we have the equation
\(2x²+2y²-6x+4y+1=0\)Group similar terms and move the constant term to the right side
\((2x^2-6x)+(2y^2+4y)=-1\)Factor the leading coefficient on both terms of the left side
\(2(x^2-3x)+2(y^2+2y)=-1\)Complete the square twice
\(2(x^2-3x+1.5^2)+2(y^2+2y+1)=-1+4.5+2\)Rewrite as a perfect square
\(2(x-1.5)^2+2(y+1)^2=5.50\)Divide both sides by 2
\(\begin{gathered} (x-1.5)^2+(y+1)^2=\frac{5.50}{2} \\ \\ (x-1.5)^2+(y+1)^2=2.75 \end{gathered}\)we have the equation of a circle
therefore
The answer is a circlei will give Brainiest if your right
a boat traveled 27 miles in 2 hours at this rate how many miles will the boat travel in 1/2
Compare the investment below to an investment of the same principal at the same rate compounded annually.
principal: $5,000, annual interest: 9%, interest periods: 4, number of years: 18
After 18 years, the investment compounded periodically will be worth $? more than the investment compounded annually.
(Round to two decimal places as needed.)
After 18 years, the investment compounded periodically (quarterly) will be worth $1,230.23 more than the investment compounded annually.
What is compounded interest?Compounded interest refers to the interest system that charges interest on both principal and accumulated interest.
The period of compounding in a year determines the worth of the future value.
The future value can be ascertained using an online finance calculator as follows:
Interest periods: = 4 times yearly (Quarterly)
Principal = $5,000
Annual interest rate = 9%
Number of years: 18
N (# of periods) = 72 quarters (18 years x 4)
I/Y (Interest per year) = 9%
PV (Present Value) = $5,000
PMT (Periodic Payment) = $0
Results:
Future Value (FV) = $24,815.83
Total Interest = $19,815.83
Interest periods: = Annually
N (# of periods) = 18 years
I/Y (Interest per year) = 9%
PV (Present Value) = $5,000
PMT (Periodic Payment) = $0
Results:
Future Value (FV) = $23,585.60
Total Interest = $18,585.60
Difference in Future Values $1,230.23 ($24,815.83 - $23,585.60)
Thus, an investment compounded periodically earns more than an investment compounded annually.
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How much would you need to deposit in an account now in order to have $2000 in the account in 15 years? Assume the account earns 3% simple interest. Round your answer to the nearest cent.
What is the equation of the line in slope-intercept form?
-2
=-=x+4
v=-15)+4
5
2
V=--x-4
5
2
V=--x+4
The equation of the line in slope-intercept form is y = 3x + 4.
We can use the combination formula to determine how many different packages can be created from a set of 24 crayons with 36 different colours.
The formula for the mixture is provided by:
n C r equals n!/r! (n-r)!
where r is the number of items we want to choose, n is the total number of items, and! stands for the factorial of a number, which is the sum of all positive integers up to that number.
In this instance, we are trying to determine how many various methods there are to choose 24 crayons from a set of 36 colours, regardless of the sequence in which they are chosen. Consequently, we can apply the following combination formula:
36 C 24 = 36! / (24! * 12!)
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divide 72 in ratio 3:4:5
The number who needs to be separated into a ratio = 72
Total number of parts = 3 + 4 + 5
= 12 parts
Each part = 72 ÷ 12
= 6
Then 3 parts = 3 × 6 = 18
4 parts = 4 × 6 = 24
5 parts = 5 × 6 = 30
Then , the ratio will be , 18 : 24 : 30
Therefore , 72 in the ratio 3:4:5 will be = 18 : 24 : 30 .
The depth of a local lake averages 38 ft, which is represented as |−38|. In February, it measured 6 ft deep, or |−6|, and in July, it was 25 ft deep, or |−25|. What is the difference between the depths in February and July?
A32 feet
B 31 feet
C 19 feet
D 13 feet
The difference between the depths in February and July is 31 feet.
How to measure depth?The method of measuring depth depends on what we are trying to measure the depth of. Here are some general methods for measuring different types of depth:
Depth of water: The depth of water can be measured using a sounding device such as a sonar or a simple depth gauge. A sonar uses sound waves to determine the distance from the water's surface to the bottom. A depth gauge is a simple device that measures the distance from the surface of the water to the bottom using a weight and a line.
Depth of a hole: The depth of a hole can be measured using a tape measure or a ruler. Simply insert the measuring device into the hole and measure the distance from the top of the hole to the bottom.
Depth of a trench: The depth of a trench can be measured using a measuring tape or a surveyor's level. Place the measuring device at the edge of the trench and measure the distance from the top of the trench to the bottom.
