-6x-(-8)=2
step by step
Equation/Question:
-6x-(-8)=2
Answer/Way I did it:
1. Remove parentheses.
-6x+8=2
2. Subtract 8 from both sides.
-6x=2-8
3. Simplify 2-8 to -6.
-6x=-6
4. Divide both sides by -6.
x=1
-------------
Checking:
Equation/Question:
−6x−(−8)=2
----------------------
1. Let x=1.
−6×1+8=2
2. Simplify -6×1 to −6.
-6+8=2
3. Simplify -6+8 to 2.
2=2
Done by NeighborhoodDealer
y-5x 7x + xy x = 0 and y = 4
Answer:
x(7y)x(7y)
Step-by-step explanation:
The given expression: 7(xy)7(xy)
i.e. a product of 7 and xy.
The operation used here: Multiplication.
Commutative property of multiplication :-
a\times b=b\times aa×b=b×a for any numbers a and b.
Associative property of multiplication :-
a\times(b\times c)=(a\times b\times c)a×(b×c)=(a×b×c) for any numbers a , band c.
Now, 7(xy)=(7x)y7(xy)=(7x)y [Associative property of multiplication]
=(x7)y=(x7)y [Commutative property of multiplication]
=x(7y)=x(7y) [Associative property of multiplication]
Evaluate 280/5
pleaseeeeeeeeeeeeeeeee.
i need help like nowwww
Answer: 56
Step-by-step explanation:
Answer:
56
Step-by-step explanation:
You can use a calculator to figure this out!
If b-10 = 5, what is the value of b-6?
The answer is 21. Hope this Helps!
Point Q lies on AB. What definition, property, or postulate justifies the statement AQ + QB = AB?
Answer:
Segment Addition Postulate.
Step-by-step explanation:
The segment addition postulate justifies the statement:
\(AQ+QB=AB\)
To help this make sense, you are namely adding segments on a line in order to achieve a complete line segment.
Find the zero of the graph
Janice has 15 pets. Each of her pets is either a dog or a bird. If her pets have a total of 38 legs, how
many dogs and how many birds does Janice own?
Hi!
These can be set up as systems of equations.
Let b = the number of birds, and let d = the number of dogs.
b + d = 21
2b + 4d = 76 (this is because birds have 2 legs and dogs have 4 legs.)
You can solve this using either elimination or substitution.
Consider marking brainliest.
Leslie gathered this data revealing the distance traveled and the cost of ticket when taking a commuter train between six different pairs of stations
The cost for two stations that are 10 miles apart will be $8.21.
What is cost?
Cost denotes the amount of money that a company spends on the creation or production of goods or services. It does not include the markup for profit. From a seller's point of view, cost is the amount of money that is spent to produce a good or product.
Given equation is;
y = 0.354x+4.669
Where x represents the number of miles traveled.
For measuring the cost for two stations that are 10 miles apart;
x=10
Putting in given equation
y=0.354(10)+4.669
y=3.54+4.669
y=8.209
Rounding off to nearest hundredth;
y=$8.21
The cost for two stations that are 10 miles apart will be $8.21
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In a triangle with angles measuring a, b and c degrees, the mean of b and c is a. What is the
value of a?
Answer:
60
Step-by-step explanation:
\(a+b+c=180\\\frac{b+c}{2}=a \rightarrow b+c=2a\\\\a+2a=180\\3a=180\\a=60\)
Therefore, the value of a is 60 degrees
PLEASE HELP ASAP!!!
I'd really appreciate the help, thanks in advance.
The questions below can be solved using the relation between angular size, physical size and distance. For the questions below, provide a complete solution with explanation.
1. Find the Sun's diameter. The sun has an angular diameter of about 0.5° and an average distance from the Earth of about 150 million km. What is the sun's approximate physical diameter? Compare your answer to the actual value of 1 390 000 km.
2. Find a Star's Diameter. The supergiant star Betelgeuse (in the constellation Orion) has a measured angular diameter of 0.040 arcsecond from Earth and a distance from Earth of 720 light-years. What is the actual diameter of Betelgeuse? Compare your answer to the size of our Sun and the Earth-Sun distance.
The physical diameter of the sun will be 1309000km and the percentage of difference between the diameters will be 5.8%.
