Answer:
\(\displaystyle y=-\frac{a}{b}x+\frac{c}{b}\)
Step-by-step explanation:
The equation of the line, expressed in slope-intercept form is:
\(y=mx+y_o\)
Where m the slope and yo the y-intercept.
Since we are given the line in standard form:
ax+by=c
To find the slope-intercept form, we just solve it for y:
\(\boxed{\displaystyle y=-\frac{a}{b}x+\frac{c}{b}}\)
Comparing the last equation with the slope-intercept form:
\(\displaystyle m=-\frac{a}{b}\)
\(\displaystyle y_o=\frac{c}{b}\)
Answer:
ax + by = c
-ax -ax
by=ax+c
then dived both sides by b to get y by itself
y= a/bx +c
Step-by-step explanation:
DUE TOMORROW PLEASE HELP!!!!
The center of an airplane propeller is 13 feet off the ground and the radius of the propeller is 3 feet. The blades of the propeller are set at π/6, 5π/6, and 3π/2 radians from 0 radians directly to the right of the center of the propeller.
What is the height of the tip of each propeller in this position?
The heights of the tips of the propeller blades at π/6, 5π/6, and 3π/2 radians are 15.5 feet, 11.5 feet, and 10 feet, respectively.
What is the equation of a circle in parametric form?
The equation of a circle in parametric form is given by x=acosθ,y=asinθ.
We can use the equation for a circle in standard form:
(x - h)² + (y - k)² = r²
where (h, k) is the center of the circle and r is the radius.
In this case, the center of the propeller is (0, 13) and the radius is 3. So the equation of the circle is:
x² + (y - 13)² = 9
We can use this equation to find the x and y coordinates of the tip of each propeller.
For the blade at π/6 radians, we can use the parametric equations for a circle:
x = r cos(t) + h
y = r sin(t) + k
where t is the angle in radians.
Substituting r = 3, h = 0, k = 13, and t = π/6, we get:
x = 3 cos(π/6) + 0 = 3√3/2
y = 3 sin(π/6) + 13 = 13 + 3/2 = 15.5
So the height of the tip of the propeller blade at π/6 radians is 15.5 feet.
Using the same method for the blades at 5π/6 and 3π/2 radians, we get:
Blade at 5π/6 radians:
x = 3 cos(5π/6) + 0 = -3√3/2
y = 3 sin(5π/6) + 13 = 13 - 3/2 = 11.5
Height of tip: 11.5 feet
Blade at 3π/2 radians:
x = 3 cos(3π/2) + 0 = 0
y = 3 sin(3π/2) + 13 = 10
Height of tip: 10 feet
Therefore, the heights of the tips of the propeller blades at π/6, 5π/6, and 3π/2 radians are 15.5 feet, 11.5 feet, and 10 feet, respectively.
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The price paid for fuel is in direct proportion with the amount purchased.
If $73.47 is paid for 35L and 50L costs $104.95, determine the constant of proportionality.
Interpret this calculated value.
is 3087 a perfect cube
Answer:
Since the prime factor '3' does not form a triplet , hence the given number is not a perfect cube.
No, it is not a perfect cube.
Step-by-step explanation:
3√3087 = 14.56
5, 12, and 13 is it a right triangle
Answer:
yeah
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
Help please
I’m trying to find value of x and y. i need to write out the problem
Jack brought a lunch box for $8 and 7 forks. He spent a total of $105. How much did each fork cost?
Answer:
13.85$
Step-by-step explanation:
105$-8$=97$
97$/7$=13.85$
Answer: About $13.86
Step-by-step explanation: To find how much the cost of the forks is, we need to subtract the value of the lunch box from the total cost, because we don't need to find the value of the lunch box. So:
105 - 8 = 97
So, now since he bought 7 forks, we need to divide 7 by 97. So:
97 / 7 = 13.857142857142858
So, we need to round to the nearest cent. So, the 7 is greater than 5, so we round up. So, we have $13.86 each. So, check, we do:
13.86(7) + 8
97.02 + 8
= 105.02
This is the closest he can buy for each fork is ABOUT $13.86. I hope this helps ;)
what is the measure of ∠C?
