The whole value can be found by using a phenomenon known as proportion
What is percentage?
A figure or ratio stated as a fraction of 100 is called a percentage. Although the abbreviations "pct.", "pct.", and occasionally "pc" are also used, the percent symbol, "%," is frequently used to indicate it. A % is a number without dimensions and without a measurement system.
Now we are given a percent p of a value let us say x and that value be v
We have to find the initial value let us say that value to be 'P'
To find that we use proportion
That is ratio of value to their respective percentage will be equal
Hence we will have
P/100 = v/ x
P= (v/x)*100
Hence we get the initial value
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write 312 as a product of prime factors
Answer: 312=(2)(2)(2)(3)(13)
Step-by-step explanation:
312 | 2
156 | 2
78 | 2
39 | 3
13 | 13
Hence, 312=(2)(2)(2)(3)(13)
How do you simplify 25^(3/2)?
Answer:
I'm sure the answer is 125
Step-by-step explanation:
Hope it helps ; )
How do you write 16/25 as a percent?
16/25 as a percentage is 64%.
The number in the denominator is the one below the fraction line, while the number in the numerator is the one above the fraction line.
When we talk about percentages, we really mean that it's a subset of 100. Since the word "percent" refers to a hundred, 50% is equivalent to expressing 50/100 or 5/10 in fractional form.
Therefore, since 25 is the denominator in 16/25, we might change the fraction so that 100 is the denominator.
To do that, we divide 100 by the denominator:
100/25 = 4
Once we have that, we can multiply both the numerator and denominator by this multiple:
[tex]\frac{16}{25}[/tex] × [tex]\frac{4}{4}[/tex] = [tex]\frac{64}{100}[/tex]
Now we can see that our fraction is 64/100.
Thus, 16/25 as a percentage is 64%.
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Factor the polynomial
below completely:
10m5n² + 25m³n³
(Show work please)
Answer:
[tex]5mn^{2} (2+ 5m^{2} n)[/tex]
Step-by-step explanation:
I assumed the polynomial is [tex]10mn^{2} +25m^{3}n^{2}[/tex]
FIRST: Highlight the common factors{ 5 , m and[tex]n^{2}[/tex])
[tex]5mn^{2} (2+ 5m^{2} n)[/tex]
Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.
The product of 9 and the difference of a number and 2.
Answer:
9 · (x - 2)
Step-by-step explanation:
Since the problem tells us to let "a number" be the letter x, let's rewrite the sentence to include x instead of the term "a number". Doing so gives us the sentence "The product of 9 and the difference of x and 2."
Step 1: Multiplication
Now, let's work from left to right. The first word we see is "product", which refers to the operation of multiplication, as this term is used to describe the resultant quantity from multiplying 2 numbers. From the sentence, we see that the two terms we are multiplying are "9" and "the difference of x and 2". Note that we include the difference in one of our terms because of the structure of the sentence - we usually describe a product as being a product of [one term] and [another term] as it is here.
To denote multiplication, we can use the symbol "×", but to avoid confusion between this symbol and the letter x, let's use the symbol "·". Now, we have the expression 9 · (the difference of x and 2).
Step 2: Subtraction
We still aren't done, however, because we still have some words left to "translate" into algebra. The use of the word "difference" tells us that the operation to be used is subtraction, as this term is used to describe the resultant quantity from subtracting 2 numbers. Again, the sentence tells us that the terms we are subtracting are x and 2, but which order do they go in? (This is important to consider because unlike multiplication, subtraction is not a commutative property - in other words, a - b does not necessarily equal b - a, but a · b always equals b · a.)
To answer this question, we refer again to the sentence. When dealing with a non-commutative operation, we write out the terms in the order they appear in. Therefore, "the difference of x and 2" can be represented as x - 2 (note that we use the "-" symbol as we are subtracting quantities).
