Answers
Answer:
y=1/2x +4
rise over run 1/2
y intercept is 4
Related Questions
You flip a coin 100 times and record that 48 are heads and 52 are tails. What is the relative frequency or experimental probability of landing on heads?
whats the percentage
Answers
As a result, the experimental probability of landing on heads is 48%, probability which means that we should expect heads approximately 48 times out of 100 coin flips.
What is probability?Probability is a measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1, with 0 indicating an unlikely event and 1 indicating an unavoidable event. Because there are two equally likely outcomes, switching a fair coin and coin flips has a probability of 0.5 or 50%. (Either heads or tails). Probability theory, a branch of mathematics, is concerned with the investigation of random events rather than their properties. It is used in a variety of fields, including statistics, finance, science, and engineering.
The following formula can be used to calculate the relative frequency or experimental probability of landing on heads:
Number of Heads / Total Number of Flips = Experimental Probability of Heads
The number of heads in this case is 48, and the total number of flips is 100. Therefore,
Heads Experimental Probability = 48 / 100 = 0.48
We can multiply this by 100 to get a percentage:
Heads Experimental Probability = 0.48 * 100 = 48%
As a result, the experimental probability of landing on heads is 48%, which means that we should expect heads approximately 48 times out of 100 coin flips.
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Write a number in the blank that makes this number sentence true.
43 + 29 = ___ + 60
Answers
Answer:
12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
The population of a certain inner-city area is estimated to be declining according to the model P(t) = 201,000e^(-0.014*t), where t is the number of years from the presentWhat does this model predict the population will be in 14 years? Round to the nearest person
Answers
We have the population modeled by the exponential function:
\(P(t)=201000\cdot e^{-0.014t}\)Where t is the number of years from the present. In 14 years, we have t = 14:
\(undefined\)4) Ben and his friends are going to play putt-putt. At one location, they can pay $2.00
rentals plus $7.50 per game. At another location, it would cost $8.00 for rentals plus
$6.00 per game. How many games would they have to play in order for either location to
cost the same amount?
!I need the equation!
!and the x= answer!
Answers
Answer:
Either location costs the same when they play 4 games
Step-by-step explanation:
The total cost for playing putt-putt consists of fixed rentals and a variable amount per game.
On one location Ben and his friends can pay $2 rentals plus $7.50 per game.
If x is the number of games played, then the total cost at this location is:
C1(x) = 7.50x + 2
At another location, it would cost $8 for rentals plus $6 per game. The second function is:
C2(x) = 6x + 8
It's required to find the number of games x in order for either location to cost the same amount.
It can be done by equating both cost functions:
7.50x + 2= 6x + 8
Subtracting 2 and 6x:
7.50 - 6x = 8 -2
Operating:
1.5x = 6
Dividing by 1.5:
x = 6 / 1.5
x = 4 games
Either location costs the same when they play 4 games
Can you help me and give an explanation please
Answers
Answer:
whats the question
Step-by-step explanation:
On average, private sector IT projects underestimated budget and delivery time of systems by ______ percent. A) 30. B) 40. C) 50. D) 60. E) 70. C) 50.
Answers
The required answer is option C) 50 , On average, private sector IT projects underestimated budget and delivery time of systems by ___50___ percent.
What do you mean by percent?
This free percentage calculator computes a variety of percentage-based numbers, including the percentage difference between two provided values.
According to the given question,
We have given a statement in the form of blanks:
On average, private sector IT projects underestimated budget and delivery time of systems by ___50___ percent.
Therefore, On average, private sector IT projects underestimated budget and delivery time of systems by ___50___ percent.
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Evacuation and emergency procedures should be displayed in the classroom lab/office. * 4 points True False
Answers
Answer:
The answer is true. I hope this helps
Answer:
yes. If there will be Evacuation and emergency procedures then the students can learn about that and can use that when there is an emergency case.
Help please, ill give 5 stars, and brainly ofc (if correct)
Answers
Answer:
Step-by-step explanation:
part a = 1 x 4
part b = b
Answer:
y=2x+25
the graph is B.
Step-by-step explanation:
Analyze the graph of the function f(x) to complete the statement. On a coordinate plane, a curved line, labeled f of x, with a minimum value of (0, negative 3) and a maximum value of (negative 2.4, 17), crosses the x-axis at (negative 3, 0), (negative 1.1, 0), and (0.9, 0), and crosses the y-axis at (0, negative 3). f(x)<0 over and what other interval?
