Answer:
the anser is 7 :)
Step-by-step explanation:
Find the distance traveled in 25 seconds by an object traveling at a velocity of v(t) = 20 + 5cos(t) feet per second
Answer:
499.338 feet
Step-by-step explanation:
You want to know the distance traveled by an object in 25 seconds when its velocity is described by 20+5cos(t) feet per second.
DistanceThe distance an object travels is the integral of its velocity. For the given velocity and time period, the distance is ...
\(\displaystyle d=\int_0^{25}{v(t)}\,dt=\int_0^{25}{(20+5\cos(t))}\,dt=(20t+5\sin(t))|_0^{25}\\\\d=500+5\sin(25)\approx\boxed{499.338\quad\text{feet}}\)
The distance traveled in 25 seconds is 499.33 feet.
It is required to find the distance traveled in 25 seconds.
What is distance?The distance of an object can be defined as the complete path travelled by an object .Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.
Given:
We have to find the distance , we will integrate v(t) from 0 to 25 second.
Consider an object traveling at constant velocity v = k. Then, each second, it travels k feet, so after t seconds, the distance traveled is k*t.
Now, suppose its speed increases by 1 feet/sec . So, estimate for distance traveled after t seconds is
1 + 2 + 3 + 4 + ... + t = t(t+1)/2, or approximately 1/2 t^2.
According to given question we have
Given a velocity function v, the distance s is figured by taking the integral. In this case,
v = 20 + 5 cos(t)
s = 20t + 5 sin(t) from 0 to 25
= s(45)-s(0)
s(0) = 0
so, the distance is
s(25) = 20*25 + 5sin(25)
= 500 -0.661
=499.33 feet.
Therefore, the distance traveled in 25 seconds is 499.33 feet.
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18. Analyze and Persevere A professional
baseball team won 84 games this season.
The team won 14 more games than it
lost. There were no ties. How many games
did the team lose? How many did it play?
Calculation:
The professional baseball team won = 84 games,
According to the data.
Assume that the team lost x games.
The team "won 14 more games than it lost," the problem states.
The term "x+14" could be used to indicate 14 more than x.
Consequently, we can establish an equation.
⇒ x+14 =84.
14 is subtracted from both sides, giving us
⇒ x+14-14 = 84 -14
x = 70.
⇒ 70 games were lost by the team.
The total number of games played = Number of games won + Number of games lost.
= 84 +70 = 154 games.
⇒ Hence the professional basketball teams play a total of 154 games and lost 70 games.
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Kevin buys a dining table and. 8 identical chairs for. $294. The table costs $198. How much does each chair cost? Show as bar models
Answer:
12 dollars per chair
Step-by-step explanation:
294 - 198 = 96
96 divided by 8 = 12
Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options. x2 + (y – 3)2 = 36 x2 + (y – 5)2 = 6 (x – 4)² + y² = 36 (x + 6)² + y² = 144 x2 + (y + 8)2 = 36
The equations which represent circles that have a diameter of 12 units and a center that lies on the y-axis include the following:
(x - 0)² + (y - 3)² = 36
(x - 0)² + (y + 8)² = 36
The equation of a circle.Mathematically, the standard form of the equation of a circle is given by;
(x - h)² + (y - k)² = r²
Where:
h and k represents the coordinates at the center.r represents the radius of a circle.Since the circle has a diameter of 12 units, the radius would be calculated as follows:
Radius, r = diameter/2
Radius, r = 12/2
Radius, r = 6 units.
Also, when the center of this circle lies on the y-axis, it simply means the value of h is zero (0). Therefore, the equations of these circle at points (0, 3) and (0, -8) are given by;
(x - h)² + (y - k)² = r²
(x - 0)² + (y - 3)² = 6²
(x - 0)² + (y - 3)² = 36
(x - h)² + (y - k)² = r²
(x - 0)² + (y - (-8))² = 6²
(x - 0)² + (y + 8)² = 36
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What is the slope of the line that contains these points? х 5 6 7 8
y -5 -6 -7 - 8 8
slope:
Answer:
-6/5
Step-by-step explanation:
The formula for slope is [ y2-y1/x2-x1 ]. Use two of the given points to solve.
-6-6/-5-5
12/-10
-6/5
Got it off the internet hope it helps 8)
Simplify i) ( x-y )( x−y )( x−y )
The simplified expression for ( x - y ) ( x - y ) ( x - y ) is x³ - x²y - xy² + y³.
To simplify ( x - y ) ( x - y ) ( x - y ), we can expand the expression using the distributive property of multiplication. We can also simplify the expression by combining like terms.
