Answer:
-3
Step-by-step explanation:
Consider the following system of equations:
y = −2x + 3
y = x − 5
Which description best describes the solution to the system of equations?
Lines y = −2x + 3 and y = 3x – 5 intersect the x-axis.
Line y = −2x + 3 intersects line y = x − 5.
Lines y = −2x + 3 and y = 3x − 5 intersect the y-axis.
Line y = −2x + 3 intersects the origin.
Hi there!
»»————- ★ ————-««
I believe your answer is:
"Line y = −2x + 3 intersects line y = x − 5."
»»————- ★ ————-««
Here’s why:
When the system of equations are graphed, they would intersect at a point. This means that there is a solution to the system. The solution is \((\frac{8}{3} ,-\frac{7}{3} )\).While the statement that the lines intersect the x-axis is true, the question asks the statement that describes the solution. The solution is the point of intersection between the two lines.⸻⸻⸻⸻
See the Graph Attached
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
When 3x2 - 8x is subtracted from 2x2 + 3x, the difference is
Answer:
x² - 11x
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Distributive PropertyTerms/CoefficientsStep-by-step explanation:
Step 1: Define
Identify.
3x² - 8x - (2x² + 3x)
Step 2: Simplify
[Distributive Property] Distribute negative: 3x² - 8x - (2x² + 3x) = 3x² - 8x - 2x² - 3xCombine like terms (x²): 3x² - 8x - (2x² + 3x) = x² - 8x - 3xCombine like terms (x): 3x² - 8x - (2x² + 3x) = x² - 11xHelp please.............
4(2(-2)+3(3)-2(4.2)
......
Hey can anyone pls answer this math problem!
The trigonometric measures in the given right triangle are as follows:
a) tan(30º) = x/20.
b) x = 11.54.
c) tan(60º) = 20/x.
Relations in a right triangleThe relations in a right triangle are presented as follows:
Sine = opposite leg/hypotenuse.Cosine = adjacent leg/hypotenuse.Tangent = Sine/Cosine = opposite leg/adjacent leg.For item a, the tangent of the angle of 30º is calculated as follows:
tan(30º) = opposite leg/adjacent leg = x/20.
The actual value of the tangent of 30º is of 0.577, hence the solution for x is calculated as follows:
tan(30º) = x/20
0.577 = x/20
x = 20 x 0.577
x = 11.54.
For the angle of 60º, the opposite and adjacent legs are exchanged relative to the angle of 30º, hence the tangent is calculated as follows:
tan(60º) = 20/x.
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The figure below is a net for a right rectangular prism.
11 m
13 m
11 m
7 m
11 m
11 m
What is the surface area of the right rectangular prism, in square meters?
The surface area of the right rectangular prism is given as follows:
358 m².
How to obtain the surface area?The surface area of a prism is obtained with the sum of the areas of each part of the prism.
The parts that compose the prism are given as follows:
Two rectangles of dimensions 7 ft and 12 ft.Two rectangles of dimensions 5 ft and 12 ft.Two rectangles of dimensions 5 ft and 7 ft.The area of a rectangle is given by the multiplication of each of the dimensions of the rectangle.
Hence the surface area of the prism is calculated as follows:
S = 2 x (7 x 12 + 5 x 12 + 5 x 7) = 358 m².
(multiplication by two due to the two rectangles with each of the dimensions).
Missing InformationThe prism is given by the image shown at the end of the answer.
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a + b·c = a + c·b is an example of the associative property.
Answer:
yes , This is an example of the associative property.
Step-by-step explanation:
Which of the following shows a 90° counterclockwise rotation of the blue figure
College level Trigonometry any help will do!!
The magnitude of the resultant force is approximately 9.07 lb.
We have,
To use the parallelogram rule to find the magnitude of the resultant force for the two forces, we first draw a diagram:
B (11 lb)
/|
/ |
/ |
/ |
/ |
/ |
/θ |
/ |
A (7 lb) |
\ |
\ |
\ |
\ |
\ |
\ |
\ |
\|
C
where A and B are the magnitudes of the given forces, and θ is the angle between them.
