Answer:
20 hours
Step-by-step explanation:
first calculate volume:
12x10x3=360
then divide by 18
360/18=20
So 20 hours in total
Is the line through points P(2,-9) and Q(6, -13) perpendicular to the line through points R(5,-1) and
S(1,-5)? Explain
Answer:
yes they are perpendicular to eachother because when both the lines cross it makes a right angle 90 degrees making it perpendicular
Step-by-step explanation:
The difference of two trinomials is x2 − 10x + 2. If one of the trinomials is 3x2 − 11x − 4, then which expression could be the other trinomial? 2x2 − x − 2 2x2 + x + 6 4x2 + 21x + 6 4x2 − 21x – 2
Answer: \(4x^2-21x-2\) .
Step-by-step explanation:
Given: The difference of two trinomials is \(x^2 -10x + 2\). If one of the trinomials is \(3x^2 - 11x - 4\).
Then, the other trinomial will be (\(3x^2 - 11x - 4\) ) + (\(x^2 -10x + 2\))
\(=3x^2-11x-4+x^2-10x+2\\\\=3x^2+x^2-11x-10x-4+2\\\\=4x^2-21x-2\)
Hence, the other trinomial could be : \(4x^2-21x-2\) .
Find the length of the loan in months, if $600 is borrowed with an annual simple interest rate of 9% and with $681 repaid at the end of the loan.
Length of the loan =__________ months
The length of the loan in months is 151. 33 months
How to determine the length of timeThe formula for determining simple interest is expressed as;
I = PRT/100
Where;
I is the simple interestP is the principal amountR is the simple interest rateT is the time in yearsFrom the information given, we have that;
Principal interest = $600
Simple interest = $681
Rate = 9%
Substitute the values into the formula
$681 = $600 × 9 × T/100
Multiply the numerators
$681 = 5400T/100
cross multiply
68100 = 5400T
Divide both sides by 5400
T = 68100/5400
T = 12. 61 years
Convert the years to months
T = 12.61(12)
T = 151. 33 months
Hence, the value is 151. 33 months
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no links I can use structure to evaluate expressions with more than one term.
A.
strongly agree
B.
agree
C.
disagree
D.
strongly disagree
I wish I could help but I don't know
Explain how the shapes shown have been sorted. Two groups of shapes. In group A, one shape has four equal side lengths of three, and no right angles. The opposite sides are parallel. Two shapes have two pairs of opposite equal side lengths. One shape has side lengths of four and eight. The other side lengths are three and two. Opposite sides are parallel, and there are no right angles. In group B there are three four sided shapes. One has opposite equal side lengths of seven and four and four right angles. One shape has four equal side lengths of three and four right angles. One shape has one set of opposite parallel sides and one right angle. None of the side lengths in the last shape are equal.
There are different kinds of shapes. The shapes have been sorted below:
The shape that has one shape has four equal side lengths of three, and no right angles is rhombus.The opposite sides are parallel is parallelogram .Two shapes have two pairs of opposite equal side lengths is a parallelogram.A shape that has side lengths of four and eight is quadrilateral and octagon.Opposite sides are parallel, and there are no right angles is a parallelogramHeptagon has opposite equal side lengths of seven Quadrilaterals and triangle shape has shape has four equal side lengths of three and four right angles.Trapezoids has one set of opposite parallel sides and the shape that has one right angle is right-angled triangles.None of the side lengths in the last shape are equal is scalene triangle. What do you understand by the term shapes?The term shape is a word that connote the form or dimensions of an object and also their outline.
It is made up of outer boundary and also outer surface. Most of everything in the world today do have shape.
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Answer:
rectangle
Step-by-step explanation:
trust
I need help on this please! Thanks
Answer:
B. The product of 5 and a number.
Product means multiplication is taking place. In this case, 5 is being multiplied with n.
Hope this helps!
When 1370 subjects were asked, "On how many days in the past 7 days have you felt lonely?" the mean was 1.5 and the standard deviation was 2.16. The margin of error for a 95% confidence interval for the population mean is 0.12. Construct that confidence interval, and interpret it. The confidence interval goes from nothing to nothing. (Round to two decimal places as needed.)
Answer:
Confidence Interval = (1.41, 1.59)
Step-by-step explanation:
To construct a confidence interval for the population mean, we can use the following formula:
Confidence Interval = sample mean ± (margin of error * standard error)
where the standard error is equal to the standard deviation divided by the square root of the sample size.
