Which of the expressions below would help you to calculate the percent
increase from Value 1 to Value 2?
Answer:
D. (Value 2 - Value 1) ÷ Value 1Step-by-step explanation:
Percent increase is the percent of the increased value over the initial value.
In our case the increase is represented by the difference of values and the initial value is Value 1.
So the matching choice is D.
=====================================
Answer choices in the comment:
A. Value 2 ÷ Value 1B. Value 1 ÷ Value 2C. (Value 2 - Value 1) ÷ Value 2D. (Value 2 - Value 1) ÷ Value 1math problem - help i need the answer for this, im very desperate for an answer.
Answer:
(x+10,y+8)
Step-by-step explanation:
If you look at the point (0,2) and it image (10,10) To go from 0 to 10 you must move 10 spaces to the right. That would be x + 10.
If you look at the same two points. You would have to move up 8 spaces to go from 2 to 10. That would be y + 8.
The same thing is true with the second two points given.
There are 95 males and 125 females participating in a marathon. What
percent of the participants are female? Round your answer to the nearest
hundredth.
Answer: 55.56%
Step-by-step explanation:
To find the percentage, we need to do part over whole. Part being the females and the total marathon runners being the total. So that would be 95/95+125, then 95/225, then 55.555555 and repeating. Then we would round that to 55.56%.
5x+13≥−37. find for x
Answer:
x ≥ -10
Step-by-step explanation:
Given equation,
→ 5x + 13 ≥ -37
Now the value of x will be,
→ 5x + 13 ≥ -37
→ 5x ≥ -37 - 13
→ x ≥ -50/5
→ [ x ≥ -10 ]
Hence, the value of x is -10.
What’s 1,598 fewer then 25,876
Answer:
24,278
Step-by-step explanation:
for a lower tail test, the test statistic z is determined to be zero. what is the p-value for this test?
0.5 is the p-value for this Z -test .
What is the Z test's p-value?
For each test, the p-value is the likelihood that the null hypothesis will be correct, which is expressed as the probability of receiving a z-value . an absolute value at least as great as the one we actually observed in the sample data.P-value, or probability value, is the likelihood that a statistic will be at least this distant from the mean if the null hypothesis is assumed to be true. So it can be thought of as a conditional probability, to put it another way.For a lower tail test, the test statistic z is determined to be zero that means
P(z<0)
Then p-value is
p-value = P(z<0) = 0.5 (From z score table )
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What is the slope of the line?
Answer:
8/2 or 4/1
Step-by-step explanation:
To find the slope, you simply count how high up one point is from another (0,0 to 2,8) and then how far over. Since 2,8 is 8 points up from 0,0 the numerator of our slope would be 8; and since 8,2 is two over from 0,0 the denominator is 2. Simplify this to 4/1.
Jonathan earned the following scores on his math test 82,79,85,100,46,92,88 what is his mean test score?
Answer:
496.5714285714
Step-by-step explanation:
82+79+85+100+46+92+88
7
=496.5714285714
Find the slope of the line that passes through (10, 6) and (3, 11).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answer:
-5/7
Step-by-step explanation:
know what to put here don't know how to explain!
Write an equation of the line, in point-slope form, that passes through the two given points.
points: (-9,5), (17,-8)
The required equation of the line is y = -(1/2)x + 1/2 which passes through the points (-9,5), (17,-8).
What is the slope of the line?The slope of a line is expressed as the gradient of the line.
Given that line passes through the points (-9,5), (17,-8)
Let the required line would be y - y₁ = (y₂ - y₁)/(x₂ -x₁ )[x -x₁]
x₁ = -9, y₁ = 5
x₂ = 17, y₂ = -8
⇒ y - y₁ = (y₂ - y₁)/(x₂ -x₁ )[x -x₁]
Substitute values in the equation, we get
⇒ y - 5 = (-8- 5)/(17-(-9))[x -(-9)]
⇒ y - 5 = (-13)/(26)[x +9]
⇒ y - 5 = -1/2(x +9)
⇒ y = -(1/2)x - 9/2 + 5
⇒ y = -(1/2)x + 1/2
Therefore, the equation of the line is y = -(1/2)x + 1/2 which passes through the points (-9,5), (17,-8).
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Refer to the figure below. M
The measure of the angle ∠C is 17°.
