I need these answers, does anyone know how to do it? this assignment is 20 points!
Answer:
1. 3
2. -2
3. (1, 2)
Step-by-step explanation:
y axis is the numbered line that looks like the |
x axis is _
so the y int is 3 because A intercepts the y axis at 3
the y int for B is -2 because it intercepts the y axis at -2
the intersection of both lines is (1, 2) because you look and the point is at 1 for x and 2 for y
Answer:
y-intercept of line a: y=3
y-intercept of line b: y=-2
intersection: (1, 2)
Step-by-step explanation:
So the y-intercept of each line is where each line touches the y-axis.
The y-axis is the vertical line down the middle of the graph.
For line a, it touches the y-axis at 3, so we say the y-intercept is y=3.
For line b, it is the same thing, except it touched the y-axis at -2, so we say y=-2.
The intersection is the point at which both lines cross. In this graph, they cross the point (1, 2). Let me know if you need help figuring out how to do that.
Hope this helps!
Do the side lengths 4 5 and 10 form a triangle?
Yes, they do form a triangle. This is because the sum of any two side lengths must be greater than the third side length for a triangle to be formed. In this case, 4 + 5 is greater than 10.
Yes, these three side lengths do form a triangle. This is because a triangle is a three-sided shape with three straight sides, and for a triangle to be formed, the sum of any two side lengths must be greater than the third side length. In this case, the sum of 4 and 5 is greater than 10, thus fulfilling the criteria needed to form a triangle. Furthermore, the triangle formed by these side lengths is a scalene triangle, which is a triangle with three unequal sides. This is because 4, 5 and 10 are all unequal lengths, therefore the triangle formed is scalene. Additionally, the triangle formed will also be acute, as all three angles must be less than 90 degrees for a triangle to be classified as acute. Thus, the triangle formed by the side lengths 4, 5 and 10 is an acute scalene triangle.
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(2.2-4) An insurance company sells an automobile policy with a deductible of one unit. Let X be the amount of the loss having pmf 10.9, I=0, 19 r = 1,2,3,4,5,6. (1) where c is a constant. Determine c and the expected value of the amount the insurance company must pay.
Therefore, the expected value of the amount the insurance company must pay is approximately 2.8748 units.
To determine the constant c and the expected value of the amount the insurance company must pay, we need to use the properties of a probability mass function (pmf) and expected value.
The pmf given is:
P(X = r) = c * 0.9^(r-1), for r = 1, 2, 3, 4, 5, 6
To find the constant c, we can use the fact that the sum of the probabilities for all possible values must equal 1:
∑ P(X = r) = 1
Substituting the pmf into the equation:
c * ∑ 0.9^(r-1) = 1
We can evaluate the sum:
∑ 0.9^(r-1) = 0.9^0 + 0.9^1 + 0.9^2 + 0.9^3 + 0.9^4 + 0.9^5
Using the formula for the sum of a geometric series, we find:
∑ 0.9^(r-1) = (1 - 0.9^6) / (1 - 0.9)
∑ 0.9^(r-1) = (1 - 0.59049) / 0.1
∑ 0.9^(r-1) = 0.40951 / 0.1
∑ 0.9^(r-1) = 4.0951
Now, we can solve for c:
c * 4.0951 = 1
c ≈ 0.2443
Therefore, the constant c is approximately 0.2443.
To find the expected value of the amount the insurance company must pay, we can use the formula for expected value:
E(X) = ∑ (r * P(X = r))
Substituting the pmf and the calculated value of c:
E(X) = ∑ (r * 0.2443 * 0.9^(r-1)), for r = 1, 2, 3, 4, 5, 6
E(X) = (1 * 0.2443 * 0.9^0) + (2 * 0.2443 * 0.9^1) + (3 * 0.2443 * 0.9^2) + (4 * 0.2443 * 0.9^3) + (5 * 0.2443 * 0.9^4) + (6 * 0.2443 * 0.9^5)
E(X) ≈ 0.2443 + 0.4398 + 0.5905 + 0.5905 + 0.5314 + 0.4783
E(X) ≈ 2.8748
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Perimeter
plsss help
Step-by-step explanation:
l= 3x+2cm
b=4cm
Perimeter of the rectangle= 68cm
Now, according to the formula, the perimeter of a rectangle= 2(l+b)
Therefore,
2(l+b)=68
2{(3x+2)+(4)}=68
2{3x+2+4}=68
2{3x+6}=68
6x+12=68
6x=68-12
6x=56
x=56/6
x≈9.33
In order to cross-check this answer, we compute in the values so therefore,
3x+2=3(9.33)+2=27.99+2=29.99≈30
Now, substituting this value in the formula we get,
2(30+4)= 68
The reason for cross-checking was to re-assure because of the decimal value of 9.33, that is why I approximated the expression to 30 in order to get the exact value of 68. otherwise using the decimal value of 9.33 computes an answer of 67.98 which off by a difference of 0.2.
