The length would initially decrease to AB - BC before increasing to a maximum of AB + BC.
What would occur if point C moved in the other direction of the circle, toward point A.We can see from the diagram that two triangles are generated when AB = 3 cm and BC = 1.5 cm.
This would occur if, at point AC, C were to be rotating counterclockwise around A.
As AC moves closer to A, AC will initially decline to AB - BC. It would then grow. The length would be AB + BC at its greatest.
Read more on the length of an arc here:brainly.com/question/8020286
#SPJ1
If f left parenthesis x right parenthesis equals x minus 2 and g left parenthesis x right parenthesis equals 2 x minus 6, then g left parenthesis 4 right parenthesis divided by f left parenthesis 3 right parenthesis = __________.
a.)
2
b.)
1
c.)
3
d.)
0
The value g left parenthesis 4 right parenthesis divided by f left parenthesis 3 right parenthesis is 2.
What is parenthesis?
Parenthesis, also known as round brackets, are a type of punctuation used in writing to enclose additional information within a sentence that is not essential to the meaning of the sentence, but can provide clarification, emphasis, or further explanation. They are usually shown as two curved lines facing each other, like this: ().
For example, consider the sentence: "The concert, which was held at the arena last night, was sold out (as expected)." The words "as expected" are enclosed in parentheses, indicating that they are not necessary to the main meaning of the sentence, but provide additional information that may be of interest to the reader.
Parentheses can also be used to enclose mathematical equations, citations, or references in writing.
In this problem, we first need to substitute the given values of x in the functions f(x) and g(x).
f(x) = x - 2
f(3) = 3 - 2 = 1
g(x) = 2x - 6
g(4) = 2(4) - 6 = 2
So, [tex] \frac{g(4)}{f(3)} = \frac{2}{1} = 2[/tex]
Therefore,the value of g(4)/f(3) is 2.
Learn more about parenthesis here,
https://brainly.com/question/29121519
Find the x and y intercept
Find the vertical and horizontal asymptotes
s(x)=6/ x^2 - 5x - 6
Answer:
To find the x and y intercepts, we set x and y to zero respectively:
x-intercept: setting y = 0 gives us 6/(x^2 - 5x - 6) = 0, which has no real solutions.
y-intercept: setting x = 0 gives us s(0) = 6/(-6) = -1.
To find the vertical asymptotes, we set the denominator equal to zero and solve for x:
x^2 - 5x - 6 = 0
(x - 6)(x + 1) = 0
This gives us two vertical asymptotes at x = 6 and x = -1.
To find the horizontal asymptote, we need to look at the behavior of the function as x approaches infinity and negative infinity. As x becomes very large in magnitude, the terms involving x^2 become much larger than the terms involving x or the constant term, and so we can ignore those terms. This gives us:
s(x) ≈ 6/x^2 as x → ±∞
Therefore, the horizontal asymptote is y = 0.
In summary:
x-intercept: none
y-intercept: (0, -1)
vertical asymptotes: x = 6 and x = -1
horizontal asymptote: y = 0
If you have anymore questions, feel free to comment and I will answer them 8-5 I am on.
Step-by-step explanation:
Two spinners-One 5 and one 6. What is the probability that you get the same numbers as a previous spin?
Answer: Since the spinners have 5 and 6 numbers respectively, the total number of outcomes is 5 x 6 = 30.
If we get the same number as a previous spin, it means that the first spin is irrelevant, and we only care about the second spin. Therefore, the probability of getting the same number as a previous spin is the same as the probability of getting any specific number on the second spin, which is 1 out of 6.
Therefore, the probability of getting the same number as a previous spin is 1/6, or approximately 0.17 to two decimal places.
Step-by-step explanation:
Without using a calculator, compute the sine and cosine of
by using the reference angle. What is the reference angle?
degrees.
The reference angle is given as 45 degrees
the angle is in the 4th quadrant
sin 315 = - sqrt(2) / 2
cos 315 = sqrt(2) / 2
How to solve for the reference angleWe have θ = 315
θ is seen to lie between 270 degrees and 360 degrees in the 4th quadrant
In the fourth quadrant the reference angle has been solved by:
360 - θ
360 - 315
= 45 degrees
The reference angle is 45 degrees
sin 315 = sin( 360 - 45)
= [tex]-\frac{\sqrt{2} }{2}[/tex]
= - sqrt(2) / 2
cos 315 = cos (360 - 45)
= [tex]\frac{\sqrt{2} }{2}[/tex]
= sqrt(2) / 2
Read more on reference angle here:https://brainly.com/question/16884420
#SPJ1
a cola company sells the drinks in cans and bottles of three sizes. Study the pictograph below and answer the questions that follow
If these are your questions:
Dally cola sales in Bholapur 300 ml Shop A 500 ml Shop B Ilitre (a) In which type of packing does the cola sell the most? (b) Which shop sells more cola? (c) What is the total amount of cola sold in Bholapur per day?