The angle having a measure equal to 32° and the angle ∠B form a linear pair. They are supplementary angles. When two lines cross, they generate a pair of neighbouring angles called a linear pair. A linear pair's two angles are always supplementary, which means their measurements add up to 180 degrees. The sum must be equal to 180°.
32° + ∠B = 180°
∠B = 180° - 32° = 148°
Now, we will use the angle sum property of a triangle. The sum of all the angles in a triangle is equal to 180°.
∠B + ∠C + 15° = 180°
148° + ∠C + 15° = 180°
∠C + 163° = 180°
∠C = 180° - 163° = 17°
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What is the answer to x - 5 > 12?
Answer:
x > 17
Step-by-step explanation:
x - 5 > 12 ( isolate x by adding 5 to both sides )
x > 17
-------------- from your comment
x - (- 5) > 12 , that is
x + 5 > 12 ( subtract 5 from both sides )
x > 7
a rectangle has length 3 cm greater than it’s width. If it has an area of 28cm 2, find the dimensions of the rectangle
The length of the rectangle is 7 centimeter and the width of the rectangle is 4 centimeter
A rectangle has length 3 cm greater than it’s width
Consider the width of the rectangle = x
The length of the the rectangle = x + 3
The area of the rectangle = 28 square centimeter
The area of the rectangle = The length of the the rectangle × The width of the rectangle
Substitute the values in the equation
x(x+3) = 28
Apply the distributive property
[tex]x^2[/tex] + 3x = 28
[tex]x^2[/tex] + 3x -28 = 0
Split the middle term and solve the equation
[tex]x^2[/tex] -4x + 7x -28 = 0
Take common term outside
x(x-4) + 7(x-4) =0
Take common term outside
(x+7) (x-4) = 0
x = -7, 4
The length cannot be negative value
x = 4 centimeter
Then the length of the rectangle = x + 3
= 4 +3
= 7 centimeter
Hence, the length of the rectangle is 7 centimeter and the width of the rectangle is 4 centimeter
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Arun runs a farm stand that sells raspberries and grapes. Each pound of raspberries
sells for $1.50 and each pound of grapes sells for $2.75. Arun made $130.25 from
selling a total of 66 pounds of raspberries and grapes, Determine the number of
pounds of raspberries sold and the number of pounds of grapes sold.
Answer:
41 pounds of raspberries and 25 pounds of grapes
Step-by-step explanation:
x = pounds of raspberries
y = pounds of grapes
1.50x + 2.75y = 130.25
x + y = 66 --> y = -x + 66
Substitute and solve for x:
1.50x +2.75(-x +66) = 130.25
1.50x - 2.75x + 181.5 = 130.25
150x - 275x + 18150 = 13025
-125x +18150 = 13025
-125x = -5125
x = 41
Substitute x to find y:
41 + y = 66
y = 25
Answer:
There were 41 pounds of raspberries sold and 25 pounds of grapes sold.
Step-by-step explanation:
Can someone answer this?
The values indicated trigonometric functions are cot(β) = 0.14, cos(β) = 0.14, tan(90-β) = 0.14 and csc(β) = 1.01
How to find the trigonometric functions?Trigonometric functions are the periodic functions that denote the relationship between angle and sides of a right-angled triangle e.g sine, cosine, tangent, etc.
Given: tan(β) = 7
Thus, β = arc tan 7 = 81.87
(a) cot(β) = 1/tan(β) = 1/7 = 0.14
(b) cos(β) = cos 81.87 = 0.14
(c) tan(90-β) = tan(90-81.87) = tan 8.13 = 0.14
(d) csc(β) = 1/sinβ = 1/sin(81.87) = 1.01
Therefore, the value of the trigonometric functions are cot(β) = 0.14, cos(β) = 0.14, tan(90-β) = 0.14 and csc(β) = 1.01
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which answer is an example of volunteer sampling? responses asking every fifth person their age asking every fifth person their age counting everyone who attends a game counting everyone who attends a game submitting an online survey submitting an online survey asking your neighbors if they approve of the mayor
Submitting an online survey is one example of volunteer sampling.
What exactly does volunteer sampling imply?When researchers look for volunteers to participate in studies, they use voluntary sampling. Volunteers can be recruited in person, online, through public postings, and through a variety of other means. When using voluntary sampling, a researcher usually makes little effort to control the sample composition.