Answer:
Measure C, the Sacramento Community Stabilization and Fair Rent Charter Amendment is on the November ballot for the city of Sacramento after a lengthy court battle. The measure is written to supersede the Sacramento Tenant Protection Act, which was passed in 2019. Here are the results for Measure C as they come in:
Step-by-step explanation:
a rectangle with a diagonal of length xx is twice as long as it is wide. what is the area of the rectangle?
A rectangle with a diagonal of length x is twice as long as it is wide, the area of the rectangle is (B) 2x²/5..
How to find the area of the rectangle?Given that we have a rectangle with a diagonal of length x is twice as long as it is wide.
Let
L = length of rectangle,
W = width of rectangle and
D = length of diagonal = x
Given that the length of diagonal, x is twice as long as it is wide, we have that
L = 2W
Also, since it is rectangle, we have that
D² = L² + W²
D² = (2W)² + W²
D² = 4W² + W²
x² = 5W²
W² = x²/5
W = x/√5
W = x√5/5
since the length of the rectangle, L = 2W, we have that
L = 2W
= 2x√5/5
The area of the rectangle
The area of the rectangle is given by A = LW where
L = length of rectangle and
W = width of rectangle
So, A = LW
= 2x√5/5 × x√5/5
= 2x² × 5/25
= 2x²/5
So, the area of the rectangle is (B) 2x²/5
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Is the conditional statement "If a human being has 7 heads, then theyhave 11 arms" true or false? Explain.
The conditional statement "If a human being has 7 heads, then they have 11 arms" is false.
The statement is false because it is biologically impossible for a human to have 7 heads. The anatomy of a human being only allows for one head. Therefore, the statement is a contradiction and cannot be considered true.
Additionally, even if it were possible for a human to have 7 heads, it would not necessarily mean that they would have 11 arms. The statement makes an assumption that is not based on any scientific or logical evidence.
In conclusion, the statement "If a human being has 7 heads, then they have 11 arms" is false.
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Lynn filled each of three bags with 2 kilograms 450 grams of sand. Is the mass of 2 bags greater than or less than 5 kilogram? Explain how you know.
The sketch to illustrate the question is given below
Since each of the bags are filled equally with 2 kilograms 450 grams of sand
Then we can sum two bags and compare the mass with 5 kilogram
We can see that the sum of two bags weighs 4 kilograms and 900 grams (4.90 kilograms) which is 100 grams less than 5 kilograms.
Thus we can conclude that the mass of 2 bags is LESS THAN 5 kilograms
Find the area of parallelogram with base b and height h
b=82.cm
h=16.6cm
area= b*h
82.* 16.6
area= 1361.2 since i dont know the number after the decimal in 82. that was the only answer i could give
You are given a choice of taking the simple interest on $100,000 invested for 2 years at a rate of 3% or the interest on $100,000 invested for 2 years at an interest rate of 3% compounded quarterly
Which investment as the greater amount of interest? Give the difference between the amounts of interest earned by the two investments
the investment with simple? or compound?
interest earns $___ more in interest.
(Round to the nearest cant as needed.)
Answer:
Step-by-step explanation:
the simple interest formula= principal* interest rate*time
simple interest : 100000*%2*2 years
simple interest= 4000 dollars
compound quarterly : A=principal(1+r/4)^t
since it is quarterly and have 4 quarters in a year, and 8 in two years.
compound quarterly: 100000(1+0.03/4)^8=106159.88
it is better to invest with compound interest because it add 6159 dollars in two years to the investment of 100000 dollars.
the difference between the interest: 6159.88-4000=2159.88
Which graph best represents a
system of equations that has no
solution?
F
H
J
Answer:
There are no graphs on the question
Step-by-step explanation:
1. Consider the following problem.
Maximize Z = 2x₁ + 5x₁₂₃ + 3x₁₂₃
subject to
x₁ - 2x₂ + x₃ ≤ 20
2x₁ + 4x₂ + x₃ = 50
x₁ ≥0, x₂≥ 0, x₃ ≥ 0.
Using the Big M method, construct the complete first simplex tableau for the simplex method and identify the corresponding initial (artificial) basic solution. Also identify the initial entering basic variable and the leaving basic variable.