Answers
The interval where function f(x) is negative and greater than 0 is (-∞, -3) U (-1.1, 0)
We have,
The function f(x) crosses the x-axis at (-3, 0), (-1.1, 0), and (0.9, 0), it means that f(x) is negative for x values less than -3, between -1.1 and 0.9, and greater than 0.
Therefore, we can say that:
f(x) < 0 for x < -3 and -1.1 < x < 0.9
And,
The function f(x) has a minimum value of (0, -3) and a maximum value of (-2.4, 17).
This means that f(x) is positive for x values greater than -2.4. Therefore, we can say that:
f(x) > 0 for x > -2.4
Now,
Combining these inequalities, we can say that f(x) is negative over the intervals (-∞, -3) and (-1.1, 0.9), and positive over the interval (-2.4, ∞).
So,
The interval where f(x) is negative and greater than 0 is:
(-∞, -3) U (-1.1, 0)
Thus,
The interval where f(x) is negative and greater than 0 is (-∞, -3) U (-1.1, 0)
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What is the meaning of "\( \varphi (x,y)\) be \( y\wedge \phi (x)\) "?
![What is the meaning of "[tex] \varphi (x,y)[/tex] be [tex] y\wedge \phi (x)[/tex] "?](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/IEnaK9Mnw3ftGn7VoWymvKjzqCukNTp6.png)
Answers
The given passage provides a proof that the Separation Axioms follow from the Replacement Schema.
The proof involves introducing a set F and showing that {a: e X : O(x)} is equal to F (X) for every X. Therefore, the conclusion is that the Separation Axioms can be derived from the Replacement Schema.In the given passage, the author presents a proof that demonstrates a relationship between the Separation Axioms and the Replacement Schema.
The proof involves the introduction of a set F and establishes that the set {a: e X : O(x)} is equivalent to F (X) for any given set X. This implies that the conditions of the Separation Axioms can be satisfied by applying the Replacement Schema. Essentially, the author is showing that the Replacement Schema can be used to derive or prove the Separation Axioms. By providing this proof, the passage establishes a connection between these two concepts in set theory.
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Airlines must be careful about the total weight of baggage carried by a plane on a commercial flight. Passengers with items exceeding the maximum single-item weight (usually about 70 pounds) must pay a fee (usually about $50.00 per item). Airlines continually monitor the proportion of overweight items in order to evaluate the appropriateness of the overweight fees. English Air charges different amounts for overweight items on flights to the U.S. and Canada than it does on flights within Europe. Recently, a random sample of 256 items checked on English Air flights to the U.S. and Canada contained 37 overweight items, and an independent, random sample of 246 items checked on English Air flights within Europe contained 41 overweight items.
Based on these samples, can we conclude, at the 0.05 level of significance, that there is a difference between the proportion of all items on English Air flights to the U.S. and Canada which are overweight (p1) and the proportion of all items on English Air flights within Europe which are overweight (p2)?
Answers
Answer:
The p-value of the test is 0.4966 > 0.05, which means that we cannot conclude, at the 0.05 level of significance, that there is a difference.
Step-by-step explanation:
Before solving this question, we need to understand the central limit theorem and subtraction of normal variables.
Central Limit Theorem
The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \(\mu = p\) and standard deviation \(s = \sqrt{\frac{p(1-p)}{n}}\)
Subtraction between normal variables:
When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.
To US and Canada:
37 overweight out of 256. So
\(p_1 = \frac{37}{256} = 0.1445, s_1 = \sqrt{\frac{0.1445*0.8555}{256}} = 0.022\)
Europe:
41 overweight out of 246. So
\(p_2 = \frac{41}{246} = 0.1667, s_2 = \sqrt{\frac{0.1667*0.8333}{246}} = 0.0238\)
Test if there is a difference between the proportion of all items on English Air flights to the U.S. and Canada which are overweight (p1) and the proportion of all items on English Air flights within Europe which are overweight (p2):
At the null hypothesis, we test if there is no difference, that is, if the subtraction of the proportions is 0.
\(H_0: p_1 - p_2 = 0\)
At the alternate hypothesis, we test if there is difference, that is, if the subtraction of the null hypothesis is different of 0.
\(H_1: p_1 - p_2 \neq 0\)
The test statistic is:
\(z = \frac{X - \mu}{s}\)
In which X is the sample mean, \(\mu\) is the value tested at the null hypothesis and s is the standard error.
