1. Set up a ratio:
7 tagged / 350 fish = 250 tagged / x fish
Solve for x:
x = (350 * 250) / 7
x = 12,500 fish
2. Divide number of boys by the population ratio:
450 / 2/5 = (450 *5) /2 = 2250 / 2 = 1125 total students.
3. 4 quarters = $1, so they have 24 quarters total.
The ratio 3:5 means for every 3 quarters there are 5 dimes.
24 quarters / 3 = 8
8 x 5 = 40 dimes.
(1) The population of fish in the False river is 12500.
(2) There are 1125 total number of students in the school .
(3) There are 40 dimes in the bag.
(1) Number of fish tagged by Louisiana biologists = 250
On the next day a sample was collected from the False river
The number of fish in the sample = 350
Number of tagged fish in the sample = 7
Let the population of fish in the False river = P
Takin the ratio we can
[tex]\rm \dfrac{7}{350}= \dfrac{250}{P} \\\\P = (250)(350)/(7)\\P = 12500[/tex]
So the population of fish in the False river = 12500
(2) The number of boys in the school = 450
Let the total number of students in the school be B
According to the given condition
[tex]\rm \dfrac{2}{5}\times B = 450\\\\B = (450\times 5) /2 \\B = 2250/2 =1125[/tex]
So the total number of students in the school = 1125
(3) Let the number of dimes in the bag be x
According to the given condition we can write
[tex]\rm \dfrac{Number\; of\; quarters }{Number\; of\; dimes } = \dfrac{3}{5} ........(1)[/tex]
Also it is given that there are $6 in quarters in the bag.
$1 = 4 quarters
So $6 has [tex]\rm 4\times 6 = 24 \; quarters[/tex]
So we can put this value in equation (1)
[tex]\dfrac{24}{x} =\dfrac{3}{5} \\\\x = 40 dimes[/tex]
So we can conclude that there are 40 dimes in the bag.
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Tony made this diagram
of his vegetable garden. What is the total area?
Explain your reasoning.
Answer:
The total area of Tony's vegetable garden is 124 square feet
Step-by-step explanation:
The total area of Tony's vegetable garden is composed by three rectangles.
1st rectangle
Length = 10 feet
Width = 6 feet (14 - 8)
Area = 6 * 10 = 60 square feet
2nd and 3rd rectangles are equals
Length = 4 feet
Width = 8 feet (14 - 6)
Area = 2 * 4 * 8 = 2 * 32 = 64 square feet
Total area
Area of the three rectangles
60 + 64 = 124 square feet
The total area of the vegetable garden is 124 ft.
A rectangle is a quadrilateral in which opposite sides are parallel and congruent to each other.
The area of a rectangle is the product of its length and width. It is given by:
Area = length * width
Area of the vegetable garden = (8 ft * 4 ft) + (8 ft * 4 ft) + (10 ft * (14 - 8)ft)
Area of the vegetable garden = 32 ft + 32 ft + 60 ft = 124 ft.
Therefore the total area of the vegetable garden is 124 ft.
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Find the area of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximations).
The question focuses on Mathematics, specifically Geometry and Calculus. It requires calculating the area of geometric figures especially circles and disks in terms of π, often via the formula A=πr² or integration.
Explanation:From the question, we are required to find the area of shaded parts, which essentially associates with geometric figures and their properties in Mathematics. Specifically, this question appears to focus on areas related to circles and spheres, as it mentions calculations in terms of π, radius (r) and certain formulas like A=πr², which is the formula for the area of a circle.
When asked to express something in terms of π, it typically means leaving the answer as multiples of π, rather than using its decimal equivalent. So for instance, if we calculated the area of a circle with a radius of 3 using A=πr², we would say that the area is 9π.
Another crucial information that surfaced in the materials provided is the area calculation using integration, which involves adding up the individual areas of 'thin rings' from r=0 to r=R where R is the total radius of the disk or circle. This is an important aspect of finding areas under curves or finding areas enclosed by curves in Calculus.