To construct the first simplex tableau using the Big M method. The initial artificial basic solution is x₅ = 20 and x₆ = 50. The initial entering basic variable is x₁ and the leaving basic variable is x₅.
To construct the first simplex tableau using the Big M method, we first rewrite the problem in standard form as follows:
Maximize \(Z = 2x₁ + 5x₂ + 3x₃\)
subject to
\(x₁ - 2x₂ + x₃ + x₄ = 20\\2x₁ + 4x₂ + x₃ = 50\\x₁ ≥ 0, x₂ ≥ 0, x₃ ≥ 0, x₄ ≥ 0.\)
To construct the initial simplex tableau, we introduce artificial variables x₅ and x₆ to the two equations.
The initial tableau is:
Basis | x₁ | x₂ | x₃ | x₄ | x₅ | x₆ | RHS
----------------------------------------------------------------------
x₅ | 1 | 2 | 1 | 0 | 1 | 0 | 20
x₆ | 2 | 4 | 1 | 0 | 0 | 1 | 50
----------------------------------------------------------------------
-Z | -2 | -5 | -3 | 0 | 0 | 0 | 0
The initial artificial basic solution is x₅ = 20 and x₆ = 50. The initial entering basic variable is x₁ and the leaving basic variable is x₅.
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Using the Big M method, the complete first simplex tableau for the given linear programming problem is constructed as follows:
┌─────────────┬──────┬───────┬───────┬─────┬─────┬─────┬─────────────┐
│ BV │ x₁ │ x₂ │ x₃ │ s₁ │ s₂ │ a₁ │ RHS │
├─────────────┼──────┼───────┼───────┼─────┼─────┼─────┼─────────────┤
│ Z │ 2 │ 5 │ 3 │ 0 │ 0 │ 0 │ 0 │
├─────────────┼──────┼───────┼───────┼─────┼─────┼─────┼─────────────┤
│ x₁ - 2x₂ │ 1 │ -2 │ 1 │ -1 │ 0 │ 0 │ 20 │
├─────────────┼──────┼───────┼───────┼─────┼─────┼─────┼─────────────┤
│ 2x₁ + 4x₂ │ 2 │ 4 │ 1 │ 0 │ -1 │ 0 │ 50 │
├─────────────┼──────┼───────┼───────┼─────┼─────┼─────┼─────────────┤
│ x₁ │ 1 │ 0 │ 0 │ 0 │ 0 │ -M │ 0 │
├─────────────┼──────┼───────┼───────┼─────┼─────┼─────┼─────────────┤
│ x₂ │ 0 │ 1 │ 0 │ 0 │ 0 │ -M │ 0 │
├─────────────┼──────┼───────┼───────┼─────┼─────┼─────┼─────────────┤
│ x₃ │ 0 │ 0 │ 1 │ 0 │ 0 │ -M │ 0 │
└─────────────┴──────┴───────┴───────┴─────┴─────┴─────┴─────────────┘
The initial (artificial) basic solution is x₁ = 0, x₂ = 0, x₃ = 0, s₁ = 20, s₂ = 50, a₁ = 0. The initial entering basic variable is x₁, which has the most positive coefficient in the objective row. The leaving basic variable is s₁, determined by selecting the row with the smallest positive ratio of the right-hand side (RHS) to the entering column's coefficient. In this case, the ratio for the second row (20/1) is the smallest, so s₁ leaves the basis.
To construct the complete first simplex tableau using the Big M method, we first convert the given problem into standard form by introducing slack variables (s₁, s₂) for the inequalities and an artificial variable (a₁) for the equality constraint. We assign a large positive value (M) to the coefficients of the artificial variables in the objective row.
The first row represents the objective function, where the coefficients of the decision variables x₁, x₁₂₃ are taken directly from the given problem. The slack variables and the artificial variable (a₁) have coefficients of 0 since they don't appear in the objective function.
The subsequent rows represent the constraints. Each row corresponds to one constraint, where the coefficients of the decision variables, slack variables, and the artificial variable are taken from the original problem. The right-hand side (RHS) values are also copied accordingly.