Depth of a pool: The depth of a pool can be measured using a pool depth marker or by using a measuring tape. A depth marker is usually located on the side of the pool and indicates the depth at various points. Alternatively, you can use a measuring tape to measure the distance from the surface of the water to the bottom of the pool.
Depth of a well: The depth of a well can be measured using a well sounder or a tape measure. A well sounder is a device that sends a signal down the well and measures the time it takes for the signal to bounce back. The time it takes is then used to calculate the depth of the well. Alternatively, a tape measure can be used to measure the distance from the surface of the water to the bottom.
Given, In February, it measured 6 ft deep, or |−6| and in July, it was 25 ft deep, or |−25|.
The difference between the depths in February and July is:
|−6| − |−25| = 6 − (−25) = 6 + 25 = 31
Therefore, the correct choice is B) 31 feet.
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What is 4 divided by 520
in the figure d||m. what is the value of x?
Step-by-step explanation:
2X - 20 =86 ( Alternate angles are equal)
2X = 86 - 20
2X = 66
X = 33
Compare 8 and -11. Which of the following is true?
O A. 18> T-111 and 8 < -11
B. 188 = 1-11 and 8 >-11
C. 18[<1-11 and 8 >-11
D. 18] > 1-11 and 8 >-11
please help
Please help me please help please please help me please
Answer:
i h0nestly dont know bro i wish i could help sorry .
Select the correct answer.
Solve the following equation for x.
x2 - 36 = 0
A.
x = 1; x = -36
B.
x = -1; x = 36
C.
x = -6; x = 6
D.
x = -18; x = 18
Answer: D
Step-by-step explanation:
2x-36=0
+36 +36
___________
2x=36
x=18
Even if one equation, -18 was not solved, you can easily cross out the ones without 18 and get the answer.
Point b is at (1,1) on a graph. transformed using matrix A
In the above scenario, The point that B is transformed to are coordinates (10, 6). This means that it is translated to the right by 9 units and upwards by 5 units.
In order to derive the new location of point B after the transformation by matrix A, we need to perform matrix multiplication of A with the column vector representing point B.
\(\left[\begin{array}{cc}8&2\\7&1\\\end{array}\right]\) = \(\left[\begin{array}{cc}1\\1\\\end{array}\right]\)
\(\left[\begin{array}{cc}(8 * 1) + &(2 *1)\\(7 *1)&(1 *1)\\\end{array}\right]\) = \(\left[\begin{array}{cc}10\\6\\\end{array}\right]\)
As a result, the converted point B is situated at (10, 6). As a result of the transformation provided by matrix A, point B has been translated to the right by 9 units (from x = 1 to x = 10) and upwards by 5 units (from y = 1 to y = 6).
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Select the correct answer. Simplify the following expression.
The simplified exponential expression for this problem is given as follows:
D. 1/49.
How to simplify the exponential expression?The exponential expression for this problem is defined as follows:
\(7^{-\frac{5}{6}} \times 7^{-\frac{7}{6}}\)
When two terms with the same base and different exponents are multiplied, we keep the base and add the exponents.
Hence the exponent is given as follows:
-5/6 - 7/6 = -12/6 = -2.
The negative exponent is moved to the denominator, hence:
1/7² = 1/49.
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which equation represents the slope intercept form of the line when the y intercept is (0,-6) and the slope is -5
The values into the slope-intercept form, we have y = -5x - 6
The slope-intercept form of a linear equation is given by:
y = mx + b
where 'm' represents the slope of the line, and 'b' represents the y-intercept.
In this case, the y-intercept is (0, -6), which means that the line crosses the y-axis at the point (0, -6).
The slope is given as -5.
Therefore, substituting the values into the slope-intercept form, we have:
y = -5x - 6
This equation represents the line with a y-intercept of (0, -6) and a slope of -5.
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Solve this 6 - 4(3 - 6x) + 12x
Answer:
Step-by-step explanation:
What is the value of 22 + x ÷ 11 when x = −176?
Answer:
6
Step-by-step explanation:
22 + -176 ÷ 11
b i division m a s
-176 ÷ 11 = -16
22 - 16 = 6
Answer:
points hehehhehehehe points hehehehehhehehehehehehe points hehehehe
Step-by-step explanation:
Find the probability that a randomly selected point within the square falls in the red shaded square
The probability that a randomly selected point within the square falls in the red shaded square is 1/16
What is probability?A probability is a number that reflects the chance or likelihood that a particular event will occur. The certainty of an event to occur is 1 and it is 100% in percentage.