Step 3: Combine the 2 Operations
Putting all of this information together, we get the algebraic expression of 9 · (x - 2). Remember to put x - 2 in parentheses, otherwise it looks like we are multiplying 9 and x and then subtracting 2 from that quantity, which is not what our original sentence was.
are there any other variables that explain the association between binge-watching tv and irritability?
Internal validity explains the association between binge-watching tv and irritability.
In the context of a specific study, internal validity refers to how strongly a piece of evidence supports a claim regarding cause and effect. It is one of the most crucial characteristics of scientific research and a crucial idea when considering evidence more generally.
The extent to which alternative explanations for a study's findings (often, sources of systematic error or "bias") can be ruled out is a measure of its internal validity. In contrast, external validity measures how well data support judgments made regarding other situations (that is, the extent to which results can be generalized).
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The volume of a cone with height 29 cm is 1758 CM3, find the radius of the conw
Answer:13.77 cm.
Step-by-step explanation:
r = sqrt((3V)/(pih))
= sqrt((31758)/(pi29))
= sqrt((5274)/(pi*29))
= sqrt(182.16)/(pi/29)
= 13.77 cm
Solve to find the value for x in the linear equation: 3(−4x + 5) = 12.
The value of x for the given linear equation; 3 ( −4x + 5 ) = 12 is; 1 / 4.
What is the value of x for the given linear equation?It follows from the task content that the value of x in the given linear equation; 3 ( −4x + 5 ) = 12 is to to be determined.
Since the given expression is;
3 ( −4x + 5 ) = 12
By the distributive property; we have;
-12x + 15 = 12
-12x = 12 - 15
-12x = -3
x = -3 / -12
x = 1/4.
Therefore, the required value of x in the given linear equation is; 1 / 4.
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a ball is thrown upward in the air from a roof at a height of 40 ft. the equation for the path the ball take can be modeled by: h(t)=-16t² + 14t + 40. with t being time in second. How many seconds will it take the ball to hit the ground?
The number of seconds will it take the ball to hit the ground will be 2.078 seconds.
What is a quadratic equation?An algebraic equation of the second degree in x is a quadratic equation. The quadratic equation is written as ax2 + bx + c = 0, where x is the variable, and a must not be zero.
For example, 3x² + 6x + 8 = 0 here x has the highest term as 2 and the coefficient of x² is not zero.
As per the given,
h(t)=-16t² + 14t + 40
The time when the ball hit the ground h(t) = 0
-16t² + 14t + 40 = 0
-8t² + 7t + 20 = 0
8t² - 7t - 20 = 0
t = (7 ± 26.25)16
t = 2.078 seconds
Since time can never be negative thus, 2.078 seconds will be correct.
Hence "The number of seconds will it take the ball to hit the ground will be 2.078 seconds".
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An investment of $500 is made at 2.8% nominal yearly interest compounded quarterly. Write an equation that models the amount A the investment is worth t years after the principal has been invested
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra IFunctions
Function NotationCompounded Interest Rate Formula:
[tex]\displaystyle A = P \bigg( 1 + \frac{r}{n} \bigg) ^t[/tex]
Let's compile what we know (what we are given).
An investment of $500 means that our principle amount P equals 500.
2.8% nominal yearly interest means that our rate r equals 0.028.
Compounded quarterly means that our compounded rate n equals 4.
So, we have:
[tex]\displaystyle\begin{aligned}P & = 500 \\r & = 0.028 \\n & = 4 \\\end{aligned}[/tex]
Step 2: WorkIn order to find an equation that models the final amount A in terms of t years, we can simply substitute in our known variables:
[Compounded Interest Rate Formula] Substitute in variables:∴ our equation that models the amount A the investment is worth t years after the principle has been invested is:
[tex]\displaystyle \boxed{ A = 500(1.007)^t }[/tex]
___
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___
Topic: Algebra I
Unit: Interest Rate Formulas
If the perimeter of triangle is 15 centimeters what is value of n
Answer:
5 cms
Step-by-step explanation:
This is assuming that it is equilateral and that n is the length of one side
find the flux of f = xy i yz j zxk out of a sphere of radius 6 centered at the origin.
