Answer:
A
Step-by-step explanation:
(m / 3) = (12 / 3) = 4
1/2 x 4 = 2
2 + n = 2 + 3/5 = 2 and 3/5 = 13/5
Answer:
13/5
Step-by-step explanation:
Find the length. Round your answer to the nearest tenth
A. 82.5 km
B. 618.5 km
C. 83. 4 km
D. 66.0 km
find f(g(1)) if f(x)=4x and g(x)=2x+5
Evaluating the composition of functions in x = 1 gives:
f(g(1)) = 28
How to find the composition of functions?Here we have the two functions:
f(x) = 4x
g(x) = 2x + 5
And we want to find to find the composition f(g(x)), we will get:
f(g(x)) = 4*g(x)
Replacing g(x) there we will get:
f(g(x)) = 4*(2x + 5)
= 8x + 20
Now we can evaluate that in x = 1, then we will get:
f(g(1)) = 8*1 + 20 = 28
That is what we wanted to find.
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A rectangular prism with a square base has a height of 17.2cm and a volume of 24.768cm². What is the length of its base?
Andrei wants to fill a glass tank with marbles, and then fill the remaining space with water.
W represents the volume of water Andrei uses (in liters) if he uses n marbles.
W=32-0.05n
What is the volume of each marble?
According to the linear equation given, it is found that the volume of each marble is of 0.05 liters.
A linear equation is modeled by:
\(y = mx + b\)
In which:
m is the slope, which is the rate of change.b is the y-intercept, which is the value of x when y = 0.In this problem, the volume of water on a tank of 32 liters when n marbles are used is:
\(W = 32 - 0.05n\)
The slope is of \(m = 0.05\), which means that for each marble, there is 0.05 liters less available for water, meaning that the volume of each marble is of 0.05 liters.
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The workers' union at a particular university is quite strong. About 96 of all workers employed by the university belong to the workers' union. Recently, the workers went on strike, and now a local TV station plans to interview 4 workers (chosen at random) at the university to get their opinions on the strike. What is the probability that exactly 2 of the workers interviewed are union members?
The probability that exactly 2 of the workers interviewed are union members is approximately 0.044.
To solve this problem, we can use the binomial probability formula, which is:
\(P(X = k) = (n choose k) * p^k * (1 - p)^(n - k)\)
where:
n is the sample size (number of workers being interviewed)
k is the number of successes we are interested in (in this case, 2 of the workers being union members)
p is the probability of success (in this case, the probability that a worker is a union member)
(n choose k) is the binomial coefficient, which represents the number of ways to choose k items from a set of n items (this can be calculated using the formula n! / (k! * (n - k)!))
Plugging in the values, we get:
\(P(X = 2) = (4 choose 2) * (0.96)^2 * (1 - 0.96)^(4 - 2)\)
\(= (6) * (0.96)^2 * (0.04)^2\)
= 0.04403136
Therefore, the probability that exactly 2 of the workers interviewed are union members is approximately 0.044.
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3. The fuel economy of a car, measured in miles per gallon, is modeled by the function f(s) = -0.009s² +0.699s +12 where s represents the speed of the car, measured in miles per hour. What's the fuel economy of the car when it
travels at an average of 20 miles an hour?
O A. 20 miles per gallon
O B. 26.63 miles per gallon
4
O C.-10.02 miles per gallon"
O D. 22.38 miles per gallon
O Mark for review (Will be highlighted on the review page)
Answer:
The Answer Will Be D
Step-by-step explanation:
The fuel economy of a car is modeled by the function f(s) = -0.009s² +0.699s +12 where s represents the speed of the car, measured in miles per hour.We need to find the fuel economy of the car when it travels at an average of 20 miles an hour.f(20) = -0.009(20)² +0.699(20) +12f(20) = -0.009(400) +13.98f(20) = 9.6The fuel economy of the car when it travels at an average of 20 miles an hour is 9.6 miles per gallon.Therefore, the answer is option D. 22.38 miles per gallon.
Find the value of k so that (x + 3) is a factor of H(x) = 3x^3 – 2x^2 + kx – 3.
A. 34
B. 20
C. -20
D. -34
E. 32
Mathematics
10³x10³x10²
Answer:
100,000,000/10^8
Step-by-step explanation:
10^3 = 1000
10^3 = 1000
10^2 = 100
Therefore,
= (1000) x (1000) x (100)
= (100,000) x (100)
= 100,000,000
or
= 10^8
PLEASE HELP ME
Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
Match the expressions with their simplified forms.
(a) √2 · √8. The simplified surd expression is 4.
