Answer:
6×2 = 12
Step-by-step explanation:
for each of the 6 possible outcomes of the die are 2 possible outcomes of the coin.
so, 6×2 = 12 different possible outcomes.
find the area between a large loop and the enclosed small loop of the curve r = 2 + 4 cos(3θ).
Therefore, the area between the large loop and the small loop of the curve r = 2 + 4cos(3θ) is 70π/3.
To find the area between the large loop and the small loop of the curve, we need to find the points of intersection of the curve with itself.
Setting the equation of the curve equal to itself, we have:
2 + 4cos(3θ) = 2 + 4cos(3(θ + π))
Simplifying and solving for θ, we get:
cos(3θ) = -cos(3θ + 3π)
cos(3θ) + cos(3θ + 3π) = 0
Using the sum to product formula, we get:
2cos(3θ + 3π/2)cos(3π/2) = 0
cos(3θ + 3π/2) = 0
3θ + 3π/2 = π/2, 3π/2, 5π/2, 7π/2, ...
Solving for θ, we get:
θ = -π/6, -π/18, π/6, π/2, 5π/6, 7π/6, 3π/2, 11π/6
We can see that there are two small loops between θ = -π/6 and π/6, and two large loops between θ = π/6 and π/2, and between θ = 5π/6 and 7π/6.
To find the area between the large loop and the small loop, we need to integrate the area between the curve and the x-axis from θ = -π/6 to π/6, and subtract the area between the curve and the x-axis from θ = π/6 to π/2, and from θ = 5π/6 to 7π/6.
Using the formula for the area enclosed by a polar curve, we have:
A = 1/2 ∫[a,b] (r(θ))^2 dθ
where a and b are the angles of intersection.
For the small loops, we have:
A1 = 1/2 ∫[-π/6,π/6] (2 + 4cos(3θ))^2 dθ
Using trigonometric identities, we can simplify this to:
A1 = 1/2 ∫[-π/6,π/6] 20 + 16cos(6θ) + 8cos(3θ) dθ
Evaluating the integral, we get:
A1 = 10π/3
For the large loops, we have:
A2 = 1/2 (∫[π/6,π/2] (2 + 4cos(3θ))^2 dθ + ∫[5π/6,7π/6] (2 + 4cos(3θ))^2 dθ)
Using the same trigonometric identities, we can simplify this to:
A2 = 1/2 (∫[π/6,π/2] 20 + 16cos(6θ) + 8cos(3θ) dθ + ∫[5π/6,7π/6] 20 + 16cos(6θ) + 8cos(3θ) dθ)
Evaluating the integrals, we get:
A2 = 80π/3
Therefore, the area between the large loop and the small loop of the curve r = 2 + 4cos(3θ) is:
A = A2 - A1 = (80π/3) - (10π/3) = 70π/3
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The sum of three times x and y equal to 5
The sum of three and the product of x and y ia equal to 5
The product of three times x and y equal to 5
The product of three and the sum of x and y is equal to 5
Answer:
The sum of three and xy is equal to 5
or
The difference of xy and 3 is 5
Step-by-step explanation:
\({ \tt{xy = 5 + 3}} \\ \)
Can somebody help me please?
Answer:
b. two solutions
Step-by-step explanation:
Answer:
Two Solutions.
Step-by-step explanation:
PLS PLS SOMEONE HELP ME WITH THIS QUESTION!!!! WILL MARK THE BEST ANSWER BRAINLIEST
Answer:
H)
Step-by-step explanation:
1/7 in decimal form has no three's.
Can y’all Plz help me ??(Show ya work) It Says What Value of X makes this equation true
Answer:
\(0.6x - 0.1x = 7 + 5 \\ 0.5x = 12 \\ x = \frac{12}{0.5} = 24\)
A pipe takes 6 minutes to fill 3.4 of a water tank how long would it take to fill the entire tank?
x = 20.4 it take to fill the entire tank.
How to calculate how long would it take to fill the entire tank?Calculate a tank's total capacity and the volume that is filled in gallons and litres for tanks like water and oil storage. assumes the tank's interior measurements.