In using the distributive property of multiplication, we multiply each term in the first set of parentheses by each term in the second set of parentheses. This gives us:( x - y ) ( x - y ) ( x - y ) = ( x(x - y) - y(x - y) ) ( x - y )= ( x² - xy - xy + y² ) ( x - y )= ( x² - 2xy + y² ) ( x - y )
Now we can further simplify the expression by combining like terms. We can use the difference of squares formula to simplify the second set of parentheses.( x² - 2xy + y² ) ( x - y ) = ( x - y ) ( x - y )²= ( x - y ) ( x² - 2xy + y² )= x³ - x²y - 2xy² + xy² - xy² + y³= x³ - x²y - xy² + y³
Therefore, the simplified expression is x³ - x²y - xy² + y³.
Summary: To simplify ( x - y ) ( x - y ) ( x - y ), we expand the expression using the distributive property of multiplication. We simplify the expression by combining like terms. We use the difference of squares formula to simplify the second set of parentheses. Finally, we simplify the expression further by combining like terms. The simplified expression is x³ - x²y - xy² + y³.
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A
28⁰
78⁰
B
C
F
ABCD is a circle with centre O. BCF is a
straight line. Angle CBD = 28° and angle FCD
= 78°. What is the size of angle BAC?
(A) 28° (B) 50⁰ (C) 74°
(D) 78°
The size of angle BAC in the given circle is 50°
What is a circle?A circle is a round-shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.
Since, no figure is given, we will draw a circle according the given information, [attached in the solution]
So, we get a circle with center O, having chords, BC, which is extended to F, DC and AB,
We have, Angle CBD = 28° and angle FCD = 78°
Therefore,
∠ DCB = 180° - ∠ DCF [Linear pair]
∠ DCB = 180° - 78°
∠ DCB = 102°
In Δ DCB,
∠ DCB + ∠ BCD + ∠ BDC = 180°
∠ BDC = 180° - (102°+28°)
∠ BDC = 50°
Since, the angles made by the same chord are equal in measure,
Therefore,
∠ BDC = ∠ BAC
Therefore,
∠ BAC = 50°
Hence, the size of angle BAC in the given circle is 50°
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convertir 5000 cm a km
Answer:
0.05 kilometer is the answer
Step-by-step explanation:
hope this answer may help you
In the similar triangles below , what is the measure of D
In the given similar triangles below, we have to find the measure of Dwrite. Triangle 1, ABC, is similar to Triangle 2, DEF. The two triangles are similar because their corresponding angles are congruent and their sides are proportional.
In order to find the measure of Dwrite, we can use the concept of proportionality. The sides of similar triangles are proportional to each other.
This means that if we know the ratio of the sides of one triangle, we can use that ratio to find the corresponding sides of the other triangle. We can use this property to find the value of Dwrite.
To start, let's write down the ratio of the sides of Triangle 1 and Triangle 2. We can choose any two corresponding sides to do this, but we'll choose AB and DE because they are easiest to measure: AB/DE = 6/8.5We know that the measure of AB is 6, so we can solve for the measure of DE: DE = AB x (DE/AB)DE = 6 x (8.5/6)DE = 8.5Now we know that the measure of DE is 8.5.
We can use this to find the measure of Dwrite. We know that DE and Dwrite are corresponding sides of Triangle 2 and Triangle 1, respectively.
So we can write a proportion using the ratio of DE to Dwrite: DE/Dwrite = 8.5/xWe know that DE is 8.5, so we can substitute that in:8.5/Dwrite = 8.5/Now we can solve for x by cross-multiplying:8.5x = 8.5Dwrite = 1Therefore, the measure of Dwrite is 1.
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Find the perimeter of the figure shown above with aside length 5 unit
The perimeter of the figure with side length of 5 units is 50 units
How to determine the perimeter of the figureFrom the question, we have the following parameters that can be used in our computation:
Shape = rectangle
Smaller shapes = squares
Side lengths = 5 units
The perimeter of the figure is calculated as
Perimeter = Number of visible sides * Side length of the square shape
In this case, we have
Number of visible sides = 10
Substitute the known values in the above equation, so, we have the following representation
Perimeter = 10 * 5
Evaluate the products
Perimeter = 50 units
Hence, the perimeter is 50 units
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If f(x)=x²+5 and g(x)=3x, find
a. (f + g)(x)
b. (f-g)(x)
C. (f . g)(x)
d. (f/g)(x).
a. (f + g)(x)=______. (Simplify your answer.)