Using the parallelogram rule, we draw a parallelogram with sides AB and BC:
B (11 lb)
/|
/ |
/ |
/ |
/ |
/ |
/θ |
/ |
A (7 lb) D
\ |
\ |
\ |
\ |
\ |
\ |
\ |
\|
C
The diagonal BD represents the magnitude and direction of the resultant force.
To find its magnitude, we use the Law of Cosines:
BD^2 = AB^2 + BC^2 - 2(AB)(BC)cos(θ)
BD^2 = (7 lb)^2 + (11 lb)^2 - 2(7 lb)(11 lb)cos(133 degrees)
BD^2 = 49 + 121 - 2(77)cos(133 degrees)
BD^2 = 170 - 154cos(133 degrees)
BD ≈ 9.07 lb (rounded to two decimal places)
Therefore,
The magnitude of the resultant force is approximately 9.07 lb.
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Several batches of stew were made yesterday. Each batch required 1 and two-thirds pounds of meat. All together, 10 and StartFraction 5 over 6 EndFraction pounds of meat was used. Janice tried to find the number of batches of stew made. Her work is shown below.
10 and StartFraction 5 over 6 EndFraction divided by 1 and two-thirds = StartFraction 65 over 6 EndFraction divided by five halves = StartFraction 65 over 6 EndFraction times StartFraction 2 over 5 EndFraction = StartFraction 130 over 30 EndFraction = 4 and one-third
When she checked the answer by estimating, it did not make sense. What error did Janice make?
Janice converted a mixed number to the wrong improper fraction.
Janice added the numerators and denominators instead of multiplying.
Janice did not change the division problem to multiplication.
Janice did not convert the improper fraction to a mixed number correctly in the answer.
Mark this and return
The error that Janice made is that she did not convert the improper fraction StartFraction 130 over 30 EndFraction to a mixed number correctly in her final answer.
The error that Janice made can be identified by analyzing her calculations. Let's examine each step she took:
Step 1: 10 and StartFraction 5 over 6 EndFraction divided by 1 and two-thirds
In this step, Janice correctly converted the mixed number to an improper fraction, which becomes 10 and StartFraction 5 over 6 EndFraction = StartFraction 65 over 6 EndFraction.
Step 2: StartFraction 65 over 6 EndFraction divided by five halves
In this step, Janice attempted to divide the fractions. However, she made an error by adding the numerators and denominators instead of multiplying. This is incorrect. The correct operation for dividing fractions is to multiply the first fraction by the reciprocal of the second fraction. The reciprocal of five halves is two fifths.
Step 3: StartFraction 65 over 6 EndFraction times StartFraction 2 over 5 EndFraction
Here, Janice multiplied the fractions correctly. The product of these fractions is StartFraction 130 over 30 EndFraction.
Step 4: StartFraction 130 over 30 EndFraction = 4 and one-third
In this step, Janice attempted to convert the improper fraction to a mixed number. However, she made another error in her calculation. The fraction StartFraction 130 over 30 EndFraction is not equal to 4 and one-third. The correct conversion would yield 4 and two-sixths or 4 and one-third.
Therefore, the error that Janice made is that she did not convert the improper fraction StartFraction 130 over 30 EndFraction to a mixed number correctly in her final answer.
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area of rhombus whose diagonals are 5cm and 8 cm
Answer:
20 cm^2
Step-by-step explanation:
A = 1/2 * d1 * d2 = 1/2 * 8 * 5 = 1/2 * 40 = 20cm^2
please help
im confushion
Use the formula o = 7 to find the value of the missing variable 5 radians per sec, t= 9 sec = (round to the nearest thousandths)
Answer:
\(o = 9 \times \frac{5\pi}{9} \\ \)
\(o = 5\pi = 15.71\)
hhgggfgn help hellp
me
Answer:
First one
Step-by-step explanation:
Answer:
Hey! No need to fret ok so you are doing 7/6 the answer is 1.16 what do we know about this that is true.