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The area of the shaded regions is [tex]\(8\pi - 8\)[/tex] square centimeters.
To find the area of the shaded regions in the circle with the inscribed triangle, we'll follow these steps:
1. Calculate the Area of Sector AOC:
- The sector's central angle is 90° because triangle AOC is right-angled at C.
- The area of a sector is [tex]\( \frac{\theta}{360} \times \pi \times r^2 \)[/tex], where [tex]\( \theta \)[/tex] is the central angle and [tex]\( r \)[/tex] is the radius.
- Here, [tex]\( r = 4 \) cm and \( \theta = 90° \).[/tex]
- So, the area of sector AOC is [tex]\( \frac{90}{360} \times \pi \times 4^2 = \pi \times 4 \) cm^2.[/tex]
2. Calculate the Area of Triangle AOC:
- The area of a triangle is [tex]\( \frac{1}{2} \times \text{base} \times \text{height} \).[/tex]
- For triangle AOC, the base and height are both equal to the radius, which is 4 cm.
- So, the area of triangle AOC is [tex]\( \frac{1}{2} \times 4 \times 4 = 8 \)[/tex] cm².
3. Calculate the Area of the Shaded Segment on the Opposite Side:
- Subtract the area of triangle AOC from the area of sector AOC.
- This gives us the area of the shaded segment: [tex]\( \pi \times 4 - 8 \)[/tex] cm².
Combining both shaded areas, the total area of the shaded regions is [tex]\( \pi \times 4 + (\pi \times 4 - 8) \)[/tex] cm², which simplifies to [tex]\( 8\pi - 8 \)[/tex] cm². Therefore, the area of the shaded regions is [tex]\( 8\pi - 8 \)[/tex] cm².
Find 2x^2y if x=-1 and y=3
Answer:
6
Step-by-step explanation:
(-1)^2=(-1)(-1)=1
2(1)(3)=2*3=6
2x*2y
Replace x with -1 and y with 3
2(-1) * 2(3)
2*-1 = -2
2*3=6
Now multiply -2 with 6 and it should be -12.
Given an arithmetic sequence with a3=5 and a5=19, find the 24th term.
The 24th term is 152
Step-by-step explanation:
The formula of the nth term of an arithmetic sequence is:
[tex]a_n=a+(n-1)d[/tex] , where
a is the first termd is the common difference between consecutive termsThe third term means n = 3
∵ [tex]a_3=a+(3-1)d[/tex]
∴ [tex]a_3=a+2d[/tex]
∵ [tex]a_3[/tex] = 5
- Equate the right hand sides of the third term
∴ a + 2d = 5 ⇒ (1)
The fifth term means n = 5
∵ [tex]a_5=a+(5-1)d[/tex]
∴ [tex]a_5=a+4d[/tex]
∵ [tex]a_5[/tex] = 19
- Equate the right hand sides of the fifth term
∴ a + 4d = 19 ⇒ (2)
Now we have a system of equations to solve it
Subtract equation (1) from equation (2) to eliminate a
∴ 2d = 14
- Divide both sides by 2
∴ d = 7
- Substitute the value of d in equation (1) to find a
∵ a + 2(7) = 5
∴ a + 14 = 5
- Subtract 14 from both sides
∴ a = -9
The twenty fourth term means n = 24
∵ a = -9 and d = 7
- Substitute the values of a and d in the formula of the nth term
∴ [tex]a_24=-9+(24-1)(7)[/tex]
∴ [tex]a_24=-9+(23)(7)[/tex]
∴ [tex]a_24=-9+161[/tex]
∴ [tex]a_24=152[/tex]
The 24th term is 152
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Jordan bikes at a speed of 8 2/3 mph. How many miles will he bike in:
45 minutes?