0 is tested at the null hypothesis:
This means that \(\mu = 0\)
From the two samples:
\(X = p_1 - p_2 = 0.1445 - 0.1667 = -0.0222\)
\(s = \sqrt{s_1^2+s_2^2} = \sqrt{0.022^2 + 0.0238^2} = 0.0324\)
Value of the test statistic:
\(z = \frac{X - \mu}{s}\)
\(z = \frac{-0.0222 - 0}{0.0324}\)
\(z = -0.68\)
P-value of the test:
The p-value of the test is the probability of the sample proportion differing from 0 by at least 0.0222, which is P(|z| > 0.68), which is 2 multiplied by the p-value of z = -0.68.
Looking at the z-table, z = -0.68 has a p-value of 0.2483
0.2483*2 = 0.4966
The p-value of the test is 0.4966 > 0.05, which means that we cannot conclude, at the 0.05 level of significance, that there is a difference.
PLEASE HELP
Two projectiles are shot vertically upward at the same instant.
Projectile A's height in feet, f(t), is represented in the table, where t is the seconds since the projectile was shot off
Projectile B's height at any time t is modeled by the function
h (t)=-16t^2 +96t
How do the times at which the projectiles begin their descents compare?
SEE PHOTO
Answers
Projectile B begins its descent 1 seconds before Projectile A does.
What is y-intercept?In Mathematics and Geometry, the y-intercept of any graph or table such as a quadratic equation or function, generally occurs at the point where the value of "x" is equal to zero (x = 0).
By critically observing the table shown in the image attached above, we can reasonably infer and logically deduce the following y-intercept of Projectile A:
y-intercept = (0, 44).
Maximum height = (4, 300).
When t = 0, the y-intercept of Projectile B can be calculated as follows;
h(t) = -16t² + 96t
h(0) = -16(0)² + 96(0)
h(0) = 0.
For the maximum height, we have:
h(t) = -16t² + 96t
h'(t) = -32t + 96
32t = 96
t = 96/32
t = 3
Difference in time = 4 - 3
Difference in time = 1 seconds.
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Write the equation of the line that passes through the points (-1, -7) and (1, 7).
Put your answer in fully simplified point-slope form, unless it is a vertical or
horizontal line.
Answers
The line's equation in the form of a point-slope is y + 7 = 7 (x + 1).
Meaning of slope:A mathematical description of the steepness as well as the direction of a line is its slope, commonly referred to as its gradient. Despite the lack of obvious justification, the letter "m" is frequently used to represent slope. Though it is written as "y = mx + b" and "y = mx + c," respectively.
According to the given data:Slope:
slope = y2 - y1 / x2 - x1.
Slope halt the form:
y = mx + b.
Slope develop at a point.:
y - y1 = m ( x - x1) ( x - x1)
Common Form. Ax + By = C.
x - axis. the graph's horizontal axis.
y - axis. the graph's vertical axis.
intercept with X. the location where a line crosses the x axis at an angle.
intercepting at Y.
An equation for a line is denoted by the formula: y - y0 = m(x-x0), where m is the slope of the line and (x0, y0) is any point on the line.
Using the coordinates (-1, -7) and (1, 7), calculate the slope:
m = 7 + 7 / 1 + 1m = 7.
Substitute the slope and (-1, -7) in the formula to obtain:
y - (-7) = 7 (x-(-1))=> y + 7 = 7 (x+ 1)
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a study was made on the amount of converted sugar in a certain process at various temperatures. the data were coded and recorded in the accompanying table. use this information to answer parts a through c.
Answers
a. Correlation coefficient, r. =0.76751
b. Linear regression line y=6.5071+1.3929x
c. mean amount of sugar when temp. is 1.7
then y=8.87503
What a correlation coefficient means?A correlation coefficient is a statistical indicator of how well changes in one variable's value predict changes in another. When two variables are positively linked, the value either rises or falls together.
What is linear regression with example?According to linear regression, sales are predicted to equal 168 + 23 advertising when using advertising as the predictor variable. This means that if spending on advertising is increased by one million euros, sales should grow by 23 million euros, and if no advertising was done, sales should be 168 million euros.
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Which statements about the sum of the interior angle measures of a triangle in Euclidean and non-Euclidean geometries are true? A. In Euclidian geometry the sum of the interior angle measures of a triangle is 180 degrees, but in elliptical or spherical geometry the sum is less than 180 degrees. B. In Euclidian geometry the sum of the interior angle measures of a triangle is 180 degrees, but in elliptical or spherical geometry the sum is greater than 180 degrees. C. In Euclidian geometry the sum of the interior angle measures of a triangle is less than 180 degrees, but in hyperbolic geometry the sum is equal to 180 degrees. D. In Euclidian geometry the sum of the interior angle measures of a triangle is greater than 180 degrees, but in hyperbolic geometry the sum is less than 180 degrees. E. In Euclidian geometry the sum of the interior angle measures of a triangle is 180 degrees, but in hyperbolic geometry the sum is less than 180 degrees.