Given the information provided, we can calculate the standard error as:
standard error = 2.16 / sqrt(1370) = 0.058
Then, we can calculate the margin of error as 0.12.
Substituting these values into the formula, we get:
Confidence Interval = 1.5 ± (0.12 * 0.058)
Confidence Interval = (1.41, 1.59)
Therefore, we can interpret the 95% confidence interval as follows: we are 95% confident that the true population mean of the number of days that people feel lonely in the past 7 days is between 1.41 and 1.59. This means that if we were to take many samples of 1370 subjects and compute the confidence intervals for each sample using the same method, we would expect about 95% of the intervals to contain the true population mean.
120÷900 procedimiento matemática y explicación escrita
Answer:
0.1333
Step-by-step explanation:
Dado: 120 ÷ 900
\(\frac{120}{900}\)
\(\frac{12}{90}\)
= 0.1333
Answer:0.133333333
Step-by-step explanation:
Look man or lady,i dont speak Spanish, but that is the answer.(plus add a bar notation for the 3.
24 kg is how many grams
Answer:
24*10^3=24000
Step-by-step explanation:
Answer:
the answer is 24000 grams
Step-by-step explanation:
hope this helped
8/2-4x6:(2+6) how it’s
Answer:
= -12x+10
Step-by-step explanation:
Answer:
Its -12
Step-by-step explanation:
its -12 because 8/2-4x8= -20 and 2+6 is 8 then you add -20 by 8 then you have an Answer of -12
What is the slope intercept form.
Answer:
y = -\(\frac{3}{7} x - 2\)
Step-by-step explanation:
slope-intercept form : y = mx + b
Solve for y.
Subtract 3x on both sides. You get --> 7y = -3x - 14
Divide by 7 on both sides. You get --> y = \(\frac{-3x-14}{7}\)
Simplfy it. -14/7 = 2 so you get y = -\(\frac{3}{7} x - 2\)
Which of the following statements about the image below is true?
Answer:
d. Line UR and Line VW are parallel
Step-by-step explanation:
If they were to continue going straight, they would not touch, making them parallel.
I hope this helps!
HELP ME ASAP PLS. If 19,432 divided by x equals 48 with a remainder of 232. What is X?
The value of x, given that when it divides a number, there is a quotient and a remainder, is 400
How to find the value of x?To find the value of divisor, we can use a variant of the division algorithm formula :
Divisor = ( Dividend - Remainder ) / Quotient
x is the divisor
Dividend = 19, 432
Remainder = 232
Quotient = 48
This means that the value of x is:
x = ( 19, 432 - 232 ) / 48
x = 19, 200 / 48
x = 400
In conclusion, x is 400.
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find the approximate area of the sector
blank cm2
Answer:
If Im NOT MISTAKEN its 7.41
Step-by-step explanation:
Cos(A-B)=84/85 and secA=17/8 find the value of sinB.
Answer: We can use the trigonometric identity cos(A - B) = cosA cosB + sinA sinB and the given value of cos(A - B) to find the value of cosA cosB - sinA sinB. Then, we can use the given value of secA to find the value of cosA, and use the fact that secA = 1/cosA to find the value of sinA. Finally, we can solve for sinB using the equation we obtained earlier.
cos(A - B) = cosA cosB + sinA sinB
84/85 = (17/8) cosB + sinA sinB
We can rewrite the expression (17/8) cosB + sinA sinB as (17/8) (cosB + (1/17) sinA sinB), and then square both sides of the equation to obtain:
(84/85)^2 = (17/8)^2 (cosB + (1/17) sinA sinB)^2
Simplifying, we get:
(cosB + (1/17) sinA sinB)^2 = (84/85)^2 / (17/8)^2
cosB + (1/17) sinA sinB = ± (84/85) / (17/8)
cosB + (1/17) sinA sinB = ± 32/85
Now, we can substitute the values of secA and cos(A - B) to obtain:
cosA = 1/secA = 8/17
cosA cosB - sinA sinB = cos(A - B) = 84/85
Substituting these values into the expression we obtained earlier, we get:
(8/17) cosB - sinA sinB = 84/85
Multiplying both sides by 17/8, we get:
cosB - (17/8) sinA sinB = (17/8) (84/85)
Adding this equation to the previous equation, we get:
2 cosB = (17/8) (84/85) + (32/85)
Solving for cosB, we get:
cosB = [(17/8) (84/85) + (32/85)] / 2 = 83/85
Using the identity sin^2(A) + cos^2(A) = 1 and the fact that secA = 1/cosA, we can find the value of sinA:
sin^2(A) + cos^2(A) = 1
sin^2(A) = 1 - cos^2(A)
sinA = ±sqrt(1 - cos^2(A))
sinA = ±sqrt(1 - (8/17)^2) = ±15/17
Since secA = 17/8, we know that cosA is positive, and therefore sinA must also be positive. Therefore, sinA = 15/17.