Answer:390 miles
Step-by-step explanation:
speed*time=distance (keep that in mind)
8 2/3 is also equal to 26/3
take that number and multiply that by 45 min
45*26/3
that equall 390 miles
(I tried my best, I might be wrong)
Answer:
13/2
Step-by-step explanation:
Keep in mind that speed*time=distance
ok so, if you convert 8 2/3 in to a improper fraction you'll get 26/3. Now we have to turn 45 minutes into a fraction so it's easier to multiply, that would be 45/60 because 1 hour has 60 minutes. Now, we would multiply 26/3 and 45/60 and get 78/12. Simplify that and get 13/2
if (m,2m+1) is a solution of the equation 4x +2y=8 then the value of m is
Answer:
m = 0.75
Step-by-step explanation:
Since (m, 2m + 1 ) is a solution of the equation then substituting the values into the equation will make it true, that is
substitute x = m and y = 2m + 1 into the equation, thus
4m + 2(2m + 1) = 8 ← distribute and simplify left side
4m + 4m + 2 = 8
8m + 2 = 8 ( subtract 2 from both sides )
8m = 6 ( divide both sides by 8 )
m = [tex]\frac{6}{8}[/tex] = [tex]\frac{3}{4}[/tex] = 0.75
The highest temperature ever recorded on earth was 136 ferinheit the lowest was -129 ferinheit plot each temperature as an integer on a number line and use absolute value to determine the difference between the two temperatures
Answer:
265 Fahrenheit.
Step-by-step explanation:
It is given that,
Highest temperature ever recorded on earth = 136 Fahrenheit
Lowest temperature = -129 Fahrenheit
We need to plot these temperature as an integer on a number line.
136 is a positive integer. So, it lies 136 units on the right side of zero.
-129 is a negative integer. So, it lies 129 units on the left side of zero.
According to absolute values, |x|=|-x|=x.
Absolute value of 136 and -129 are
[tex]|136|=136[/tex]
[tex]|-129|=129[/tex]
The difference between he two temperatures is
[tex]|136-(-129)|=|136+129|=265[/tex]
Therefore, the difference between he two temperatures is 265 Fahrenheit .
Which other angles could be in that triangle?
The other angles in the isosceles triangle with an angle of 100° will be 40°
Step-by-step explanation:
Lets define an isosceles triangle first.
"An isosceles triangle is a triangle with two equal sides and two equal angles.
Given that an angle of the triangle is 100°
We know that the sum of internal angles of a triangle is 180°
The sum of remaining two angles is:
=180°-100°
=80°
As the triangle is an isosceles triangle, the two angles will be equal.
So the angles will be:
[tex]=\frac{80}{2}\\=40[/tex]
The other angles in the isosceles triangle with an angle of 100° will be 40°
Keywords: Triangle, isosceles triangle
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How can you add 3/10+2/5
Answer:
7/10
Step-by-step explanation:
3/10+2/5=3/10+4/10=7/10
Answer: 7/10
Step-by-step explanation: To add these two fractions together, we start by finding their common denominator.
The common denominator for 10 and 5 will be the least common multiple of 10 and 5 which is 10.
Since 10 already has a 10 in the denominator, it stays the same.
We multiply top and bottom of our second fraction by 2 and we get 4/10.
Now we are adding like fractions so we simply add across the numerators and keep the same denominator.
So, 3/10 + 4/10 = 7/10.
Therefore, 3/10 + 2/5 = 7/10.
answer and explanation please!
The value of x is 58°
Step-by-step explanation:
we can see in the figure that the triangle formed is a right-angled triangle
In a right-angled triangle, one angle is always 90 degrees and the other two angles are complementary i.e. their sum is 90 degrees
So,
Using the axiom
[tex]32 + x = 90\\x = 90-32\\x = 58[/tex]
Hence,
The value of x is 58°
Keywords: Triangles, angles
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If f(x) = x2 + x and g(x) = x - 3, find f(g(7)).
53
32
28
20
Answer:
Step-by-step explanation:
If we are looking for the composition of f(g(7)), we will start at the innermost part of the problem, which is to evaluate g(7). That means that we put 7 in for x in the g function and come up with a solution to that first.