The initial (artificial) basic solution is obtained by setting the decision variables to 0, the slack variables and the artificial variable to the right-hand side values. In this case, x₁ = 0, x₂ = 0, x₃ = 0, s₁ = 20, s₂ = 50, and a₁ = 0.
The initial entering basic variable is determined by selecting the most positive coefficient in the objective row, which is x₁ in this case. The leaving basic variable is determined by finding the smallest positive ratio of the RHS to the entering column's coefficient. Since the ratio for the second row (20/1) is the smallest, s₁ leaves the basis.
The resulting tableau serves as the starting point for applying the simplex method to solve the linear programming problem iteratively.
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please help me quickly
Answer:
A. step 1
Step-by-step explanation:
I think its A , because a negative plus a negative is a postive
Answer:
step 2 is the incorrect step
what is 847x456+3599872+315589
please help
Answer:
= 4301693
Step-by-step explanation:
Given: 847x456+3599872+315589
Simplify the expression on the addition and multiplication sides:
386232 + 3915461
Then add:
= 4301693
Use the formula to find the volume of the figure. Show your work.
Hello !
Answer:
\(\boxed{\sf V{cone} \approx 2408.55 m^3}\)
Step-by-step explanation:
To find the volume of a cone with the radius of its base and its height, we will apply the following formula:
\( \sf V{cone} = \dfrac{\pi \times r^2 \times h}{3} \)
Where r is the radius of its base and h is its height.
Given:
r = 10 mh = 23 mLet's substitute our values into the formula:
\(\sf V{cone} = \dfrac{\pi (10)^2(23)}{3} = \dfrac{2300\pi}{3} \ \ \\\boxed{\sf V{cone} \approx 2408.55 m^3}\)
Have a nice day ;)
The probability distribution for a
random variable x is given in the table.
-5
-3
-2
0
2.
3
Probability
.17
.13
133
.16
.11
.10
Find the probability that x < -3
Answer:
0.30
Step-by-step explanation:
P(x ≤ -3) = P(x=-3) + P(x=-5)
P(x ≤ -3) = 0.13 + 0.17
P(x ≤ -3) = 0.30
Answer:
0.30
Step-by-step explanation:
correct
Solve for x in this problem √x-2 +4=x
The Radical Form (√x) ,the solutions to the equation √x - 2 + 4 = x are x = 1 and x = 4.
The equation √x - 2 + 4 = x for x, we can follow these steps:
1. Begin by isolating the radical term (√x) on one side of the equation. Move the constant term (-2) and the linear term (+4) to the other side of the equation:
√x = x - 4 + 2
2. Simplify the expression on the right side of the equation:
√x = x - 2
3. Square both sides of the equation to eliminate the square root:
(√x)^2 = (x - 2)^2
4. Simplify the equation further:
x = (x - 2)^2
5. Expand the right side of the equation using the square of a binomial:
x = (x - 2)(x - 2)
x = x^2 - 2x - 2x + 4
x = x^2 - 4x + 4
6. Move all terms to one side of the equation to set it equal to zero:
x^2 - 4x + 4 - x = 0
x^2 - 5x + 4 = 0
7. Factor the quadratic equation:
(x - 1)(x - 4) = 0
8. Apply the zero product property and set each factor equal to zero:
x - 1 = 0 or x - 4 = 0
9. Solve for x in each equation:
x = 1 or x = 4
Therefore, the solutions to the equation √x - 2 + 4 = x are x = 1 and x = 4.
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a hospital director is told that 32% 32 % of the treated patients are uninsured. the director wants to test the claim that the percentage of uninsured patients is under the expected percentage. a sample of 160 160 patients found that 40 40 were uninsured. find the value of the test statistic. round your answer to two decimal places.
The value of the test statistic is -1.75.
To test the claim that the percentage of uninsured patients is under the expected percentage of 32%, we can use a one-sample z-test. The null hypothesis is that the true percentage of uninsured patients is equal to 32%, while the alternative hypothesis is that the true percentage is less than 32%.
Using the sample data, we can calculate the sample proportion of uninsured patients as 40/160 = 0.25. We can then calculate the standard error of the sample proportion as sqrt[(0.32 x 0.68)/160] = 0.0385.
