Answer:
h(t) = -3(t-8)(t+4). and 8 minutes
Step-by-step explanation:
The function can be written as: h(t) = - 3(t² - 4t - 32). As per quadratic equation, after take off, the drone will land on the ground after 8 minutes.
What is a quadratic equation?A quadratic equation is an equation that contains a variable with highest degree of 2.
Given, the height of the drone t minutes after take off is modeled by
h(t) = - 3t² + 12t + 96 = - 3(t² - 4t - 32)
Therefore, the function can be written as: h(t) = - 3(t² - 4t - 32)
Therefore, we can write the equation as:
t² - 4t - 32 = 0
⇒ t²- 8t + 4t - 32 = 0
⇒ t(t - 8) + 4(t - 8) = 0
⇒ (t + 4)(t - 8) = 0
Hence, (t + 4) = 0 and (t - 8) = 0
Therefore, t = -4, 8.
As 't' can't be negative, therefore, t = 8.
Therefore, after take off, the drone will land on the ground after 8 minutes.
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Graph: y < 1/3x+1/2 plot this on a graph
it's was helpful to you dear ❤️❤️❤️
Answer:
Plot (0.5, 1.5) on the graph.
Which point is a solution to the inequality? (3, 1/2)
Step-by-step explanation:
What is the solution of x + 1/5 (x - 1) = 1?
Answer:
1
Step-by-step explanation:
x-1+ 1 /5*( x-1)=0
(x-1)*6/5=0
x=1
Here are Xavier's bowling scores:
135, 140, 130, 190, 112, 200, 185, 172, 163, 151,
149
What is the variance rounded to the nearest tenth?
Answer:
The variance rounded to the nearest tenth is 691.8
Step-by-step explanation:
Xavier's bowling scores:
135, 140, 130, 190, 112, 200, 185, 172, 163, 151, 149
No. of observations n = 11
\(Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}\\Mean = \frac{135+140+130+190+112+200+185+172+ 163+ 151+149}{11}\\Mean =157\)
Formula of variance : \(\sigma^2=\frac{\sum(x_i-\bar{x})^2}{n}\)
\(\sigma^2=\frac{(135-157)^2+(140-157)^2+(130-157)^2+(190-157)^2+(112-157)^2+(200-157)^2+(185-157)^2+(172-157)^2+(163-157)^2+(151-157)^2+(149-157)^2}{11}\)
\(\sigma^2=\frac{7610}{11}\)
\(\sigma^2=691.81\)
Hence the variance rounded to the nearest tenth is 691.8
Lisa has 5/8 of a pound of grapes. 2/3 of the grapes are green and the rest are purple she divides the purple grapes equally among 10 friends how much does each friend get
Answer: ⅝-⅔ = -1 are purple grapes
each friend will get-0.1 purple grapes its quite easy you know
Answer:
Step-by-step explanation:
What is the greatest common factor of the terms in the polynomial
12x4 - 6x2 + 9x2
Answer:
\(3x^2\)
Step-by-step explanation:
\(12x^4-6x^2+9x^2\)
Let's break down these terms into three parts; our number, our base (variable), and our power (exponent).
First, let's think of a number that could be factored out of the numbers 12, 6, and 9. If you're thinking of the number 3, you'd be correct.
Second, look at the bases. We can see that the variables in these terms are all \(x\), so we can combine that with our number 3.
Third, look at the powers. We can see that the exponent of 2 can be factored out, so let's combine that with our 3x:
\(3x^2\)
To put that in perspective:
\(3x^2(4x^2-2+3)\)
_
To check your work, you can distribute the greatest common factor into the parentheses:
\(3x^2(4x^2-2+3)\)
\(12x^4-6x^2+9x^2\)
2x + 9x2 + 4x + 4xy – 6x2
Simplified would be 4xy + 3x^2 + 6x
Answer:
4xy+3x²+6x
Step-by-step explanation:
Select the mathematical sentence that is true.
