Answer:
Step-by-step explanation:
15. Darius has a cylindrical can that is completely full of sparkling water. He also has an empty cone-shaped paper cup. The height and radius of the can and cup are shown. Darius pours sparkling water from the can into the paper cup until it is completely full. Approximately, how many centimeters high is the sparkling water left in the can?
9.2 b. 9.9 c.8.4 d. 8.6
The height of water left in the can is determined as 9.9 cm.
option B.
What is the height of water left in the can?The height of water left in the can is calculated by the difference between the volume of a cylinder and volume of a cone.
The volume of the cylindrical can is calculated as;
V = πr²h
where;
r is the radiush is the heightV = π(4.6 cm)²(13.5 cm)
V = 897.43 cm³
The volume of the cone is calculated as;
V = ¹/₃ πr²h
V = ¹/₃ π(5.1 cm)²( 8.7 cm )
V = 236.97 cm³
Difference in volume = 897.43 cm³ - 236.97 cm³
ΔV = 660.46 cm³
The height of water left in the can is calculated as follows;
ΔV = πr²h
h = ΔV / πr²
h = ( 660.46 ) / (π x 4.6²)
h = 9.9 cm
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Paul bought 4 DVDs for $9.95 each. What was his total cost?
Answer:
$39.80
Step-by-step explanation:
We need to set up a small equation in order to solve this. We are given the number of DVDs (4) and the cost of each ($9.95)Our equation is $9.95 • 4 = ?As you can see, we need to multiply $9.95 by 4 in order to get the total cost.Once we multiply, we get $39.80If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis.
y = 14 radical(x), y = 0, x = 1; about x = −2
The volume generated by rotating the region bounded by y=14√x, y=0, and x=1 about x=-2 is approximately 188.5 cubic units.
To use the method of cylindrical shells, we need to consider a vertical strip of width dx at a distance x from the axis of rotation. When this strip is rotated about the axis, it generates a cylindrical shell with radius (x+2) and height y = 14√x.
The volume of this cylindrical shell can be expressed as:
dV = 2π(x+2)(14√x)dx
Integrating this expression from x=1 to x=4 (the limits of the region), we get:
V = ∫1^4 2π(x+2)(14√x)dx
= 28π ∫1^4 (x+2)√x dx
= 28π (∫1^4 x√x dx + ∫1^4 2√x dx)
= 28π [2/5 x^(5/2) + 4/3 x^(3/2)]_1^4
= 28π [(2/5 4^(5/2) + 4/3 4^(3/2)) - (2/5 1^(5/2) + 4/3 1^(3/2))]
= 28π [(32/5 + 16/3) - (2/5 + 4/3)]
= 28π (102/15)
= 188.4955592
Therefore, the volume generated by rotating the region bounded by y=14√x, y=0, and x=1 about x=-2 is approximately 188.5 cubic units.
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When simplified, the expression
[ x1/8] [x3/8] is 12. Which is a possible value of x?
6
24
144
256
Answer:
The answer is 144
The value of x from the given equation is 144. Therefore, option C is the correct answer.
What is the exponent?Exponent is defined as the method of expressing large numbers in terms of powers. That means, exponent refers to how many times a number multiplied by itself.
The given expression is \((x^{\frac{1}{8} })(x^{\frac{3}{8} })\).
Using exponent formula aⁿ×aˣ=aⁿ⁺ˣ we get
\((x^{\frac{1}{8} })(x^{\frac{3}{8} })\) = \(x^{\frac{1}{8} +\frac{3}{8} }\)
= \(x^{\frac{4}{8}}\)
= \(x^{\frac{1}{2}}\)
The simplified expression is equal to 12.
So, \(x^{\frac{1}{2}}\)=12
Squaring on both side, we get
x=12²
x=144
Therefore, option C is the correct answer.
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The equation 18+0.25p= c gives the cost c in dollars that a store charges to deliver an appliance that weighs pounds. Use the equation and a table to find the weight of an appliance that costs $58 to deliver.
In a class of 200 students. 20 offered Physics, 90 offered Chemistry. Offered Mathematics while 24 did not offer any of the three subjects. Twenty three (23) students offered Physics and
Chemistry, 41 offered Chemistry and mathematics while 8 offered all three subjects.
Draw a Venn diagram to illustrate the information
Find the probability that a student selected at random from the class offered i.
Physics only ii.Exactly two of the subjects
Answer:
??????????????????????
Step-by-step explanation:
mmm+#-#+273(-2(2
What is the midpoint of the line segment graphed below?