So here are the answers:
In packing 300 ml, it would be sold at a larger volume.
given: there are two shops - shop A, and shop B selling 300 ml and 500 ml bottles.
to find:
(a) In which type of packing does the cola sell the most?
(b) Which shop sells more cola?
(c) What is the total amount of cola sold in Bholapur per day?
solution: As shop A sells the same product at a low cost because of low quantity, whereas shop B sells the product in 500 ml bottles. So, most chances are people end up buying the cheaper product which is the 300 ml product.
Similar, logic as the number of sales of 300 ml bottles would be much larger than that of 500 ml bottle backing. So, Shop A (300 ml bottle packing) sells more of the goods.
(c ) for option c inappropriate information is there, so can not be calculated. But, according to our findings, Shop A sells more goods.
In packing 300 ml, it would be sold at a larger volume.
#SPJ1
Dylan has a pitcher with 1.65 L of orange juice. He pours out 0.2 L
of the juice. Then he adds some sparkling water to the pitcher to
make orangeade. He ends up with 1.9 L of orangeade. Solve the
equation 1.65 -0.2 + x = 1.9 to find the amount of sparkling
water, x, Dylan adds to the pitcher. Show your work.
Answer:
Step-by-step explanation:
fork knife
For the truncated cuboid of height 3 m, top 5 m, base 8 m and side length of 1.5 m. Find the volume
Therefore, the volume of the truncated cuboid is approximately 68 + 4*√(30) cubic meters.
What is volume?Volume is a measure of the amount of space occupied by a three-dimensional object. It is the amount of three-dimensional space enclosed by the boundaries of an object. Volume is typically measured in cubic units, such as cubic meters (m³) or cubic centimeters (cm³).
Here,
The truncated cuboid is a solid figure that is obtained by cutting off the top of a rectangular prism (cuboid) with a plane that is parallel to the base. The formula for the volume of a truncated cuboid is:
V = h/3 * (A + √(A*B) + B)
where V is the volume, h is the height of the truncated portion, A is the area of the top face, and B is the area of the base face.
In this case, the height of the truncated portion is 3 m, the top face has an area of 5 m x 8 m = 40 m², and the base face has an area of 8 m x 1.5 m = 12 m². Therefore:
A + B = 40 + 12 = 52 m²
√(AB) = √(4012) = √(480) = 4*√(30)
Substituting these values into the formula, we get:
V = 3/3 * (52 + 4√(30) + 12)
V = 68 + 4√(30)
To know more about volume,
https://brainly.com/question/28338582
#SPJ1
Find the probability that a 42 person shift will put together between 193.2 and 201.6 computers per hour.
The probability that a 42 person shift will put together between 193.2 and 201.6 computers per hour is given as follows:
0.0006 = 0.06%.
How to obtain probabilities using the normal distribution?The z-score of a measure X of a normally distributed variable that has mean represented by [tex]\mu[/tex] and standard deviation represented by [tex]\sigma[/tex] is obtained by the equation presented as follows:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score represents how many standard deviations the measure X is above or below the mean of the distribution of the data-set, depending if the obtained z-score is positive(above the mean) or negative(below the mean).The z-score table is used to obtain the p-value of the z-score, and it represents the percentile of the measure X in the distribution.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation given by the equation presented as follows: [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].The parameters for this problem are given as follows:
[tex]\mu = 4.2, \sigma = 0.8, n = 42, s = \frac{0.8}{\sqrt{42}} = 0.1234[/tex]
The probability that a 42 person shift will put together between 193.2 and 201.6 computers per hour is equivalent to the probability of a sample mean between 193.2/42 = 4.6 and 201.6/42 = 4.8.
The probability is the p-value of Z when X = 4.8 subtracted by the p-value of Z when X = 4.6, hence:
Z = (4.8 - 4.2)/0.1234
Z = 4.86
Z = 4.86 has a p-value of 1.