If g(x) = x - 3, then g(7) = 7 - 3 which is 4. Now take that 4 and put it in for x in the f function:
f(4) = [tex](4)^2+4[/tex] which is 16 + 4 which is 20
Therefore, f(g(7)) = 20
Answer:
If we are looking for the composition of f(g(7)), we will start at the innermost part of the problem, which is to evaluate g(7). That means that we put 7 in for x in the g function and come up with a solution to that first.
If g(x) = x - 3, then g(7) = 7 - 3 which is 4. Now take that 4 and put it in for x in the f function:
f(4) = which is 16 + 4 which is 20
Therefore, f(g(7)) = 20
Step-by-step explanation:
Simplify (3a^n)^3 times (1/3a^n)^3
Answer:
3
Step-by-step explanation:
From the given indices
(3a^n)^3 X (1/3a^n)^3
We can rewrite the equation to be
(3a^n)^3 X (3a^-n) ^3
We father simplify;
3a^3n X 3a^-3n
Since we have same base, we add their relative powers, we solve thus,
3a^(3n-3n)
= 3a^0
= 3 X a^0 = 3 X 1
=1
y= -5x+6 in standard form
Answer:
5x+y=6
Step-by-step explanation:
y=-5x+6
y-(-5x)=6
y+5x=6
5x+y=6
The equation in standard form can be written as; 5x+y=6
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Suppose the considered polynomial is of only one variable. Then, the standard form of that polynomial is the one in which all the terms with higher exponents are written on left side to those which have lower exponents.
We have given the equation as;
y=-5x+6
Now,
y-(-5x)=6
y+5x=6
The equation in standard form can be written as;
5x+y=6
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Which of the following is NOT equivalent to the other three?
A
0.15
B
1520
C
75%
D
0.75
i need this for my finals ill give you brainlest
Answer:
The answer is A I just too the test
Step-by-step explanation:
Answer:
A) 0.15
Step-by-step explanation:
Because 15/20=3/4=75/100=75%=0.75.
fifteen friend want to share 3 watermelons equally. what fraction of a watermelon will each friend get?
Answer: 3/15 or 1/5
Step-by-step explanation:
Each person will get 1/15 of each watermelon so 3/15 of watermelon that can be simplified to 1/5
Final answer:
Each of the fifteen friends will receive ⅔ of a watermelon when 3 watermelons are shared equally among them.
Explanation:
If fifteen friends want to share 3 watermelons equally, we need to divide the total number of watermelons by the number of friends to find out what fraction of a watermelon each friend will get.
To find the answer, you start with 3 watermelons and divide them by 15 friends, which is:
3 watermelons ÷ 15 friends = ⅔ of a watermelon per friend.
Thus, each friend will get ⅔ of a watermelon.
if the velocity of the car at t=2 is 4, find the velocity equation
Answer:
Velocity equation
[tex]v=\frac{d}{t}[/tex]
Step-by-step explanation:
Given:
Velocity of the car v = 4 units
and time t = 2 seconds
Let d = distance
Find the velocity equation.
The equation of the velocity is given below.
[tex]velocity=\frac{distance\ travelted}{time\ to\ distance\ travel}\ unit/sec[/tex]
[tex]v=\frac{d}{t}[/tex]
The above equation says, the distance travelled in t times is called velocity.
The unknown value in given question is distance. so, we find distance by given value.
[tex]d = v\times t[/tex]
[tex]d = 4\times 2[/tex]
[tex]d = 8\ units[/tex]
Therefore, the distance travelled by car is 8 units.
Formula for velocity: V = d/t
V = velocity
d = distance
t = time traveled
We are given the variables t = 2 and v = 2.
Substitute these values into the formula.
4 = d/2
Solve for d (d = distance).
4 = d/2
4 * 2 = d/2 * 2
8 = d
Therefore, the car traveled a distance of 8 units.