A. 3 (7-3 + 5 < 6 + 2 1
B. 3 (7 - 3) + 5 s 6 + 2 1
C. 3 (7 - 3) + 5 = 6 + 2 1
D. 3 (7 - 3) + 5 > 6 + 2 1
High amount of points.
Answer: a
Step-by-step explanation:
Answer:
A. 3(7-3) < 6 + 21
Step-by-step explanation:
A. 3(7-3) < 6 + 21
21-9 < 27
12 < 27
True
B. ??
C. 3(7-3) = 6 + 21
21 - 9 = 27
12 = 27
False
D. 3(7-3) < 6 + 21
21-9 > 27
12 > 27
False
Therefore, the correct answer is A
Hope this helps!
a tower that is 155 feet tall casts a shadow 159 feet long. find the angle of elevation of the sun to the nearest degree.
the height of the tower gives a ratio of 159/155. Taking the inverse tangent of this ratio gives the angle of elevation of the sun, 56.7°.
Let x represent the sun's elevation angle.Then, tan(x) = 159/155.
x = tan-1(159/155) = 56.7°
The angle of elevation of the sun can be calculated using the tangent ratio. The tangent ratio states that the opposite side divided by the adjacent side of a triangle is equal to the tangent of the angle. In this case, the opposite side of the triangle is the length of the shadow, 159 feet, and the adjacent side is the height of the tower, 155 feet. Dividing the length of the shadow by the height of the tower gives a ratio of 159/155. Taking the inverse tangent of this ratio gives the angle of elevation of the sun, 56.7°.
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You are being asked to create a new design and propose this to sm prime holdings. the following are needed in your proposal: 1. the total number of seats in the coliseum must be between 18 000 and 22 500. one ring of the seats all the way around the court at the center is considered a row and row 1 is the row closest to the court. 2. the number of seats in each row must form an arithmetic sequence , increasing by the same number in each subsequent row. 3. your task is to decide on the total number of seats in the coliseum by designing a seating arrangement that has reasonable number of rows by determining ; a. the number of seats in the first row. b. the number of rows required. c. the number of seats by which each row increase. d. the number of seats in the last row. e. the total number of seats in the arena. >how many seats are they in the first row? >how many seats increased in each rows? >how many seats in the last row? >how many seats are they in the arena?
Using the properties of arithmetic sequence , we calculate
a) 100 seats in the first row (b) 40 rows are required (c) 22 more seats in each row (d) 958 seats in the last row.
The overlap of any two doubly infinite arithmetic progressions seems to be either empty or another arithmetic progression, according to the Chinese remainder theorem.
If every pair of advancements in a family of twice infinite arithmetic progressions has a non-empty intersection, then there is a number that connects all of the pairs; consequently, an infinite arithmetic progression is a member of the Helly family.
However, rather than being an unending progression in and of itself, the intersection of an infinite number of infinite arithmetic progressions might be a particular number.
We know that the AP has the total number of seats between 18 000 and 22 500.
So if we take first term as 100 common difference as 22 and 40 rows we get :
sum = \(\frac{40}{2} [2\times 100+(40-1)22] = 21160\)
Therefore the number of seats in the arena matches the required description.
and the last row will have 100+(39)22 = 968 seats.
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Asap pls help I need help
Answer:
\(a_{n}=2+3(n-1)\)
Step-by-step explanation:
Step 1. To find the equation that describes the pattern, we use the arithmetic sequence formula:
\(a_{n}=a_{1}+d(n-1)\)
Where a_n is the n'th terms and d is the common ratio between the numbers.
Step 2. The sequence we have is:
2 5 8 11
The first term is:
\(a_{1}=2\)
And the common ratio or the difference between consecutive numbers is:
3 2+3=8 5+3=8 8+3=11
This will be the value of d:
d=3
Step 3. Substituting a_1 and d into the formula:
\(a_{n} =a_{1}+d(n-1)\\a_{n}=2+3(n-1)\)
This is the equation that represents the number pattern, it represents that we add three each time to the previous number in the sequence.