Step-by-step explanation:
You are correct only the sum which is 1.16 is irrational because the product of the numbers is rational. Hope I help have a good day please put me for brainliest Thank You!
if y = 3 then evaluate 45 - y
Answer:
42
Step-by-step explanation:
If y equals 3, then substitute y for 3, getting 45 - 3.
45 - 3 is 42, so that's your answer.
Hope this helped!
.HELPPPPPPPPPPPPPPPPPP
Which name describe only those numbers highlighted on the number line.
Answer: negative numbers
Explanation: Notice that on the number line, 0 is in the middle, all numbers to the left of 0 are negative, and all numbers to the right of 0 are positive.
Since the numbers highlighted only include numbers
to the left of 0, negative numbers are shown here.
Cullumber Company, a machinery dealer, leased a machine to Dexter Corporation on January 1, 2020. The lease is for an 8-year period and requires equal annual payments of $ 25,300 at the beginning of each year. The first payment is received on January 1, 2020. Cullumber had purchased the machine during 2019 for $ 170,000. Collectibility of lease payments by Cullumber is probable. Cullumber set the annual rental to ensure a 8% rate of return. The machine has an economic life of 10 years with no residual value and reverts to Cullumber at the termination of the lease. Assume that Dexter Corporation does not know the rate implicit in the lease used by Cullumber, and Dexter’s incremental borrowing rate is 10%. In addition, assume that Dexter incurs initial direct costs of $ 18,000.
A. Compute the amount of the lease liability and right-of-use asset for Dexter.
B.Prepare all necessary journal entries for Dexter for 2020. (record lease, Record first payment, record interest expense, record amortization of right of use asset)
Present value of annual lease payment is $148,471
Right-of-use asset is $166,471
Given:
Time for lease = 8 year
Annual payment = $25,300 at the beginning of each year
Cost of machine = $170,000
Rate of return = 8% (Annual)
Expected life of machine = 10 year
Incremental borrowing rate = 10%
Dexter incurs initial direct costs = $18,000
Computation:
Using excel formula for Present value of annual lease;
Present value of annual lease payment = Annual payment[PVAD(r,n)
Present value of annual lease payment = 25,300[PVAD (10%, 8 years)]
Present value of annual lease payment = $148,471
Right-of-use asset = Present value of annual lease payment + Dexter incurs initial direct costs
Right-of-use asset = $148,471 + $18,000
Right-of-use asset = $166,471
Books of (Dexter)
Date Particular Debit Credit
1/1/17 Right-of-use assets 166,471
Cash 18,000
Lease liability 148,471
1/1/17 Lease liability 25,300
Cash 25,300
31/12/17 Interest (148,471-25,300)x0.1 12,317
Interest Receivable 12,317
12/31/17 Depreciation (166,471/8) 20,809
Accumulated depreciation 20,809
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Write an equation in standard form of the line shown.
Answer: y= -2x + 4
Hope this helps.
Question
Which of the following is equivalent to 12x + 8?
○ 4(3x + 2)
O4(3x + 8)
O4(3x + 2x)
O 20x
Answer:
the first one
Step-by-step explanation:
reason - 4 times 3 is 12 and 4 times 2 is 8 so 12x+8
A charity is raising money by selling two thousand raffle tickets for $2 each. There is one grand prize worth $500, three secondary prizes worth $200 each, and eight third level prizes worth $20 each. What is the expected value of a $2 ticket? Answer is negative $1.358 but how do you calculate that?
The expected value of a $2 ticket is $0.63
How to determine the expected value of a $2 ticketTo calculate the expected value of a $2 ticket, we need to multiply the probability of winning by the value of the prize, then sum those products:
The Probability of winning the grand prize = 1/2000
Product: (1/2000) x $500 = $0.25
The Probability of winning a secondary prize: 3/2000
Product: (3/2000) x $200 = $0.30
The Probability of winning a third level prize: 8/2000
Product: (8/2000) x $20 = $0.08
The sum of the products:
$0.25 + $0.30 + $0.08 = $0.63
So the expected value of a $2 ticket is $0.63, meaning that on average, a person can expect to win $0.63 for every $2 they spend on a ticket.