Best of Luck!
find the equation of a straight line passing through the point (3,3) which is perpendicular to the line y=-1/2x-4
Answer:
y = 2x - 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - [tex]\frac{1}{2}[/tex] x - 4 ← is in slope- intercept form
with slope m = - [tex]\frac{1}{2}[/tex]
Given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-\frac{1}{2} }[/tex] = 2, thus
y = 2x + c ← is the partial equation
To find c substitute (3, 3) into the partial equation
3 = 6 + c ⇒ c = 3 - 6 = - 3
y = 2x - 3 ← equation of perpendicular line
The equation of the line passing through (3, 3) and perpendicular to y = -1/2x - 4, is y = 2x - 3.
To find the equation of a straight line passing through the point (3, 3) which is perpendicular to the line y = -1/2x - 4, follow these steps:
Determine the slope of the given line. The slope of y = -1/2x - 4 is -1/2.Find the slope of the perpendicular line. The slope of the perpendicular line is the negative reciprocal of -1/2, which is 2.Use the point-slope form of the equation of a line, y - y₁ = m(x - x₁), where (x₁, y₁) is the point (3, 3) and m is the slope (2).Substitute the values 2 for m and (3, 3) for (x₁, y₁): y - 3 = 2(x - 3).Simplify the equation: y - 3 = 2x - 6.Rewrite it in slope-intercept form: y = 2x - 3.Therefore, the equation of the line passing through the point (3, 3) and perpendicular to the line y = -1/2x - 4 is y = 2x - 3.
р
с
о
1.
Convert the following equation to standard form: y = -3x + 2
— у = 2
3х + y = 2
о 3х + y = -2
о — 3 — у. = 2
ОО
в
9514 1404 393
Answer:
3x +y = 2
Step-by-step explanation:
Standard form is ...
ax +by = c
where a, b, c are mutually prime integers and the leading coefficient is positive.
We can put the equation in this form by adding 3x to both sides.
y = -3x +2
3x +y = 2 . . . . . add 3x to both sides. This is standard form.
Determine weather the rule represents an exponential function. EASY 40 POINTS
Exponential functions are something like y = 2^x where the variable is in the exponent (ie the exponent isnt a fixed number). What is given here, y = 3x^3, is a cubic function. You can also call this a power function. Power functions are of the form a*x^b, where a & b are constants.
a file that is 261 megabytes is being downloaded if the downloaded is 16.6% complete how many megabytes have been downloaded
43.326 megabytes has been downloaded
Solution:
Given that a file that is 261 megabytes is being downloaded
16.6 % of download is complete
To find: megabytes that have been downloaded
From given question,
16.6 % of 261 megabytes has been downloaded
Let us find 16.6 % of 261
We know that,
a % of b can be written in fraction as [tex]\frac{a}{100} \times b[/tex]
So 16.6 % of 261 is calculated as:
[tex]16.6 \% \text{ of }261 = 16.6 \% \times 261\\\\\rightarrow \frac{16.6}{100} \times 261\\\\\rightarrow 0.166 \times 261\\\\\rightarrow 43.326[/tex]
Thus 43.326 megabytes has been downloaded
Helpppp plzzz The frequency histogram shows the lengths of trails in a large park.
How many trails are less than 6 kilometers long or at least 24 kilometers long ?
Answer:
13 trails
Step-by-step explanation:
The histogram shows following numbers of trails:
0 - 6 km long - 5 trails;6 - 12 km long - 9 trails;12 - 18 km long - 7 trails;18 - 24 km long - 3 trails;24 - 30 km long - 4 trails;30 - 36 km long - 1 trail;36 - 42 km long - 3 trails.So, there are 5 trails with length less than 6 km and 4 + 1 + 3 = 8 trails that are at least 24 km long.
In total, 5 + 8 = 13 trails
Two perpendicular lines have opposite y-intercepts. The equation of one of these lines is
y=mx+b. Express the x-coordinate of the intersection point of the lines in terms of m and b.
The x-coordinate is x =_____
Plz help me and fast!