Answers
Answer:
its b and e
Step-by-step explanation:
The statements given in options B and E are true so options B and E are right options.
Given some statements we have to determine that which of the following statements are true
The given statements are as follows
A. In Euclidean geometry the sum of the interior angle measures of a triangle is 180 degrees, but in elliptical or spherical geometry the sum is less than 180 degrees.
B. In Euclidean geometry the sum of the interior angle measures of a triangle is 180 degrees, but in elliptical or spherical geometry the sum is greater than 180 degrees.
C. In Euclidean geometry the sum of the interior angle measures of a triangle is less than 180 degrees, but in hyperbolic geometry the sum is equal to 180 degrees.
D. In Euclidean geometry the sum of the interior angle measures of a triangle is greater than 180 degrees, but in hyperbolic geometry the sum is less than 180 degrees.
E. In Euclidean geometry the sum of the interior angle measures of a triangle is 180 degrees, but in hyperbolic geometry the sum is less than 180 degrees.
We know some facts about each type of geometry
In Euclidean geometry plane is used to plot the points and line.
In spherical geometry uses the sphere to plot the points and circles
Elliptical geometry is such a geometry where no parallel lines exists.
The sum of interior angles of a triangle is dependent on the type of geometry we are dealing with and they can be written down in the following points
In Euclidean geometry the sum of interior angles of a triangle is 180° In spherical or elliptical geometry the sum of interior angles of a triangle is more than 180° In hyperbolic geometry the sum of interior angles of a triangle is less than 180°So from the above observations we can conclude that statements given in options B and E are true so options B and E are right options.
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The number of State Parks in California is 36 more than one third the number of State Parks in Florida. There are 85 State Parks in California. Which of the following equations would you use to find the number of State Parks in Florida? Note: f represents the number of state parks in Florida. (5 points) 3(f − 36) = 85 1 over 3 f + 36 = 85 Quantity f minus 36 all over 3 equals 85 Quantity f plus 36 all over 3 equals 85
Answers
Answer:3 f + 36 = 85 I think, hope this helps
Step-by-step explanation:
I’m certain year, there were 86 female officials in congress, which comprised of the House of Representatives and the senate. If there were 58 more female me members of the House of Representatives than female senators, find the number of females in each house of congress
Answers
Answer:
58 members of the House of Representatives, and 28 members of the senate.
Step-by-step explanation:
We can find the answer to this by simply subtracting:
86 - 58 = 28
So, there are 58 members of the House of Representatives, and 28 members of the senate.
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 3 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
Will mark the brainliest for correct answer!!!
Answers
Answer:
hexagon; not regular
Step-by-step explanation:
hope this helps
the candle was 1 inches long when new.Each half hour 3/4 inch of the candle burned away.After 4 hours,how long was the candle
Answers
After 2 hours, the candle would have burned away another 1.5 inches (4 half-hour periods * 3/4 inch burned in each period), leaving it with a length of 0 inches. At this point, the candle has completely burned down.
Therefore, after 4 hours, the length of the candle would be 0 inches.
7x^7+10x^4+4x^3-5x^11-10x^6-6x^7
Answers
The sum of the terms is x^7+10x^4+4x^3-5x^11-10x^6
How to determine the valueTo determine the value, we need to know that algebraic expressions are described as expressions that are composed of factors, constants, variables, terms and coefficients.
These algebraic expressions are also identified with the presence of arithmetic operations,
These operations are;
AdditionBracketParenthesesSubtractionMultiplicationDivisionFrom the information given, we have that;
7x^7+10x^4+4x^3-5x^11-10x^6-6x^7
collect the like terms
7x^7 - 6x^7+10x^4+4x^3-5x^11-10x^6
add the like terms
x^7+10x^4+4x^3-5x^11-10x^6
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x=? image attached please help
Answers
Answer:
i believe it's 8
Step-by-step explanation:
its just a hunch
boy can row a boat at a constant rate of 5 mi/hr in still water, as indicated in the figure. He rows upstream for 15 minutes and then rows downstream, returning to his starting point in another 10 minutes.
(a) Find the rate of the current. mi/hr
(b) Find the total distance traveled. mi
Answers
The rate of the current is 10 mi/hr and the total distance traveled is 100 mi.