The charity is expected to make a profit, which is why the answer is negative.
That is -$2 + $0.63 = -$1.37
So the expected profit for the charity per ticket sold is -$1.37, which is approximately the same as the given answer of negative $1.358(rounding off)
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PLEASE HELP ME
The function f(x) = -2(4)^x+1 +140
represents the number of tokens a child has x hours after arriving at an arcade.
What is the practical domain and range of the function?
If necessary, round to the nearest hundredth.
The practical domain of the situation is ?
The practical range of the situation is ?
PLEASE SEE PHOTO FOR FUNCTION
The function f(x) = -2(4)ˣ⁺¹ +140 represents the number of tokens a child has x hours after arriving at an arcade. The practical domain and range of the function are x ≥ 0 and The practical range of the situation is [140, ∞).
The given function is f(x) = -2(4)ˣ⁺¹+ 140, which represents the number of tokens a child has x hours after arriving at an arcade.
To determine the practical domain and range of the function, we need to consider the constraints and limitations of the situation.
For the practical domain, we need to identify the valid values for x, which in this case represents the number of hours the child has been at the arcade. Since time cannot be negative in this context, the practical domain is x ≥ 0, meaning x is a non-negative number or zero.
Therefore, the practical domain of the situation is x ≥ 0.
For the practical range, we need to determine the possible values for the number of tokens the child can have. Looking at the given function, we can see that the term -2(4)ˣ⁺¹represents a decreasing exponential function as x increases. The constant term +140 is added to shift the graph upward.
Since the exponential term decreases as x increases, the function will have a maximum value at x = 0 and approach negative infinity as x approaches infinity. However, due to the presence of the +140 term, the actual range will be shifted upward by 140 units.
Therefore, the practical range of the situation will be all real numbers greater than or equal to 140. In interval notation, we can express it as [140, ∞).
To summarize:
- The practical domain of the situation is x ≥ 0.
- The practical range of the situation is [140, ∞).
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Triangle XYZ is rotated 90° counterclockwise about the origin to produce X'Y'Z'. What are the coordinates of X'Y'Z'?
Answer:
59
Step-by-step explanation:
6 plus 4 equals 8 plus 9
Determine whether each quadrilateral is a parallelogram. Justify your answers.
And
Explain why the quadrilateral with the given vertices is a parallelogram. Use the indicated theorem.
The given quadrilaterals, 1 and 2, are parallelograms because the pair of opposite sides are parallel and the other pairs are congruent.
3. According to Theorem 7.9, quadrilateral ABCD is a parallelogram.
4. According to Theorem 7.12, quadrilateral PQRS is a parallelogram.
What is the proof for the parallelograms?3. Quadrilateral ABCD with vertices A(0,0), B(7,1), C(5,6), D(-2,5), and Theorem 7.9:
Theorem 7.9 states that if the opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram.
Using the distance formula, we can calculate the lengths of the sides of quadrilateral ABCD:
AB = √((7 - 0)² + (1 - 0)²) = √50
BC = √((5 - 7)² + (6 - 1)²) = √29
CD = √((-2 - 5)² + (5 - 6)²) =√50
DA = √((0 - (-2))² + (0 - 5)²) = √29
We can see that AB = CD and BC = DA, indicating that the opposite sides are congruent.
Quadrilateral PQRS with vertices P(-2,0), Q(3,1), R(4,4), S(-1,3), and Theorem 7.12:
Theorem 7.12 states that if both pairs of opposite sides of a quadrilateral are parallel and congruent, then the quadrilateral is a parallelogram.