The flux = 0
Divergence Theorem: What is it?According to the divergence theorem, the volume integral of the divergence of a vector point function "F" taken over the volume "V" encompassed by the surface "S" is equal to the surface integral of the normal component of F taken over the closed surface "S." As a result, the divergence theorem is symbolically represented as:∬ v ∫ ▽ F → .
The sphere is presumably closed, so we can use the divergence theorem.
▽ F =d(xy)/dx + d(yz)/dy + d(zx)/dz
▽ F =x + y + z
Now convert to spherical coordinates:
x=ρsinφcosθ,
y=ρsinφsinθ,
z=ρcosφ
The flux is then given by the volume integral for the radius 6
[tex]\int\limits\int\limitsx_{x^{2} +y^{2}+z^{2} = 36 }[/tex] f.ds = [tex]\int\limits\int\limits\int\limitsx_{x^{2} +y^{2}+z^{2} < =36 }[/tex] (x+y+z) dv
Thus the flux = 0
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a manager for an insurance company believes that customers have the following preferences for life insurance products: 50% prefer whole life, 20% prefer universal life, and 30% prefer life annuities. the results of a survey of 300 customers were tabulated. is it possible to refute the sales manager's claimed proportions of customers who prefer each product using the data?product number whole150universal60annuities90 step 1 of 10: state the null and alternative hypothesis.
There is sufficient evidence to to refute the sales manager's claimed proportions of customers who prefer each product using the data.
H0:p1=0.5,p2=0.3,p3=0.2
Ha:At least one proportion is different from the stated proportions.
Null hypothesis indicate that proportions are same as stated.
Product observed(fo) pi Expected(fe) (fo-fe)^2/fe
Whole 74 0.5 154.50 41.943
Universal 71 0.3 92.70 5.080
Annuities 164 0.2 61.80 169.010
Total 309 1 309 216.033
Expected value for the number of customers who prefer Whole Life=309*0.5=154.50
Expected value for the number of customers who prefer Universal Life=309*0.3=92.70
Test statistic:
Chi square=216.033
df=3-1=2
critical Chi square value=CHIINV(0.01,2)=9.210
Reject the null hypothesis
Therefore, There is sufficient evidence to to refute the sales manager's claimed proportions of customers who prefer each product using the data.
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infeasibility means that the number of solutions to the linear programming models that satisfies all constraints is
Infeasibility is the absence of a solution in the set of solutions to a linear programming models which satisfy all requirements.
Explain the term Infeasibility?If no feasible solution could be created, or if no solution exists that fulfills all of the criteria, then a linear program is infeasible.
Infeasibility typically denotes a mistake of some kind because whatever real operation you are modeling must stay inside the bounds of reality. When there is no workable solution, simplex-based LP software such lp solve effectively discovers this.Finding the cause of impossibility is frequently challenging. It could be the result of incorrect numbers in the data or an error in how you specified a few of the constraints for the model. There may be a number of contributing variables, such as an imbalance between supply and demand at some warehouses and consumers.Thus, infeasibility is the absence of a solution in the set of solutions to a linear programming models which satisfy all requirements.
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What do I do here
I am really confused
Answer:
See below
Step-by-step explanation:
This is the slope formula. Do they give you two points? If they give you two points like (2,3 ) and (5,7) You subtract the y's over the subtraction of the x's
An ordered pair is in the form (x,y)
So in the example that I give the y's are 7 and 3 and the x's are 5 and 2
[tex]\frac{7-3}{5-2}[/tex] = [tex]\frac{4}{3}[/tex]
I am thinking that they gave you two points and they want you to find the slope.
Answer:
Step-by-step explanation:
Ok so this is how to find slope of a line that passes through 2 points.