Z = (4.6 - 4.2)/0.1234
Z = 3.24
Z = 3.24 has a p-value of 0.9994.
Hence:
1 - 0.9994 = 0.0006 = 0.06%.
Missing InformationThe missing section is given by the image presented at the end of the answer.
More can be learned about the normal distribution at https://brainly.com/question/25800303
#SPJ1
What is the surface area of the square pyramid?
______________________________________
(reporting wrong/spam answers)
(giving brainliest to the correct answer)
______________________________________
Answer:
105 in
Step-by-step explanation:
The area of the square pyramid = 4x( the area of the triangle) + the area of the squareArea of the triangle: the rule of multiplying the height divided by two4×(8×5) =80
2
5×5=25
25+80=105
PLEASE HELPPPPP
THANKS
NEED HELP 35 POINTS!
Find x.
5 in.
8 in.
x
15 in.
Answer:
The answer is 24 in
Step-by-step explanation:
This solution is for "SIMILAR TRIANGLES";
Let us letter the shape starting from left to right A-B-C-D-E
Angle A is similar to Angle E, so is Angle B similar to Angle D, that is, "Alternate interior angles" while Angle ACB is similar to Angle DCE, that is, "Vertical Angles";
Line AB = 5 in is parallel to line DE = 15 in
So, K = DE / AB = 15 / 5 = 3
Line CD = K * CB = 3 * 8 = 24 in
Determine whether y^2=−2x−2 is a function
Answer:
It is not a function.
One can also find the interest rate of the uneven cash flow stream with a financial calculator and solving for the internal rate of return (IRR) using the IRR key. Quantitative Problem: You own a security with the cash flows shown below. 0 1 2 3 4 0 690 365 220 330 If you require an annual return of 12%, what is the present value of this cash flow stream? Do not round intermediate calculations. Round your answer to the nearest cent. $
Answer:
To solve this problem, we need to find the present value of the cash flow stream using a discount rate of 12%. We can use the present value formula:
PV = CF1/(1+r)^1 + CF2/(1+r)^2 + CF3/(1+r)^3 + CF4/(1+r)^4
where PV is the present value, CF1, CF2, CF3, and CF4 are the cash flows at time 1, 2, 3, and 4 respectively, and r is the discount rate.
Substituting the values given in the problem, we get:
PV = 690/(1+0.12)^1 + 365/(1+0.12)^2 + 220/(1+0.12)^3 + 330/(1+0.12)^4
PV = 690/1.12 + 365/1.2544 + 220/1.4049 + 330/1.5735
PV = 616.07 + 290.76 + 156.51 + 209.38
PV = 1272.72
Therefore, the present value of the cash flow stream is $1,272.72.
Step-by-step explanation:
What is the surface area?
9 in
9 in
9 in
square inches
Answer:
The surface area of an object is the total area of all its faces. For a cube with sides of length 9 inches, the surface area can be calculated as follows:
The cube has six faces, all of which are identical squares.
The area of one square face is 9 inches x 9 inches = 81 square inches.
Therefore, the total surface area of the cube is 6 x 81 square inches = 486 square inches.
So the surface area of a cube with sides of 9 inches is 486 square inches.
If this figure was rotated around the x-axis, what would the height be? The radius?
The height and the radius of the figure will remain unchanged as the figure is being just rotated around the axis and not transformed.
What is a transformation?A function transformation "moves," "resizes," or "reflects" the parent function's graph, depending on the case. Function transformations can be broadly divided into three categories:
Translation
Dilation
Reflection
Dilation is the only one of these changes that modifies the original shape's size; the other two just change the shape's placement.
Here in the question,
The figure is being rotated not dilated so the dimensions of the new figure will remain the same.
To know more about transformations, visit:
https://brainly.com/question/11709244
#SPJ1
determine the solution for the system of equation -2y=-6x-18 3x-4y=27 ( , )
The solution for the system of equation -2y=-6x-18 3x-4y=27 is (x, y) = (-3, 9).
What is system?A system is an organized set of components that work together to achieve an overall goal. It could be a physical system, such as an automobile, or an abstract system, such as an economic system.
The first step is to isolate one of the variables in one of the equations. To do this, we can multiply both sides of the first equation by -3. This will give us: 6y = 18x + 54.
Next, we need to subtract this equation from the second equation. Doing so gives us: 3x - 6y = -27.
Now we can isolate the variable y. To do this, we can divide both sides of the equation by -6. This will give us: y = -3x - 9.
We have now isolated the variable y in both equations, so we can substitute y = -3x - 9 in the first equation. Doing so gives us: -2(-3x - 9) = -6x - 18.
We can then simplify this equation to get: 6x + 18 = -6x - 18.
Finally, we can solve this equation for x. Doing so gives us x = -3. We can then substitute this value into either equation to find the value of y: y = -3(-3) - 9 = 9.
Therefore, the solution for the system of equation -2y=-6x-18 3x-4y=27 is (x, y) = (-3, 9).
To learn more about system
https://brainly.com/question/28405823
#SPJ1
The gas mileages (in miles per gallon) for cars are shown in the frequency distribution. Approximate the mean of the frequency distribution.
Gas Mileage
(in miles per gallon)
Frequency
Question content area bottom
Part 1
The approximate mean of the frequency distribution is
enter your response here.
The approximate mean of the frequency distribution is of 35.2 miles gallon.
How to calculate the mean of a data-set?The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations, which is also called the cardinality of the data-set.
As we are given a frequency distribution, we take the midpoint of each interval, and thus the sum of the observations is given as follows:
10 x 30 + 12 x 35 + 3 x 40 + 4 x 45 = 1020.
There are 29 observations, hence the mean of these observations is given as follows:
1020/29 = 35.2 miles gallon.
Missing InformationThe frequency distribution is given as follows:
28-32 10
33-37 12
38-42 3
43-47 4
More can be learned about the mean of a data-set at https://brainly.com/question/1136789
#SPJ1
Write an equation(any form) for the quadratic graphed below:
Answer:
[tex]y = -2(x + 3)^{2} + 3[/tex]
Step-by-step explanation:
The equation for a quadratic graph can be expressed in the Vertex form:
[tex]y = a(x-h)^{2} + k[/tex]
Where:
[tex](h, k)[/tex] = Vertex of the parabola
= Extreme point of the parabola
Step I:
By reading from the graph:
[tex](h, k)[/tex] = [tex](-3, 3)[/tex]
Substitute the values of h and k in the above equation:
[tex]y = a[x- (-3)]^{2} + (3)[/tex]
[tex]y = a(x + 3)^{2} + 3[/tex]
Step II:
Determine a:
Based on the shape of the graph (which is an upside down U), the value of a will be negative:
Count one unit to the right from the vertex and see how far do you go down to touch the graph:
From the graph:
It seems you need to move 2 units down
∴a = [tex]-2[/tex]
Step III:
Substitute this value of a in the above equation:
[tex]y = -2(x + 3)^{2} + 3[/tex]
Beverly has a bag of marbles that weighs 30 grams. She knows that each marble weighs 1.5 grams and the bag weighs 1.5 grams. Which equation could she use to determine how many marbles are in the bag? Select all that apply. (1.5)x + 1.5 = 30 30 – x = 2(1.5) (1.5)(30) = 1.5x 1.5 + x = 30 1.5x = 30 – 1.5
(1.5)x + 1.5 = 30 and 1.5x = 28.5 are the correct equations that Beverly could use to determine how many marbles are in the bag.
How to determine the equations of the marblesLet x be the number of marbles in the bag.
Each marble weighs 1.5 grams and the bag weighs 1.5 grams.
Therefore, the total weight of the marbles and the bag is 1.5x + 1.5 grams.
But we know that the total weight is 30 grams.
So, we can write the equation:
1.5x + 1.5 = 30
Simplifying this equation, we get:
1.5x = 28.5
Therefore, the number of marbles in the bag is x = 19.
Read more about equations at
https://brainly.com/question/2972832
#SPJ1
Geometry proof that opposite sides of a parallelogram are congruent.
The following is provided: parallelogram ABCD
The following is what we must demonstrate: segments AB, CD, and BC, and segment AD.
According to the definition of a parallelogram, section BC is parallel to segment AD since ABCD is a parallelogram.
The definition of a parallelogram is that segment AB is parallel to segment DC.
Segments BC and AD are transverse to line AC. As illustrated below, this transversal generates the alternate interior angles 1 and 4, which are equivalent.
In the same way, segment AB and segment DC are transversals for line AC. Alternate interior angles 2 and 3 are produced by this transversal, and they are equivalent.
Segment AC is also divided into segments by its reflexive property.
∠1 ≅ ∠ 4
∠2 ≅ ∠ 3
AC segment AC segment
Triangle ABC triangle ADC, by ASA
In light of the fact that similar parts of congruent triangles are also congruent, segment AB segment CD and segment BC AD.
To learn more about parallelogram from given link
https://brainly.com/question/970600
#SPJ1
DIVIDE 3000 RUPEES AMONG TEENA AND BEENA SO THE THEY GET 40% AND 60% RESPECTIVELY
Answer:
To divide 3000 rupees between Teena and Beena so that they get 40% and 60% respectively, we need to follow these steps:
Step 1: Find the total percentage that Teena and Beena will receive together:
40% + 60% = 100%
This means that Teena and Beena will receive 100% of the total amount, which is 3000 rupees.
Step 2: Calculate the amount that Beena will receive:
60% of 3000 rupees = 0.6 x 3000 = 1800 rupees
Step 3: Calculate the amount that Teena will receive:
40% of 3000 rupees = 0.4 x 3000 = 1200 rupees
Therefore, Beena will receive 1800 rupees, while Teena will receive 1200 rupees
10. In the diagram below, ABC~ DEC
If AC = 12, DC = 7, DE = 5, and the perimeter of AABC is 30, what is the perimeter of ADEC?
A. 12.5
B. 14.0
C. 14.8
D. 17.5
Answer: B 14.0
Step-by-step explanation:
Does A (1,2) and A prime (5,12) represent a dilation? Why or why not?
Hence, in response to the provided question, we can say that As a result, equation A(1,2) and A'(5,12) are not dilations.
What is equation?An algebraic equation is a method of connecting two quotes by using the equals symbol (=) to express equality. In algebra, an explanation is a definitive expression that verifies the equivalency of two formula. For example, the identical character divides the numbers 3x + 5 and 14. A linear equation might be used to recognize the connection that existing between the texts written on separate sides of a letter. The product and application both frequently the same. 2x - 4 equals 2, for example.
To evaluate if the points A(1,2) and A'(5,12) reflect a dilation, we must first determine the dilation's scale factor.
Let's use the given points to compute the scale factor:
(length of A' A) / scale factor (length of A)
A's length A [tex]=\ sqrt[(5-1)2 + (12-2)2] = \sqrt[16^2 + 10^2] =\ sqrt(296) (296)[/tex]
A's length is one.
[tex](\sqrt(296)) / 1\\\sqrt(x) = scale factor (296)[/tex]
As a result, the scaling factor is not an integer. That is, the transformation from point A to point A' is not a dilation with a whole number scale factor.
As a result, A(1,2) and A'(5,12) are not dilations.
To know more about equation visit:
https://brainly.com/question/649785
#SPJ1
QUESTION 5 1 POINT
If cost is represented by C(x) = 3.7x + 9,000 and revenues are represented by R(x) = 4.6x, which equation could be
used to find the break-even point?
Answer:
The function that represents the company's profits is [tex]P(x)=0.9x-9,000[/tex]
Step-by-step explanation:
We are given
The costs of a company are represented by the function
[tex]C(x)=3.7x+9,000[/tex]
Its revenues are represented by the function
[tex]R(x) = 4.6x[/tex]
we know that
[tex]\text{Profit = Revenue - Cost}[/tex]
[tex]P(x)=R(x)-C(x)[/tex]
now, we can plug
[tex]P(x)=4.6x-(3.7x+9,000)[/tex]
now, we can simplify it
[tex]P(x)=0.9x-9,000[/tex]
So,
the function that represents the company's profits is [tex]P(x)=0.9x-9,000[/tex]
The equation used to find the break-even point is 0.9x - 9000.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
We have,
The costs of a company are represented by the function
C(x) = 3.7x + 9,000
and, revenues function
R(x) = 4.6x
For Break even point
Profit = Revenue - cost
P = 3.7x + 9000 - 4.6x
P = 0.9x - 9000
Learn more about Equation here:
https://brainly.com/question/29657983
#SPJ2
Please help!! Correct answer gets brainliest!!
Answer:
c
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
First, the shape is wrong
2(8×3)+2(8×4)+2(3×4)=
2(24)+2(32)+2(12)=
48+64+24=136
Simplify (3x3y2 − 5xy4 − 2xy) + (2x3y2 + 5xy4 + 3xy). 5x3y2 − 2xy4 + xy 5x3y2 − 2xy4 − 5xy 5x3y2 + xy 5x3y2 − xy
After Simplifying, we get: [tex]5x^3y^2 + xy - 2xy^4[/tex]
What is pοlynοmials ?Pοlynοmials are algebraic expressiοns made up οf cοefficients and variables. Occasiοnally, variables are referred tο as indeterminates.