(-1,2)
(9,5)
Answer:
1,3
Step-by-step explanation:
Answer:
(4, 2.5 )
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
( \(\frac{x_{1}+x_{2} }{2}\), \(\frac{y_{1}+y_{2} }{2}\) )
Here (x₁, y₁ ) = (- 1, 2) and (x₂, y₂ ) = (9, 5) , then
midpoint = ( \(\frac{-1+9}{2}\), \(\frac{2+5}{2}\) ) = ( \(\frac{8}{2}\), \(\frac{7}{2}\) ) = (4, 3.5 )
a spinner with three equal-sized sections marked A,B, and C is spun 100 times. the result of the experiment are shown in the table what is the experimental probability of landing on A on C
The experimental probability of landing on A is 0.3 and the experimental probability of landing on C is 0.4.
What is probability?
Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 means the event is impossible and 1 means the event is certain to happen.
To find the experimental probability of landing on A or C, we need to add up the number of times the spinner landed on A and C, and then divide that by the total number of spins.
From the table, we can see that the spinner landed on A 30 times and on C 40 times. Therefore, the total number of times the spinner landed on either A or C is:
30 + 40 = 70
So the experimental probability of landing on A or C is:
70/100 = 0.7
However, we need to find the experimental probability of landing on A or C separately. To do that, we need to divide the number of times the spinner landed on A or C individually by the total number of spins:
Experimental probability of landing on A = 30/100 = 0.3
Experimental probability of landing on C = 40/100 = 0.4
Therefore, the experimental probability of landing on A is 0.3 and the experimental probability of landing on C is 0.4.
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Prove or disprove. If R₁ and R2 are equivalence relations then R₁ ∩ R₂ is an equivalence relation.
The statement "If R₁ and R₂ are equivalence relations, then R₁ ∩ R₂ is an equivalence relation" is true. The intersection of two equivalence relations is also an equivalence relation.
To prove that the intersection of two equivalence relations is an equivalence relation, we need to demonstrate that it satisfies the three properties of reflexivity, symmetry, and transitivity.
Reflexivity: Since R₁ and R₂ are equivalence relations, they both satisfy reflexivity. Therefore, every element is related to itself in both R₁ and R₂. As a result, the intersection R₁ ∩ R₂ will also contain the pairs where elements are related to themselves, making it reflexive.
Symmetry: Similarly, since R₁ and R₂ are equivalence relations, they both satisfy symmetry. This means that if (a, b) is in R₁, then (b, a) is also in R₁. The same holds for R₂. Therefore, the intersection R₁ ∩ R₂ will also have the property of symmetry.
Transitivity: Again, as R₁ and R₂ are equivalence relations, they both satisfy transitivity. If (a, b) and (b, c) are in R₁, then (a, c) is also in R₁. The same holds for R₂. Hence, the intersection R₁ ∩ R₂ will also satisfy the transitivity property.
Since R₁ ∩ R₂ satisfies all three properties of an equivalence relation, we can conclude that if R₁ and R₂ are equivalence relations, then R₁ ∩ R₂ is indeed an equivalence relation.
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what is the value of x in 36/45 = x/5
Answer:
x = 4
Step-by-step explanation:
Cancel common factor of 9,
(x/5)=(4/5)
Multiply both sides by 5,
(5x/5)=(20/5)
Simplify to get x = 4
BC is parallel to DE.
AB= X, AD=5, AC=X+1 and AE=7. The value of X is?
A: 0.5
B: 1.5
C: 2.5
D: 3.5
Answer:
x= 2.5
Step-by-step explanation:
We can use ratios to solve
AB AD
------- = ----------
AC AE
X 5
------- = ----------
x+1 7
Using cross products
7x = 5(x+1)
Distribute
7x = 5x+5
subtract 5x
7x-5x = 5x-5x+5
2x= 5
Divide by 2
2x/2 = 5/2
x = 2.5
Camilla went to the museum at 10:47 a.m. If she spent 2 hours and 24 minutes at the museum, at what time did Camilla leave?
Answer:
She left the museum at 1:11pm
Step-by-step explanation:
On a certain map, 3 centimetres represents 25 kilometres. How many kilometres does 1 1/2 decimeters represent?
Answer:
125 kilometres does 1 1/2 decimetres represent
Step-by-step explanation:
Given
3 cm = 25 KM (Representative)
we have to find value of 1 1/2 decimetre
1 1/2 decimetre = (1*2+1)/2 decimetre = 3/2 decimetre
we know
1 decimetres = 10 cm
3/2 decimetres = 3/2 *10 cm = 15 cm
thus, we have to find 15 cm on the 3 cm = 25 KM map.