Answer: The required x-co-ordinate of the point of intersection of two lines is [tex]-\dfrac{2bm}{m^2+1}.[/tex]
Step-by-step explanation: Given that two perpendicular lines have opposite y-intercept and the equation of one of the lines is
[tex]y=mx+b.[/tex]
We are to express the x-coordinate of the intersection point of the lines in terms of m and b.
Let the slope and y-intercept of the other line be s and c respectively.
Since the product of the slopes of two perpendicular lines is -1 and -b is the opposite of b, so we have
[tex]ms=-1~~~\Rightarrow s=-\dfrac{1}{m}[/tex]
and c = -b.
That is, the equation of the other line is
[tex]y=sx+c\\\\\Rightarrow y=-\dfrac{1}{m}-b.[/tex]
Comparing the equations of both the lines, we get
[tex]mx+b=-\dfrac{1}{m}x-b\\\\\\\Rightarrow mx+\dfrac{1}{m}x=-2b\\\\\\\Rightarrow \dfrac{m^2+1}{m}x=-2b\\\\\\\Rightarrow x=-\dfrac{2bm}{m^2+1}.[/tex]
Thus, the required x-co-ordinate of the point of intersection of two lines is [tex]-\dfrac{2bm}{m^2+1}.[/tex]
Final answer:
The x-coordinate of the intersection point for two perpendicular lines with opposite y-intercepts can be expressed as x = -2b/(m + 1/m), where m is the slope and b is the y-intercept of one of the lines.
Explanation:
When we have two perpendicular lines with opposite y-intercepts, and one of the lines has the equation y = mx + b, we can find the x-coordinate of the intersection point by expressing the other line's equation.
Since the other line is perpendicular, its slope will be the negative reciprocal of m. Therefore, if the first line's slope is m, the second line's slope will be -1/m. Also, if the y-intercept of the first line is b, the y-intercept of the second line will be -b, given that they are opposite.
The equation of the second line will then be y = (-1/m)x - b. To find the intersection point, we set the y-values of both equations equal to each other:
mx + b = (-1/m)x - b
Now, let's solve for x:
mx + (1/m)x = -2b
x(m + 1/m) = -2b
x = -2b/(m + 1/m)
Thus, the x-coordinate of the intersection point in terms of m and b is x = -2b/(m + 1/m).
Roger drew one card from a standard deck of 52 cards. What is the probability that the card Roger drew is not a seven?
Answer: 12/13
Step-by-step explanation:
In a deck of cards there are 4 of each number. Therefore there are 4 sevens in the deck. 4/52 are 7, but you want the probability of getting a card that IS NOT 7. That means there are 48 cards that aren’t a 7. 48/52 is the probability. But you can simplify this by finding a number that divides evenly into both, which in this case is 4. This simplifies to 12/13.
what is an equation in point-slope form of the line that passes through (–3 –1) and has a slope of 2
Answer:
y+1=2(x+3)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-1)=2(x-(-3))
y+1=2(x+3)
Type the correct answer in the box
A component in a music system has a life expectancy of 2400 hours with a standard deviation of 300 hours. If an average person listens to
music for 1,000 hours in a year, the probability that the component lasts for more than 3 years is
Reset
Ned
2019 Ementum
seserved
If an average person listens to music for 1,000 hours in a year, the probability that the component lasts for more than 3 years is 2.3%.
In Mathematics and Statistics, the z-score of a given sample size or data set can be calculated by using the following formula:
Z-score, z = (x - μ)/σ
Where:
σ represents the standard deviation.
x represents the sample score.
μ represents the mean score.
Since an average person listens to music for 1,000 hours in a year, the total life span of the component for 3 years can be calculated as follows;
Total life span = 3 × 1000
Total life span = 3000 years.