Probability = sample space /total outcome
sample space is the area of the red shaded square and the total outcome is the big square.
Area of red shaded square = 1 × 1 = 1unit²
area of the big square = 4 × 4 = 16 units²
Therefore the probability that a point selected falls on the red shaded square
= 1/16
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The diagonal of a square is x units. What is the area of the square in terms of x?
3x square units
x? square units
2x square units
x square units
Answer:
(x^2)/2
Step-by-step explanation:
If the diagonal is x, then the side length is sqrt(x^2/2)
That makes the area (x^2)/2
Answer:
c is wrong thats what i had picked
Step-by-step explanation:
. 1-115. The longer leg of a right triangle is three inches more than three times the length
of the shorter leg. The area of the triangle is 84 square inches. Find the perimeter of the
triangle.
Remember to put the unit of measurement on your answer.
The perimeter of the triangle will be 56 inches.
What is a right-angle triangle?The triangle in which one angle is at 90 degrees and the two sides of the triangle are at 90 degrees is called a right-angled triangle. A triangle is a two-dimensional shape having three sides the angle suspended by the triangle is 180 degrees.
Given that the longer leg of a right triangle is three inches more than three times the length of the shorter leg. The area of the triangle is 84 square inches.
The perimeter of the triangle is calculated by knowing the length of all three sides of the triangle;-
Three sides are:-
Shorter side = s
Longer side = 3s + 3
Hypotenuse =?
H = √ ( s² + ( 3s + 3 )²
H = √ ( s² + 9s² +18s + 9 )
H = √ ( 10s² + 18s + 9 )
Form the area the value of s will be calculated as below:-
Area = ( 1 / 2 ) x s x (3s + 3 )
168 = 3s² + 3s
3s² + 3s - 168 = 0
s² + s -56 = 0
s² + 8s - 7s -56 =0
s ( s + 8 ) -7( s+ 8 ) = 0
s = 7 and -8 ignore negative
Three sides are:-
Shorter = s = 7 inches
Longer = 3s + s = 3 x 7 + 3 = 24 inches
Hypotenuse = √ ( 10( 7)² + 18 x (7 ) + 9 )
Hypotenuse = √ ( 490 + 126 + 9 0
Hypotenuse = 25 inches
Perimeter = 7 + 25 + 24 = 56 inches
Therefore, the perimeter of the triangle will be 56 inches.
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rogress bar may be uneven because questions can be worth more or less (including zero) depending on your
Which of the following equations has the solution x = all real numbers?
O. 5(3x) + 6x = 3x + 15 + 2x
5(3x).+ 7x = 3x + 15 - x
5(3x) + 7x = 3x + 10 - x
5(3x) + 7x = x + 15 - 3x
The equations that has the solution x = all real numbers is 5(3x)+ 7x = 3x + 15 - x and 5(3x) + 7x = 3x + 10 - x,
What is meant equation?Algebraically speaking, an equation is a statement that shows the equality of two mathematical expressions. For instance, the two equations 3x + 5 and 14, which are separated by the 'equal' sign, make up the equation 3x + 5 = 14.
A formula that expresses the connection between two expressions on each side of a sign. Typically, it has a single variable and an equal sign.
Here given equations,
5(3x) + 6x = 3x + 15 + 2x
15x + 6x = 3x + 15 + 2x
15 x + 6x - 3x -2x = 15
16 x = 15
x = 15/16
5(3x).+ 7x = 3x + 15 - x
15 x + 7x = 3x + 15 - x
15 x + 7x - 3x + x = 15
22x - 3x + x = 15
20 x = 15
x = 15/20
x = 3/4
5(3x) + 7x = 3x + 10 - x
15x + 7x - 3x + x = 10
20x = 10
x = 10/20
x = 1/2
5(3x) + 7x = x + 15 - 3x
15x +7x - x + 3x = 15
24x = 15
x = 15/24
x = 5/8
Therefore the equations that has the solution x = all real numbers are :
5(3x).+ 7x = 3x + 15 - x and 5(3x) + 7x = 3x + 10 - x .
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A tank contains 5832 litres of water. Each day one-third of the water in the tank is removed and not replaced. How much water remains in the tank at the end of 6 days? [Hint: answer 512 litres] Show me the steps
Here is your answer.
A tank contains 5832 litres of water.
Total amount of water in tank = 5832 litres.
Each day one-third of the water in the tank is removed and not replaced.
Since one third of the water is removed for six days.
