Answer: 24
Step-by-step explanation:
t=seconds. h=height
t=3
h=3+55t-16t^2
h=3+55(3)-16(3)^2
h=3+165-16*9
h=168-144
h=24 ft
The ball's height 3 seconds after it was kicked is 24 feet above the ground.
Given that a formula h = 3 + 55t-16t² describes a ball's height above the ground h, which has been kicked vertically upward from a height of 3 feet with an initial speed of 55 feet per second.
We need to find the height of the ball after 3 seconds.
To find the ball's height 3 seconds after it was kicked, we can use the formula provided:
h = 3 + 55t - 16t²
where h represents the height in feet and t represents the time in seconds.
To find the height after 3 seconds (t = 3), plug the value into the formula and calculate:
h = 3 + 55(3) - 16(3)²
Now, perform the calculations step by step:
h = 3 + 55(3) - 16(9)
h = 3 + 165 - 144
h = 24 feet
Hence the required height is 24 feet.
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can someone help me answer this question please?
Answer:
A
Step-by-step explanation:
f(x) = (x + 3)(x + 2)(x - 3)
The three roots are going to give - 18 so only A and D can be correct. Why minus? because at some point 3 and 2 and - 3 will all be multiplied together. When they are, the result is - 18
So why did I write x + 2 rather than x - 2? Because the roots turn an equation into 0. You are looking for a way to make x + 2 = 0. It will do that when x = - 2
which is what you were given.
Now to get the answer
(x - 3)(x + 3) = x^2 - 9
(x^2 - 9)(x + 2) = x^3 + 2x^2 - 9x - 18 = f(x)
how many cubic centimeters of water will a rectangular fish tank hold if the tank is cm long, cm wide, and cm high? when appropriate, use the key on your calculator.
To find the volume of a rectangular fish tank, we need to multiply its length, width, and height together.
Given:
Length = cm
Width = cm
Height = cm
The volume of the fish tank is given by:
Volume = Length * Width * Height
Substituting the given values, we have:
Volume = cm * cm * cm
To find the actual volume in cubic centimeters (cm³), we can perform the multiplication using a calculator or multiplication tool. Multiply the three values together, making sure to use the appropriate key on your calculator for multiplication.
For example, if the length is 10 cm, width is 15 cm, and height is 20 cm, the calculation would be:
Volume = 10 * 15 * 20 = 3000 cm³
Therefore, the fish tank will hold 3000 cubic centimeters (cm³) of water.
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please helppp mee!!!
explain how you know!
Answer:
Yes It will still be balanced.
Step-by-step Explanation:
Since the object is basically being cut in half, as long as the weight is still the same on each side, the balance should still be the same.
i need help with this quickly anybody. (no pictures)
Answer:
Its C
Step-by-step explanation:
Answer:
90°
Step-by-step explanation:
The lines are perpendicular meaning that the bottom angle is the same as the top.
Find the area of a regular
polygon with 5 sides that has a
side length of 6 inches and an
apothem of 9 inches.
Answer:
Step-by-step explanation:
Height of the triangle = apothem = 9 inches
Base = 6 inches
\(Area \ of \ triangle = \frac{1}{2}bh\\\\=\frac{1}{2}*6*9\\\\= 3*9\\\\= 27 \ in^{2}\)
Area of regular polygon = Area of 5 triangle.
= 5 * 27
= 135 square inches
Two times the quantity of 6 subtracted from 13
Answer:
13 - 6(2)
Step-by-step explanation:
I found this out because, since you have to subtract the 6 from the 13, the 13 will go first:
13 -
Then, you figure out what the 6 and two times means. It means 6 x 2, or 6(2):
13 - 6(2).
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 12 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
What is (1.6x + 7.3) + (–0.6x + 2) – (7.8 – 3.4x), simplified?