3 cm = 25 KM
1 cm = 25/3 KM
15 cm = 15*25/3 KM = 125 KM
Thus,
125 kilometres does 1 1/2 decimetres represent
Is the following figure a parallelogram? Why?
P
O No, opposite angles are congruent.
O Yes, opposite sides are congruent.
O No, opposite sides are congruent.
O Yes, opposite angles are congruent.
a triangle has two sides of length 18 and 3. what is the largest possible whole-number length for the third side?
Answer:
20
Step-by-step explanation:
Triangle inequality says that the third side can only be 18-3...15, that is bigger than 15.
And 18+3... 21, that is smaller than 21.
If the third side is 21, the 18 and the 3 will just lay right on top of the 21 and not make a triangle. So it has to be 20 in order to be a whole number.
the foreign language club is showing a four-movie marathon of subtitled movies. how many ways can they choose from the available?
The number of ways the foreign language club can choose 4 movies from the available is \(nC4 = n! / 4!(n-4)!\).
To calculate the number of ways the foreign language club can choose four movies from the available subtitled movies, we need to use the combination formula, which is:
\(nCr = n! / r!(n-r)!\)
Where n is the total number of available subtitled movies and r is the number of movies to choose (in this case, r=4).
Assuming there are at least four subtitled movies available, the number of ways to choose four movies would be:
\(nC4 = n! / 4!(n-4)!\)
Simplifying the equation further, we have:
\(nC4 = (n * (n-1) * (n-2) * (n-3)) / 4 * 3 * 2 *1\)
Therefore, the number of ways the foreign language club can choose four movies from the available subtitled movies is given by the formula nC4.
The formula calculates the number of possible combinations of four movies that can be selected from the total number of available subtitled movies, without regard to the order in which they are shown.
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Pls give me the answer to
12 – 3x = -6х
Answer:
-4
Step-by-step explanation:
Move variables to one side and numbers on the other.
12 - 3x = -6x
+ 3x +3x
12 = -3x
/-3 /-3
-4 = x
Which graph represents a function
Answer:
C
Step-by-step explanation:
Because for every x value there is only one y value
Label the sides of each triangle using hyp, opp and adj
Let us label the sides of each triangle using hypotenuse (hyp), opposite (opp), and adjacent (adj) terms.Triangle 1 In the above right triangle, the hypotenuse is opposite to the right angle and the other two sides are adjacent to the right angle.
Therefore,AB is the adjacent side to angle θAC is the hypotenuse BC is the opposite side to angle θThus, the sides of Triangle 1 are labeled as follows:Adjacent side to angle θ is AB which is labeled as ADJ.Hypotenuse is AC which is labeled as HYP. Opposite side to angle θ is BC which is labeled as OPP.Triangle 2In the above right triangle, the hypotenuse is opposite to the right angle and the other two sides are adjacent to the right angle. Therefore,XZ is the adjacent side to angle θ XY is the hypotenuse YZ is the opposite side to angle θ.
Thus, the sides of Triangle 2 are labeled as follows:Adjacent side to angle θ is XZ which is labeled as ADJ.Hypotenuse is XY which is labeled as HYP. Opposite side to angle θ is YZ which is labeled as OPP.
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. for people similar to those in the study, do the data provide convincing statistical evidence that the proportion who would be classified as normal after one month of taking cinnamon is greater than the proportion who would be classified as normal after one month of not taking cinnamon?
It seems that a study was conducted to investigate the effects of cinnamon on people's health. The question at hand is whether the data from the study provide convincing statistical evidence that taking cinnamon for one month results in a higher proportion of people being classified as normal compared to those who do not take cinnamon.
However, in general, statistical evidence is considered convincing when the probability of the observed results occurring by chance alone is very low. This is typically determined by calculating a p-value, which is a measure of the probability of obtaining results as extreme as the ones observed, assuming that there is no real effect of the intervention being tested (in this case, cinnamon).
Without more information, it is difficult to say whether the data from this study provide convincing statistical evidence for the effectiveness of cinnamon. It is also important to note that statistical evidence alone does not necessarily provide a complete picture of whether a treatment or intervention is effective or safe. Other factors, such as potential side effects and the overall health and needs of the people being treated, should also be considered.
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What is the slope of y=5/4x-7/4
The answer is:
5/4
Work/explanation:
Let's work out the slope of the line.
The equation is in y = mx + b form where m = slope; b = y intercept.
Similarly, in y=5/4x - 7/4, the slope is 5/4.