How to calculate the diameter?From the information, the sun has an angular diameter of about 0.5° and an average distance from the Earth of about 150 million km. The angular diameter in radians will be:
= 0.5π / 180
= 0.008727 radians
Distance from the sun = 150 × 10^6
The physical diameter of the sun will be:
= 150 × 10^6 × 0.008727
= 1309000km
The difference between the diameters will be:
= 1390000 - 1309000
= 8.1 × 10^4.
The percentage of difference will be:
= (8.1 * 10^4) / 1390000 × 100
= 5.8%
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Find the answer to the green box give your answer in simplest form
Apply right triangle proportions:
\(\frac{16}{x}=\frac{x}{20}\)20 (16) = x (x)
320 = x^2
√320 = x
x = 8√5
Triangle MNP with vertices M(-7,6) N(-1,2) and P(-6,0) 270 degree clockwise
Answer:
M(-6,-7), N(-2,-1), P(0,6)
Rotation Formula 180 degrees: (x,y) -> (-x,-y)
Rotation Formula 90 degrees clockwise: (x,y) -> (y,-x)
M) (-7.6) -> (7,-6) -> (-6,-7)
N) (-1,2) -> (1,-2) -> (-2,-1)
P) (-6,0) -> (6,0) -> (0,6)
Challenger Elementary School has 800 students. Every Wednesday, 12% of the students stay after school
for Chess Club.
How many students attend Chess Club on Wednesdays?
Answer:
96
Step-by-step explanation:
to be honest i just looked it up on google
Cheryl is buying lace for her dance costume. One foot of lace costs 3 dollars. How much does each amount cost? 3/4 of a foot?
Step-by-step explanation:
one foot cost 3 so a fourth of one foot is one fourth of three which is .75 and .75 x 3 is 2.25
A. 2 sqrt 3
B. 4
C. 8
D. 4 sqrt 6
E. 12
Please help
Answer:
Option B. 4
Step-by-step explanation:
From the question given above, the following data were obtained:
Angle θ = 60 °
Opposite (Fe) = 4√3
Adjacent (DE) = x
The value of x can be obtained by using the Tan ratio as illustrated below:
Tan θ = Opposite / Adjacent
Tan 60 = 4√3 / x
√3 = 4√3 / x
Cross multiply
√3 × x = 4√3
Divide both side by √3
x = 4√3 /√3
x = 4
Thus, the length of DE is 4
Genesis is older than Dylan. Their ages are consecutive integers. Find Genesis's age if
the product of their ages is 110.
(ill give brainliest )
Answer:
Dylan is 10 years old, and Genesis is 11.
Step-by-step explanation:
If Genesis and Dylan's age are consecutive integers, and Genesis is older, we can represent their ages as:
Dylan's age: x
Genesis' age: x+1
This would mean Genesis is a year older than Dylan.
The product of their ages is 110.
We can write an equation:
x×(x+1)=110
x²+x=110 (Distribute x)
x²+x-110=0 (Move 110 to the other side)
You can solve this by the quadratic equation, by factoring or by completing the square
I'll solve it by the quadratic equation:
We must first find the coefficients a, b and c, and then plug it into the formula.
\(x = \frac{ - 1 + - \sqrt{ {1}^{2} - 4 \times 1 \times - 110} }{2 \times 1} \\ x = \frac{ - 1 + - \sqrt{1 + 440} }{2} \\ x = \frac{ - 1 + - 21}{2} \)
Since we have a ± symbol, we get 2 real solutions, x1 and x2.
x=-1±21/2
x1=-1+21/2
x1=20/2
x1=10
x2=-1-21/2
x2=-22/2
x2=-11
Since their age can't be negative, x2 can't be a solution, so Dylan's age must be 10, and Genesis' age must be 11.
Hope this helps, and let me know if you need help with another method to solve this problem!
90 dL times L/dL equals what
90 dL times L/dL equals 9 L
How to find 90 dL times L/dLTo understand why 90 dL times L/dL equals 90L, it's important to understand the units involved and how they cancel out.
First, dL stands for deciliter, which is a unit of volume equal to one-tenth of a liter.
L, on the other hand, stands for liter, which is a unit of volume equal to 1000 milliliters or one cubic decimeter.
So, 90 dL represents a volume of 90 deciliters, while L/dL represents a ratio of liters to deciliters.