Answer:
4.4x+1.5Step-by-step explanation:
\((1.6x + 7.3) + (-0.6x + 2) - (7.8 -3.4x)\\Ope- the- brackets\\1.6x+7.3-0.6x+2-7.8+3.4x\\Collect-like-terms\\1.6x-0.6x+3.4x+7.3+2-7.8\\4.4x+1.5\)
Answer:
4.4
Step-by-step explanation:
Find the nth term for 13 8 3 -2 -7 and the 100th term
Answer:
see explanation
Step-by-step explanation:
there is a common difference between consecutive terms in the sequence, that is
8 - 13 = 3 - 8 = - 2 - 3 = - 7 - (- 2) = - 5
this indicates the sequence is arithmetic with nth term
\(a_{n}\) = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
here a₁ = 13 and d = - 5 , then
\(a_{n}\) = 13 - 5(n - 1) = 13 - 5n + 5 = 18 - 5n
then
a₁₀₀ = 18 - 5(100) = 18 - 500 = - 482
2.2 + 4y = 8
Y intercept
2. Prove that the following are solutions to their respective differential equa- tions: (a) y = e³r, y" + 2y' - 15y = 0 (b) ycie + c₂xe, y" - 2y + y = 0
The function y = e³r is a solution to the differential equation y" + 2y' - 15y = 0. The function y = c₁e^x + c₂xe is a solution to the differential equation y" - 2y + y = 0.
(a) To prove that y = e³r is a solution to y" + 2y' - 15y = 0, we need to substitute y and its derivatives into the differential equation and verify if the equation holds true. Let's calculate the first and second derivatives of y = e³r:
y' = 3e³r (by the chain rule)
y" = 9e³r (by differentiating y' with respect to r)
Now, substitute y, y', and y" into the differential equation:
9e³r + 2(3e³r) - 15(e³r) = 9e³r + 6e³r - 15e³r = 0
Hence, the function y = e³r satisfies the given differential equation.
(b) For the differential equation y" - 2y + y = 0, let's substitute y = c₁e^x + c₂xe and its derivatives into the equation:
y' = c₁e^x + c₂e^x + c₂xe^x (using the product rule)
y" = c₁e^x + c₂e^x + c₂xe^x + c₂e^x + c₂xe^x (differentiating y' with respect to x)
Simplifying the equation:
(c₁e^x + c₂e^x + c₂xe^x + c₂e^x + c₂xe^x) - 2(c₁e^x + c₂xe^x) + (c₁e^x + c₂xe^x) = 0
By combining like terms, we get:
(c₁ + 2c₂)e^x + (4c₂)e^x = 0
Since the equation holds true for any values of c₁ and c₂, the function y = c₁e^x + c₂xe is a solution to the given differential equation.
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what is the sum of the interior angle measures of a convex decagon
Answer:
1440°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
A decagon has 10 sides , then
sum = 180° × 8 = 1440°
x= 3.5 y=14 find y when x=28
Answer:
y=112
Step-by-step explanation:
set the two fractions equal to each other
Answer:
=14*28/3.5
=329/3.5
=112
Step-by-step explanation:
here is your answer
Copy and complete the prime factor trees
for 21 and 33.
What is the highest common factor (HCF)
of 21 and 33?
21
33
Answer:
21 = 3 * 7
33 = 3 * 11
HCF 3
A set of line segments has the lengths, 4,10, and 12. Would the segments form a triangle?
Answer:
Yes, the segments would form a triangle.
Step-by-step explanation
If the two shortest lengths are equal to or greater than the longest, it can form a triangle.
Answer:
yes
Step-by-step explanation:
Add any two sides and see if it is greater than the third for all three sides
4+10 > 12 true
10+12 > 4 true
12+4 > 10 true
Then the three sides form a triangle
What is the area of this shape?
Answer: 98 in2
• First let split the shape into 2 rectangles.
We’ll be using the formula: b•h (base times height)
• Small rectangle:
7x3 = 21
• Bigger rectangle:
7x11 = 77
• Now we add both, which is:
21 + 77 = 98
Apples cost $5 for 550g. If you have $25, how many kilograms of apples can you buy?
Gold costs $500 per ounce. A solid gold nugget is 1 pound, how much is it worth?
A new hybrid car can travel 65 miles per gallon. How many miles can you drive on 5 gallons of gas?