The test statistic can be calculated as (0.25 - 0.32)/0.0385 = -1.75.
To find the p-value associated with this test statistic, we can use a standard normal distribution table or a calculator to find the probability of a z-score less than -1.75. The p-value is approximately 0.04.
Since the p-value is less than the typical significance level of 0.05, we reject the null hypothesis and conclude that there is evidence to support the claim that the percentage of uninsured patients is under the expected percentage of 32%.
Therefore, the correct answer is -1.75, which is the calculated value of the test statistic.
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A blueprint for a house has a scale factor n = 10. A wall in the blueprint is 7 in. What is the length of the actual wall?
840 ft.
5.83 in.
70 ft.
5.83 ft.
Answer:
5.83 ft
Step-by-step explanation:
Given that
Scale factor, n = 10
Wall in blueprint = 7 in
To find:
Length of actual wall = ?
Solution:
Whenever a blueprint is created for any house or building, it is made smaller by a scale factor.
Here this factor is 10 times.
That means, the blueprint size is 10 times smaller than that of its actual size.
Or we can say that actual wall of building is 10 times the wall of blueprint.
So, wall of building = 10 \(\times\) 7 = 70 inches
Now, we know that 12 inches = 1 ft
1 inch = \(\frac{1}{12}\ ft\)
70 inches = \(\frac{1}{12}\times 70\ ft = 5.83\ ft\)
so, the answer is Wall of building is 5.83 ft.
DUE TOMORROW!!
Whoever answers this first will get a prize
The prize is:
you get these girls messages that are saying your AMAZING!!
dentify whether this angle is acute, obtuse, right, or straight. (1 point)
angle that measures one hundred eighty degrees
a
Acute
b
Obtuse
c
Right
d
Straight
In conclusion, the correct answer is d) Straight.
The correct answer is d) Straight.
In geometry, an angle is formed by two rays that have a common endpoint. Angles can be classified based on the measure of their degree. A straight angle measures 180 degrees, which is the same as a straight line. It is formed by two opposite rays that point in opposite directions, and they create a straight line.
Therefore, an angle that measures 180 degrees is called a straight angle. In a straight angle, the two rays point in opposite directions and form a straight line. This angle is not acute, obtuse, or right because it doesn't form a triangle, and the degree measure is not less than 90 degrees or greater than 90 degrees.
In conclusion, the correct answer is d) Straight.
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Select all expressions that are equivalent to 2( - 2x + 5) +x
1. 3x + 10
2. - 3x + 10
3. 4x + 10 + x
4. -4x + 10 + x
Answer:
2) -3x+10
4) -4x+10+x
Step-by-step explanation:
Use the distributive property to get rid of the parentheses.
(2 × -2x) + (2 × 5) + x
-4x + 10 +x is correct, but the x's can be combined.
(-4x + x) + 10 = -3x + 10
Factor completely. x2 - 400 (x + 20) (x - 20) 0 (x + 4)(x + 100) 0 (x + 25)(x - 16) (x - 50) (x +8) plz
\(\\ \sf\ast\Rrightarrow x^2-400\)
\(\\ \sf\ast\Rrightarrow (x)^2-(20)^2\)
a^2-b^2=(a+b)(a-b)\(\\ \sf\ast\Rrightarrow (x+20)(x-20)\)
Step-by-step explanation:
x²-400(x)²-(20)²By the formula, [a²-b²=(a+b)(a-b)]
(x+20)(x-20)Hence, first option is correct
use the given scale factor and the side lengths of the scale drawing to determine the side lengths of the real object 6:1
Answer: Its B. Side a is 2 inches long and side b is 1.5 inches long.
Step-by-step explanation:
What does this value represent? a. For every gold you spend, you should be able to play this many cards. b. Every time you play a card, you will need to pay this much gold. c. This is the most common amount of gold you will need to pay to play a card. d. If you were to play many cards, this is the average you should expect to pay per card.
The values represent the option (ii) If you were to play many cards, this is the average you should expect to pay per card.