Hence, the answer is 5/4.please help! write the function for the graph:
Answer: y=\(\sqrt[3]{x}\)-4
Step-by-step explanation:
a circle garden has an area 25 pi if the radius is increase by 2 metters and fencing a soldonly in one merner selection, how much fencing is needed to keep our rabbits
The fencing needed to keep our rabbits is approximately 44 meters
Given that a circle garden has an area of 25π and the radius is increased by 2 meters and fencing is sold only in one meter section. We need to find how much fencing is needed to keep our rabbits.
Step 1: Area of a circle is given by:
A = πr²
where
r is the radius of the circle garden.
So, the area of circle garden with radius r is given by:
25π = πr²
Dividing both sides by π,
we get:
r² = 25r = ± 5
The radius cannot be negative.
So, r = 5 m
Step 2: When the radius is increased by 2 m, the new radius is:
r + 2 = 5 + 2
= 7 m
Step 3: The length of fencing required will be equal to the circumference of the new circle with radius 7 m.
Circumference of the new circle with radius 7 m is given by:
C = 2πr
= 2π(7)
≈ 43.98 m
Therefore, the fencing needed to keep our rabbits is approximately 44 meters.
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Gerardo claims the figures shown in the graph are similar. Write a series of transformations with explanations to support Gerardo’s claim. *
Answer:
A dilation by 2 and a rotation about the origin at 90 degrees counter-clockwise
Step-by-step explanation:
Already taken geometry.
The indicated functiony1(x)is a solution of the given differential equation. Use reduction of order or formula (5) in Section 4.2,y2 = y1(x)
e−∫P(x) dx
y
2
1(x)
integral.gif
dx (5)
as instructed, to find a second solution
y2(x).
x2y'' − xy' + 26y = 0; y1 = x sin(5 ln x)
y2 =
The second solution is: y2(x) = -1 / x¹⁸ + 29x sin(5lnx) ∫ e^(29u) / sin(u) du/5 + Cx sin(5lnx) where C is a constant of integration.
To find a second solution y2(x) for the given differential equation x²y'' - xy' + 26y = 0 with the function y1(x) = x sin(5 ln x), we'll use the reduction of order formula:y2(x) = y1(x) * e^(-∫P(x)dx) * ∫(e^(∫P(x)dx) / y1(x)^2 dx)
First, rewrite the given differential equation in the standard form:
y'' - (1/x)y' + (26/x²)y = 0
From this, we can identify P(x) = -1/x.
Now, calculate the integral of P(x):
∫(-1/x) dx = - ln|x|
Now, apply the reduction of order formula:
y2(x) = x sin(5 ln x) * e^(ln|x|) * ∫(e^(-ln|x|) / (x sin(5 ln x))² dx)
Simplify the equation:
y2(x) = x sin(5 ln x) * x * ∫(1 / x² (x sin(5 ln x))² dx)
y2(x) = x² sin(5 ln x) * ∫(1 / (x² sin²(5 ln x)) dx)
Now, you can solve the remaining integral to find the second solution y2(x) for the given differential equation.
To find the second solution y2(x), we will use the reduction of order method. Let's assume that y2(x) = v(x) y1(x), where v(x) is an unknown function. Then, we can find y2'(x) and y2''(x) as follows:
y2'(x) = v(x) y1'(x) + v'(x) y1(x)
y2''(x) = v(x) y1''(x) + 2v'(x) y1'(x) + v''(x) y1(x)
Substituting y1(x) and its derivatives into the differential equation and using the above expressions for y2(x) and its derivatives, we get:
x^2 (v(x) y1''(x) + 2v'(x) y1'(x) + v''(x) y1(x)) - x(v(x) y1'(x) + v'(x) y1(x)) + 26v(x) y1(x) = 0
Dividing both sides by x^2 y1(x), we obtain:
v(x) y1''(x) + 2v'(x) y1'(x) + (v''(x) + (26/x^2) v(x)) y1(x) - (1/x) v'(x) y1(x) = 0
Since y1(x) is a solution of the differential equation, we have:
x^2 y1''(x) - x y1'(x) + 26y1(x) = 0