The customer satisfaction survey is a common form of voluntary sampling. When a company provides a service or a product, it frequently asks customers to rate their satisfaction. The sample is voluntary and biased because the company asks all customers to volunteer their opinions.
Researchers in academia frequently seek volunteer samples by asking students to participate in research or by looking for people in the community. Volunteer samples are used for a variety of different types of research because they are inexpensive.
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A student solves the problem 354 divided by 24. The student finds an answer of 13 R40. Explain how you can tell that the answer is incorrect just by looking at the remainder.
Answer:
Step-by-step explanation:
When dividing, you always have to make sure that your remainder
(40) is ALWAYS less than your divisor (24)
24<40, so the students' answer is incorrect.
A company orders 11 boxed lunches from a deli for $84.15. If each boxed lunch costs the same amount, how much do 14 boxed lunches cost?
The cost for 14 boxed lunches is $107.10.
How to calculate the price?From the information, the company orders 11 boxed lunches from a deli for $84.15. Therefore, we need to calculate the unit price and this will be:
= Total amount / Number of orders
= $84.15 / 11
= $7.65
Therefore, the value for 14 boxes will be:
= Unit price × Number of orders
= $7.65 × 14
= $107.1
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Find the product. (a2)(2a3)(a2 â€"" 8a 9) 2a7 â€"" 16a6 18a5 2a7 â€"" 16a6 â€"" 18a5 2a8 â€"" 16a7 18a6 2a12 â€"" 16a7 18a6
Find the ratio of men to women in a bowling league containing 12 men and 8 women. Write in lowest terms
Answer:
[tex]\frac{3}{2}[/tex]
Step-by-step explanation:
Divide the top and bottom on the fraction by 4
The price of a movie ticket at the theater is $7 for students.
The price is higher for adults.
A group of 4 students and 3 adults paid $64 in all for movie tickets.
How much does each adult ticket cost?
Each adult tickets costs
The cost of each adult ticket for watching movie at the theatre equals to $12.
How do we derive the cost of each adult ticket?Given data:
Student ticket price = $7
Group of 4 students and 3 adults paid $64 in all for movie tickets.
The computation of each of the adult ticket cost is as follows:
Let x be the cost of each adult ticket.
Then, cost of 3 adult tickets = 3x.
Now:
The cost of 1 student ticket = $7
The cost of 4 student ticket = $7(4)
Then, we get the following equation:
7(4) + 3x = 64
18 + 3x = 64
3x = 64 - 18
3x = 36
x = 12
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The dot plot shows 20 students' scores on a quiz
in English class.
Quiz Scores
If one student from the class is chosen at
random, what is the probability that he or she
scored MORE than 15 points on the quiz?
Answer:
Probability = A. 2 / 5
Step-by-step explanation:
Probability = ( Number of Favorable Outcomes ) / (Total Number of Outcomes )
So the Total Number of Students = 20
Number of Students ( Dots ) scored more than 15 = 3+2+1+2 = 8
Probability = 8 / 20 = 2 / 5
Glad to Help
Answer: 12/20= 3/5
Step-by-step explanation:
you have to count all the dots on the dot plot to find your denominator which is 20.
then you count all the dots that are fifteen or more and there are 12 so 12/20 is the probability which is simplified into 3/5.
He makes a total of $500 for every 3 clients he
acquires.
How much money will 21 clients bring in?
3 thousand 500 dollars
Step-by-step explanation:3x7=21
Select the correct answer.
What is the domain of function f?
Answer:
D
Step-by-step explanation:
The domain of this function is all real numbers because you can see that there are no endpoints on the graph. The function is going off of the graph, which means it is continuing aka never-ending.
(-∞,∞) aka all real numbers
calculate a 95% confidence interval for the effect of a one unit increase in exercise on resting heart rate for a non-smoker
A level of confidence of 95% was used in the case above. A table at the back of a statistics textbook can be used to get the value of z* for a certain confidence level. For a 95% confidence level, the value of z* is 1.96.
An error margin of 3.92 is discovered when the value of z*, the demographic standard error, and the sample size are entered into the equation.
Statistical Estimation's Justification
Where does the confidence interval calculation formula come from?
The population mean's true value is never known; it can only ever be estimated or approximated. The easiest way of doing this is to choose many identical-sized random samples from the population.