You can enter metric dimensions in metres (m) or centimetres, or U.S. dimensions in feet (ft) or inches (in) (cm). Results are given in fluid US gallons, fluid Imperial (UK) gallons, fluid cubic feet (ft3), fluid metric litres (fl), and fluid cubic metres (m3).
x = total volume of the entire tank.
We can suggest the following equation:
6 minutes
6 minutes to fill 3.4
x=6*3.4=20.4
x=20.4
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Someone please help me
Answer:
-3/10
Step-by-step explanation:
The fraction would be -30/100 because the man is descending.
-30/100 = -3/10 simplified.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
HELP ME!!!!!!!!!!! LEAP PRACTICE (MATH)!!!!!!!!!
The question is : Which number line represents all possible numbers of signatures Ali could collect in each of the remaining weeks so that he will have enough signatures to submit the petition?
The number line represents all possible numbers of signatures Ali could collect is Number line A.
We have,
Ali currently has 520 signatures.
Now, number of signatures Ali need
= 1,000 - 520
= 480
So, the possible number depending on how many weeks he wants to spend getting signatures.
480/6 = 80
480/5 = 96
480/4 = 120
480/3 = 160
480/2 = 240
480/1 = 480
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y=5575(0.65)
A. Does this function represent exponential growth or exponential decay?
B. What is your initial value?
C. What is the rate of growth or rate of decay?
Answer:
A.) exponential decay
B.) 5575
C.) 65%
Step-by-step explanation:
This year, Benny is 12 years old, and his mom is 48 years old.
a. What percent of his mom's age is Benny's age?
b. What percent of Benny's age is his mom's age?
Choose the two correct answers.
A 25%25%
B 20%20%
C 200%200%
D 400%400%
E 30%30%
F 300%
a. The percent of Benny's mom's age to his age is 400%.
b. Benny's mom's age is 400% of his age.
What is a percent of numbers?
The percent of a number is its fraction that is expressed as percentage. Thus the percentage of a number or part of a number can be determined.
Considering the given question, the years of Benny and that of his mom were given as;
Benny's age = 12 years
His mom's age = 48 years
Thus we can deduce that;
a. The percent of his mom's age to that of Benny's = 48/ 12 * 100%
= 400%
b. Benny's mom's age is 400% of his age.
Therefore, the correct option to be selected is D.
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The product of five and a number, increased by 9 is equal to fifteen less than three times then
number. Write an equation, solve, and find the number.
Answer:
x = -12
Step-by-step explanation:
Let x be the number.
The product of 5 and x increased by 9 is equal to 15 less than 3 times x.
5x + 9 = 3x - 15.
We can isolate x, getting (5-3)x = -15-9
Then we can solve:
2x = -24
x = -12.
The required number is -12.
What is an equation?An equation is a mathematical statement that shows that two mathematical expressions are equal.
Given that, The product of five and a number, increased by 9 is equal to fifteen less than three times then number.
Let x be the number.
Establishing the equation,
5x + 9 = 3x - 15.
(5-3)x = -15-9
Then we can solve:
2x = -24
x = -12.
Hence, the number is -12
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A person places $6440 in an investment account earning an annual rate of 6.8%, compounded continuously. Using the formula V = P e r t V=Pe rt , where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 8 years.
Answer:
In 8 years, you will have $11,094.81
Step-by-step explanation:
Answer:
V=11095.3771≈11095.38
Step-by-step explanation:
Help please ...A square field has an area of 479 ft2. What is the approximate length of a side of the field? Give your answer to the nearest foot. Explain your response.
you do 479 x 2 = 958 there is your answer your welcome
50 POINTS!! Scientists measure a bacteria population and find that it is 10,000. Five days later,
they find that the population has doubled. Which function f could describe the
bacteria population d days after the scientists first measured it, assuming it grows
exponentially?
According to the solving function f could describe the bacteria population d days after the scientists first measured it, assuming it grows exponentially F(d) = 10000 - a\(^\frac{d}{5}\).
What is function, exactly?A mathematical expression, rule, or law known as a function defines the relationship between two independent variables and a dependent variable (the dependent variable). In mathematics, functions are often utilised, and they are essential for creating physical connections in the sciences.