Substituting y1(x) and its derivatives into the above equation, we get:
x^2 (5v'(x) cos(5lnx) + (25/x) v(x) sin(5lnx)) - x(v(x) cos(5lnx) + v'(x) x sin(5lnx)) + 26v(x) x sin(5lnx) = 0
Dividing both sides by x sin(5lnx), we obtain:
5x v'(x) + (25/x) v(x) - v'(x) - 5v(x)/x + v'(x) + 26v(x)/x = 0
Simplifying the above expression, we get:
v''(x) + (1/x) v'(x) + (1/x² - 31/x) v(x) = 0
This is a second-order linear homogeneous differential equation with variable coefficients. We can use formula (5) in Section 4.2 to find the second linearly independent solution:
y2(x) = y1(x) ∫ e^(-∫P(x) dx) / y1^2(x) dx
where P(x) = 1/x - 31/x^2. Substituting y1(x) and P(x) into the above formula, we get:
y2(x) = x sin(5lnx) ∫ e^(-∫(1/x - 31/x²) dx) / (x sin(5lnx))² dx
Simplifying the exponent and the denominator, we get:
y2(x) = x sin(5lnx) ∫ e^(31lnx - ln(x)) / x^2sin²(5lnx) dx
y2(x) = x sin(5lnx) ∫ x^30 / sin²(5lnx) dx
Let u = 5lnx, then du/dx = 5/x, and dx = e^(-u)/5 du. Substituting u and dx into the integral, we get:
y2(x) = x sin(5lnx) ∫ e^(30u) / sin²(u) e^(-u) du/5
y2(x) = x sin(5lnx) ∫ e^(29u) / sin²(u) du/5
Using integration by parts, we can find that:
∫ e^(29u) / sin^2(u) du = -e^(29u) / sin(u) - 29 ∫ e^(29u) / sin(u) du + C
where C is a constant of integration. Substituting this result into the expression for y2(x), we get:
y2(x) = -x sin(5lnx) e^(29lnx - 5lnx) / sin(5lnx) - 29x sin(5lnx) ∫ e^(29u) / sin(u) du/5 + Cx sin(5lnx)
Simplifying the first term and using the substitution u = 5lnx, we get:
y2(x) = -x⁶ e^(24lnx) + 29x sin(5lnx) ∫ e^(29u) / sin(u) du/5 + Cx sin(5lnx)
y2(x) = -x⁶ / x^24 + 29x sin(5lnx) ∫ e^(29u) / sin(u) du/5 + Cx sin(5lnx)
y2(x) = -1 / x¹⁸ + 29x sin(5lnx) ∫ e^(29u) / sin(u) du/5 + Cx sin(5lnx)
Therefore, the second solution is: y2(x) = -1 / x¹⁸ + 29x sin(5lnx) ∫ e^(29u) / sin(u) du/5 + Cx sin(5lnx) where C is a constant of integration.
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PLEASE HURRY!!
A cone has a height of 7 ft and a radius of 4 ft. Which equation can find the volume of the cone?
V=52172(4382
v-264217)ft
V = 3x(72)(4) ft
V-37(42)(7)ft?
Answer:
V = π*r^2*h/3
the formula not sure which answer represent that
117.29 ft^3
Step-by-step explanation:
(9x10^12)-(8.1x10^9)
Answer:
8.99.19 × 10^12 or
8991900000000
Step-by-step explanation:
9000000000000 (12 zeros)
Minus
8100000000 (8 zeros, the 1 takes the 9th decimal place)
Equals = 8991900000000
what is the area of the triangle.
Answer:
A=hbb= 2
Step-by-step explanation:
your welcome plz brainlist
Answer:
21.75u2
Step-by-step explanation:
first use pythag for this
use rule c2=b2+a2
reverse the rule so that
b2=c2-a2
b2=100-81
b2=19
b=4.35
how u got the height of the triangle
use formula bh/2
10x4.35/2
=43.5/2
=21.75u2
Please help!!! Angles!
Answer:
m∠JKM = 63°
m∠MKL = 27°
Step-by-step explanation:
Since ∠JKL is a right angle. This means that by summing up both m∠JKM and m∠MKL will result in the same as ∠JKL figure. Thus, m∠JKM + m∠MKL = m∠JKL which is 90° by a right angle definition.
\(\displaystyle{\left(12x+3\right)+\left(6x-3\right) = 90}\)
Solve the equation for x:
\(\displaystyle{12x+3+6x-3 = 90}\\\\\displaystyle{18x=90}\\\\\displaystyle{x=5}\)
We know that x = 5. Next, we are going to substitute x = 5 in m∠JKM and m∠MKL. Thus,
m∠JKM = 12(5) + 3 = 60 - 3 = 63°
m∠MKL = 6(5) - 3 = 30 - 3 = 27°
Can someone help me with this please?
Answer:
D
Step-by-step explanation:
Left side of graph having a y almost =0 but not on the line of y=0