The equivalent expressions are given below;
a) x²+3x+5
b) x²-3x+5
c) 3x³+15x
d) x²+5/3x
Composite functionGiven the following function
f(x)=x²+5 and;
g(x)=3x
a) (f + g)(x) = f(x) + g(x)
(f + g)(x) = x²+5 + 3x
(f + g)(x) = x²+3x+5
b) (f - g)(x) = f(x) - g(x)
(f - g)(x) = x²+5 - 3x
(f - g)(x) = x²-3x+5
c) (f * g)(x) = f(x) * g(x)
(f * g)(x) = 3x(x²+5)
(f * g)(x) = 3x³+15x
d) (f/g)(x) = f(x)/g(x)
(f/g)(x) = x²+5/3x
This expressions gives the equivalent answer.
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7).
2. Hot Text: For each graph, choose the correct sentence to describe the graph.
The graph represents a proportional relationship.
The graph does not represent a proportional relationship.
a. The graph represents a proportional relationship.
b. The graph does not represent a proportional relationship.
c. The graph does not represent a proportional relationship.
d. The graph represents a proportional relationship.
What is a proportional relationship?A proportional relationship is a relationship in which a constant ratio between the output variable and the input variable exists.
The equation that defines the proportional relationship is a linear function with slope k and intercept zero presented as follows:
y = kx.
Hence graphs a and d represent proportional relationship, as they have intercepts at the origin.
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the original price of a pair of shoes are 42$. The sale price is 20% off the original price. what is the amount of the orihinal price
Answer:
$33.60
Step-by-step explanation:
20% = 0.20
0.20 times 42 is 8.40
$42 - $8.40 = $33.60
The function f(x) = -2(4)²+1 +140 represents the number of tokens a child has x hours after arriving at an arcade.
What is the practical domain and range of the function?
Enter your answer by filling in the boxes to correctly complete the statements. If necessary, round to the nearest hundredth.
The practical domain of the situation is ?
The practical range of the situation is ?
A jogger ran 523 miles on Tuesday. This was 214 more miles than she ran on Monday. How many miles did the jogger run on Monday? Enter your answer, as a mixed number in simplest form, in the box.
Answer:
The jogger ran 737 miles on Monday
Step-by-step explanation:
The explanation is simple just add the two numbers( look at the word MORE THAN)
Answer:
309
Step-by-step explanation:
hope it helps have a great day/night :)
100 Points! Geometry question. Identify the similar triangles. Then find each measure. Photo attached. Please show as much work as possible. Thank you!
The similar triangles for this problem are given as follows:
RST and VUT.
Then the measure VT is given as follows:
VT = 5.4 units.
What are similar triangles?Similar triangles are triangles that share these two features listed as follows:
Congruent angle measures, as both triangles have the same angle measures.Proportional side lengths, which helps us find the missing side lengths.Hence the similar triangles for this problem are given as follows:
RST and VUT.
The proportional relationship for the side lengths is given as follows:
6/14 = (x + 2)/(4x - 1).
Applying cross multiplication, the value of x is obtained as follows:
14(x + 2) = 6(4x - 1)
14x + 28 = 24x - 6
10x = 3.4
x = 3.4.
Then the length VT is given as follows:
VT = 3.4 + 2
VT = 5.4 units.
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Help plz:))) I’ll mark u brainliest
Help plz:))) I’ll mark u brainliest
Help plz:))) I’ll mark u brainliest
Help plz:))) I’ll mark u brainliest
Help plz:))) I’ll mark u brainliest
Answer:
28, 60, 27 and 17, 24,17
Step-by-step explanation:
The rule for triangle side lengths is that 2 sides gotta add up to be larger than the other. So ones like 40, 22, 14 wouldnt work since 22 and 14 only add up to 36. If u think about it, the lines wouldnt actually connect in real life.
3.75 +9.25-(-4.75*0.5-0.2*2-3)
Answer:
-7.225 according to a calculator.
what kind of line is this
can i have answer
Answer:
1. intersecting
2. paralle
3. perpendicular
4. intersecting
You buy a 33-pound bag of flour for $9 or you can buy a 1- pound bag for $0.39. Compare the per pound cost for the large and small bag. How much is the pounds per dollars
Answer:
see below
Step-by-step explanation:
9 dollars / 33 lbs = .272727 dollars per lb
.39 / 1 lbs = .39 per lb
The large bag is less expensive
A class has 6 boys and 14 girls. What is the ratio in simplest form?
Answer: If your doing the ratio of boys to girls, it would be 6:14. Simplified- 3:7
Step-by-step explanation:
The factors of 6-1,2,3,6
The factors of 14-1,2,12,14
The common factor of the two #’s is 2 so you would divide both of them by that number. 3 and 7 are prime numbers so you can’t simplify the ratio anymore.