Hence, the correct answer is \(a_{n}=2+3(n-1)\)
Mei Mei wraps a gift box in the shape of a triangular pyramid. The figure below shows a net for the gift box.
Mei Mei utilized wrapping paper that was 337.212 square inches in size.
What is the triangular pyramid formula?The formula V = 1/3AH, where H is the height of the pyramid or the distance from its base to its apex, may be used to calculate the volume of a triangular pyramid.
To find the amount of wrapping paper Mei Mei used
we need to find the surface area of the triangular pyramid.
The formula for an equilateral triangle's area is as follows:
\(A = (\sqrt{(3)/4}) \times s^2\)
where s is a side of the triangle's length.
The base of the triangular base is 13 inches, so the sides of the triangles are also 13 inches.
The slant height of the pyramid is given as 11.26 inches.
Using the formula, we find that the area of each triangular face is:
\(A = (\sqrt{(3)/4)} \times s^2 = (\sqrt{(3)/4)} \times 13^2 = 84.303\)
To find the total surface area of the pyramid, we add up the areas of all four triangular faces. There are four triangles, so:
total surface area =\(4 \times A = 4 \times 84.303 = 337.212\)
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Complete question -
Mei Mei wraps a gift box in the shape of a triangular pyramid. The figure below shows a net for the gift box.
1.
a. Find x and y so that the following equation is true. (Enter your answers as a comma-separated list.)
(x2 − 3x) + y2i = 10 + (2y − 1)i
x=
y=
b. Find all x and y (0 ≤ x < 2, 0 ≤ y < 2) so that the following equation is true. (Enter your answers as a comma-separated list.)
cos x + i sin y = sin x + i
x=
y=
a. To make the equation true, we need the real parts on both sides to be equal and the imaginary parts on both sides to be equal.
From the given equation:
x^2 - 3x = 10 (equating the real parts)
y^2 = 2y - 1 (equating the imaginary parts)
Solving the first equation:
x^2 - 3x - 10 = 0
Factoring the quadratic equation:
(x - 5)(x + 2) = 0
Setting each factor equal to zero:
x - 5 = 0 or x + 2 = 0
Solving for x:
x = 5 or x = -2
Now, solving the second equation:
y^2 - 2y + 1 = 0
Factoring the quadratic equation:
(y - 1)(y - 1) = 0
Setting the factor equal to zero:
y - 1 = 0
Solving for y:
y = 1
Therefore, the solutions are:
x = 5, y = 1
x = -2, y = 1
b. For the second equation:
cos(x) + i*sin(y) = sin(x) + i
Comparing the real and imaginary parts:
cos(x) = sin(x) (equating the real parts)
sin(y) = 1 (equating the imaginary parts)
Solving the first equation:
cos(x) = sin(x)
Using the identity sin(x) = cos(π/2 - x):
cos(x) = cos(π/2 - x)
Therefore, x = π/2 - x + 2kπ or x = -π/2 + x + 2kπ, where k is an integer.
Simplifying:
2x = π/2 + 2kπ or 2x = -π/2 + 2kπ
Solving for x:
x = (π/2 + 2kπ)/2 or x = (-π/2 + 2kπ)/2
Simplifying:
x = π/4 + kπ or x = -π/4 + kπ
Now, solving the second equation:
sin(y) = 1
The only solution in the given range (0 ≤ y < 2) is:
y = π/2
Therefore, the solutions are:
x = π/4, y = π/2
x = -π/4, y = π/2
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Find the value of x.
1)
46°
x
There's no question there. You didn't attach the pic
Parralel lines cut by a transversal coloring activity. Please give explanation. Will give brainiest.
Step-by-step explanation:
Parallel lines cut by a transversal coloring activity is an activity that helps students understand the pattern of angles when parallel lines are cut by a transversal. The activity involves coloring the angles formed by the parallel lines and the transversal in different colors. This helps students identify the different types of angles formed and their relationships with each other.