(b) √80. The simplified surd expression is 4√5.
(c) √5/√20. The simplified surd expression is 1/2.
(d) √20. The simplified surd expression is 2√5.
What is the simplification of the surd expression?The given surd expression is simplified as follows;
(a) √2 · √8
we can simplify it as;
√2 · √8 = √(2 x 8) = √16 = 4
(b) √80
we can simplify it as;
√80 = √ (16 x 5) = √16 x √5 = 4√5
(c) √5/√20
we can simplify it as;
√5/√20 x √20 / √20
= (√5 x √20 ) /(20)
= √100 / 20
= 10/20
= 1/2
(d) √20
we can simplify it as;
√20 = √4 x √5 = 2√5
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A book is bought for 350 and sold for R490. Calculate the percentage profit.
well, the profit is clearly just 490 - 350 = 140.
Now, if we take 350(origin amount) to be the 100%, what is 140 off of it in percentage?
\(\begin{array}{ccll} Amount&\%\\ \cline{1-2} 350 & 100\\ 140& x \end{array} \implies \cfrac{350}{140}~~=~~\cfrac{100}{x} \\\\\\ \cfrac{5}{2} ~~=~~ \cfrac{100}{x}\implies 5x=200\implies x=\cfrac{200}{5}\implies x=40\)
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This figure shows the dimensions of a right triangular prism. What is the volume of the right triangular prism in cubic meters?
60m
30m
15m
50m
Answer: 60m
Step-by-step explanation: V= b x h x l
2319471, how is this number read?
Step-by-step explanation:
#G
enjoy. my son haha. lol
Please HELP 20 POINTS 10. A rectangular page is to contain 30 square inches of print. The margins at the top and bottom of the page are to be 2 inches wide. The margins on each side are to be 1 inch wide. Find the dimensions of the page such that the least amount of paper is used.
1.) (√30)inches by (√30)inches
2.) (√30+4)inches by (√30+2)inches
3.) 6 inches by 6 inches
4.) (2√15)inches by (√15)inches
5.) (2√15+4)inches by (√15+2)inches
The dimensions of the rectangular page such that the least amount of paper is used are;
2.) (√30 + 4) inches by (√30 + 2) inches
What is a rectangle?A rectangle is a quadrilateral in which the four interior angles are right angles.
The area of the print contained in the page = 30 square inches
Length of the margin at the top of the page = 2 inches wide
Length of the margin at the bottom of the page = 2 inches
Length of the margin on each side = 1 inch
The dimensions of the rectangular page are therefore;
Length of the rectangle = The side length of the square + 2 × The margin at the top
Width of the rectangle = Side length of the square + 2 × The margin on the side
Area of a square, A = s²
Where;
s = The side length of the square
Therefore;
Side length of a square of area, A, is √(A)
The side length of area 30 square inches is thehttps://brainly.com/question/24158647refore;
s = √(30)
The dimensions of the rectangular page are therefore;
Length of page, L = (√(30)) + 2 × 2 = (√(30)) + 4Width of the page, W = (√(30)) + 2 × 1 = (√(30)) + 2Learn more about rectangles here:
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Factor 6y^2(y^2+6y+9) completely.
\(6y^2(y^2+6y+9)\\\\=6y^2(y^2+2\cdot 3 \cdot y + 3^2)\\\\=6y^2(y+3)^2\\\\=6y^2(y+3)(y+3)\)
Please help!
Find the area of all the different flower types
As a result, the roses and zinnias collectively occupy about 67.95% of the entire yard.
what is area ?The area represents the size of a two-dimensional surface or territory in mathematics. It is measured in square measures, such as square inches (in2), square feet (ft2), or square metres (m2), and it refers to the volume of a closed figure. Depending on how the figure is shaped, a different method is required to calculate the area. For instance, you can calculate the area of a rectangle by multiplying its length by breadth, and you can calculate the area of a circle by multiplying (pi) by the square of its radius.
given
a. The formula for calculating the area of a rectangle must be used to determine the area of each variety of flower:
Area is equal to length times breadth.
Roses: The dimensions are 20 feet long and 16 feet wide.
Size: 20 feet by 16 feet
≈ 320 square feet
As a result, each flower type's size is as follows:
Roses: 320 square feet
Zinnia: 528 square feet
Qualcomms: 0 square feet
A square foot of petunias. The total area of the roses and zinnias must be added, divided by the total area of the garden, and multiplied by 100 to obtain the proportion of the entire garden that each takes up:
320 square feet of roses and 528 square feet of zinnias equal 848 square feet.