Now, we can use the equation we obtained earlier to find the value of sinB:
cosB - (17/8) sinA sinB = (17/8) (84/85)
Substituting the values we obtained for cosB, sinA, and the given value of secA, we get:
83/85 - (17/8) (15/17) sinB = (17/8) (84/85)
Simplifying, we get:
sinB = [(83/85) - (17/8) (15/17) (85/84)] / [(17/8) (85/84)]
sinB = -24/85
Therefore, the value of sinB is -24/85.
Step-by-step explanation:
Y is 2 when x is 9. what is y when x is 6
\(\qquad \qquad \textit{inverse proportional variation} \\\\ \textit{\underline{y} varies inversely with \underline{x}} ~\hspace{6em} \stackrel{\textit{constant of variation}}{y=\cfrac{\stackrel{\downarrow }{k}}{x}~\hfill } \\\\ \textit{\underline{x} varies inversely with }\underline{z^5} ~\hspace{5.5em} \stackrel{\textit{constant of variation}}{x=\cfrac{\stackrel{\downarrow }{k}}{z^5}~\hfill } \\\\[-0.35em] ~\dotfill\)
\(\stackrel{\textit{"y" varies inversely with "x"}}{y = \cfrac{k}{x}}\hspace{5em}\textit{we also know that} \begin{cases} y=2\\x=9 \end{cases} \\\\\\ 2=\cfrac{k}{9}\implies 18 = k\hspace{9em}\boxed{y=\cfrac{18}{x}} \\\\\\ \textit{when x = 6, what's "y"?}\qquad y=\cfrac{18}{6}\implies y=3\)
The question is asked in the attached file,. Kindly someone answer it in the best way.
According to the Empirical Rule, 99.7% of the measures fall within 3 standard deviations of the mean in the normal distribution.
What does the Empirical Rule state?The Empirical Rule states that, for a normally distributed random variable, the symmetric distribution of scores is presented as follows:
The percentage of scores within one standard deviation of the mean of the distribution is of approximately 68%.The percentage of scores within two standard deviations of the mean of the distribution is of approximately 95%.The percentage of scores within three standard deviations of the mean off the distribution is of approximately 99.7%.More can be learned about the Empirical Rule at https://brainly.com/question/10093236
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What is the slope of the line containing (–2, 5) and (4, –4)? A. -2 B. 1 C. 1/2 D. -1/2
The slope of the line on this graph with points (2, 5) and (4, 4) is equal to: D. =1/2.
How to calculate the slope of a line?In Mathematics and Geometry, the slope of any straight line can be determined by using the following mathematical equation;
Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)
Slope (m) = rise/run
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Substituting the given data points into the slope formula, we have the following;
Slope (m) = (5 - 4)/(2 - 4)
Slope (m) = -1/2
In this context, we can reasonably infer and logically deduce that the slope of the line on this graph is equal to -0.5 or -1/2.
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You are the manager of a rental car company. A customer, Sandy Furrow, has asked you for an estimate of charges for a nine day rental of an SUV. She expects to drive 670 miles. If the company charges $52.50 per day plus 1612 cents per mile for this category of vehicle, what would be the total rental charge (in $) for Sandy's trip
Using a linear function, it is found that the total rental charge will be of $159.7.
-----------
A linear function has the following format:
\(y = mx + b\)
In which:
m is the slope, which in the context of this problem, is the cost per mile.b is the y-intercept, which in the context of this problem, is the fixed cost.-----------
Cost of 16 cents per mile means that \(m = \frac{16}{100} = 0.16\)Cost of $52.50 per day means that \(b = 52.50\)Thus, the linear function for the charge y in function of the number of miles x is:
\(y(x) = 0.16x + 52.50\)
-----------
The cost of driving 670 miles is \(y(670)\), that is, y when x = 670.\(y(670) = 0.16(670) + 52.50 = 159.7\)
The total cost of her trip will be of $159.7.
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10. The total cost of a candy bar and a bag of chips is $1.70. If the cost of a candy bar and 2 bags of chips is
$2.45, what is the cost of a candy bar?
Answer: maybe 75 cents
Step-by-step explanation:
Answer:
The cost of a candy bar is $0.75.
Step-by-step explanation:
With the provided first sentence preceded along the lines, 'total cost of a candy bar and a bag of chips is $1.70.'
--Intially, determine the quotient of 1.70 and the two quantities.
+ Result should be 0.85
Thus symbolizing .85 is the valid price of a candy bar and a bag of chips.
------------------------- Although, we are not done. -----------------------------------
Let's take the second sentence into account.
"If the cost of a candy bar and 2 bags of chips is $2.45, what is the cost of a candy bar?"
Determine the sum of .75 and (.85*2)
Alert: .75 came from subtracting 10 from the intial .85
Thus the sum is $2.45, which was stated earlier as the cost of a candy bar and 2 bags of chips.
Given the function h(x)=-5 √x, which statement is true about h(x)?
The function is decreasing on the interval (–∞, 0).
The function is increasing on the interval (–∞, 0).
The function is decreasing on the interval (0, ∞).
The function is increasing on the interval (0, ∞).
The true statement about h(x) is (c) the function is decreasing on the interval (0, ∞)
How to interpret the function?The function is given as:
h(x) = -5√x
Next, we plot the graph of the function h(x)
From the attached graph, we can see that:
As x increases from 0, the function value decreases
Hence, the true statement about h(x) is (c) the function is decreasing on the interval (0, ∞)
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Suppose the population of a certain city is 3339 thousand. It is expected to decrease to 2694 thousand in 50 years. Find the percent decrease.
Answer:
-19.3%
Step-by-step explanation:
The percentage change in a value is computed from ...
percent change = ((new value) -(old value))/(old value) × 100%
= (2694 -3339)/3339 × 100% = -645/3339 × 100% ≈ -19.3%
The decrease in 50 years is about 19.3%.
What is the solution to the trigonometric inequality sin(x)>cos(x) over the interval 0<=x<=2piradians?
ANSWER: C
Answer:
x > π/4Step-by-step explanation:
Given the inequality expression
sin(x)>cos(x)
Divide both sides by cos(x)
sin(x)/cos(x)>cos(x)/cos(x)
tan(x) > 1
x > tan⁻¹1
x > 45⁰
x > π/4
Hence the required solution is x > π/4
I need some help with this! Will give brainliest!
Answer:
see below
Step-by-step explanation:
center of circle = (2,-1)
r = 6 -2 = 4
We know that the general equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius.
so the equation will be:
( x - 2 )^2 + ( y +1 )^2 =16
what is (d^1 3^1 d^3)^2
Answer:
Simplify the solution: 13^1d^3
Step-by-step explanation:
Any expression raised to the power of one equal itself.
What is the meaning of "\(F=\left \{ (x,y):\varphi (x,y,p) \right \}\)"?
The expression "F = {(x, y) : φ(x, y, p)}" represents a set of ordered pairs (x, y) that satisfy a condition defined by the function φ. The interpretation and nature of the set F depend on the specific function φ and the parameter p, which determine the relationship between the variables x, y, and p.
The expression "F = {(x, y) : φ(x, y, p)}" represents a set F consisting of ordered pairs (x, y) that satisfy a particular condition defined by the function φ, which takes the variables x, y, and p as inputs.
To fully understand the meaning of F, we need to delve into the function φ and its relationship with the variables x, y, and p. The function φ could represent a wide range of mathematical relationships or conditions that determine the inclusion of certain pairs (x, y) in the set F.
For instance, let's consider a specific example where vraphi(x, y, p) is defined φ(x, y, p) = \(x^2 + y^2 - p^2.\)In this case, F = {(x, y) : \(x^2 + y^2 - p^2\)= 0} represents a set of ordered pairs (x, y) that satisfy the equation \(x^2 + y^2 - p^2 = 0.\) This equation represents a circle with radius p centered at the origin (0, 0). Consequently, F corresponds to all the points lying on the circumference of this circle.
It is important to note that the specific meaning and implications of F heavily rely on the nature of the function φ and the parameter p. Different functions and parameters will yield distinct sets F with their own unique characteristics and interpretations.
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Determine the slope of the line that passes through the following points. m=5/7, or m=7/5, or m=1/3, or m=3
Between (5,10) and (15,70), a line runs. As a result, the slope of the line through the supplied locations is 3.
What is slope?A line's steepness and direction are measured by the line's slope.
Without actually using a compass, determining the slope of lines in a coordinate plane can assist in forecasting whether the lines are parallel, perpendicular, or none at all.
Any two different points on a line can be used to calculate the slope of any line.
A line's slope is determine by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively.
Two locations located on a straight line can be used to determine a line's slope. We can use the slope of line formula if we know the two spots' coordinates. These two points' coordinates should be-
P1 = (x1, y1) and P2 = (x2, y2)
Hence, Between (5,10) and (15,70), a line runs. As a result, the slope of the line through the supplied locations is 3.
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In our very first module, we looked at numeration systems and the different bases that various cultures used. The Babylonian system was base 60; the Mayan system was base 20 (almost); and our Hindu-Arabic system is base 10. You read in the Grace Hopper biography that computers use a base 2 system. In base 2, only two symbols are used, so all numbers are represented with 0s and 1s.
A. Change the number 100 (base ten) to a numeral in base two.
B. Change the number 1010101 (base two) to a numeral in base ten.
C. This is a fun problem! The moon is approximately 238,900miles from Earth.
Admiral Hopper explained to David Letterman that a nano-second is one-billionth of a second. The maximum distance that electricity (or light) can travel in one nano-second is approximately one foot. How many seconds will it take to send an electronic signal from Earth to the Moon? If the signal bounces right back, how long will it take for the signal to go to the moon and come back to Earth? In this episode, Leonard and the other guys send laser signal to the moon and back. Leonard will tell you how long it took for the signal to go to the moon and back.
Answer:
1100100 base 2
85 base 10
2.522784 seconds
Step-by-step explanation:
Convert 100 from base 10 to the base 2
Reduce 100 by 2 until 0 ; the reminder obtained is written from bottom to top.
2 | 100
2 | 50 r 0
2 | 25 r 0
2 | 12 r 1
2 | 6 r 0
2 | 3 r 0
2 | 1 r 1
__0 r 1
Arranging from the bottom : 1100100 base 2
100 base 10 = 1100100 base 2
1010101 base 2 to base 10
1*2^6 + 0*2^5 + 1*2^4 + 0*2^3 + 1*2^2 + 0*2^1 + 1*2^0
64 + 0 + 16 + 0 + 4 + 0 + 1 = 85 base 10
C)
1 mile = 5280 feets
Distance from earth to moon = 238900 miles
Distance in feets :
(5280 * 238900) = 1261392000 feets
Total distance from moon and back to earth = 2 * 1261392000 = 2522784000 feets
Using the relation :
Speed = distance / time
Speed = 1 feet per nano second
Distance = 2522784000 feets
1 = 2522784000 / time
Time = 2522784000 nano seconds
Converting to second :
2522784000 / 1000000000
= 2.522784 seconds
An interviewer officer selects a person not suitable for the job is:
Select one:
a. Two Directional Bias
b. None of these
c. Three Directional Bias
d. Unbaised Error
e. one direction Bias
Note: Answer B is NOT the correct answer. Please find the correct answer. Any answer without justification will be rejected automatically.
The interviewer should provide clear and concise feedback on the candidate's performance in the interview, and ensure that the feedback is related to the job requirements.
In addition, the interviewer should ask relevant questions to get an idea about the interviewee's knowledge, skills, and abilities.Overall, the interviewer should strive to be fair and objective throughout the interview process, to minimize the risk of Unbiased Errors.
An interviewer officer selects a person not suitable for the job, this error is known as Unbaised Error.What is an Unbiased Error?An Unbiased error happens when you make an incorrect judgment regarding the interviewee, which may occur when the interviewer is unable to assess the interviewee objectively.
There are many factors that could contribute to an Unbiased Error, such as the interviewer's opinions and preconceptions, their biases or prejudices, the interviewer's inadequate understanding of the job requirements, or the applicant's inadequate preparation for the interview.In an unbiased interview, the interviewer does not have any preconceived ideas or predetermined judgments about the interviewee's knowledge, skills, or abilities.
The interviewer should be able to provide equal chances for all applicants, regardless of their gender, ethnicity, or any other factors that are not related to the job requirements.The interviewer should also assess the interviewee objectively, with no favoritism or bias.
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A class has 29 students. In how many different ways can four students form a group for an activity? (Assume the order of the students is not important.)
Answer:
7.25
Step-by-step explanation:
29 divided by 4