1st day = 1/3rd of 5832 litres is removed
\( = \dfrac{5832}{3} = 1944\)
Amount of water left = 5832 - 1944 = 3888 litres
2nd day = 1/3rd of 3888 litres is removed
\( = \dfrac{3888}{3} = 1296 \)
Amount of water left = 3888 - 1296 = 2592 litres
3rd day = 1/3rd of 2592 litres is removed
\( = \dfrac{2592}{3} = 864 \)
Amount of water left = 2592 - 864 = 1728 litres
4th day = 1/3rd of 1728 litres is removed
\( = \dfrac{1728}{3} = 576 \)
Amount of water left = 1728 - 576 = 1152 litres
5th day = 1/3rrd of 1152 litres is removed
\( = \dfrac{1152}{3} =384 \)
Amount of water left = 1152 - 384 = 768 litres
6th day = 1/3rrd of 768 litres is removed
\( = \dfrac{768}{3} = 256 \)
Amount of water left = 1768 - 256 = 512 litres
So, 512 litres water remains in the tank at the end of 6 days
On Saturday, Mrs. Colton buys 2
soda cans for $1.50. On Sunday.
she spends $2.52 on a 4-pack.
Which is a better deal?
a study was conducted to help determine which of the top two political parties the general population would prefer to vote for in the up-coming election. in determining whom to include in the sample, two stages were involved. at the first stage, a random sample of 50 individuals was selected from each of the 20 regions in the country and then pooled into a combined sample of 1,000. at the second stage, these 1,000 individuals were divided into 5 income-level groups, and a random sample of 50 from each group was selected. Select all of the statements regarding the sampling design in the above scenario that are true:
The study does not involve a voluntary response.
The first stage creates a stratified random sample.
The whole study creates a multistage random sample.
The second stage involves simple random sampling only.
The true statements are the study does not involve a voluntary response, the first stage creates a stratified random sample and the whole study creates a multistage random sample.
In the given question, the study done ideally creates a multistage random sample. There are two parts to the sampling process for the study in the given question. Initially, a combined sample of thousand of individuals was assembled by combining a randomly selected sample of fifty individuals, that were from each of the 20 regions of each nation. The next step was to choose a random sample of fifty individuals from every one of the five income groups represented among those 1,000 individuals.
Additionally, because the study doesn't entirely rely on a discretionary answer, individuals were picked by a random sample approach rather than explicitly or through self-selection. A stratified random sample is also created during the initial step. This shows that a random sample was drawn from each subgroup after the dataset was separated into groups.
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What is the domain of f(x) = 5x – 7?
{x | x > –7}
{x | x < –7}
{x | x > 0}
{x | x is a real number}
Answer:
all real number {x | x is a real number}
What should be the third row in the following series of shapes
Answer:
The answer is number 2
The salaries, in thousands of dollars, of all individuals employed at an oceanic deanup company are depicted in the boxplot below 50 60 70 80 What is the interquartile range (IQR) of the salaries? (4 points) 10 Ob 20 40 od 60 120
Previous question
The interquartile range (IQR) of the salaries = 20
What is Interquartile range (IQR) ?In descriptive statistics, the interquartile range is a measure of statistical dispersion, or the spread of the data. The middle 50%, fourth spread, or H-spread are further names for the IQR. It is described as the discrepancy between the data's 75th and 25th percentiles.
According to the given information
We are given that
Q1=50 and Q3=70
Inter quartile range =IQR
= Q3 -Q1
= 70 - 50
= 20
The interquartile range (IQR) of the salaries = 20
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ill mark brainlist plss help
Answer: meter
Step-by-step explanation:
A certain protein is present in everyones saliva, but Covid 19 increases its concentration. An instant test is develeped based on this measuring this protein: For people without covid 19, the protein has a concentration with a mean of 9 units/ml, and a standard deviation of 4 units/ml. For people with covid 19 the protein has a concentration 23 units/ml and standard deviation of 2 unit/ml Suppose we set a cutoff value of the test at 19 units/ml. So above 19 units/ml they are considered to have covid 19, and below 19 units they are not. i) Assuming the two distributions are normal a) What is the probability of falsely labelling a healthy person as having covid 19? *(show work on all problems) b) What is the probability of correctly saying a person does have covid 19 when they do? ii) Using part i calculate the probability of having Covid 19 if the test says you have it if a) The background proportion of people with active covid 19 is .01 c)The background proportion of people with active covid 19 is .6 iii)Using part i, calculate the probability of having Covid 19 if the test says you dont have it if a) The background proportion of people with active covid 19 is .01 c)The background proportion of people with active covid 19 is .6
Answer:
9999
Step-by-step explanation:
IMPOSSIBLE
What is the solution to the inequality 3/5 + y > or equal to 11/15
Answer:
y ≥ 2/15
HOPE THIS HELPS :)