(x1,y1) and (x2,y2)
and to find the slope of the line (m) you have to do (y2-y1)/(x2-x1)
you just have to plug in the points
in adult men ages 18 years and older, we are interested in what happens to testosterone levels as the men age. in this experimental design which variable is the y variable? testosterone age gender male
In this experimental design, the y variable is the testosterone levels.
A variable is defined as any symbol or letter that is used to express an unknown quantity. There are two types of variables: the dependent variable (y variable) and the independent variable ( x variable).
An independent variable (x variable) is the variable which causes the change in another variable.
A dependent variable (y variable) is the result or effect of that change in the dependent variable.
If we are interested in what happens to testosterone levels as the men age in adult men ages 18 years and older, then the x variable is the age and the y variable is the testosterone levels.
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The population of pets in Mr. Jones neighborhood in Bartlett has declined in the pass year by roughly 30%. Residents hypothesize that this is due to predation by coyotes. The current pets in Mr. Jones neighborhood is 90. Approximately how many pets were there originally?
Answer:
128 4/7
Step-by-step explanation:
100%-30%=70%
90=.7X
900=7X
128 4/7=X
From the parking lot at the red hill shopping center, the angle to the top of the hill is about 25°. From the base of the hill angle of elevation to the top of the hill is 55°. The horizontal distance between these two sight points is 740 feet. How high is red hill??
The total surface area of this 3-D object is?
in the distribution system, the water main sizes most commonly in use in newer systems are what sizes?
In the distribution system, the water main sizes most commonly in use up to 3.65m to tiny 12.7mm.
Water pipes come in a variety of sizes, from enormous mains with a diameter of up to 3.65 m to tiny 12.7 mm pipes used to supply individual outlets within a building.
Any pipe or tube intended to deliver drinking water to consumers is referred to as a water pipe. Depending on the situation, water may be treated either before distribution or at the point of use (POU). Water is typically treated before distribution in well-thought-out water distribution networks, and occasionally it is also chlorinated, to prevent recontamination on the way to the end user.
Polyvinyl chloride (PVC), cast iron, copper, steel, and, in older systems, concrete or fired clay are materials frequently used to build water pipes. Long runs of water pipe can be joined together using flange, nipple, compression, or soldered joints (SCOTT 2011).
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o owns a harley? harley-davidson motorcycles make up 14% of all the motorcycles registered in the united states. you plan to interview an srs of 500 motorcycle owners. how likely is your sample to contain 20% or more who own harleys?
The probability which motor cycle owns for sample is 0.0001
What is Sample ?
A sample is a condensed, controllable representation of a larger group. It is a subgroup of people with traits from a wider population. When population sizes are too big for the test to include all potential participants or observations, samples are utilized in statistical testing.
Given,
p= 14% or 0.14
p bar = 20% or 0.20
n=500
The mean of the sample distribution of p bar is equal to the population proportion p
µp = p =0.14
The standard deviation of sample distribution of p bar is
σp = [tex]\sqrt{p(1-p}/n[/tex]
= [tex]\sqrt{0.14(1-0.14}/500[/tex]
= 0.0155177
the z score is the value decreased by the mean, divided by the standard deviation:
z =x- µ/σ
= 0.20-.014/0.0155177
=3.87
so the corresponding probability will be
P(p>20%) = P(z>3.87) = P(Z<-3.87) = 0.0001
The likelihood that a motorcycle is present in the sample is 0.0001.
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Use these clues to find the number.
It is an even number.
* It is greater than 6 and less than 12.
* It has a 0 in the ones place.
Answer:
10
Step-by-step explanation:
0 in the 0nes place but less than 12. more than 6. so it has to be 10.
wo council members have the same major and are not permitted to serve together on a committee. how many ways can a committee of five be selected from the membership of the council?
The total number of methods to select the five-person committee and guarantee that there aren't any members with the same major is= 4004ways.