Specifically, L/dL means "liters per deciliter," which is a way of expressing a conversion factor between liters and deciliters.
Multiplying 90 dL by L/dL involves multiplying 90 dL by the conversion factor of L/dL, which is 1 liter per 10 deciliters. The deciliter units cancel out, leaving only the liter units.
Therefore, we can rewrite the calculation as follows:
90 dL x (1 L/10 dL) = (90/10) L = 9 L
So, the result is 9 L, which is equivalent to 90 dL times L/dL.
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How was the theory of plate tectonics developed?
What evidence supports the theory of plate tectonics?
Answer: continental drift
Step-by-step explanation: as far as I'm aware, they developed the theory of plate tectonics by the continental drift theory and that the world looks like a puzzle, I may be wrong but this is all I know
And please tell me how you did it
The unknown angle in the cyclic quadrilateral is as follows:
m∠CML = 109 degrees
How to find an angle in a cyclic quadrilateral?A cyclic quadrilateral is a quadrilateral which has all its four vertices lying on a circle.
The sum of angles in a cyclic quadrilateral is 360 degrees.
Therefore, let's find m∠CML as follows:
Using the arc angle and opposite angle of a quadrilateral theorem,
6x + 25 = 1 / 2 (7x + 14 + 106)
6x + 25 = 1 / 2(7x + 120)
6x + 25 = 7 / 2 x + 60
6x - 7 / 2 x = 60 - 25
6x - 3.5x = 35
2.5x = 35
divide both sides by 2.5
x = 35 / 2.5
x = 14
Therefore,
m∠CML = 6x + 25 = 6(14) + 25 = 84 + 25 = 109 degrees
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A) Find an equation for the line perpendicular to the tangent line to the curve y=x^3-4x+6 at the point (2,6)
-The equation is y=
b) What is the smallest slope on the curve? At what point on the curve does the curve have this slope?
-The smallest slope on the curve is
-The curve has the smallest slope at the point
c) Find equations for the tangent lines to the curve at the points where the slope of the curve is 8.
Answer:
f(x) = x³ - 4x + 6
f'(x) = 3x² - 4
a) f'(2) = 3(2²) - 4 = 12 - 4 = 8
6 = 8(2) + b
6 = 16 + b
b = -10
y = 8x - 10
b) 3x² - 4 = 0
3x² = 4, so x = ±2/√3 = ±(2/3)√3
= ±1.1547
f(-(2/3)√3) = 9.0792
f((2/3)√3) = 2.9208
c) 3x² - 4 = 8
3x² = 12
x² = 4, so x = ±2
f(-2) = (-2)³ - 4(-2) + 6 = -8 + 8 + 6 = 6
6 = -2(8) + b
6 = -16 + b
b = 22
y = 8x + 22
f(2) = 6
y = 8x - 10
The equation perpendicular to the tangent is y = -1/8x + 25/4
-The smallest slope on the curve is 2.92
The curve has the smallest slope at the point (1.15, 2.92)
The equations at tangent points are y = 8x + 16 and y = 8x - 16
Finding the equation perpendicular to the tangentFrom the question, we have the following parameters that can be used in our computation:
y = x³ - 4x + 6
Differentiate
So, we have
f'(x) = 3x² - 4
The point is (2, 6)
So, we have
f'(2) = 3(2)² - 4
f'(2) = 8
The slope of the perpendicular line is
Slope = -1/8
So, we have
y = -1/8(x - 2) + 6
y = -1/8x + 25/4
The smallest slope on the curveWe have
f'(x) = 3x² - 4
Set to 0
3x² - 4 = 0
Solve for x
x = √[4/3]
x = 1.15
So, we have
Smallest slope = (√[4/3])³ - 4(√[4/3]) + 6
Smallest slope = 2.92
So, the smallest slope is 2.92 at (1.15, 2.92)
The equation of the tangent lineHere, we set f'(x) to 8
3x² - 4 = 8
Solve for x
x = ±2
Calculate y at x = ±2
y = (-2)³ - 4(-2) + 6 = 6: (-2, 0)
y = (2)³ - 4(2) + 6 = 6: (2, 0)
The equations at these points are
y = 8x + 16
y = 8x - 16
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(a) Determine all critical points of the given system of equations.(b) Find the corresponding linear system near each critical point.(c) Find the eigenvalues of each linear system. What conclusions can you then draw about the nonlinear system?(d) Draw a phase portrait of the nonlinear system to confirm your conclusions, or to extend them in those cases where the linear system does not provide definite information about the nonlinear system. dx/dt=(2+x)(y−x),dy/dt=(4−x)(y+x)
(a) The critical points of the given system of equations are (0,0), (2,2), and (-2,-2).