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Find the solution for −0.5x − 3.69 = x − 1.9 − 2.39. x = 0.4 x = −0.4 x = 2.5 x = −2.5
The solution for the given expression -0.5x-3.69=x-1.9-2.3 is x= 0.34
The given problem is related to an algebraic expression which is the thought of expressing numbers utilizing letters or letter sets without indicating their real values, which is made up of factors and constants, at the side of logarithmic operations (expansion, subtraction, etc.). Expressions are made up of terms.
since the given expression is :
-0.5x-3.69=x-1.9-2.3
=>-0.5x-x=-1.9-2.3+3.69
=>-1.5x=-0.51
=>x=0.34
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. Identify the key features of g(x) = x², including the domain, range, x and y intercepts, and
intervals of increase and decrease.
The required key features of [tex]g(x) = x^{2}[/tex] including domain is (-∞, ∞) (i.e. all real values), range = [0,∞), x-intercept = (0,0), y-intercept = (0,0), interval of increasing = (0,∞) and interval of decreasing = (-∞, 0)
What is a quadratic function?
A polynomial function with one or more variables, where the largest exponent of the variable is two, is referred to as a quadratic function.
The graphs of quadratic functions are frequently curved or nonlinear. A parabola, a kind of U-shaped curve, is the particular type of curve that makes up the graph of a quadratic function.
Given, [tex]g(x) = x^{2}[/tex]
The graph of the given function is given below:
From the graph,
Domain = (-∞, ∞) (i.e. all real values)
Range = [0,∞)
x-intercept = (0,0)
y-intercept = (0,0)
Interval of increasing = (0,∞)
Interval of decreasing = (-∞, 0)
Hence, these are the required key features of [tex]g(x) = x^{2}[/tex].
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Write and graph linear equations
The equation of linear equation is y = -5x +3.
What is equation of linear equation?
A linear equation is an algebraic equation where each term has an exponent of 1 and when this equation is graphed, it always results in a straight line. This is the reason why it is named as a 'linear equation'.
The standard form or the general form of linear equations in one variable is written as, Ax + B = 0; where A and B are real numbers, and x is the single variable. The standard form of linear equations in two variables is expressed as, Ax + By = C; where A, B and C are any real numbers, and x and y are the variables.
The slope intercept form of linear equation is
y = mx + b
where m is the slope.
Given,
The slope = -5
and the points are (4, -17)
y = -17, x = 4, m = -5
-17 = -5(4) + b
-17 = -20 + b
-17 + 20 = b
b =3
The equation of linear equation is y = -5x + b
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Angie bikes for 20 minutes burning 150 calories. How many calories will he burn if he bikes for 25 minutes
Answer:
I think it's 187.5
Step-by-step explanation:
I divided 150 by 20 and got 7.5.
i multiplied 7.5 by 25 and got 187.5
Hop this is correct and helps you.
on the grid,draw the graph of y=2x-3 for values of x from -3 to 5
The graph of the equation y = 2x - 3 at the interval of -3 to 5 is attached below.
Graph:
Graph means the diagram that shows the variation of a variable in comparison with that of one or more other variables.
Given,
Here we have the equation y = 2x - 3
Now, we need to plot the graph of the given equation at the interval of -3 to 5..
To plot the graph for the given function,
The given interval is taken as the value of x and we have to calculate the value of y from it,
Now, we have to take the given interval -3, -2, -1, 0, 1, 2, 3, 4, 5 are the samples value for x.
So, we have to apply the values on the equation,
Then we get the value of the function as,
x = -3 => y = 2(-3) - 3 = -6 - 3 = 9
x = -2 => y = 2(-2) - 3 = -4 - 3 = -7
x = -1 => y = 2(-1) - 3 = -2 - 3 = -5
x = 0 => y = 2(0) - 3 = 0 - 3 = -3
x = 1 => y = 2(1) - 3 = 2 - 3 = -1
x = 2 => y = 2(2) - 3 = 4 - 3 = 1
x = 3 => y = 2(3) - 3 = 6 - 3 = 3
x = 4 => y = 2(4) - 3 = 8 - 3 = 5
x = 5 => y = 2(5) - 3 = 10 - 3 = 7
The completed table is attached below.
Now, we have to plot the graph through the derived table, then we get the graph like the following.
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