Answer:
1)13,750g
2)$8000
3)325 miles
Step-by-step explanation:
25×550=1375 because you buy $25 worth
16 ounces= 1 pound so 16×500=$8000
if I get 65 per 1 gallon then for 5 gallons I get 325 miles or 65×5=325
0.3x
1
+0.1x
2
≤2.7→0.3x
1
+0.1x
2
≤1.8 Work through the simplex method step by step. How the solution changes (i.e., LP has optimal solutions or LP is unbounded or is infeasible)? Why?
The solution to the linear programming problem 0.3x₁ + 0.1x₂ ≤ 1.8 using the simplex method shows that the problem has optimal solutions.)
Convert the inequality into an equation by subtracting 1.8 from both sides:
0.3x₁ + 0.1x₂ - 1.8 ≤ 0
Introduce slack variables to convert the inequality into an equation:
0.3x₁ + 0.1x₂ + s₁ = 1.8
Set up the initial simplex tableau:
┌───┬───┬───┬───┬───┐
│ │ x₁ │ x₂ │ s₁ │ 1│
├───┼───┼───┼───┼───┤
│ 1│ 0.3│ 0.1│ 1 │1.8│
└───┴───┴───┴───┴───┘
```
Select the pivot column. Choose the column with the most negative coefficient in the bottom row. In this case, it is the second column (x₂).
Select the pivot row. Divide the numbers in the rightmost column (1.8) by the corresponding numbers in the pivot column (0.1) and choose the smallest positive ratio. In this case, the smallest positive ratio is 1.8/0.1 = 18. So the pivot row is the first row.
The simplex method is an iterative procedure that systematically improves the solution to a linear programming problem. It starts with an initial feasible solution and continues to find a better feasible solution until an optimal solution is obtained. In each iteration, the simplex method selects a pivot column and a pivot row to perform row operations, which transform the current tableau into a new tableau with improved objective function values. The process continues until the objective function values cannot be further improved or the linear programming problem is unbounded.
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The correct answer is
0.3x1+0.1x2≤2.7→0.3x1+0.1x2≤1.8 Work Through The Simplex Method Step By Step. How The Solution Changes (I.E., LP Has Optimal
PLEASE HELP!! WILL GIVE BRAINLIEST!!
An archer shoots an arrow into the sky where the motion of the arrow can be modeled by the equation:
f(t) = -16t² + 80t
where t is time in seconds and f(t) is height in feet.
Find how long it will take the arrow to hit the ground using an algebraic method
Show all of your reasoning/steps used with this algebraic method.
Answer:
this is unsolvable because you dont know what the height in feet is
waterloo park posted the following schedule listing the number of hours an employee works on a given day. let b(x), t(x), r(x), and s(x) represent the number of hours worked by bill, ted, rufus, and socrates, respectively, on a given day x.
The schedule for the number of hours worked by employees at Waterloo Park is represented by the functions b(x), t(x), r(x), and s(x) for Bill, Ted, Rufus, and Socrates, respectively, on a given day x.
In the schedule, the function b(x) represents the number of hours worked by Bill on a given day x. Similarly, the function t(x) represents the number of hours worked by Ted, the function r(x) represents the number of hours worked by Rufus, and the function s(x) represents the number of hours worked by Socrates on the same given day x.
By using these functions, you can determine the specific number of hours each employee worked on any given day. For example, if you have a value for x, you can substitute it into the functions to find the corresponding number of hours worked by each employee.
It's important to note that the functions b(x), t(x), r(x), and s(x) are specific to Waterloo Park and the employees mentioned. The given schedule provides a way to track the hours worked by each employee on different days. By utilizing these functions, you can analyze and calculate the hours worked by each employee effectively.
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Plot the x-intercepts, the y-intercept, and the vertex of the graph (Must use Desmos!)
Answer:
x-intercept: (-1,0)
y-intercept: (0,3)
Vertex: (-2,-1)
Step-by-step explanation:
sarah is playing a game in which she rolls a number cube 20 times the results are recorded in the chart below. what is the experimental probability of rolling a 1 or a 2? answers 0.3, 0.45, 0.65, 1.25.