Fοr pοlynοmial expressiοns, additiοn, subtractiοn, multiplicatiοn, and pοsitive integer expοnents are all pοssible; hοwever, divisiοn by variable is nοt. x²+x-12 is an illustratiοn οf a single-variable pοlynοmial. Three terms are invοlved in this example: x², x, and -12.
The Greek wοrds "pοlynοmial" and "nοminal," which tοgether mean "many terms," are the sοurce οf the English wοrd pοlynοmial. There is nο limit tο the number οf terms that a pοlynοmial can have.
When we add the twο pοlynοmials term by term, we get:
[tex](3x^3y^2 - 5xy^4 - 2xy) + (2x^3y^2 + 5xy^4 + 3xy) = 3x^3y^2 + 2x^3y^2 - 5xy^4 + 5xy^4 - 2xy + 3xy[/tex]
Simplifying, we get: [tex]5x^3y^2 + xy - 2xy^4[/tex]
Learn more about algebraic expressiοns
https://brainly.com/question/29273389
#SPJ1
Answer:
5x^3y^2+xy (C)
Step by Step:
(3x^3y^2 − 5xy^4 − 2xy) + (2x^3y^2 + 5xy^4 + 3xy) =
3x^3y^2 − 5xy^4 − 2xy + 2x^3y^2 + 5xy^4 + 3xy =
(3 + 2)x^3y^2 + (-5 + 5)xy^4 + (-2 + 3)xy =
5x^3y^2 + xy
hope this helps (btw it's C)
Thabo travelled 95 kilometres in 2 hours. If he keeps going at the same rate, how long will it take him to go the remaining 165 kilometres of her trip?
Answer: Velocity, v= distance/time
Given: distance=95km & time= 2 hours
Velocity= 95/2 = 47.5km/hour
Step-by-step explanation:
Now, Distance= 165 km and we got velocity= 47.5km/hour
= 47.5 =165/time
Time taken = 165/47.5= 3hours and 50 minutes.
Therefore, Time taken to remaining 165 km of her trip is 3hours and 50 minutes.
How do I solve the satellite question?
What is the perimeter of ABCD?
If you multiply a certain number by 5, and then subtract 3, the answer is 17. Find the number.
Answer:
The number is 4
Step-by-step explanation:
Let us make the unknown number xMake the question an equation{5x-3=17}Solve the equation(5x-3=17)Collect like terms (5x= 17+3)5x=20
Divide both sides by the coefficient of x5x/5=20/5
x=4
Step-by-step explanation:
so let the unknown be x
x+5-3=17
x+2=17
so then you carry +2 over to the left hand side which collecting of like terms
so we have
x=17-2
x=15
so therefore the unknown value x is 15
to check
we substitute 15 for x in the equation
let's go
so we have
15+5-3=17
now using this solve it .
I believe u can do it
or I just do it
so we hv the unknown to be x
x*5-3=17
5x-3=17
5x=17+3
5x=20
x=20/5
x=4
Cindy is evaluating the expression -5m - 31 for
-2p + r
m = 1, n.= -4, p = -3, and r = -2. Her work is
shown below.
=5m - 31 =
-5(1) - 3(-4)
-2p + r
=2(-3) + (-2)
= 끌=-끔=-4
a. What error did Cindy make in her computation?
b. What is the correct answer?
The correct answer for the expression is -5(1) - 3(-4) = 7 and -2p + r = 4.
What is substitution method?The algebraic approach to solving simultaneous linear equations is known as substitution technique. The value of one variable from one equation is substituted in the second equation in this procedure, as the name implies. By doing this, a pair of linear equations are combined into a single equation with a single variable, making it simpler to solve.
The given expression is: -5m - 3n for m = 1, n.= -4 and -2p + r for p = -3, and r = -2.
The correct steps are:
For, -5m - 3n substitute the value of m = 1 and n = -4:
-5(1) - 3(-4)
-5 + 12 = 7
For -2p + r:
-2(-3) + (-2)
6 - 2 = 4
Hence, the correct answer for the expression is -5(1) - 3(-4) = 7 and -2p + r = 4.
Learn more about substitution method here:
https://brainly.com/question/22340165
#SPJ1