By substituting the parameters into the z-score formula, we have the following:
Z-score, z = (3000 - 2400)/300
Z-score, z = 2.0
Based on the standardized normal distribution table, the required probability is given by:
P(X > 3000) = P(x > Z)
P(X > 3000) = 1 - P(Z < 2)
P(X > 3000) = 1 - 0.9773
Probability = 0.0227 × 100.
Probability = 2.27 ≈ 2.3%.
which is the coefficient in the expression 31y + 7 ?
Answer: 31
Step-by-step explanation: A coefficient is a number that appears in front of a variable. So in this case, since 31 appears in front of the variable y, 31 is the coefficient.
Now, you might think that 7 is a coefficient also but it's not. The reason it's not is because it doesn't have a variable attached to it so a coefficient needs to have a variable next to it.
What is x if 3x − 1 divided 4 = −5?
Answer:
x=-19/3
Step-by-step explanation:
(3x-1)/4=-5
3x-1=-5*4
3x-1=-20
3x=-20+1
3x=-19
x=-19/3
Answer:
Step-by-step explanation:
3x-1/4=-5
3x-0.25=-5
3x=-5.25
x=-1.75
On a school trip the ratio of the number of teachers to number of students is1:15.the ratio of the number of male students to the number of female students is 7:5 work out what percentage of all the people on the trip are female students
Answer:
Step-by-step explanation:
The percentage is 59 percent males 41 percent females
100 POINTS! PLEASE HELP!
What is the equation for the line?
Enter your answer in the box.
Answer:
[tex]y=-4x+5[/tex]
Step-by-step explanation:
Step 1: Find the slope
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\frac{13-5}{-2-0}[/tex]
[tex]m=-\frac{8}{2}[/tex]
[tex]m=-4[/tex]
Step 2: Use point slope form
[tex](y-5) = -4(x-0)[/tex]
[tex]y-5 + 5=-4x + 5[/tex]
[tex]y=-4x+5[/tex]
Answer: [tex]y=-4x+5[/tex]
y=-4x+5
Step-by-step explanation:
Step 1: Find the slope
m=\frac{y_2-y_1}{x_2-x_1}
m=\frac{13-5}{-2-0}
m=-\frac{8}{2}
m=-4
Step 2: Use point slope form
(y-5) = -4(x-0)
y-5 + 5=-4x + 5
y=-4x+5
Which equation represents a linear function?
oy-2=-5(x - 2)
X+ 7 = -4(X + 8)
y - 3 = y(x + 4)
y + 9 = x(x - 1)
Answer:
[tex]y-2=-5(x - 2)[/tex]
Step-by-step explanation:
Given:
The equations given are:
[tex]y-2=-5(x - 2)\\X+ 7 = -4(X + 8)\\y - 3 = y(x + 4)\\y + 9 = x(x - 1)[/tex]
Now, a linear function is of the form:
[tex]y=mx+b[/tex]
Where, 'm' and 'b' are real numbers and [tex]m\ne0[/tex]
Equation 1: [tex]y-2=-5(x - 2)[/tex]
Simplifying using distributive property, we get:
[tex]y-2=-5x+10\\y=-5x+10+2\\y=-5x+12[/tex]
The above equation is of the form [tex]y=mx+b[/tex]. So, it represents a linear function.
Equation 2: [tex]X+ 7 = -4(X + 8)[/tex]
Here, both sides of the equation has same variable 'X'. So, it will form an equation of 1 variable. So, it's not a linear function.
Equation 3: [tex]y - 3 = y(x + 4)[/tex]
Simplifying the above equation. This gives,
[tex]y-3=yx+4y\\y-4y-yx=3\\y(1-4-x)=3\\y(-3-x)=3\\y=\frac{3}{(-3-x)}[/tex]
This is not of the form of the linear function. So, it is also not a linear function.
Equation 4: [tex]y + 9 = x(x - 1)[/tex]
Simplifying the above equation. This gives,
[tex]y+9=x^2-x\\y=x^2-x-9[/tex]
This is not of the form of the linear function. So, it is also not a linear function.
Answer:
A
Step-by-step explanation:
on edge 2020