PLS HELP! What is the area of the trapezoid?
Answer:
900
Step-by-step explanation:
First, we set up our equation: To find the area of a trapaziod, the equation is Base 1+ Base 2 times Height
So, the equation would be: A=26+46x19
A=72x19
72 times 19= 900
Hope this helps and have a nice day!
Suppose you flip a fair coin 10 times and count the number of heads, which you then record (this is the "outcome"). You then perform this "experiment" 100 times. Simulate this set of experiments in Python, and create a histogram showing the number of times you achieved a given outcome. b) Do this again, but this time an experiment has 1,000flips, and you repeat the experiment 10,000 times. (c) Using Python, calculate the mean (μ), variance (σ 2
), and standard error on the mean (σ/μ) for the two sample distributions done on the previous part. Then calculate what these three quantities "should" be based on the formulae for the binomal distribution.
Here is a possible implementation for flipping a fair coin 10 times and recording the number of heads, repeating the experiment 100 times.
outcomes = []
for i in range(100):
num_heads = 0
for j in range(10):
if randint(0, 1) == 0:
num_heads += 1
Plt.show()b) Here is a possible implementation for flipping a fair coin 1,000 times and repeating the experiment 10,000
for i in range(10000).
num_heads = 0
for j in range(1000):
if randint(0, 1) == 0:
num_heads += 1
return n * p
def binom_var(n, p):
return n * p * (1 - p)
def binom_sem(n, p):
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help math pklz hekllo
Answer:
ইহেবে জেজে জেহব ইঞ্জিন জেবি জেজেবেজে jeiehbbr রুরুরব এভে
Convert 150 cm to inch
Answer:59.0551
Step-by-step explanation:
Please help :) thank you
The value of angle is 1/2 * mGDE=90° and 1/2 * mEFG=90°.
We are given that;
The quadrilateral DEFG
Now,
Since the sum of the arcs EG and GD is equal to the measure of arc ED, we can write:
arc ED = arc EG + arc GD
mEFG + mGDE = 1/2 * arc EG + 1/2 * arc GD
mEFG + mGDE = 1/2 * (arc EG + arc GD)
mEFG + mGDE = 1/2 * arc ED
Since we know that mEFG + mGDE = 180°, we can substitute this into the equation above:
180° = 1/2 * arc ED
arc ED = 360°
So,
1/2 * mGDE = 1/2 * arc GD = (360° - arc ED)/2 = (360° - 180°)/2 = 90°
1/2 * mEFG = 1/2 * arc EG = (360° - arc ED)/2 = (360° - 180°)/2 = 90°
Therefore, by the quadrilaterals answer will be 1/2 * mGDE=90° and 1/2 * mEFG=90°.
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Paula bought a ski jacket on sale for $4 less than half its original price. She paid $86 for the jacket. What was the original price? The original price was $
Answer:
$180
Step-by-step explanation:
step one 86+4 =90
step two 90×2=180
What is sextillion divided by nonmillion times 10,000 minus 200 million plus 5000.
The answer to this arithmetic expression is approximately 9.9998 x 10¹⁸
Define the term expression?A combination of numbers, variables, and operators that represents a quantity or mathematical relationship is called an expression.
First, divide sextillion (10²¹) by nonmillion (10⁶) to get 10¹⁵.
Next, multiply 10¹⁵ by 10,000 to get 10¹⁹.
Subtract 200 million (2 x 10⁸) from 10¹⁹ to get 9.9998 x 10¹⁸.
Finally, add 5,000 to get the result of approximately 9.9998 x 10¹⁸ + 5,000 = 9.9998 x 10¹⁸ + 0.0005 x 10¹⁸ = 9.9998 x 10¹⁸.