What is Probability?The ratio of good outcomes to all possible outcomes of an event is known as the probability. The number of positive results for an experiment with 'n' outcomes can be represented by the symbol x.
The probability of an event can be calculated using the following formula.
Probability(Event) = Positive Results/Total Results = x/n
In order to better grasp probability, let's look at a straightforward application.
Let's say we need to forecast if it will rain or not. Either "Yes" or "No" is the appropriate response to this query.
There is a chance that it will rain or not. Here, probability can be used. Using probability, one may forecast the results of a coin toss, a roll of the dice, or a card draw.
According to our question-
From the two students with same major we also use the combination Formula in knowing the number of ways any of the two students can be chosen. To choose one from these two students, we use the combination Formula 2C1.
the two students with same major aren't on the committee becomes:
14C5 * 2C1
2002 * 2
4004ways.
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Question Solve the equation. −2/3x+3/7=1/2 x=
Answer: x=-3/28
Step-by-step explanation:
isolate x alone and move all other numbers to the right
-2/3x+3/7-(3/7)=1/2-3/7
-2/3x= 1/14
-2/3(-3/2)+x=1/14*-3/2
x=-3/28
Fill in the blanks with two rational numbers (other than 1 and -1). -5.6 ?
Which values are solutions to the inequality?
3r≤4r−6
Select each correct answer.
Responses
r = 4
r = , 4
r = 5
r, = 5
r = 6
r, = 6
r = 7
Answer:
3r < = 4r - 6
3r - 4r < = -6
-r < = -6
r > = 6........it is 6 and 7
Step-by-step explanation:
Answer:
your answer would be 6, and 7.
Step-by-step explanation:
What would be the measure of
30°
60°
90°
None of these choices are correct.
Answer:
60
Step-by-step explanation:
both triangles are 30 60 90, angle G is made up of 2 30 degree angles
30 plus 30 is 60
What would the answer be?I need help the assignments due in tmrw i rlly need helpp
The perpendicular bisector of the line is option c)
The bisector of the angle YXZ is option B)
The perpendicular from point Z to the line XY is option G)
What is perpendicular bisector?
A line segment that bisects another line segment at a 90° angle is known as a perpendicular bisector. In other terms, a perpendicular bisector separates a line segment into two equal halves by intersecting it at a 90° angle.
We are asked to find the perpendicular bisector on the line XY
Now this means a segment dividing segment XY in two equal parts and intersecting XY at right angle
Hence This description match with option C)
Hence The perpendicular bisector of the line is option c)
Similarly,
The bisector of Angle YXZ will be the line which divides the angle in two equal parts
This description matches with option B)
Hence the correct option is option B)
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Find the value of x.
Answer:
[tex]120^{\circ}[/tex]
Step-by-step explanation:
Using the exterior angle theorem, [tex]x=50^{\circ}+70^{\circ}=120^{\circ}[/tex].
Answer:
Step-by-step explanation:
we know the inside total angles for triangle is 180 degrees.
We are given the two internal angles as 70 and 50 degrees.
So the equation can be written as
70+50+y = 180
y= 60
Also, we know that straight line is 180 degrees. Now we can write the second equation as follow:
60+x = 180
x = 120 degrees
approximate fx(3,5)fx(3,5) using the contour diagram of f(x,y)f(x,y) shown below.
The approximate of [tex]f_{x}(3,5)[/tex] ≈ 4
We have to find an approximate of [tex]f_{x}(3,5)[/tex] using the contour diagram, x and y, which was shown below. The slope of a second line is used to estimate the x and y direction. The curl f divides by the curl x is almost equal to the delta x. At the point of x, 13 is equal to 17 and 2 is equal to 18. The points are in a diagram. The curly f divides by curly x is equal to the delta f divided by delta x, which is 18 minus 17 divided by 2 minus 1. The value of a f is equal to 1. From here we can say that f of x 13 is equal to 1.
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