(Area of Roses Plus Area of Zinnias) / Total Area x 100% is the percentage of the entire garden.
Garden percentage equals (848 square feet / 1248 square feet) times 100%
67.95% of the garden's overall area
As a result, the roses and zinnias collectively occupy about 67.95% of the entire yard.
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The complete question is:-
a. Find the area of all the different flower types (Show ALL Work). Hint: You will have to subtract out the previous one to find the next one. For example, to find the Zinnias, you will have to find the area of it and then subtract out the area of the Roses.
b. What percent of the total garden does the Roses and Zinnias take up? Hint: Find the area of the total and then divide it with the area of the Roses and Zinnias.
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What is 178.80 as a fraction?
Answer: 178 4/5 or as an improper fraction 894/5
Hope this helps!
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Write an equation of the line passing through the point A(6,-1) that is perpendicular to the line y=-2x+8
Answer:
\(y+1=\frac{1}{2}(x-6)\)
Step-by-step explanation:
Perpendicular lines have slopes that are negative reciprocals, so the slope of the line to be found is 1/2.
Substituting into point-slope form, the equation is
\(y+1=\frac{1}{2}(x-6)\)
24 students in a class took an algebra test
If 18 students passed what percent passed
Answer: 75%
We know that 1/4 of 24 (25%) is 6, 6 fits into 18 three times and 25 times 3 is 75. So the answer is 75%
Help me out please???
Answer:
62°
Step-by-step explanation:
___________________________________________________________
Answer:
A
Step-by-step explanation:
I think it is A because if you do the math when your double her time she has way more distance.
Which of these is the correct ratio of strawberries to blueberries for the fruit salad?
A. 8 strawberries: 30 blueberries
B. 8 strawberries: 8 blueberries
C. 4 strawberries: 30 blueberries
D. 32 strawberries: 30 blueberries
The ratio of the strawberries to the blueberries is 32 strawberries: 30 blueberries (option d).
What is the ratio?
Ratio expresses the relationship between two or more numbers. It shows the frequency of the number of times that one value is contained within other value(s). The sign that is used to represent ratio is :.
The ratio of strawberries to blueberries - total number of strawberries : total number of blueberries.
(8 x 4) : 30
32 : 30
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Answer: A. 8 strawberries: 30 blueberries
Step-by-step explanation:
Which of the following situations does NOT represent a linear function?
A. Jasmine's mother gives her an allowance of $20 each week.
B. Over the past few months, Cesar's cell phone bill has doubled from the previous month.
Blair is going to earn $7.00 per hour working at a concession stand at a football gamo.
D. The Landscaping company charges the Anderson's $15 for the first hour and $10 for each additional hour to mow the lawn.
C
Answer:
B. Over the past few months, Cesar's cell phone bill has doubled from the previous month.
Step-by-step explanation:
hii can someone help me with this question please
Move AC and BD so that their midpoints coincide. Then draw a polygon through A, B, C, and D to form quadrilateral ABCD. Measure and record the slope of each slide of quadrilateral ABCD
Answer:
look attachment below
Step-by-step explanation:
We find the midpoints of AC and BD and the corresponding coordinates for quadrilateral ABCD.
Midpoint of AC: ( (x₁ + x₃) / 2 , (y₁ + y₃) / 2 )
Midpoint of BD: ( (x₂ + x₄) / 2 , (y₂ + y₄) / 2 )
Then we can measure and record the slopes of each side.
Slope = (y₂ - y₁) / (x₂ - x₁)
Here,
To draw quadrilateral ABCD with the midpoints of AC and BD coinciding, we first need to find the midpoints of AC and BD.
The midpoint of a line segment is the average of the coordinates of its endpoints.
Given points A(x₁, y₁), B(x₂, y₂), C(x₃, y₃), and D(x₄, y₄), we can find the midpoints as follows:
Midpoint of AC: ( (x₁ + x₃) / 2 , (y₁ + y₃) / 2 )
Midpoint of BD: ( (x₂ + x₄) / 2 , (y₂ + y₄) / 2 )
Once we have the coordinates of the midpoints, we can connect them to form quadrilateral ABCD.
To measure the slope of each side of quadrilateral ABCD, we need to find the slope of each line segment formed by connecting points A, B, B, C, C, D, and D, A.
The slope of a line passing through two points (x₁, y₁) and (x₂, y₂) is given by:
Slope = (y₂ - y₁) / (x₂ - x₁)
Let's assume we find the midpoints of AC and BD and the corresponding coordinates for quadrilateral ABCD. Then we can measure and record the slopes of each side.