Let S be the speed of the current, R be the speed of the boat in still water, t1 be the time taken to row upstream and t2 be the time taken to row downstream. The total distance traveled is given by the formula \(d = R(t1 + t2)\). In this case, \(d = 5(15 + 10) = 100 mi\).
To calculate the rate of the current, we can use the formula\(d = (R + S)t1 = (R - S)t2\). In this case, 100\(= (5 + S)15 = (5 - S)10\), which can be simplified to \(S = (100 - 50)/5 = 10 mi/hr\).
Therefore, the rate of the current is 10 mi/hr and the total distance traveled is 100 mi.
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HELP ASAP PLEASE!!
Does this image show an enlargement or a reduction?
An equilateral triangle with a side length of 3.4. An arrow points to a smaller equilateral triangle with a side length of 1.7
Enter your answer in the first Blank.
What scale factor was used?
Answers
Answer:
the image shows reduction
Step-by-step explanation:
1.7
Answer:
0.5
Step-by-step explanation:
First divide 1.7 to 3.4 and then you get your answer
Hope this helps :)
A rectangular dance floor has a width of 12 meters and a length of 16 meters. What is the length of a diagonal of the dance floor? moters
Answers
Answer:
20
Step-by-step explanation:
The diagonal of a rectangle can be found using the formula:
\(\sqrt{(l^2 + w^2)}\)
Help! ASAP!! figure rst on the graph is reflected over the y axis creating figure r's't'. figure r's't' is translated down 2 units and left 1 unit creating r"s"t". tyler knows rst = r's't' because reflections produce congruent figures. he also knows that r's't' = r"s"t" because translations produce congruent figures. what can tyler determine based on these two statements? check all that apply. 1. RST = R’’S’’T’’
2. RS = ST = TR
3. R = S = T
4. R = R’ = R’’
5. TS = T’S’ = T’’S’’
Answers
Reflections and translations do not guarantee that all corresponding sides of the figures will be equal.
What is translation and reflection?
The translation is when we slide a figure in any direction. Reflection is when we flip a figure over a line.
Based on these two statements, Tyler can determine the following:
1. RST = R’’S’’T’’
4. R = R’ = R’’
5. TS = T’S’ = T’’S’’
Tyler cannot determine that RS = ST = TR, because reflections and translations do not necessarily produce congruent figures. Similarly, Tyler cannot determine that R = S = T, because reflections and translations do not guarantee that all corresponding sides of the figures will be equal.
Hence, Reflections and translations do not guarantee that all corresponding sides of the figures will be equal.
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Company A charges $107 and allows unlimited mileage.
Company B has an initial fee of $65 and charges an additional $0.70 for every mile driven.
For what mileages will Company A charge less than Company B?
Use m for the number of miles driven, and solve your inequality for m.
Answers
Answer:
At mile 3 company A will start charging less.
Step-by-step explanation:
I came to this conclusion by realizing that no matter what company A will always charge $107 so, in theory all we needed to do was get company eight to $108. So having this mind set I created the equation, 65 + .70x . I continuously kept on changing what was in x until the price was just above Company A's. And the number that got me there was 3.
Which fact is most helpful for finding 2,100÷7
Answers
Hope this helps!
Have a great day!
A cross country train travels 2/3 miles in 11/12 of a minute.Which two statements are correct
Answers
Answer:
B) the unit rate is 1 7/11 miles per minute
E) The train travels 98 2/11 m p m
Step-by-step explanation:
Work out the volume of the prism height of 12 4 and five
Answers
The calculated volume of the prism is 702 cubic cm
Finding the volume of the prismFrom the question, we have the following parameters that can be used in our computation
The trapezoidal prism (see attachment)
The formula of the volume of a trapezoidal prism is
Volume = Base area * Height
Where we have
Base area = 1/2 * (8 + 10) * 6
Evaluate the sum of 8 and 10
Base area = 1/2 * 18 * 6
Evaluate the products of 1/2, 18 and 6
Base area = 54
Also, we have
Height = 13
So, the volume is calculated as
volume = 13 * 54
Evaluate
volume = 702
Hence, the volume of the prism is 702 cubic cm
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What is 1,000,000 written as a power with a base of 10?
Answers
Answer:
101=10 101=1
106=1,000,000 (one million) 10-5=0.00001 (one hundred thousandth)
107=10,000,000 (ten million) 10-6=0.000001 (one millionth)
108=100,000,000 (one hundred million) 10-7=0.0000001 (one ten millionth)
Step-by-step explanation:
Answer:
10^6
Step-by-step explanation: