Answer:
Hello thanks for the question, if my answqers are correcrt pls mark brain liest
1. 56 n − 35
2. − 40 p + 13
3. − 77 k − 40
Step-by-step explanation:
Please help I need the answers ASAP.
Question 1:
\(\frac{2}{3} n-16=-\frac{5}{6}n+2\), solve for n.
\(\frac{2}{3} n-16=-\frac{5}{6}n+2\)
=> \(\frac{2}{3} n=-\frac{5}{6}n+18\)
=> \(\frac{2}{3} n+\frac{5}{6}n=18\) =>\(\frac{4}{6} n+\frac{5}{6}n=18\)
=> \(\frac{9}{6} n=18\) => \(\frac{3}{2} n=18\)
=> \(n=18(\frac{2}{3})\)
=> \(n=6(2)\)
Sol: n=12
Question 2:
\(5-\frac{1}{3}p=\frac{4}{9}p+12\), solve for p.
\(5-\frac{1}{3}p=\frac{4}{9}p+12\)
=>\(5=\frac{4}{9}p+\frac{1}{3}p+12\)
=> \(5=\frac{4}{9}p+\frac{3}{9}p+12\)
=>\(5=\frac{7}{9}p+12\)
=> \(-7=\frac{7}{9}p\)
=> \(-7(\frac{9}{7}) =p\)
=> \(-(9)=p\)
Sol: p=-9
Question 3:
The relationship between ∠2 and ∠7 is that they are alternate interior angles.
Question 4:
The relationship between ∠1 and ∠3 is that they are corresponding angles.
Question 5:
The relationship between ∠4 and ∠5 is that they are alternate exterior angles.
What is the primary disadvantage of using the range to compare the variability of data sets?
Using the range to compare the variability of data sets is a rather insensitive measure of data variance is the correct answer.
In this question,
The range tells you the spread of your data from the lowest to the highest value in the distribution. The range is the difference between the smallest and highest numbers in a list or set. To find the range, first put all the numbers in order. Then subtract (take away) the lowest number from the highest.
Data variability also known as spread or dispersion, refers to how spread out a set of data is. Variability gives users a way to describe how much data sets vary and allows users to use statistics to compare their data to other sets of data.
Thus the disadvantage of using range is that it does not measure the spread of the majority of values in a data set, it only measures the spread between highest and lowest values.
The options are a) It is a rather insensitive measure of data variance, b) It is hard to compute, c) It is a sensitive measure of data variance, d) It does not have any variance.
Hence we can conclude that using the range to compare the variability of data sets is a rather insensitive measure of data variance.
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1) Use the distributive property to factor the expression.
-24x+64
Answer:
-8(3x-8)
Step-by-step explanation:
Factor -8 out of -24x+64
Write the ratio 5/36 as a fraction in simplest form.
Use the slash key (/) to indicate a fraction.
9514 1404 393
Answer:
5/36
Step-by-step explanation:
5 and 36 have no common factors, so the fraction 5/36 is already in simplest form.
Answer:
\( \frac{5}{36} \)Step-by-step explanation:
#CARRYONLEARNINGQuestion 5 of 15
Solve: 6+ x/2 = 1/4 (x - 4) - 1
OA. There are infinitely many solutions.
OB. x= -16.
OC. x= 32
OD. X=-32
PLEASE HELP ME HURRY!!! :(
For the given equation 6+(x/2)=1/4(x-4)-1 the solution is x= -32. So, option D is correct.
What is a solution?A solution is a process of giving the unknown variables values that make the equation's equality true. A value or group of values (one for each unknown) that, when substituted for the unknowns, cause the equation to produce an equality is known as a solution.
In order to build an equation, the equal sign is placed between two numerical or variable expressions, as in 3x+5=11. The solution to an equation is a number that may be used as the variable to generate a true number statement. 6+5=11 is true, as stated by the formula 3(2)+5=11. The solution is consequently 2,
6+(x/2)=1/4(x-4)-1
(12+x)/2=(x-4-4)/4
24+2x=x-8
x= -32
Therefore, option D is correct.
For the given equation 6+(x/2)=1/4(x-4)-1 the solution is x= -32. So, option D is correct.
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Which of the following is the equation of a line in a slope= 5 and y-intercept at (0,-3)?
Answer:y=5x-3
Step-by-step explanation:
a general rehydration recommendation after exercise is 2.5 cups of fluid for every 1 pound of body weight lost. using this guideline, how much fluid would vanessa need to consume to make up for the weight that was lost during her run? calculation: 2.5 cups x lbs of body weight lost
Vanessa would need to drink about ten cups of liquid to replace the weight she lost while running.
The amount of water needed to be drank is approximately 2 cups of water are required for every pound of body weight reduced.
Vanessa would need to drink about ten cups of liquid to replace the weight she lost while running.
Refilling fluid: To add fluid to something that has been drained, in particular: to replace any fluids the body has lost from dehydration. assist a patient in hydrating.
Oral rehydration solutions (ORSs), which include Pedialyte, are used to treat dehydration. ORSs, which help replace lost fluids, include the correct ratio of salt, sugar, potassium, and other minerals.
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Complete question - A general rehydration recommendation after exercise is 2.5 cups of fluid for every 1 pound of body weight lost. Using this guideline, how much fluid would Vanessa need to consume to make up for the weight that was lost during her run?
Calculation: 2 cups x lbs of body weight lost = cups of water needed
A. Approximately 4 cups of fluid
B. Approximately 8 cups of fluid
C. Approximately 6 cups of fluid
D. Approximately 10 cups of fluid
7. Vanessa asks if she should start using sports drinks. Which of the following would best answer Vanessa's question?
A. A sports drink is not beneficial for you at this time and may provide unnecessary calories.
B. A sports drink would be beneficial to replace fluid and electrolytes when exercising for less than 30 minutes.
C. A sports drink would be beneficial on days when you are exercising for over an hour at a higher intensity.
8. If Vanessa uses a sports drink in the future, how much glucose, sodium and potassium should be provided per 24 fluid ounces of sports drink?
A. No more than 30 g of glucose, 450 g of sodium and 225 mg of potassium.
B. No more than 75 g glucose, 150 mg sodium, 175 mg potassium.
C. No more than 15 g of glucose, 500 mg sodium, 200 mg potassium.
D. No more than 45 g of glucose, 225 mg of sodium and 275 mg of potassium.
geologists unearth a sample of zircon that appears to be a closed system. they find 0.686 microgram of 206pb for 1.000 microgram of 238u present. approximately how old is the sample? yrs
geologists unearth a sample of zircon that appears to be a closed system. they find 0.686 micro gram of 206 Pb for 1.000 micro gram of 238U present. approximately 3.7973 × 10⁹ years old is the sample.
What is decay constant?The reciprocal of the time period during which the number of atoms in the radioactive element drops to almost A. 50% of its initial number is the decay constant.
According to the radioactive decay law, a nucleus's likelihood of decaying is a constant that is independent of time.
t1/2 of U₂₃₈ is 4.5 × 10⁹ years
moles of U₂₃₈ : (1 × 10⁻⁶ / 238) moles
moles of Pb₂₀₆ : (0.686 × 10⁻⁶ / 206) moles
Now, U₂₃₈ → Pb₂₀₆
As Pb₂₀₆ comes from U₂₃₈ hence,
moles of U₂₃₈ decayed = moles of Pb₂₀₆
= (0.686 × 10⁻⁶ / 206) moles
Therefore, initial moles of U₂₃₈:
N₀ = [(1 × 10⁻⁶ / 238) + (0.686 × 10⁻⁶ / 206)] moles
and N = (1 × 10⁻⁶ / 238) moles
Now, λ (decay constant) = 0.693 / (t1/2)
= 0.693 / ( 4.5 × 10⁹ years)
So,
t = 2.303 / λ × log (N₀ / N)
t = 2.303 / [0.693 / ( 4.5 × 10⁹ years)] × log [1 + (0.686/206)/(1/238)]
t = 14.95 × 10⁹ × 0.254
t = 3.7973 × 10⁹ years.
Thus, the sample is: 3.7973 × 10⁹ years old.
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The legs of the base of a right triangular
prism measure 9 in. and 12 in. The prism has
a height of 5 in. What is the surface area of
the prism?
Answer:
the surface area of the prism = 288 in²Step-by-step explanation:
Let S be the surface area of the prism
B be the area the base (right-angered triangle)
L be the lateral surface area
Formula :
S = 2×B + L
……………………
\(B=\frac{12\times 9}{2} = 54\)
\(\text{Length \ of \ the \ third \ side}=\sqrt{12^{2}+9^{2}} =15\)
L = 5×(9 + 12 + 15) = 180
S = 2×B + L
S = 2×54+180 = 288 in²
A plumber charges $75 for a house call plus $35 per hour to work on the problem. You paid $145. How many hours did the plumber work?
Answer:
2 hours
Step-by-step explanation:
2 times 35 = 70
70 + 75 = 145
Answer:
He worked 2 hours
Step-by-step explanation:
75 + 35*2 = 145
PLEASE HELP IF YOU KNOW AP STATS OR HAVE TAKEN THIS QUIZ!! THANK U
The data set for the average height of men at a ballgame compared to their shoe size is represented by the table.
Table with two columns titled men's shoe size (U. S. ) and height (inches). Data values 7 and 64, 10 and 69, 12 and 72, 8 and 67, 9. 5 and 69, 10 and 70, 11. 5 and 75, 12. 5 and 73, 13. 5 and 71, 10 and 68.
Part A: What is the equation of the least-squares regression line? (3 points)
Part B: Carlos wears a size 9 and is 71 inches tall. What is the residual for Carlos's data? Show your work. (4 points)
Part C: Interpret the meaning of the residual from part B. (3 points)
An equation for the line of best fit for a men's height, y, based on her shoe size, x is; y = 0.25x + 66.6
What is a line of best fit?A line of best fit can be defined as a statistical (analytical) tool that is used in conjunction with a scatter plot, in order to determine whether or not there's any association (correlation) between a data.
In this scenario, the men's shoe size would be plotted on the x-axis of the scatter plot while her height would be plotted on the y-axis.
By critically observing the scatter plot (see attachment) which models the data, we can reasonably deduce that an equation for the line of best fit is given by:
y = 0.25x + 66.6
Interpret the meaning of the residual from part B is given below.
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14-
MONEY Suppose you have saved $38. How much more do
you
need to
save to buy a small television that costs $65?
Answer: You need 27 more dollars.
Step-by-step explanation: This is because for this problem, you need to subtract 65 from 38 to get 27
Which of the following are solutions to the equation below?
Check all that apply.
(2x+3)² = 10
x= √2/2
A. x=
□ B. x-10-3
2
C. x= -√/10 +
5 + 2/1/2
☐ D. x =
-10-3
2
<= -√
2
☐ E. x = -
32
OF. x= √10 +
332
The solutions for the equation (2x+3)² = 10 is:
x=√10-3/2x=-√10-3/2Given:
the equation is:
(2x+3)² = 10
we need to solve the following equation.
⇒ (2x+3)² = 10
taking square roots on both sides.
⇒ √(2x+3)² = √10
⇒ 2x+3=±√10
Now solving:
2x+3=√10 and 2x+3=-√10
2x=√10-3 and 2x=-√10-3
x=√10-3/2 and x=-√10-3/2
Hence we get the solutions of the given equation.
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What is equidistant from the angles of a triangle?
The circumcenter of a triangle is the point in the plane equidistant from the three vertices of the triangle.
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.
Not every polygon has a circumscribed circle. A polygon that does have one is called a cyclic polygon, or sometimes a concyclic polygon because its vertices are concyclic. All triangles, all regular simple polygons, all rectangles, all isosceles trapezoids, and all right kites are cyclic.
A related notion is the one of a minimum bounding circle, which is the smallest circle that completely contains the polygon within it, if the circle's center is within the polygon. Every polygon has a unique minimum bounding circle, which may be constructed by a linear time algorithm.
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the endpoint is the ___ of the angle
Hey there!
ANSWER: vertex
EXPLANATION:Fill in the blank:
The endpoint is the vertex of the angle.
This is your answer because an angle is formed by two rays which are the sides of an angle and they have an endpoint called the vertex.
Hope this helps!
\(-TestedHyperr\)
Answer:
Vertex
Step-by-step explanation:
An angle is made the endpoints of two rays meet together, forming the vertex of the angle.
Can someone help me on this math question its confusing ill give brainly when right!!!
Which complex number is equivalent to this expression? 7 + (9 + 27i) - 2(25 - 11i) a. 66 - 49i b. -34 + 49i c. -34 + 5i d. 66 + 5i
Answer: -34+49i
Step-by-step explanation:
What is the coordinate of the system of equations y=2x+3 and -y+7=-2
The solution to the system of equations is x = 1 and y = 5. The coordinate of the solution is (1, 5).
The system of equations consists of y = 2x + 3 and -y + 7 = -2. To find the coordinate of the solution, we need to solve the equations simultaneously.
To solve the system of equations, we can start by solving the second equation for y:
-y + 7 = -2
Adding y and subtracting 7 from both sides, we get:
y = 7 - 2
Simplifying, we find:
y = 5
Now that we know the value of y, we can substitute it into the first equation:
y = 2x + 3
5 = 2x + 3
Subtracting 3 from both sides, we have:
2 = 2x
Dividing both sides by 2, we find:
x = 1
Therefore, the solution to the system of equations is x = 1 and y = 5. The coordinate of the solution is (1, 5).
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among all students, what proportion earn an a and don't attend class regularly? aandnotr - numeric answer type your answer here round to four decimal places.
The corresponding probabilities are: A. P(R) = 0.72 B. P(R') = 0.28 C. P(A ∩ R) = P(R) * P(A | R) = 0.72 * 0.51 = 0.367 D. P(A | R) = 0.51 E. P(A ∩ R') = P(R') * P(A | R') = 0.28 * 0.10 = 0.028 F. P(A' ∩ R) = P(R) * P(A' | R) = 0.72 * 0.49 = 0.352 G. P(A' ∩ R') = P(R') * P(A' | R') = 0.28 * 0.90 = 0.252
(a) The tree diagram with the corresponding probabilities is:
A (0.51) A' (0.49) A (0.10) A' (0.90)
(b) The proportion of students who earn an A and don't attend class regularly is:
P(A ∩ R') = 0.028
(c) The chance that a randomly chosen student will earn an A in the class is:
P(A) = P(A ∩ R) + P(A ∩ R')
= 0.367 + 0.028
= 0.395
(d) Given that a student earned an A, the chance they attend class regularly is:
P(R | A) = P(A ∩ R) / P(A)
= 0.367 / 0.395
≈ 0.9291 (rounded to four decimal places)
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Complete question:
A professor has noticed that students hat attend class regularly, mss no more than two classes per term, generally get better grades. For he class, the overall percent o students who attend regularly s 72% or those who come to class on a regular basis, 51% receive A's. Of those who don't attend regularly, only 10% get A's. (b)Among all students what proportion earn an A and don't attend class regularly?
PQRS is a rhombus with PQ= 12 cm
Find with reasons:
1.1 a
1.2 b
1.3 c
1.4 the whole of Q
1.5 the length of SR
The Screaming Salamanders, a new rock band, released their new music video early for subscribers of their fan page. When the video was released to the public, it already had 2,642 views. One day later, the number of views increased to 3,963, and the band expects that the number of views will continue to grow each day. Write an exponential equation in the form y=a(b)x that can model the total number of views, y, x days after the music video was released to the public. Use whole numbers, decimals, or simplified fractions for the values of a and b.
The exponential equation is y = 2,642(2.5)^x. x represents the number of days.
What is a function?
A function in mathematics from a set X to a set Y assigns exactly one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively. Initially, functions represented the idealized relationship between two varying quantities.
Given that a video was released to the public, it already had 2,642 views.
One day later, the number of views increased to 3,963.
The number of viewers after one day is ( 3,963 + 2,642 ) = 6,605
Assume that the exponential function y = a(b)^x represents the number of viewers. x represents the number of days.
Putting x = 0 and y = 2,642 in y = a(b)^x:
2,642 = a(b)⁰
a = 2,642
Putting x = 1 and y = 6,605 in y = a(b)^x:
6,605 = a(b)¹
Putting a = 2,642:
6,605 = 2,642(b)¹
b = 6,605/2,642
b = 2.5
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8x + 5y=-22
-3x - 5y = 2
Answer:
(-4, 2).
Step-by-step explanation:
8x + 5y=-22
-3x - 5y = 2 Adding the 2 equations:
5x = -20
x = -4.
Substitute x = -4 in the first equation:
8(-4) + 5y = -22
5y = -22 + 32
5y = 10
y = 2.
Answer:
\(x=-4,\:\\y=2\)
Step-by-step explanation:
\(\begin{bmatrix}8x+5y=-22\\ -3x-5y=2\end{bmatrix}\\\mathrm{Multiply\:}8x+5y=-22\mathrm{\:by\:}3\:\mathrm{:}\:\quad \:24x+15y=-66\\\mathrm{Multiply\:}-3x-5y=2\mathrm{\:by\:}8\:\mathrm{:}\:\quad \:-24x-40y=16\\\\\begin{bmatrix}24x+15y=-66\\ -24x-40y=16\end{bmatrix}\\\\-24x-40y=16\\+\\\underline{24x+15y=-66}\\-25y=-50\\\begin{bmatrix}24x+15y=-66\\ -25y=-50\end{bmatrix}\\-25y=-50\\\mathrm{Divide\:both\:sides\:by\:}-25\\\frac{-25y}{-25}=\frac{-50}{-25}\\y=2\\\)
\(\mathrm{For\:}24x+15y=-66\mathrm{\:plug\:in\:}y=2\\24x+15\times\:2=-66\\24x+30=-66\\24x+30-30=-66-30\\24x=-96\\\frac{24x}{24}=\frac{-96}{24}\\x=-4\\\\\\x=-4,\:y=2\)
Which entence i correct?
A. -3 > 2
B. -3 < -6
C. -3 > - 8
D. -3 > -2
The correct sentence is C, "-3 > -8."
Here's how you can determine which sentence is correct:
In sentence A, -3 is not greater than 2, so sentence A is incorrect.
In sentence B, -3 is not less than -6, so sentence B is incorrect.
In sentence C, -3 is indeed greater than -8, so sentence C is correct.
In sentence D, -3 is not greater than -2, so sentence D is incorrect.
Remember that when comparing two negative numbers, the one with the smaller absolute value is the larger negative number. For example, -8 is a larger negative number than -3 because -8 is closer to 0 (which is the smallest possible number). Similarly, -2 is a larger negative number than -3 because -2 is closer to 0.
Hence, The correct sentence is C, "-3 > -8."
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A car is traveling at a steady speed. It travels 2 1/3 miles in 3 1/2 minutes. How far will it travel in 24 minutes? How far will it travel in 1 hour?
Answer:
a) distance traveled is 16 miles.
b) distance traveled is 40 miles.
Step-by-step explanation:
Speed is a scalar quantity which describe the rate of distance moved with time.
i.e speed = \(\frac{distance}{time}\)
Given that: distance = 2 1/3 miles = \(\frac{7}{3}\) miles, time = 3 1/2 minutes = \(\frac{7}{2}\) minutes.
Then;
speed = \(\frac{7}{3}\) ÷ \(\frac{7}{2}\)
= \(\frac{7}{3}\) x \(\frac{2}{7}\)
= \(\frac{2}{3}\)
The car's steady speed is 0.67 miles per minute.
a) when the time is 24 minutes, the distance covered can be determine by:
distance = speed x time
= \(\frac{2}{3}\) x 24
= 16
distance traveled is 16 miles.
b) When the time is 1 hour (60 minutes), the distance traveled can be determined by:
distance = speed x time
= \(\frac{2}{3}\) x 60
= 40
distance traveled is 40 miles.
Type the correct answer in the box. Use numerals instead of words. What value of x makes this equation true? -2x + 3 = -15
What does x =
Answer:x=9
Step-by-step explanation:
-2x+3=-15
Subtract 3 on both sides:
-2x+3-3=-15-3
-2x=-18
Divide -2 on both sides:
-2x/-2=-18/-2
x=9
If the expression (- 2x + 3) is equivalent to (- 15), then [x] is equivalent to 9.
What is a mathematical equation and expression?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Given is the equation as follows -
- 2x + 3 = - 15
The given equation is -
- 2x + 3 = - 15
Solving, we get -
- 2x = - 15 - 3
- 2x = - 18
2x = 18
x = 9
Therefore, if the expression (- 2x + 3) is equivalent to (- 15), then [x] is equivalent to 9.
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Which is an equivalent way to express 3x?
(1+x)(x2-5x-6)=
As a polynomial standard form ?
Answer:
\((x+1)(-3x-6)\)
Step-by-step explanation:
Polynomial Form Steps:
\((1+x)(x*2-5x-6)\\=(x+1)(-3x-6)\)
Jasmine buys a turkey every year . The first time she bought a turkey, in year 0, it cost $15.50. She notices the price is getting more expensive, at a rate of 2%
The price of the turkey based on the percentage given is $15.81.
How to illustrate the information?It was stated that the cost is $15.50 but that there was a 2% increment in price.
Therefore, the new price will be:
= $15.50 + (2% × $15.50)
= $15.50 + $0.31
= $15.81
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the tiny country of fremont has a population of 100,000 people. in 2009, there were 2,000 births, 500 deaths, 200 emigrants, and 100 immigrants. what is the population growth rate (r) for 2009?
The population growth rate (r) for 2009 in the tiny country of fremont is found as 1.4.
Describe the term population growth rate (r)?The population growth rate (r) shows how fast a population ages over time. A population is growing if the growth rate is positive. A negative growth rate signals a declining trend. A birth rate (b) and mortality rate are the two primary elements that influence population increase (d). People leaving the population to move to another territory or immigrating from a different region may also have a consequence on population increase (emigration, e).All these elements are taken into account when formulating the population growth formula.
r = [(b + i) - (d + e)]/1000
r = population growth rateb = birth rate; 2,000i = immigration rate; 100d = death rate; 500e = emigration rate; 200Put the values in the formula.
r = [(2,000 + 100) - (500 + 200)]/1000
r = 2100 - 700/ 1000
r = 1.4
Thus, the population growth rate (r) for 2009 in the tiny country of fremont is found as 1.4.
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Pleaseeeeee helppp me with thisss
Answer:
19.4
Step-by-step explanation:
7/34 = 4/x, 7x = 136, x = 19.4