The experimental probability of rolling a 1 or a 2 is 0.2.
Hence, Option A is correct.
We know that,
The experimental probability of an event is defined as the number of times the event occurred divided by the total number of trials.
In this case,
The event is rolling a 1 or a 3,
Which occurred ⇒ 3 + 1
= 4 times.
Given that there are total number of trials = 20.
Therefore,
The experimental probability of rolling a 1 or a 3 = 4/20,
= 1/5
= 0.2
Hence, the required probability is 0.2.
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The complete question is:
Sarah is playing a game in which she rolls a number cube 20 times. The results are recorded in the chart below. What is the experimental probability of rolling a 1 or a 3?
Number on cube:1,2,3,4,5,6
Number of times event occurs:3,6,1,5,3,2
A.0.2
B.0.3
C.0.6
D.0.83
A mass attached to a vertical spring has position function given by \( s(t)=5 \sin (2 t) \) where \( t \) is measured in seconds and \( s \) in inches. Find the velocity at time \( t=3 \). in \( / \ma
The velocity of the mass at time (t=3)seconds is v(3) = 10cos(6) m/s.
The given position function of mass attached to a vertical spring is s(t)=5sin(2t)
where t is measured in seconds and
s is measured in inches.
In order to find the velocity at time (t=3)seconds, we need to differentiate the given position function to obtain the velocity function as follows:
\($v(t) = \frac{ds}{dt}$$$$\Rightarrow v(t) = \frac{d}{dt}(5\sin(2t))$$$$\Rightarrow v(t) = 10\cos(2t)$$\)
Hence, the velocity function for the given position function is (v(t)=10cos(2t)).
Now, substituting (t=3) seconds in the above velocity function, we get: \($$v(3) = 10\cos(6)$$\)
Therefore, the velocity of the mass at time (t=3)seconds is v(3) = 10cos(6) m/s.
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If a driver brings a car traveling at 22 m/s to a full stop in 2.0 s with an acceleration of -8 m/s?, then how far did the car travel while braking?
The car traveled a distance of 30.25 meters while braking.
When a car is brought to a full stop from an initial velocity of 22 m/s with an acceleration of -8 m/s^2, we can use the laws of motion to determine the distance traveled by the car while braking.
The relevant equation to use in this case is:
\(v^2 = u^2 + 2as\)
where v is the final velocity (which is 0, since the car comes to a full stop), u is the initial velocity (which is 22 m/s), a is the acceleration (which is \(-8 m/s^2\), since the car is decelerating), and s is the distance traveled while braking.
Substituting the given values into the equation, we get:
\(0^2 = (22 m/s)^2 + 2(-8 m/s^2)s\)
Simplifying this equation, we get:
\(0 = 484 m^2/s^2 - 16s\)
\(16s = 484 m^2/s^2\)
\(s = (484 m^2/s^2) / 16s = 30.25 m\)
Therefore, the car traveled a distance of 30.25 meters while braking.
This calculation shows that the distance traveled by the car while braking depends on the initial velocity of the car and the rate at which it decelerates. In this case, the car was traveling at a high initial velocity of 22 m/s and decelerated at a rate of -8 m/s^2, which resulted in a braking distance of 30.25 meters. If the initial velocity or the deceleration rate were different, the braking distance would also be different.
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a circle is centered at the vertex of an angle, and the angle's rays subtend an arc that is 103.25 cm long. 1/360th of the circumference of the circle is 0.59 cm long. what is the measure of this angle in degrees?
The measure of this angle in degrees is 20.52 degrees.
Step by step explanation:Given data is,1/360th of the circumference of the circle is 0.59 cm long Arc length, s = 103.25 cm We need to find the measure of the angle in degrees. Since we know that, the angle subtended by an arc at the center of the circle is 2θ, where θ is the angle subtended by the arc at any point on the circumference of the circle.And the circumference of the circle is 360θ.