Therefore, the answer to this arithmetic expression is approximately 9.9998 x 10¹⁸
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Solve for x. Enter the solutions from least to greatest.(x+1) 2 −36=0
Answer:
x = 17
Step-by-step explanation:
(17+1) 2 - 36 = 0
If you don't think this is right, you may clarify it by plugging it in and multiplying :) thank you for your time <3
Answer:
x=17
Step-by-step explanation:
No links please !!! :D
Answer:
The answer should be B. 86.7
PLS HELP ILL GIVE BRAINLY
Do the graphs below represent a function? Explain.
Answer:
no
Step-by-step explanation:
i just know
Can some one please help
Simplify 4(11-6)+2
Answer: 22
Step-by-step explanation:
11 - 6 = 5
4 x 5 = 20
20 + 2 = 22
' pls can i have brainliest? i need it for my goal'
Answer:
22
Step-by-step explanation:
Solve whats in the paranthesis: (11-6) = 5
New problem: 4(5) + 2
Then multiply: 20+2
Finally add both numbers together: 22
graph -5x+2y=-10 HELP!!!!
Answer:
A
Step-by-step explanation:
We can write the equation of the line in slope intercept form to make it easier to find the correct graph.
-5x+2y = -10
2y = 5x - 10
y = 5/2x - 5
The correct graph is A because the y-intercept is (0,-5) and we can go 5 units up and 2 units to the right.
The italian mathematician fibonacci is known for introducing what mathematical concept?
Mikey is reading a 739-page book. Today he started reading on page 95; he had started reading last week. If he reads for x hours at 18 pages per hour, which equation represents how long it will take him to finish the book?
Answer:
= 35 hrs and 33 minutes
= 1 day and 11 hours and 33 minutes
Step-by-step explanation:
739 - 95 = 640
640 / 18 = x
x = 35.555555555 (you get what i mean)
35 hours and 33 minutes
Hope this helps
plzz mark brainlest
Help me you guys I will apprecaite
You are interested in doing a content analysis on the characteristics people seek in a partner by examining the personals section of three newspapers. your unit of analysis is:_______.
To do content analysis on the characteristics people seek in a partner by examining the personals section of three newspapers the unit of analysis will be objective of the section.
Given that we are interested in doing content analysis on the characteristis people seek in a partner by examining the personals section of three newspaper.
Content analysis is basically a research tool used to determine the presence of certain words, themes,or concepts within some given qualitative data. Using content analysis, a researchers can quantify and analye the presence meanings and relationships of such certain words, themes and concepts.
When we are required to do content analysis by examining the personals section of three newspapers, its units can be objective of section. Some part is related to matrimonials, some are for rent,etc.and some are for commercial advertisements.
Hence the unit of analysis is objective of the section.
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There are 90 people at a party.
Half of the people at the party are women.
The number of women at the party is 3 times the number of men at the party.
The rest of the people at the party are children.
the number of children at the party: the number of men at the party":
Work out the value of n.
You must show how you get your answer.
The number of children and men at the party will be 30 and 15, respectively.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
There are 90 people at the party. Half of the people at the party are women. The number of women at the party is 3 times the number of men at the party. The rest of the people at the party are children.
Let the number of children be 'x', the number of men be 'y', and the number of women be 'z'. Then we have
z = 90 / 2
z = 45
Then the other equation is given as,
z = 3y
45 = 3y
y = 15
Then the number of children is calculated as,
x + y + z = 90
x + 15 + 45 = 90
x = 30
The number of children and men at the party will be 30 and 15, respectively.
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Need helppppppp asapppppppp
Answer:
Round (n-value): 0. 1. 2. 3. 4.
# of Teams (aₙ): 1024, 512, 256, 128, 64
Step-by-step explanation:
aₙ = a₁ · r ⁿ⁻¹
Someone please correct me if I'm wrong. I learned this very recently.
4) TRY THIS! When you fold a rectangular piece of paper in half,
the fold creates two new rectangles. If you fold the folded piece
of paper again, the folds will create 4 rectangles. Every time you
fold the paper the number of rectangles will double. How many
rectangles will there be if you folded the piece of paper 10
times?