(b) Near the critical point (0,0), the linear system is: \(\frac{dx}{dt} = 2y, \frac{dy}{dt} = -2x\). Near the critical point (2,2), the linear system is: \(\frac{dx}{dt} = -2y, \frac{dy}{dt} = 2x\) Near the critical point (-2,-2), the linear system is: \(\frac{dx}{dt} = 2y, \frac{dy}{dt} = -2x\)
(c) The eigenvalues of the linear system near (0,0) are: ±2i. The eigenvalues of the linear system near (2,2) are: ±2i. The eigenvalues of the linear system near (-2,-2) are: ±2i. These eigenvalues indicate that the nonlinear system is stable near each of the critical points.
(d) The phase portrait of the nonlinear system will be a series of circles centered at each of the critical points and will show that the system is stable near each of the critical points.
A critical point of a system of equations is a point at which the derivative of the system is equal to zero.
To find the critical points of the given system, we can set the derivative of each equation equal to zero and solve for x and y. For the first equation, this gives us:
\(\frac{dx}{dt}\) = (2 + x)(y - x) = 0
If we set the derivative equal to zero, then either (2 + x) = 0 or (y - x) = 0. If (2 + x) = 0, then x = -2. If (y - x) = 0, then y = x.
For the second equation, setting the derivative equal to zero gives us:
dy/dt = (4 - x)(y + x) = 0
If we set the derivative equal to zero, then either (4 - x) = 0 or (y + x) = 0. If (4 - x) = 0, then x = 4. If (y + x) = 0, then y = -x.
Therefore, the critical points of the given system are (-2,0), (4,0), and (0,0).
Next, we can find the corresponding linear system near each critical point by finding the Jacobian matrix of the given system at each critical point. The Jacobian matrix is a matrix of the partial derivatives of the system with respect to x and y.
At the critical point (-2,0), the Jacobian matrix is:
[(2 + x)(y - x) (2 + x)(y - x)]
[(4 - x)(y + x) (4 - x)(y + x)]
Evaluating this matrix at the point (-2,0) gives us:
[(-2)(0 - (-2)) (-2)(0 - (-2))]
[(-2)(0 + (-2)) (-2)(0 + (-2))]
= [4 4]
[-4 -4]
At the critical point (4,0), the Jacobian matrix is:
[(2 + x)(y - x) (2 + x)(y - x)]
[(4 - x)(y + x) (4 - x)(y + x)]
Evaluating this matrix at the point (4,0) gives us:
[(4)(0 - 4) (4)(0 - 4)]
[(4 - 4)(0 + 4) (4 - 4)(0 + 4)]
= [-8 -8]
[0 0]
At the critical point (0,0), the Jacobian matrix is:
[(2 + x)(y - x) (2 + x)(y - x)]
[(4 - x)(y + x) (4 - x)(y + x)]
Evaluating this matrix at the point (0,0) gives us:
[(2)(0 - 0) (2)(0 - 0)]
[(4 - 0)(0 + 0) (4 - 0)(0 + 0)]
= [0 0]
[0 0]
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Which equation results from adding the equations in this system?
-8x+8y=8
3x-8y=-18
Answer:
-5x=-10
Step-by-step explanation:
Adding both equations will result in this
Which of the following exemplifies a research hypothesis? A. Democrats and Republicans have different attitudes toward gun control. B. Millennials and Gen-Xers have similar levels of anxiety. C. The driving habits of men do not differ from those of women. D. Liberals and conservatives have the same voting rates.
Please welp me I need help
Answer:
18
Step-by-step explanation:
I WILL MARK YOU THE BRAINLIEST !!!
Answer:
1. m is the correct one
2. h is the correct one
Andre is walking from home to a festival that is 1 5\8 kilometers away. He takes a quick rest after walking 1\3 kilometers. In this situation, which question can be represented by the equation: ?× 1 5\8 = 1\3?
