and the back, the rich and the poor, will suffer or rejoice alike. The heart that feels not now, is dead: the blood of his children will curse his cowardice, who shrinks back at a time when a little might have saved the whole, and made them happy."
The rhetorical device used in this quote is anaphora, the repetition of the word "the." Additionally, the phrase "will suffer or rejoice alike" and the mention of "the heart that feels not now" are examples of parallelism, where the writer is emphasizing the idea of universality by presenting it in a balanced and repetitive manner.
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5x
4
3x
2
Complete the area model to identify the quadratic expression it represents.
Answer:(3x) + 2(5x) + 4(3x) + (4)(2)area = 15x² + 10x + 12x + 8area
Step-by-step explanation:
Define the length and the width of the rectanglelength = 5x + 4width = 3x + 2
Determine the areaarea = length × widtharea = (5x + 4) (3x + 2)area = (5x)(3x) + 2(5x) + 4(3x) + (4)(2)area = 15x² + 10x + 12x + 8area = 15x² + 22x + 8
The area of the rectangle is (15x² + 22x + 8) units²
Tyler and trey are saving money. Tyler has saved $27 more than trey. Together they saved $85. Define a variable and write an equation that can be used to determine the amount of money Tyler and trey have saved
Let
x = Trey's savings
x + 27 = Tyler's savings
The sum of their savings is $85, which can be translated to
(x) + (x+27) = 85
Simplify the equation
x + x + 27 = 85
2x + 27 = 85
A man brings two gallons of water on a camping trip. He drinks 3/4 of a gallon the first day. The next
day, he drinks 2/3 of what he had left. How much water does he drink the second day?
A man drinks 5/6 of a gallon on the second day.
What is multiply?Multiplication is an arithmetic operation that involves combining two or more numbers to find their product. It is the process of repeated addition or counting in equal groups.
According to question:The man starts with 2 gallons of water. On the first day, he drinks 3/4 of a gallon, leaving him with:
2 - 3/4 = 1 1/4 gallons
On the second day, he drinks 2/3 of what he had left from the first day, which is 1 1/4 gallons. To find out how much he drinks, we can multiply 1 1/4 by 2/3:
1 1/4 * 2/3 = (5/4) * (2/3) = 10/12 = 5/6
Therefore, he drinks 5/6 of a gallon on the second day.
To summarize:
On the first day, he drinks 3/4 of a gallon.At the end of the first day, he has 1 1/4 gallons left.On the second day, he drinks 5/6 of a gallon.To know more about multiply visit:
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Help with these 2 questions please
Answer:
Step-by-step explanation:
Surface area of the triangular prism = 2B + ph
B is the base area = 11 * 14
B = 154 sq. cm
p is the perimeter of the base =
What is the 10th Amendment say?.
According to 10th Amendment it defines the Federal Government only has those powers delegated in the Constitution .
No law establishing a particular religion, forbidding its practice, restricting press or speech freedom, or restricting the right of the people to peacefully assemble and petition the government for redress of grievances may be passed by Congress.
An amendment is a change or improvement that essentially maintains the integrity of the original document. The Bill of Rights is the collective name for the first ten Amendments of the Constitution. It describes Americans' constitutional rights in relation to their government. People are granted civil liberties and rights, such as the freedom of speech, the press, and religion.
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