To calculate the average gold cost per card, we need to multiply each gold cost by its proportion and sum the results. This is equivalent to finding the weighted mean of the gold costs, with the proportions serving as the weights. Using the table values, we can calculate the average gold cost per card as follows:
Average gold cost per card = (1 x 0.13) + (2 x 0.21) + (3 x 0.48) + (4 x 0.18)
= 0.13 + 0.42 + 1.44 + 0.72
= 2.71
Therefore, on average, you should expect to pay 2.71 gold to play a card from your 74-card deck. This value represents the average amount of gold you will need to pay to play a card, not the most common amount or the amount you need to pay every time you play a card.
It is important to note that the actual gold cost for playing a card may vary from card to card, but the average gold cost per card should be close to the calculated value if you play a large number of cards.
Therefore, the correct option is (ii).
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Complete Question:
A certain game requires you to pay gold in order to play your cards. For a 74 card deck, the proportion of cards with various gold costs are given in the following table. Use 2 decimal places to answer the following questions when applicable.
Gold 1 2 3 4
Proportion 0.13 0.21 0.48 0.18
(a) What does this value represent?
(i) This is the most common amount of gold you will need to pay to play a card.
(ii) If you were to play many cards, this is the average you should expect to pay per card.
(iii) Every time you play a card, you will need to pay this much gold.
(iv) For every gold you spend, you should be able to play this many cards.
Simplify combining the like terms: (i) a – (a – b) – b – (b – a)
Hello !
\(a - (a - b) - b - (b - a)\\\\= a - a + b - b - b+a\\\\\boxed{= a - b}\)
Answer:
Step-by-step explanation:
a - ( a - b ) - b - ( b - a )
= a - a + b - b - b + a
= a - b
a coin is flipped and a six-sided die, numbered 1 to 6, is rolled. find the probability of flipping tails and rolling a number less than 3
Answer:
5/6
Step-by-step explanation:
There is a 1 out of 2 chance that you will roll tails, so the probability is 1/2.
A number less than three is a 2 and 1, so the probability is 2/6.
Add 1/2 + 2/6. (Change 1/2 to 3/6 so you can add.)
3/6 + 2/6 = 5/6
I hope this is correct and helps you!
Which of the following is the graph of y= log3(x + 2)?
PLEASE ANSWER
Answer:
Correct answer option A.
Step-by-step explanation:
We need to figure out the graph of
\(y= log_3(x + 2)\)
First of all, let us discuss graph of:
\(y=log_3x\)
Putting x = 1 :\(y=log_31 = 0\) (\(\because\) log of 1 is always 0 irrespective of the base)
i.e. point (1, 0) lies on the graph.
And when we put x = 1, the log function tends to -\(\infty\).i.e. \(x\rightarrow 1 \Rightarrow y\rightarrow -\infty\)
Putting x = 3\(y =log_33 = 1\) i.e. point (3, 1) lies on the graph
Graph of logarithmic function is always increasing.
Now, let us consider the graph of \(y= log_3(x + 2)\)
Putting x = -1, \(y= log_3(-1 + 2) = log_31 = 0\) So, the point that lies on graph is (-1, 0)Putting x = 1, \(y= log_3(1 + 2) = log_33 = 1\) So, the point that lies on graph is (1,1).Putting x = -2, \(y= log_3(-2 + 2) = log_30 \rightarrow -\infty\)Please refer to attached graph as well.
Correct answer option A.
The correct option is A, just got it right (:
Express 2x² + 12x + 8 in the form a(a + b)² + c, where a, b and c are
numbers.
What are the values of a, b and c ?
We can write given quadratic expression 2x² + 12x + 8 as 2(x + 3)² - 10
And a = 2, b = 3, c = -10
We have been given an expression 2x² + 12x + 8
We need to write given expression in the form a(a + b)² + c, where a, b and c are numbers.
2x² + 12x + 8
= 2x² + 12x + 18 - 18 + 8
= (√2x + 3√2)² - 10
= (√2)² (x + 3)² - 10
= 2(x + 3)² - 10
Comparing with a(a + b)² + c, where a, b and c are numbers.
a = 2, b = 3 and c = -10
Therefore, we can write given quadratic expression 2x² + 12x + 8 as 2(x + 3)² - 10
And a = 2, b = 3, c = -10
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