According to the given information:Substituting d = 5 and f(d)
Solution: fid) = 10000⋅ ad
{substitute d=5 and fid)=20000 into fid=10000. ady
10000- a⁵ =20000
a⁵ =2\(^\frac{1}{5}\)
a = 2
F(d) = 10000 - a\(^\frac{d}{5}\)
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In how many ways can 3
person study groups be
selected from a class of 25
students?
There are 2300 ways by which we can select 3 students out of 25 students.
What is Combination?Combinations are selections made by taking some or all of a number of objects, irrespective of their arrangements.
Here total number of Students = 25
Number of selection = 3
Now,
Total number of ways by which we can select 3 out of 25 = ²⁵C₃
= 25!/3!.22!
= 25 X 24 X 23 X 22! / 3X2X1 X 22!
= 13800 / 6
= 2300
Thus, there are 2300 ways by which we can select 3 students out of 25 students.
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T = WP [ M² - ( M-S)² ]
Answer:
W PM^2 − WP(M−S)^2=T
Step-by-step explanation:
this is what mathaway said
A firm has a loss level EBIT of $175m and an expected EBIT of $200m with a standard deviation of $50m. What is the z-score? What is the probability that the firm WILL have a negative EPS? A z-score of -1.20 would be entered as - 1.20. A probability of 37.25% should be entered as 37.25.
The required z-score is -0.5 and the probability that the firm WILL have a negative EPS is 30.85%.
Firm has a loss level EBIT of $175m and an expected EBIT of $200m with a standard deviation of $50m.
Z-score = (EBIT - Expected EBIT) / Standard deviation= (175 - 200) / 50= -0.5
Probability of having a negative EPS:
To find the probability that the firm will have a negative EPS, we need to find the area to the left of Z-score. As the Z-score is negative, we will be finding the left-tail probability using the standard normal table from the link below:
The area to the left of Z-score (0.5) is 0.3085 or 30.85%.
Therefore, the probability that the firm WILL have a negative EPS is 30.85%.
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1. what happened when you pressed on the balloon stretched over the jar? what does this result represent?
The balloon will be collapsed due to the excess pressure.
what happened?if we press on a balloon that is already filled by air stretched over the jar, the air of the jar will enter the balloon and create excess pressure beyond its tolerance and finally the balloon will be collapsed.
what we understand by the result?as the air-filled balloon is pressed directly over a jar, there is no way to leakage of air, besides the air of jar enter the balloon causes high pressure on the wall of balloon and finally it is destroyed. The result represents the presence of gases inside any empty bottle as well as any jar.
hence, we understand that every empty jar or bottle has gaseous substances with them.
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Please help giving up 20 points for answers
Answer:
Question 2: 6x-21
Question 1: -9x+3
Step-by-step explanation:
Assume that we have two events, A and B, that are mutually exclusive. Assume further that we know P(A) = 0.30 and P(B) =0.40.
1. What is P(A B)?
2. What is P(A | B)?
3. Is P(A | B) equal to P(A)?
4. A student in statistics argues that the concepts of mutually exclusive events and independent events are really the same, and that if events are mutually exclusive they must be independent. Is this statement accurate?
5. What general conclusion would you make about mutually exclusive and independent events given the results of this problem?
1) The value of P(A∩B) = 0.
2) The value of P(A|B) = 0.
3) P(A|B) is not equal to P(A). A and B are independent events.
4) The statement "Mutually exclusive events and independent events are really the same, and that if events are mutually exclusive they must be independent." is not accurate.
5) We can conclude that mutually exclusive events have a probability of intersection of zero and are not independent.
1) Since A and B are mutually exclusive, they cannot occur at the same time, so P(A∩B) = 0.
2) The conditional probability of A given B is defined as the probability of A occurring given that B has occurred. Since A and B are mutually exclusive, if B has occurred, then A cannot occur. Therefore, P(A|B) = 0.
3) No, P(A|B) is not equal to P(A). Since B has occurred, the sample space has been reduced to only those outcomes in which B has occurred. Therefore, the probability of A given that B has occurred can only be determined from the portion of the sample space in which both A and B occur.
However, since A and B are mutually exclusive, this probability is zero. Therefore, P(A|B) ≠ P(A).
