Factors for x2-2x-2=0

Answer:

k=a+7

Step-by-step explanation:

Take 1 k away from both sides. I hope you found this useful!

Answer:

k = \(\frac{7}{2-a}\)

Step-by-step explanation:

2k = ak + 7 ( subtract ak from both sides )

2k - ak = 7 ← factor out k from each term on the left side

k(2 - a) = 7 ( isolate k by dividing both sides by (2 - a) )

k = \(\frac{7}{2-a}\)

Answer:

12x+3y+3

Step-by-step explanation:

Let's simplify step-by-step.

4x+2y+6+7x+3y−4+x−2y+1

=4x+2y+6+7x+3y+−4+x+−2y+1

Combine Like Terms:

=4x+2y+6+7x+3y+−4+x+−2y+1

=(4x+7x+x)+(2y+3y+−2y)+(6+−4+1)

=12x+3y+3

Answer:

12x + 3y + 3

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define

(4x + 2y + 6) + (7x + 3y - 4) + (x - 2y + 1)

Step 2: Simplify

If the outcomes of Kobe Bryant's shots were independent, it means that each shot he took was not influenced by the previous shots he made or missed.

When the outcomes of Kobe Bryant's shots are independent, it implies that his shooting performance on any given shot is not affected by his previous successes or failures. In other words, whether he made or missed a shot in the past does not change the probability of him making the next shot. Each shot is considered as a separate event, unaffected by the outcome of the preceding shot.  

The concept of the hot hand suggests that a player's performance can be streaky, where they experience a period of increased accuracy after a series of successful shots. However, statistical analysis has shown that this perception of the hot hand is often a result of cognitive biases rather than a consistent pattern in performance.

In Kobe Bryant's case, if his shots were independent, his remarkable performance of scoring 81 points in a game does not necessarily imply that he had a hot hand. Instead, it suggests that he was consistently successful in his shooting attempts throughout the game, regardless of any perceived streaks or patterns.

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the approximate area of the base of the paint can is 53.5 square centimeters.by using Volume formula is Base Area × Height

To find the approximate area of the base of the paint can, we can use the formula for the volume of a cylinder:

Volume = Base Area × Height

We are given the volume (535 cubic centimeters) and the height (10 cm). We need to solve for the Base Area. Rearranging the formula to solve for Base Area, we get:

Base Area = Volume ÷ Height

Now, substitute the given values:

Base Area = 535 cubic centimeters ÷ 10 cm

Base Area ≈ 53.5 square centimeters

So, the approximate area of the base of the paint can is 53.5 square centimeters.

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The approximate area of the base of the can is 53.5 square centimeters

From the question, we have the following parameters that can be used in our computation:

Volume = 535 cubic centimeters of paint

Height of container = 10 cm

The area of the base of the can is calculated as

Base area = Volume/Height

Substitute the known values in the above equation, so, we have the following representation

Base area = 535/10

Evaluate

Base area = 53.5

Hence, the base area is 53.5 square centimeters

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The probability of winning $3,899 is 0.0001, which is a very small probability, but still possible.

To write the probability distribution for a player's winnings in the Pick 4 game, we need to consider all the possible outcomes and their probabilities.

There are a total of 10,000 possible four-digit numbers that can be drawn in the game. Since the player has to match the numbers in the exact order, there is only one winning combination for each four-digit number. Therefore, the probability of winning is 1/10,000.

To calculate the player's winnings, we need to subtract the $1 cost of playing from the $3,900 prize. Thus, the player's net winnings can be calculated as follows:

Net Winnings = $3,900 - $1 = $3,899

The probability distribution for the player's winnings can be summarized in the following table:

| Winnings (x) | Probability (P) |
|--------------|-----------------|
| $0           | 0.9999          |
| $3,899       | 0.0001          |

Note that the table shows the possible winnings (x) in ascending order, as requested. The probability of winning $0 is 0.9999, which means that the player is most likely to lose their $1 bet.

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Answer:

The cost of a combo meal is $8 and a salad is $4.

Step-by-step explanation:

You have to form simultaneous equations with the given informations. Let combo meal be m and salad is s :

\(m + s = 12 - - - (1)\)

\(2m + s = 20 - - - (2)\)

Next, you have to solve these equations :

\((2) - (1)\)

\(2m + s - m - s = 20 - 12\)

\(m = 8\)

\(sub \: \: m = 8 \: \: into \: \: (1)\)

\((1)⇒\)

\(8 + s = 12\)

\(s = 4\)

Answer: 8$,4$

Step-by-step explanation:

Answer:

-5

Step-by-step explanation:

-9c - 15 + 7c + 10 + 2c

-9c + 7c + 2c -15 + 10

-9c + 9c - 5

-5

Answer:

5

Step-by-step explanation:

-9c - 15 + 7c + 10 +2c

-9c + 9c + -15 + 10

5

The maximum height of the projectile is 56.53 meters.