You have $80 in your bank account. each week you plan to deposit $8 from your allowance and $10 from your paycheck. The equation b=80+(10+8)w gives the amount b in your bank account after W weeks. How many weeks from now will you have $180 in your bank account
Answer:
5.5 weeks
Step-by-step explanation:
180 = 80+(18)w
100= 18w
w=100/18
w = 5.5
HELP PLEASEEEEEEEEEEEEEEEEEEEEE
Answer:
22%
Step-by-step explanation:
1. Find the slope
(1 point)
2
-1/2
-2
1/2
Answer:
-2
Step-by-step explanation:
you look at the y axis and that is where you start it goes 2 down and 1 to the right
Answer:
C. -2
Step-by-step explanation:
Using the two points on the graph, apply the slope formula.
(y₂ - y₁)/(x₂ - x₁)
The points given are (-3, 3) and (1, -5).
(-5 - 3)/(1 - (-3))
Simplify.
-8/4
Divide.
-2.
Here are 3 polygons. Draw a scaled copy of Polygon A using a scale factor of 2. Draw a scaled copy of Polygon B using a scale factor of 1/2. Draw a scaled copy of Polygon C using a scale factor of 3/2.
In polygon, The sum of all interior angles of a triangle must be 180°.
In arithmetic, what is a polygon?
Any closed curve made up of a group of continuous line segments (sides) without any intersections is referred to as a polygon in geometry. The three basic polygons are triangles (three sides), quadrilaterals (four sides), and pentagons (five sides). A polygon is a two-dimensional, closed form with straight sides that is flat or planar. It doesn't have curled sides. The edges of a polygon are another term for its sides. The points where two sides meet are known as a polygon's vertices (or corners).a) scaled copy of A with scale factor 1/2.
b) This is scale copy of polygon B with scale factor 2 .
c) Scaled copy of polygon C with scaled factor 1/4 .
the sum of all interior angles of a triangle must be 180° . So in option B sum of angles is 180.
50° + 60° + 70° = 180°
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Seven times the sum of a number and 3 is 9.
Answer: -1.71
7(x+3) = 9 is the equation
7x+21 = 9
7x = -12
x= -12/7
x= -1.71
Statistical time division multiplexing is sometimes called ____ time division multiplexing. a. empirical c. asynchronous b. random d. synchronous.
Statistical time division multiplexing is sometimes called asynchronous time division multiplexing. The correct answer is "c. asynchronous."
Statistical time division multiplexing is sometimes called asynchronous time division multiplexing. However, it should be noted that statistical time division multiplexing is different from synchronous time division multiplexing, which divides the time slots in a fixed, predetermined manner. In statistical time division multiplexing, the time slots are allocated dynamically based on the data traffic, hence the term "statistical".
More specifically, asynchrony describes the relationship between two or more events/objects that interact in the same system but do not occur in a predetermined manner and are not necessarily dependent on each other's existence for escape. They do not cooperate with each other, which means they may or may not occur simultaneously as they have their own separate processes.
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A line with a slope of -2 passes through the point (3,-1). Which of the following is the equation of the
line?
Answer:
C.) y = -2x + 5
Step-by-step explanation:
The general structure of an equation in slope-intercept form is:
y = mx + b
In this form, "m" represents the slope and "b" represents the y-intercept.
You were given the value of "m" (-2). You were also given an "x" variable and "y" variable from a point (3,-1). You can plug these variables into the equation and simplify to find "b".
m = -2 x = 3 y = -1
y = mx + b <---- General structure
y = -2x + b <---- Plug -2 in for "m"
-1 = -2(3) + b <---- Plug "x" and "y" values in from point
-1 = -6 + b <---- Multiply -2 and 3
5 = b <---- Add 6 to both sides
Therefore, the equation of the line is:
y = -2x + 5
a study measuring the effects of a new diuretic medication records hourly urine output of subjects. this measure represents which level of measurement? group of answer choices ratio interval nominal ordinal
When measuring the effects of a new diuretic medication, hourly urine output represents the ratio level of measurement.