A cylinder has a base area of 100cm and volume of 1500 cm what’s the height
Answer:
we know,
Volume of cylinder = Base area × height
1500= 100×h
so, Height h = 15 cm
What is the equation of the line in slope intercept form?
Answer:
y = x + 60
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 )
calculate m using the slope formula
m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)
with (x₁, y₁ ) = (20, 80) and (x₂, y₂ ) = (40, 100) ← 2 points on the line
m = \(\frac{100-80}{40-20}\) = \(\frac{20}{20}\) = 1
the line crosses the y- axis at (0, 60 ) ⇒ c = 60
y = x + 60 ← equation of line
Consider a recent interaction you have had with a co-worker or item that you saw in the media that might have included logical errors.
Share the example as well as the logical errors that are present in the example.
Discuss some common applications of logic
Logical error example can be people without reasoning out thoughts supporting people who promised them their betterment.
What is Logical Error/Fallacies?
Common thinking flaws called fallacies will impeach the logic of your argument. Fallacies can be irrelevant or invalid arguments, and they are frequently recognised since they don't have any supporting data.
Basic Logic - knowing the study of current reasoning is basic logic.
Logic pertains to all subjects, since people can reason about anything they can think about politics, the art , Literature, business, the sciences and every day problems are all subject open to reasoning.
Few times ago , I was in a political party rally. I observed that one think clever politician knows very well how to manipulate public opinion , contestant addressing and promising about that is not in even going to possible but many of them endorse strong convictions , that whatever he told is going to be true , people don't even think for reason with the promises that he did.
Legislative assembly member's contestant told in his addressing that we promises to all of you we will provide free petrol, diesel, free rice and now he is in the member of legislative assembly, but no promises are fulfilled. How people can't even reason their thought .
Therefore, this is an example of logical error.
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Jenny bought a pair of pants for $19.99 and two shirts for $7.50 each. If she gave the cashier $40.00, how much change did she receive?
19.99 + 15= 34.99
40-34.99 = 12.51
Jenny received $5.01 change.
Given that ABCDEF, solve for x.
A. 3
B. 2
OC. 6
D. 4
The value of side length x (DF) in the triangle is 4.
What is the value of x?The figures in the image is that of two similar triangle.
Triangle ABC is similar to triangle DEF.
From the diagram:
Leg 1 of the smaller triangle DE = 5
Leg 2 of the smaller triangle DF = x
Leg 1 of the larger triangle AB = 30
Leg 2 of the larger triangle AC = 24
To find the value of x, we take the ratio of the sides of the two triangle since they similar:
Hence:
Leg DE : Leg DF = Leg AB : Leg AC
Plug in the values:
5 : x = 30 : 24
5/x = 30/24
Cross multiplying, we get:
30x = 5 × 24
30x = 120
x = 120/30
x = 4
Therefore, the value of x is 4.
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PLz HELP I BEG I GIVE U BRAINLYEST
Answer:
I believe it is 19.8
Step-by-step explanation:
well if 9 is the number then I would do
9.9 +
9.9
______
I get 19.8
Tell me if I am wrong :)
Answer:
a.b+c.d=_
Cancellation of the c here requires that it appears in each additive term of the numerator and denominator: ca + cb cd. = c(a + b) cd. = a + b d but ca + b.
Step-by-step explanatin:
you just had to add both of them together and I showed you how, and what the answer is.
One side of a 216 square foot rectangular room is 18 feet. How long is the other side?
Answer:
216 -18-18= 180 /2= 90
Step-by-step explanation:
thus is how I figured it out cause 2 aides of a rectangle are the same so it would leave the other 2 sides as equal too
Rework problem 17 from section 2.1 of your text, involving an experiment with three possible outcomes. For this problem, assume that outcome O1 has frequency 4/a, outcome O2 has frequency 12/a, and outcome O3 has frequency 3/a.
What is the value of a?
If outcome O₁ has a frequency 4/a, outcome O₂ has a frequency 12/a, and outcome O₃ has frequency 3/a, then the value of a is 19
Frequency of outcome O₁ = 4/a
Frequency of outcome O₂ = 12/a
Frequency of outcome O₃ = 3/a
Let's say 1/a = x
Now, the Frequency of outcome O₁ = 4x
Frequency of outcome O₂ = 12x
Frequency of outcome O₃ = 3x
The sum of the respective frequencies must equal 1.
So, 4x + 12x + 3x = 1
19x = 1
x = 1/19
That means that the “a” in the problem is 19.
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Were the Cubans happy being a Spanish colony? What happened that allowed for the Cubans to gain more freedom? (social studies)