Help m en please right now
Answer:
yes me too
Step-by-step explanation:
The number of newly reported crime cases in a county in New York State is
shown in the accompanying table, where x represents the number of years
since 1998, and y represents number of new cases. Write the linear regression
equation that represents this set of data, rounding all coefficients to the
nearest hundredth. Using this equation, find the projected number of new
cases for 2008, rounded to the nearest whole number.
Years since 1998 (x) | New Cases (y)
0
703
1
675
2
706
3
643
4
660
605
LO
5
The linear regression equation is y ≈ -2.02x + 670.38, and the projected number of new cases for 2008 is approximately 650.
To find the linear regression equation that represents the given set of data, we can use the least squares method to determine the best-fit line. The equation will have the form y = mx + b, where m is the slope and b is the y-intercept.
First, let's calculate the mean values of x and y:
mean(x) = (0 + 1 + 2 + 3 + 4 + 5) / 6 = 15 / 6 ≈ 2.5
mean(y) = (703 + 675 + 706 + 643 + 660 + 605) / 6 = 3992 / 6 ≈ 665.33
Next, we'll calculate the values needed to determine the slope:
Σ(x - mean(x)) = (0 - 2.5) + (1 - 2.5) + (2 - 2.5) + (3 - 2.5) + (4 - 2.5) + (5 - 2.5) = 0 - 1 - 0.5 + 0.5 + 1 + 2 = 2.5
Σ(y - mean(y)) = (703 - 665.33) + (675 - 665.33) + (706 - 665.33) + (643 - 665.33) + (660 - 665.33) + (605 - 665.33) ≈ -35.33
Σ(x - \(mean(x))^2 = (0 - 2.5)^2 + (1 - 2.5)^2 + (2 - 2.5)^2 + (3 - 2.5)^2 + (4 - 2.5)^2 + (5 - 2.5)^2\)= 6.25 + 2.25 + 0.25 + 0.25 + 2.25 + 6.25 = 17.5
Now, we can calculate the slope:
m = Σ[(x - mean(x)) * (y - mean(y))] / Σ[(x - \(mean(x))^2\)] ≈ (-35.33) / 17.5 ≈ -2.02
Next, we can determine the y-intercept:
b = mean(y) - m * mean(x) ≈ 665.33 - (-2.02) * 2.5 ≈ 665.33 + 5.05 ≈ 670.38
Therefore, the linear regression equation for the given data is y ≈ -2.02x + 670.38.
To find the projected number of new cases for 2008 (10 years since 1998), we substitute x = 10 into the equation:
y ≈ -2.02(10) + 670.38 ≈ -20.2 + 670.38 ≈ 650.18
Rounding to the nearest whole number, the projected number of new cases for 2008 is approximately 650.
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Answer:
Step-by-step explanation:
Describe how the graph of f ( x ) = 1 x + 5 will differ from the graph of g (x) = 1/x
Answer:
parent function is the simplest form of the type of function given.
The transformation from the first equation to the second one can be found by finding , , and for each equation.
Find , , and for .
Find , , and for .
The horizontal shift depends on the value of . The horizontal shift is described as:
- The graph is shifted to the left units.
- The graph is shifted to the right units.
Horizontal Shift: None
The vertical shift depends on the value of . The vertical shift is described as:
- The graph is shifted up units.
- The graph is shifted down units.
Vertical Shift: None
The sign of describes the reflection across the x-
pls
help, lost here.
Given numbers \( =(63,80,41,64,38,29) \), pivot \( =64 \) What is the low partition after the partitioning algorithm is completed? (comma between values) What is the high partition after the partition
The low partition after the partitioning algorithm is completed is `(63,41,38,29)` and the high partition after the partition is `(80)`.
Given numbers \(=(63,80,41,64,38,29)\),
pivot \(=64\)
The low partition after the partitioning algorithm is completed is `(63,41,38,29)` and the high partition after the partition is `(80)`.
Explanation:
The given numbers are:
\(=(63,80,41,64,38,29)\)
Pivot = 64
The steps to partition the above numbers are:
Choose the last element of the given array as the pivot element. In this case, pivot=64.
Partition the given array into two groups: a low group and a high group. The low group will contain all elements strictly less than the pivot element.
The high group will contain all elements greater than or equal to the pivot element.
Now partition the array around the pivot value (64). The result of the partitioning is that all the elements less than the pivot value (64) are moved to the left of it, and all the elements greater than the pivot value (64) are moved to the right of it. After partitioning, the array will look like this: `(63,41,38,29,64,80)`.