What is ratio level of measurement?
Ratio level of measurement is a type of measurement that features a true zero point, meaning that the value 0 represents the absence of the characteristic being measured.
Some examples of ratio level measurements include weight, height, length, distance, speed, and many others. In this case, the hourly urine output of subjects is measured to determine the effects of a new diuretic medication.
The hourly urine output is a ratio measurement because it has a true zero point, which is the absence of urine output. In other words, if there is no urine output, the value would be 0, which represents the absence of the characteristic being measured.
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is the pareto distribution a member of a location family? a member of a scale family? a member of a location-scale family? none of the above? explain.
Pareto distribution is a member of a scale family referring fixed values of the shape parameter, it is trivially closed under scale transformations.
The Pareto distribution is a power-law probability distribution used in description of social, quality control, scientific, geophysical, actuarial, and many other types of observable phenomena. It was initially applied to demonstrate the distribution of wealth in a society, fitting the trend that a large portion of wealth is held by a small fraction of the population. The pareto principle or 80-20 rule states that 80% of outcomes are due to 20% of causes. Pareto distribution is a member of the scale family distribution which is parameterized by a scale parameter. The larger the scale parameter, the more spread out the distribution.
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1. (10 points) Suppose a principal P is invested in an account that accrues interest compounded continuously at a 5% annual rate starting at time t=0 in years. Let y(t) be the value of the account after t years. (a) Set up an equation that models y. (Think about whether a difference or differential equation makes more sense). (b) Find the general solution to the equation you set up in part (a). (c) Suppose that P=2000. How much money is in the account after 10 years?
The account value, y(t), accruing continuously at a 5% annual rate, is modeled by the differential equation dy/dt = 0.05y. After 10 years, with P = $2000, the account value is approximately $3263.18.
(a) To model the value of the account, y(t), as it accrues continuously at a 5% annual interest rate, we use a differential equation. The rate of change of y with respect to time, t, is given by dy/dt, and it is equal to the interest rate times the current value of the account, which is 0.05y.
(b) Solving the differential equation dy/dt = 0.05y, we separate variables and integrate:
∫(1/y)dy = 0.05∫dt
ln|y| = 0.05t + C
Taking the exponential of both sides, we have |y| = e^(0.05t + C)
Since y represents the value of the account, we can write the general solution as y = Ae^(0.05t), where A is the constant of integration.
(c) If P = 2000, then we have the initial condition y(0) = 2000. Substituting these values into the general solution, we obtain 2000 = Ae^(0.05(0))
Simplifying, we find A = 2000. Therefore, the specific solution is y = 2000e^(0.05t).
To find the amount of money in the account after 10 years, we substitute t = 10 into the equation:
y(10) = 2000e^(0.05(10))
y(10) ≈ 2000e^(0.5)
Therefore, After 10 years, with P = $2000, the account value is approximately $3263.18.
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Someone please help me
Step-by-step explanation:
ex1 :
a) the are of the circle is r x r x 3.14 = 15 x 15 x 3.14 = 706
b) the price is 1.25$ x 706 = 882.5$
.
ex2:
a) g(1) = 5, f(5) = 20, so 20
b)f(2) = -1, g(-1) = 1, so 1
c) g(0) = 3, g(3) = 9, so 9
plz help i have 9 min to finish
Answer:
After 4 weeks, Macy and Robby will have same amount in their accounts.
Step-by-step explanation:
Given,
Amount saved by Macy each week = $12.50
Let,
x be the number of weeks.
M(x) = 12.50x
Amount saved by Robby each week = $7.50
Amount Robby already have = $20
R(x) = 7.50x + 20
For same amount;
M(x) = R(x)
Dividing both sides by 5
After 4 weeks, Macy and Robby will have same amount in their accounts.