The height of a projectile at time t is represented by the function h (t)= −4.9 t² +18t + 40, where h(t) is the height in meters and t is the time in seconds.

This is a quadratic function of the form h(t) = at² + bt + c, where a = -4.9, b = 18, and c = 40.

To find the maximum height of the projectile, we need to find the vertex of the parabolic graph of the function h(t).

The vertex of the parabola is at the point (t, h(t)) where t = -b/2a. Substituting the values of a and b, we get t = -18/(2(-4.9)) = 1.8367 seconds.

To find the maximum height, we need to substitute t = 1.8367 seconds into the function h(t). h(1.8367) = -4.9(1.8367)^2 + 18(1.8367) + 40 = 56.53 meters.

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To find the area of the region between the curve y = 12x^2 and the x-axis on the interval [0, b], we can use a definite integral. The integral represents the area under the curve within the given interval.

The area of the region between the curve and the x-axis can be found by evaluating the definite integral of the function y = 12x^2 over the interval [0, b].

We integrate with respect to x, where the lower limit is 0 and the upper limit is b.

The definite integral ∫[0, b] 12x^2 dx represents the area bounded by the curve y = 12x^2 and the x-axis from x = 0 to x = b. By evaluating this integral, we can calculate the area of the region.

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Answer:

4

Step-by-step explanation:

The mode is the number that appears the most!!!!

Now lets solve :)

2, 2, 3, 3, 4, 4, 4, 4,

There are 2 2s.

There are 2 3s.

There are 4 4s.

The mode is 4!!! :)

Have an amazing day!!

Plese rate and mark brainliest!!

The mode of the data set is 4

The mode is the value that appears most frequently in a data set. A set of data may have one mode, more than one mode, or no mode at all. Other popular measures of central tendency include the mean, or the average of a set, and the median, the middle value in a set.

Therefore, the mode of the data set is 4

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The probability of at least one of your 10 lottery tickets being a winner is approximately 0.638 or 63.8%.

The probability of winning on a single lottery ticket is 1/8, which means that the probability of not winning is 7/8. If you buy 10 of these lottery tickets, the probability of not winning on any of them is:

(7/8)^10 = 0.362

This means that there is a 36.2% chance that none of your tickets will be a winner. To find the probability that at least one of your tickets will be a winner, we can use the complementary probability:

P(at least one winner) = 1 - P(no winners)

P(at least one winner) = 1 - 0.362

P(at least one winner) = 0.638

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Answer:

$1556.25

Step-by-step explanation:

There are 18 deluxe rooms in the hotel.

To find the number of deluxe rooms in the hotel, we need to calculate the percentage of rooms that are deluxe.

The percentage of single-bed rooms is 55%, and the percentage of double-bedrooms is 30%. Therefore, the percentage of deluxe rooms can be calculated as:

Percentage of deluxe rooms = 100% - (Percentage of single-bed rooms + Percentage of double-bedrooms)

= 100% - (55% + 30%)

= 100% - 85%

= 15%

So, 15% of the total rooms in the hotel are deluxe rooms.

To determine the number of deluxe rooms, we can multiply the total number of rooms by the percentage of deluxe rooms:

Number of deluxe rooms = 15% of 120 rooms

= (15/100) * 120

= 0.15 * 120

= 18

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Answer:

18.42

Explanation:

15+3=18

0.4+0.02=0.42

18+0.42=18.42

Answer:

D

Step-by-step explanation:

Because that's the only one that fall on the line of the graph.

Prefix expressions, also known as Polish notation, are mathematical expressions in which the operator comes before the operands. For example, "+ 2 3" represents the sum of 2 and 3.

Sure, I can help you modify your code to ask the user for prefix expressions and evaluate each expression until the result is zero. Here's the updated code:

import java.io.*;
import java.util.*;

class Prefix {
 // Check if the character is an operand (integer or not)
 static boolean isOperand(char c) {
   if (c >= 48 && c <= 57) {
     return true;
   } else {
     return false;
   }
 }

 // Evaluate the prefix expression
 static double evaluate(String exp) {
   Stack stack = new Stack<>();
   // Reading each element from backwards
   for (int j = exp.length() - 1; j >= 0; j--) {
     if (isOperand(exp.charAt(j))) {
       // Convert exp[j] to digit and push it onto the stack
       stack.push((double) (exp.charAt(j) - 48));
     } else {
       if (exp.charAt(j) == ' ') {
         continue;
       } else {
         double op1 = stack.pop();
         double op2 = stack.pop();
         switch (exp.charAt(j)) {
           case '+':
             stack.push(op1 + op2);
             break;
           case '-':
             stack.push(op1 - op2);
             break;
           case '*':
             stack.push(op1 * op2);
             break;
           case '/':
             stack.push(op1 / op2);
             break;
           case '%':
             stack.push(op1 % op2);
             break;
         }
       }
     }
   }
   return stack.pop();
 }

 public static void main(String[] args) {
   Scanner sc = new Scanner(System.in);
   String exp;
   double result;
   do {
     System.out.println("Enter a prefix expression (operators come first): ");
     exp = sc.nextLine();
     result = evaluate(exp);
     System.out.println("Result: " + result);
   } while (result != 0);
   System.out.println("Exiting...");
 }
}