So, the low partition after the partitioning algorithm is completed is `(63,41,38,29)` and the high partition after the partition is `(80)`.
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Jon and Keith save money at the end of each month and begin saving money at the same time . Jon's savings after m months are modeled with the formula f(m) = 40m + 20 Keith's savings after m months are modeled with the formula g(m) = 35m + 45 At the end of how many months will they have saved the same amount of money ?
Answer:
g5654
Step-by-step explanation:
use the limit definition to find the slope of the tangent line to the graph of f at the given point. f(x) = 14 − x2, (3, 5)
Use the limit definition to find the slope of the tangent line to the graph of f at the given point. f(x) = 14 − x2, (3, 5)
The slope of the tangent line to the graph of f at (3, 5) is -6.
The slope of the tangent line to the graph of f at (3, 5) can be found using the limit definition of the slope. The slope of the tangent line can be calculated as the limit of the average rate of change of the function f(x) between two points as the distance between the points approaches zero. The formula is given by: lim _(h → 0) [f(x + h) - f(x)] / h
where h is the change in x, which is the difference between the x-value of the point in question and the x-value of another point on the tangent line. The given function is f(x) = 14 - x². To find the slope of the tangent line at x = 3, we need to calculate the limit of the average rate of change of f(x) as x approaches 3.
Using the formula,
lim_(h → 0) [f(x + h) - f(x)] / h
= lim_(h → 0) [(14 - (x + h)²) - (14 - x²)] / h
= lim_(h → 0) [14 - x² - 2xh - h² - 14 + x²] / h
= lim_(h → 0) [-2xh - h²] / h
= lim_(h → 0) [-h(2x + h)] / h
= lim_(h → 0) [-2x - h] = -2x
When x = 3, the slope of the tangent line is -2(3) = -6.
Therefore, the slope of the tangent line to the graph of f at (3, 5) is -6.
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Calebs puppy weighs 2250 grams. If the puppy weighed 600 grams at his last visit to the vet, what is the percent increase in the puppies weight
Answer:
275%
Step-by-step explanation:
Given that,
Initial weight of the puppy = 600 grams
Final weight of the puppy = 2250 gram
We need to find the percent increase in the puppy's weight.
Increase in weight = 2250 gram - 600 grams
= 1650 grams
The percentage of increase in weight,
\(\%=\dfrac{1650}{600}\times 100\\\\=275\%\)
So, the required increase in puppy's weight is equal to 275%.
An online news report claims that 50% of online news readers work in the business industry. to test this claim, a researcher takes an srs of 25 online news readers. nine of them work in the business industry. a simulation of 65 trials was conducted under the assumption that 50% of online news readers really do work in the business industry. a dotplot titled online readers and the business industry has number of readers from the food industry on the x-axis, and frequency on the y-axis. 8, 1; 9, 2; 10, 6; 11, 9; 12, 13; 13, 15; 14, 9; 15, 6; 16, 2; 17, 0; 18, 1; 19, 1. based on this dotplot and the sample of 25 online news readers, which conclusion can be drawn? since 0.36 of the sample works in the business industry, 0.36 is the true probability that an online news reader works in the business industry. it is most likely that, out of 25 online readers, between 12 and 13 work in the business industry. because there appear to be outliers present that are greater than 16, we can conclude that more than 50% of online readers work in the business industry. there is about a 0.046 chance that 9 or fewer online readers work in the business industry. this is unusual and is convincing evidence that less than 50% of online readers work in the business industry.
The dot plot backs up the null hypothesis that 50% of online news readers work in business.
According to the dot plot and the sample of 25 online news readers, between 12 and 13 online readers work in the business industry. This conclusion can be drawn based on the dot plot's highest frequency, which is between 12 and 13.
However, concluding that 0.36 is the true probability of an online news reader working in the business industry is incorrect. Because the sample of 25 online news readers is not representative of the entire population of online news readers, using the sample proportion as the true probability is inappropriate.
Furthermore, the dotplot does not provide sufficient evidence to conclude that more than half of online readers work in the business industry. The null hypothesis is that 50% of online news readers work in the business industry, and the simulation of 65 trials under this assumption suggests that 9 or fewer online news readers working in the business industry is not uncommon.
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