Keywords: function, division
Answer:
Macy: 0 + 12.50x
Robby: 20 + 7.50x
After 4 weeks, they will have the same amount of money. (Both will have $50 by then)
Can a 13 year old be in 7th grade?
If the age requirements for academic progressions set by a school is satisfied, than yes it is possible for a 13 year old to be in 7th grade.
What is the perfect age for a child to start schooling?The age at which a child is ready to start schooling can vary depending on a number of factors, including the child's physical, social, and emotional development. In general, children who are at least 5 years old and are able to meet certain developmental milestones are typically ready to start school.
Why academic skill is more important than age before grading up?Because academic skills are directly tied to a pupil's capacity for academic success, they are sometimes seen as being more significant than age when deciding whether a student is prepared to proceed to a higher grade level. Age is not always a reliable indicator of a student's intellectual aptitude or preparation for a higher grade level. Even if they are younger than their peers, some children may be farther along in their studies and possess the abilities and knowledge required to succeed in a higher grade. Even if they are older than their friends, some kids may be falling behind in their academics and not yet ready to advance to a higher grade.
Depending on the school's age requirements and the student's academic standing, a 13-year-old may be in the 7th grade. A kid who is 13 years old might be in seventh grade since in many educational systems, pupils in this grade are between the ages of 12 and 13. It is usually recommended to verify with the school to clarify their age requirements because they might differ from one school system to another. The intellectual ability of a student may also play a role in establishing what grade they are in addition to their age.
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Solving linear systems with 3 variables
Solve for x y and z using substitution
5x+2y-2z=-57
3x-10y-z=-11
y=-2
Answer:
x=-9
y=-2
z=4
Step-by-step explanation:
5x+2y-2z=-57
3x-10y-z=-11
y=-2
5x+2(-2)-2z=-57
3x-10(-2)-z=-11
y = -2
5x-4-2z=-57
3x+20-z=-11
y = -2
5x-2z=-53
3x-z=-31
y = -2
5x-2z=-53
3x+31=z
y = -2
5x-2(3x+31)=-53
3x+31=z
y = -2
5x-6x-64=-53
3x+31=z
y = -2
-x=9
3x+31=z
y = -2
x=-9
3(-9)+31=z
y = -2
x=-9
-27+31=z
y = -2
x=-9
z=4
y = -2
NOTE: For All Calculations In This Lab, Use The Approximation Of 62,500 Inches To The Mile When Necessary. ALWAY
By using the approximation of 62,500 inches to the mile, you can simplify and expedite various calculations involving distances and conversions between inches and miles, providing a convenient tool for numerical analysis and problem-solving
The approximation of 62,500 inches to the mile is commonly used in various calculations, especially in scenarios where conversions between inches and miles are involved. This approximation simplifies the conversion process and allows for easier calculations.
For example, if you need to convert a distance from miles to inches, you can simply multiply the number of miles by 62,500 to obtain the equivalent distance in inches. Conversely, if you have a measurement in inches and want to convert it to miles, you divide the number of inches by 62,500 to get the distance in miles.
Additionally, this approximation can be useful in other applications, such as determining the number of inches in a given number of miles, or calculating the length of a specific distance in miles based on its measurement in inches.
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.
create a video explaning the solution of this problem.
help me create a script and the answer for the problem thank you!
The grounded ends of the guy wires are 15 meters apart.
How to calculate tie valueUsing the Pythagorean theorem, we can calculate the length of the base (distance between the grounded ends of the guy wires).
Let's denote the length of the base as 'x.'
According to the problem, the height of the tower is 20 meters, and the length of each guy wire is 25 meters. Thus, we have a right triangle where the vertical leg is 20 meters and the hypotenuse is 25 meters.
Applying the Pythagorean theorem:
x² + 20² = 25²
x² + 400 = 625
x² = 225
x = √225
x = 15
Therefore, the grounded ends of the guy wires are 15 meters apart.
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