4) The statement is not accurate. Mutually exclusive events and independent events are different concepts. Two events are mutually exclusive if they cannot occur at the same time, whereas two events are independent if the occurrence of one event does not affect the probability of the other event.
If two events are mutually exclusive, they are not independent because the occurrence of one event precludes the occurrence of the other event.
5) Mutually exclusive events have a relationship where if one event occurs, the other cannot. In contrast, independent events are events where the occurrence of one event does not affect the probability of the other event occurring.
Therefore, we can conclude that mutually exclusive events and independent events are not the same concept, and we must be careful not to confuse them.
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how many total calories are available from a serving of crackers that contains 4 grams of fat, 21 grams of carbohydrate and 2 grams of protein?
What is the value of x?
Answer:
46°
Step-by-step explanation:
from large triangle:
let the third unknown angle be 'a'
then,
a+x+7+85=180
a=88-x
now,from small triangle,
let the third unknown angle be 'b'
then,
b+x+2x=180
b=180-3x
b=a (vertically opposite angles)
then,
180-3x=88-x
2x=92
x=46
What are the roots of the function f(x) = x2 + 2x – 1? a. x = ± √ _ 2 b. x = − 1 ± √ _ 2 c. x = 2 ± √ _ 2 d. x = 1 ± √ _ 2
Step-by-step explanation:
Root of the function, where y = 0
f(x) = x² + 2x - 1
0 = x² + 2x - 1
x² + 2x - 1 = 0
x² + 2x = 1
x² + 2x + 1 = 1 + 1
(x + 1)² = 2
x + 1 = ±√2
x = -1 ± √2
Roots → x = -1 ± √2
Given the vector fields, compute the desired integral using one of the three main theorems. (a) Let F(x,y)=⟨cosy,x2siny⟩ and C the rectangle with vertices (0,0),(5,0),(5,2), and (0,2). Compute ∫CF⋅dr (b) F(x,y,z)=⟨2ycosz,exsinz,exy⟩ and S is the hemisphere x2+y2+z2=9,z≥0 oriented upwards. Compute ∬SCurl(F)⋅dS.
answers are (a) If F(x, y) = ⟨cos(y), x²sin(y)⟩ and C be the rectangle with vertices (0, 0), (5, 0), (5, 2), and (0, 2) ∫ₓ F ⋅ dr = 60. (b) the curl function is
curl(F) = 2 - 2eˣy + eˣsin(z)
To compute this integral, we can use the Green's Theorem, which states that for a vector field F = ⟨P, Q⟩ and a simple closed curve C with counterclockwise orientation, the line integral ∫ₓ F ⋅ dr is equal to the double integral ∬ᵦ curl(F) ⋅ dA, where dA is the differential area element and ᵦ represents the region bounded by C.
First, let's calculate the curl of F:
curl(F) = (∂Q/∂x - ∂P/∂y) = (∂/∂x(x²sin(y)) - ∂/∂y(cos(y)))
= (2xsin(y) - (-sin(y)))
= (2xsin(y) + sin(y))
= sin(y)(2x + 1).
Now, let's calculate the double integral over the region ᵦ bounded by the rectangle C:
∬ᵦ curl(F) ⋅ dA = ∬ᵦ sin(y)(2x + 1) dA.
Since C is a rectangle, we can parameterize it as follows: x = u, y = v, where 0 ≤ u ≤ 5 and 0 ≤ v ≤ 2.
Then, the differential area element dA can be expressed as dA = du dv.
Substituting the parameterization and the differential area element into the double integral:
∬ᵦ curl(F) ⋅ dA = ∫₀² ∫₀⁵ sin(v)(2u + 1) du dv.
Now, we can evaluate the integral:
∫₀² ∫₀⁵ sin(v)(2u + 1) du dv = ∫₀² [(u² + u)sin(v)]₀⁵ dv
= ∫₀² (5² + 5)sin(v) dv
= 30 ∫₀² sin(v) dv
= 30 [-cos(v)]₀²
= 30 (1 - (-1))
= 60.
Therefore, ∫ₓ F ⋅ dr = 60.