Using the slope formula, we can calculate the slopes of the sides of quadrilateral PQRS:
Slope of PQ = (1 - 0) / (3 - (-2)) = 1/5
Slope of RS = (4 - 3) / (4 - (-1)) = 1/5
Slope of QR = (4 - 1) / (4 - 3) = 3
Slope of SP = (3 - 0) / (-1 - (-2)) = 3
The lengths of opposite sides can be calculated using the distance formula:
PQ = √((3 - (-2))² + (1 - 0)²) = √(25 + 1) = √26
RS = √((4 - 4)² + (4 - 1)²) = √(9) = 3
QR = √((4 - 3)² + (4 - 1)²) = √(1 + 9) = √10
SP = √((-1 - (-2))² + (3 - 0)²) = √(1 + 9) = √10
We can see that PQ = RS and QR = SP, indicate that the opposite sides are parallel and congruent.
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Which inequality is represented by the graph?
HELP WILL NAME BRAINLIST
Answer:
y>= 2/3(x) - 2.5
Step-by-step explanation:
The sign should be "greater than or equal to" but my keyboard doesn't have that. Sorry.
The slope is "up two, over three" found by finding places where the line passes through the grid lines, and counting.
The y-intercept is -2.5. That tells you the "constant" to put in for "b" in the slope intercept form, y=mx+b
You bought the following items at 20% off. How much did you pay total?
Tent $70, jacket $60, gloves $25, snowboard $350, goggles $30
Answer:
$524.30
Step-by-step explanation:
70+60+25+350+30= 535
535*.02(20%)
10.7
535-10.7=
524.3
Answer:
$107
Step-by-step explanation:
First you have to add up the costs and you get a total of $535
Then you need to make 535 equivalent to 100 then divide by 20 to get 107
Hope that helps and have a great day!
Which is the graph of the function f/x )= x 2 2x 3?; Which graph represents the function f/x )= 4 x?; How do you find a function on a graph?; Which is one of the transformations applied to the graph of f/x )= x2 to change it into the graph?
The graph of the function f(x) = x² + 2x + 3 is a parabola with vertex (-1, 2).
You can use the vertical line test on a graph to determine whether a relation is a function. If it is impossible to draw a vertical line that intersects the graph more than once, then each x-value is paired with exactly one y-value. So, the relation is a function.
Given, the function is f(x) = x² + 2x + 3
We have to find the graph of the function.
Let y = x² + 2x + 3
Put x = -3
y = (-3)² + 2(-3) + 3
= 9 - 6 + 3
= 9 - 3
y = 6
Put x = -2
y = (-2)² + 2(-2) + 3
= 4 - 4 + 3
y = 3
Put x = -1
y = (-1)² + 2(-1) + 3
= 1 - 2 + 3
= 4 - 2
y = 2
Put x = 0
y = (0)² + 2(0) + 3
= 0 + 0 + 3
y = 3
Put x = 1
y = (1)² + 2(1) + 3
= 1 + 2 + 3
= 3 + 3
y = 6
We can plot the graph using the points.
The graph of the function f(x) = x² + 2x + 3 is a parabola with vertex (-1, 2).
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An expression is shown below: 3pf2 − 21p2f + 6pf − 42p2 Part A: Rewrite the expression by factoring out the greatest common factor. (4 points) Part B: Factor the entire expression completely. Show the steps of your work. (6 points)
The expression factoring out the greatest common factor is (3pf - 21p²)(f + 2).
We have the expression as
3pf² - 21p²f + 6pf - 42p²
Now, factorising the expression as
= 3pf² + 6pf - 21p²f - 42p²
= 3pf(f +2) - 21p²(f + 2)
= (3pf - 21p²)(f +2)
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I will give brainliest !!
Answer:
D
Step-by-step explanation:
When all the members in a domain has only but one member in the do main then function has been satisfied.
considering a situation of,
4 1
6 1
8 2
the domain has only one member in the Co domain hence which makes it a function
Which of the following is NOT a characteristic of a plane?
A. thickness
B. width
C. flat surface
D. length
Answer:
A). thickness are correct