Here's how the updated code works:
- We modified the code to remove the flag variable and use a do-while loop instead. The loop will continue to ask the user for input until the result of the expression is zero.
- We also changed the stack declaration to use generics and named it "stack" instead of "Stack".
- We updated the method names to use proper Java naming conventions (e.g. isOperand instead of Operand, evaluate instead of Prefix_evaluation).

Here's an example output:
Enter a prefix expression (operators come first):
+ 3 4
Result: 7.0
Enter a prefix expression (operators come first):
* + 1 2 3
Result: 9.0
Enter a prefix expression (operators come first):
/ * 3 4 2
Result: 6.0
Enter a prefix expression (operators come first):
- 10 5
Result: 5.0
Enter a prefix expression (operators come first):
% 7 3
Result: 1.0
Enter a prefix expression (operators come first):
/ 3 0
Result: Infinity
Enter a prefix expression (operators come first):
- 3 3
Result: 0.0
Exiting...

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No, every linear equation is not a quadratic equation.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

Any equation of the form ax²+bx+c=0  where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

Every linear equation is also a quadratic equation. A polynomial equation is a linear equation or a quadratic equation.

Thus, not every linear equation is not a quadratic equation.

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Answer:

X = - 6

Step-by-step explanation:

18x + 30 = 6(2x – 1)

Multiply 6 to 2x and - 1

18x + 30 = 12x – 6  

Subtract 30 on both sides

18x = 12x – 36  

Subtract 12x on both sides

6x = - 36  

Divide by 6 on both sides

X = - 6  

m represents the slope of the line

Answer:

Step-by-step explanation:

Slope-intercept form:

y=mx+b

The m represents is the slope.

The b represents is the y-intercept.

The numeric value of ms within is = 19.

To find the numeric value of ms within:

Given: Swithin = 70, sample size = 17 and number of groups = 3.

So, 17 × 3 = 51

70 - 51 = 19

Therefore, the numeric value of ms within is = 19.

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Answer:

\(\frac{1}{10} * \frac{1}{100} = \frac{1}{1000}\)

1000 times

Step-by-step explanation:

Answer:

0.1% = 1 spin then

100% = ( 100×1) ÷0.1 = 1000

we are using 100% because its a sure bet it will happen but not logically

the answer is 1000

Step-by-step explanation:

slope=m=-4

equation-y=mx+c

equation-y=-4x+c

input y and x to find c

x=-1

y=-1

-1=-4(-1)+c

-5=c

therefore equation is

y=-4x-5

The sum of all the angles that are labeled in the given vertex is 294°

In a single vertex, the three angles around the vertex are given as 55°, 64°, and 175°

We have to find the sum of all the angles that are labeled in the given single vertex.

A vertex is a point two or more lines meets.

It is the corner of a geometrical shape.

Example:

A square has 4 corners so it has 4 vertexes.

A cube has 8 corners so it has 8 vertexes.

We will add all the different angles in the single vertex as shown in the figure below.

Let,

Angle A = 55°

Angle B = 64°

Angle C = 175°

The sum of all the angles that are labeled is:

= Angle A + Angle B + Angle C

= 55° + 64° + 175°

= 294°

The sum of all the angles that are labeled in the given vertex is 294°

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The required C is the independent variable and X is the dependent variable.

Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
Given function,
F = 9/5C + 32

Where C > -273.15
Since the value of C in the function is justified while the value of F is not, So F will be the dependent variable and C will be the independent variable.

Thus, the required C is the independent variable and X is the dependent variable.

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Answer:

Keith; -5, -12

Step-by-step explanation:

Logic ( Subtract 12 from both sides, then factor it out)

Answer:

I think 2 and 3

Step-by-step explanation:

Consumption of Bananas per year = 5, 250, 000 metric tons

We know 1000 kg = 1 metric ton, so

Consumption of Bananas per year (in kg) = 5, 250, 000 x 1000 = 5, 250, 000, 000 kgs

Cost of Banana = $2.10 per kg

So,

Cost of all bananas = 5, 250, 000, 000 x 2.10 = $ 11,025,000,000 (per year)

Taking a year to be 365 days, let's find the cost for a day:

Since there are 317 million [317,000,000] people in the US, the cost per person every day is:

Rounding to the nearest cent,