Hence, we can find the length of the circumference of the circle. Circumference of the circle = 360 × 0.59Circumference of the circle = 212.4 cmNow, we can find the radius of the circle.r = s/2πr = 103.25/(2 × π) = 16.441 cmDiameter of the circle = 2 × rDiameter of the circle = 32.882 cmThe circumference of the circle = πdCircumference of the circle = π × 32.882Circumference of the circle = 103.26 cm Now, we can find the angle of the circle. Angle of the circle = 360θ103.26 = 360θθ = 103.26/360θ = 0.286 degrees So, the measure of this angle in degrees is 20.52 degrees.
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Please tell me I have no idea how to do this
Answer:
I guess its like this!!!!!!
solve the following higher order linear ODE:
exercise 2.5.3: find a particular solution of y 00 − 4y 0 4y = e 2x
The general solution for the given higher-order linear ODE is:
y(x) = y_c(x) + y_p(x) = C1 * e^(2x) + C2 * x * e^(2x) + (1/2) * x^2 * e^(2x)
To solve the given higher-order linear ODE, we need to find a particular solution for the equation:
y'' - 4y' + 4y = e^(2x)
First, we find the complementary function (solution of the homogeneous equation) by solving the characteristic equation:
r^2 - 4r + 4 = 0
(r - 2)^2 = 0
The roots are r1 = r2 = 2. Therefore, the complementary function is:
y_c(x) = C1 * e^(2x) + C2 * x * e^(2x)
Next, we find a particular solution y_p(x) by using the method of undetermined coefficients. Since the right-hand side of the equation is e^(2x), we can assume a particular solution of the form:
y_p(x) = A * x^2 * e^(2x)
Taking the first and second derivatives of y_p(x):
y_p'(x) = A * (2x * e^(2x) + 4x^2 * e^(2x))
y_p''(x) = A * (2 * e^(2x) + 8x * e^(2x) + 8x^2 * e^(2x))
Now substitute y_p, y_p', and y_p'' back into the given ODE:
A*(2 * e^(2x) + 8x * e^(2x) + 8x^2 * e^(2x)) - 4A*(2x * e^(2x) + 4x^2 * e^(2x)) + 4A*x^2 * e^(2x) = e^(2x)
Simplify and cancel out the terms:
2A * e^(2x) = e^(2x)
A = 1/2
Now we have the particular solution:
y_p(x) = (1/2) * x^2 * e^(2x)
The general solution for the given higher-order linear ODE is:
y(x) = y_c(x) + y_p(x) = C1 * e^(2x) + C2 * x * e^(2x) + (1/2) * x^2 * e^(2x)
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if johnny had 3 apples and gave Susan 2 how much apples would he have
Answer:
an apple would remain
Step-by-step explanation:
Are the triangles below similar?
A. Yes
B. No
Answer:
No.
Step-by-step explanation:
They are not similar because both don't have the same heights. and same lengths.
Height ( Triangle A ) : 8
Height ( Triangle B ) : 6
Length ( Triangle A ) : 24
Length ( Triangle B ) : 18
Easily compare them like ratios:
8:6 < 24:18
Triangle B. is bigger.
what is 2(5+34-67/45*43)^2 equal to?
The value of the give expression is \(\frac{313}{748845}\) OR 4.18 × 10⁻⁴
Evaluating an ExpressionFrom the question, we are to determine the value of
2(5+34-67/45*43)^2
This can be written as
\(2 (\frac{5+34-67}{45 \times 43 })^{2}\)
First, we will simplify the bracket
\(2 (\frac{-28}{1935 })^{2}\)
Then, we get
\(2 \times \frac{-28}{1935 }\times \frac{-28}{1935 }\)
= \(\frac{1568}{3744225}\)
= \(\frac{313}{748845}\) OR 4.18 × 10⁻⁴
Hence, the value of the give expression is \(\frac{313}{748845}\) OR 4.18 × 10⁻⁴
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I need help asap pls
Answer:
x = 5
Step-by-step explanation:
the 2 legs are congruent ( indicated by the double dash through both ), so
2x = 10 ( divide both sifes by 2 )
x = 5