To compute this integral, we can use the Stokes' Theorem, which relates the surface integral of the curl of a vector field over a surface S to the line integral of the vector field around the boundary curve ∂S of the surface.
First, let's calculate the curl of F:
curl(F) = ∇ × F
= ∂Fₓ/∂y - ∂Fᵧ/∂x + ∂/∂x(Fᵧ - F_z)
= (2 - eˣy) - (0 - 0) + (∂/∂x(eˣsin(z) - eˣy))
= 2 - eˣy + eˣsin(z) - eˣy
= 2 - 2eˣy + eˣsin(z)
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The complete question is:
(a) Let F(x, y) = ⟨cos(y), x²sin(y)⟩ and C be the rectangle with vertices (0, 0), (5, 0), (5, 2), and (0, 2). Compute ∫ₓ F ⋅ dr.
(b) Let F(x, y, z) = ⟨2ycos(z), eˣsin(z), eˣy⟩ and S be the hemisphere x² + y² + z² = 9, z ≥ 0, oriented upwards. Compute ∬ₛ curl(F) ⋅ dS.
Find the difference between points M(6, 16) and Z(-1, 14) to the nearest tenth.
The distance between points M(6, 16) and Z(-1, 14) is approximately 7.1 units.
We can use the distance formula to find the distance between two points in a coordinate plane. The distance formula is:
d = √((x2 - x1)² + (y2 - y1)²)
where (x1, y1) and (x2, y2) are the coordinates of the two points. Substituting the coordinates of M(6, 16) and Z(-1, 14), we get:
d = √((-1 - 6)² + (14 - 16)²) = √(49 + 4) = √53 ≈ 7.1
Therefore, the distance between points M(6, 16) and Z(-1, 14) is approximately 7.1 units.
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write an equation in point-slope form given the following :
m= -1/3 , passes through (4, -2)
remember to remove double signs
Answer:
y+2=-1/3(x-4)
Step-by-step explanation:
Plug in the numbers:
y-___=___(x-___)
Annie has 4 1/2 feet of rope what is the greatest number of 3/4 foot pieces that annie can cut from the rope
Answer:
6
Step-by-step explanation:
4 1/2 divided by 3/4 is 6. so 6 pieces
The greatest number of 3/4 foot pieces that Annie can cut from the rope
is 6.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, Annie has 4 1/2 feet of rope.
Therefore, The greatest number of 3/4 foot pieces Annie can cut can be obtained by dividing the length of the total rope by the length of each piece which is,
= (4 1/2)/(3/4).
= (9/2)×(4/3).
= 36/6.
= 6.
So, 6 pieces are possible.
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Find the area of the above parallelogram
Answer:
30 units²
Step-by-step explanation:
The area (A) of a parallelogram is calculated as
A = bh ( b is the base and h the perpendicular height )
Here
b is the horizontal measure between 2 red points, that is 6
h is the vertical measure from the lower left point to the other horizontal line, that is 5, then
A = 6 × 5 = 30 units²
Select the correct answer
Consider functions fand g.
F(x) = 1/4 x^3 + 2x - 1
g(x) = 5(x-1) – 3
Using a table of values, what is an approximate solution to the equation f(x) = g(x) to the nearest quarter of a unit?
Α. 2.50
B. 1.50
C. 2.25
D. 1.75
An approximate solution to the equation f(x) = g(x) to the nearest quarter of a unit is; A: 2.5
How to solve simultaneous equations?
We are given;
f(x) = ¹/₄x³ + 2x - 1
g(x) = [5^(x - 1)] - 3
Thus;
f(x) = g(x) gives;
¹/₄x³ + 2x - 1 = [5^(x - 1)] - 3
At x = 2, we have;
LHS = 5
RHS = 2
At x = 2.5, we have;
LHS = 7.90625
RHS = 8.180
The answer to the two sides are close and so we can adopt that.
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what are the x-intercepts of the parabola? y=-3(x+5)(x-9)
Answer:
-5 and 9
Step-by-step explanation:
Graph the equation on a graph.
You can also simplify the equation into y=mx+b form and then graph:
y=-3(x+5)(x-9)
y=(-3x-15)(x-9)
y=-3x^2+27x-15x+135
y=-3x^2+12x+135