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I NEED HELP PLEASE, THANKS! :)
Answer:
7/2
Step-by-step explanation:
notice that if you substitute x by five you get 0/0 wich a non-defined form
The trick is to simplify by x-5
(x²-3x-10)/(2x-10)You get using the Euclidien division : x²-3x-10 = (x-5) (x-2)so : (x-2)(x-5)/2*(x-5) = (x-2)/2 substitute x by 5 to get 7/2 \(\lim_{x\to \5} \frac{x^{2} -3x-10}{2x-10}\) = 7/2Hey there! :)
Answer:
\(\lim_{x \to 5} = 7/2\)
Step-by-step explanation:
We are given the equation:
\(\frac{x^{2}-3x-10 }{2x-10}\)
Factor the numerator and denominator:
\(\frac{(x - 5)(x+2) }{2(x-5)}\)
'x - 5' is on both the numerator and denominator, so it gets cancelled out and becomes a "hole".
This means that at x = 5, there is a hole. There is a limit at x ⇒ 5. Find the hole by plugging 5 into the simplified equation:
\(\frac{((5)+2) }{2}\) = 7/2
Therefore:
\(\lim_{x \to 5} = 7/2\)
PLEASE HELP AND FAST!! BRAINLEST!! MULTIPLE CHOICE! Don't need the work just the correct answer, please
Answer:
d. slope: -3; y-intercept: -2
Step-by-step explanation:
The equation of the line is given to us in slope-intercept form. The slope-intercept form of a line is:
y = mx + b
where m is the slope and b is the y-intercept.
The equation given to us is:
y = -3x - 2
Since the equation is in slope-intercept form, we can see that -3 is the slope and -2 is the y-intercept.
Answer choice d is correct.
I hope you find my answer and explanation to be helpful. Happy studying.
Three friends were comparing how much money they each have saved. Sami has $41.79. Charlotte has $38.91. Celeste has $41.68. Which list shows the names in order from least amount saved to greatest?
Sami, Celeste, Charlotte
Charlotte, Celeste, Sami
Celeste, Sami, Charlotte
Charlotte, Sami, Celeste
Answer:
B
Step-by-step explanation:
i got it right
The second drop down menu on each question includes options: decimal place(s) or significant figure(s)
Answers:
A. 1 Decimal Place 92.2B. 4 Decimal Places 1.8164Step-by-step explanation:
I solved the problem.
I'm always happy to help :)Zoe placed colored blocks on a scale in science class. Each block weighed 0.8 ounces. The total weight of all the colored blocks was 12.8 ounces. How many blocks did Zoe place on the scale? Write and solve an equation to find the answer.
Answer:
16 blocks
Step-by-step explanation:
equation: 0.8x = 12.8
if each block is 0.8oz and the total weight is 12.8oz then divide 12.8 by 0.8 and get 16! in other words, 0.8oz goes into 12.8oz 16 times, meaning there are 16 blocks that each weigh 0.8oz
If c(x) = 2x^2 - 4x + 3 and d(x) = -x^3 + x + 1 find c(3a)
Answer:
c(3a) = 2(3a)^2 - 4(3a) + 3 = 18a^2 - 12a + 3.
Step-by-step explanation:
c(3a) = 18a^2 - 12a + 3
Note: this is the simplified form of the expression.
Please solve this
∫ (log(1 + x ^ 2))/((x + 1) ^ 2) dx
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
We have,
To solve the integral ∫ (log(1 + x²) / (x + 1)²) dx, we can use the method of substitution.
Let's substitute u = x + 1, which implies du = dx. Making this substitution, the integral becomes:
∫ (log(1 + (u-1)²) / u²) du.
Expanding the numerator, we have:
∫ (log(1 + u² - 2u + 1) / u²) du
= ∫ (log(u² - 2u + 2) / u²) du.
Now, let's split the logarithm using the properties of logarithms:
∫ (log(u² - 2u + 2) - log(u²)) / u² du
= ∫ (log(u² - 2u + 2) / u²) du - ∫ (log(u²) / u²) du.
We can simplify the second integral:
∫ (log(u²) / u²) du = ∫ (2 log(u) / u²) du.
Using the power rule for integration, we can integrate both terms:
∫ (log(u² - 2u + 2) / u²) du = log(u² - 2u + 2) / u - 2 ∫ (log(u) / u³) du.
Now, let's focus on the second integral:
∫ (log(u) / u³) du.
This integral does not have a simple closed-form solution in terms of elementary functions.
It can be expressed in terms of a special function called the logarithmic integral, denoted as Li(x).
Therefore,
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
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