The question that can be represented by the equation: ?× 1 5\8 = 1\3 is a. What fraction of the trip has Andre completed?.
How can we know the question that can be represented by the equation?It was stated that from home to a festival that is 1 5\8 kilometers away, and later after some moments we were told that He takes a quick rest after walking 1\3 kilometers.
Then if we were to know the fraction of the trip has Andre completed, then the calculation will be ?× 1 5\8 = 1\3 which makes the option A that was chosen to be correct.
Therefore, option A is correct.
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CHECK THE MISSING OPTIONS;
a. What fraction of the trip has Andre completed?
b. How many more kilometer does he have to walk to get to the festival?
c. What fraction of the trio is left.
d. How many kilometers is it from home to the festival and back home?
income from operations of $231,000. In addition, it received interest income of $23,100 and received dividend income of $29,700 from another corporation. Finally, it paid $11,000 of interest income to its bondholders and paid $45,000 of dividends to its common stockholders. The firm's federal tax rate is 21%. What is the firm's federal income tax? Do not round intermediate calculations. Round your answer to the nearest dollar.
The firm's federal income tax is $57,168.
To calculate the firm's federal income tax, we need to determine its taxable income first. Taxable income is calculated by subtracting deductions from the firm's total income.
In this case, the firm's total income consists of income from operations, interest income, and dividend income.
Total income:
Income from operations = $231,000
Interest income = $23,100
Dividend income = $29,700
Total income = $231,000 + $23,100 + $29,700 = $283,800
Next, we deduct expenses from the total income. In this case, the only relevant expense is the interest paid to bondholders:
Total expenses = Interest paid to bondholders = $11,000
Taxable income = Total income - Total expenses = $283,800 - $11,000 = $272,800
Now, we can calculate the federal income tax by applying the federal tax rate of 21% to the taxable income:
Federal income tax = Taxable income * Federal tax rate
Federal income tax = $272,800 * 0.21 = $57,168
Therefore, the firm's federal income tax is $57,168.
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help you have 3/8 of a pound of chips if 1/6 of a pound is a serving how many servings are their
Answer:
2 1/4 servingsStep-by-step explanation:
Given
Total amount of chips = 3/8 of a pound,Each serving = 1/6 of a pound.Number of servings:
3/8 ÷ 1/6 = 3/8 × 6 = 9/4 = 2 1/4Find the difference between the actual quotient and the estimated quotient of 54,114÷29 . (Dividend is rounded off to nearest thousand and divisor to nearest ten)
The difference between the actual quotient and the estimated quotient of 54,114 ÷ 29 is approximately 66.3448275862068965517241379.
To find the difference between the actual quotient and the estimated quotient of 54,114 ÷ 29, we need to first calculate the actual quotient and then the estimated quotient.
Actual quotient:
Dividing 54,114 by 29, we get:
54,114 ÷ 29 = 1,866.3448275862068965517241379 (approximated to 28 decimal places)
Estimated quotient:
Rounding the dividend, 54,114, to the nearest thousand gives us 54,000. Rounding the divisor, 29, to the nearest ten gives us 30. Now, we can perform the division with the rounded values:
54,000 ÷ 30 = 1,800
Difference between actual and estimated quotient:
Actual quotient - Estimated quotient = 1,866.3448275862068965517241379 - 1,800 = 66.3448275862068965517241379
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In an 8 hour and 30 minute shift a patrolman drove 272 miles. What was his average rate(mph) during the shift?
Answer:
32 mph
Step-by-step explanation:
We want to find the patrolman's rate in miles per hour during the shift. Since we want to find miles per hour, we must divide the miles he drove by the number of hours.
rate = miles / hours
He drove 272 miles.
rate = 272 miles / hours
He drove for 8 hours and 30 minutes. There are 60 minutes in 1 hour. One half of 60 is 30. Therefore, we can also say he drove eight and a half, or 8.5 hours.
rate= 272 miles / 8.5 hours
rate = 32 miles / hour
rate= 32 mph
His average rate during the shift was 32 miles per hour.
Answer:
32 mph
Step-by-step explanation:
To answer this, find the average rate of change
272 mi
------------- = 32 mph
8.5 hr