y= 4x – 9
y= x - 3
Dnnsbdbdbdbdbdbdbdbbdbdbdbdbdbdbdbdbdbdbbdbdbdbbdbbdbdbbdbdbdbbbd

Answer:

#1. > (13.5 > 12)

#2. >(25 > 20)

#3. 15 * 1/3 = 5

8 * 3/5 = 24/5 or 4.80

5/6 * 8/5 = 4/3 or 1.333

Step-by-step explanation:

I hope this helped!!!

Answer:

0

Step-by-step explanation:

Since you didn't attach an image of the graph I'll have to do this the hard way.

x + 2y = 2  (1)

2x + 4y = -8 (2)

x + 2y = -4 (Divide equation (2) by 2)

0 = 6 (Subtract the third equation from the first)

Since 0 is not equal to 6 the answer is No Solutions.

Answer:

no solutions

Step-by-step explanation:

x+2y=2

2x+4y=−8​

Multiply the first equation by -2

-2x -4y = -4

Add this to the second equation

-2x-4y = -4

2x +4y = -8

--------------------------

0x+0y = -12

0 = -12

This is never true so there are no solutions

A 40 gram sample of a substance that’s used for drug research has a k-value of 0.1472. The substance's half-life, in days, is approximately 4.7 days.

The half-life of a substance is the time it takes for half of the substance to decay or undergo a transformation. The half-life can be determined using the formula:

t = (0.693 / k)

where t is the half-life and k is the decay constant.

In this case, we are given that the sample has a k-value of 0.1472. We can use this value to calculate the half-life.

t = (0.693 / 0.1472) ≈ 4.7 days

Therefore, the substance's half-life, rounded to the nearest tenth, is approximately 4.7 days.

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==========================================================

Work Shown:

x = Ali's share

4x = Pip's share, because it is four times bigger due to the ratio 4:1

x+4x = 5x = total amount of money = 785

5x = 785

x = 785/5

x = 157 dollars is Ali's share

4x = 4*157 = 628 dollars is Pip's share

Note that 157+628 = 785 to help confirm the answer.

Answer:

82.6 pounds per cubic meter

Step-by-step explanation:

Answer:

  about -0.79 mg/hour

Step-by-step explanation:

You want the rate of change of the amount of medication in a patient after 4 hours if the amount after t hours is modeled by y=88/(1+e^(t+0.7)).

The rate of change is found by taking the derivative of the function with respect to time. Let u = 1+e^(t+0.7). Then du/dt = e^(t +0.7).

The function can be written ...

  y = 88/u = 88·u^-1

so its derivative is ...

  dy/dt = (-88·u^-2)·du/dt

  dy/dt = -88(e^(t +0.7))/(1 +e^(t +0.7))^2

The value of the rate of change at t=4 is ...

  dy/dt = -88(e^(4 +0.7))/(1 +e^(4 +0.7))^2 ≈ -88(109.95)/(1 +109.95)^2

  dy/dt ≈ -0.78602 ≈ -0.79 . . . . . . mg/h

The rate of change in the amount of medication is about -0.79 mg/h.

Answer:

D) x>5

Step-by-step explanation:

Answer:

4% change

Step-by-step explanation:

Answer:

12. You just have to add 8+4 to get the distance.

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Subtract the second point from the first point and then take the absolute value

| 8 - (-4)|

|8+4|

12

The distance is 12

If Anna is reading a book that 360 pages and have only read 60 pages In the last 5 days then she has 300 pages left to read.

1. An event that is likely to happen, but not certain, for the number Kenisha calls is that it is a prime number. While there are several prime numbers between 1 and 75, it is not guaranteed that the number she calls will be prime. However, given the range of numbers, the probability of calling a prime number is relatively high.

2. An event that is unlikely to happen, but not impossible, for the number Kenisha calls is that it is a perfect square. Perfect squares are numbers that can be expressed as the square of an integer. In the range of 1 to 75, there are only a few perfect squares, so the chances of calling one as the bingo number are relatively low, but not impossible.

3. An event that is certain to happen for the number Kenisha calls is that it will be an integer. Since the game is played with whole numbers from 1 to 75, the number called will always be an integer, as it represents a specific whole number in the given range.

\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)

♥️ \(\large{\textcolor{red}{\underline{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

The solution is given below.

1. An event that is likely to happen, but not certain, for the number Kenisha calls is that it will be an odd number. Since there are 75 numbers in total and half of them are odd, there is a higher probability that the number called will be odd.

2. An event that is unlikely to happen, but not impossible, for the number Kenisha calls is that it will be a perfect square. There are only a few perfect square numbers between 1 and 75, so the chances of calling a perfect square number are lower compared to other numbers.

3. An event that is certain to happen for the number Kenisha calls is that it will be a number between 1 and 75. Since the numbers in the game range from 1 to 75, any number called by Kenisha will definitely fall within this range.

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Answer: Mean  is the value obtained by dividing the sum of several quantities by their number; an average. Denoting the middle term of a series arranged in order of magnitude. The value which occurs most frequently in a set of data is known as the mode of the set of data.

Step-by-step explanation:

Answer: 18.6

Step-by-step explanation: 15^2= 225

11^2=121, so then we added 225+121= 346, then square root it, and the answer is 18.60, so we need to do it to the nearest tenth is 18.6

Answer:

option number 3

Step-by-step explanation:

day 3 = 1000 sales

day 6 = 2000 sales

day 9 = 3000 sales

30x11 is 330.

300mins

Sorry i'm a little tired, if you want ask me how i got it and show my work in the comments. Thanks u

Answer:

70 i am 100 percent sure

Step-by-step explanation:

1:10

7     70

The equation that can be used to solve for c in the given right triangle is the sine function: c = (3 meters) / sin(50°).

In the given right triangle ABC, we are given that angle ACB is a right angle (90°) and angle CBA is 50°. We also know the length of side AC, which is 3 meters. The length of side CB is denoted by "a," and the length of the hypotenuse AB is denoted by "c." To solve for c, we can use the trigonometric function sine (sin). In a right triangle, the sine of an acute angle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. In this case, we can use the sine of angle CBA (50°) to find the ratio between side CB (a) and the hypotenuse AB (c).

The equation c = (3 meters) / sin(50°) represents this relationship. By dividing the length of side AC (3 meters) by the sine of angle CBA (50°), we can find the length of the hypotenuse AB (c) in meters. Using the given equation, we can calculate the value of c by evaluating the sine of 50° (approximately 0.766) and dividing 3 meters by this value. The resulting value will give us the length of the hypotenuse AB, completing the solution for the right triangle.

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Answer:

f(-2)=g(-2)

Step-by-step explanation:

To solve this problem, we can use a Breadth-First Search (BFS) algorithm to find the shortest path from the starting position to the bottom-right corner of the grid. We start by enqueueing the starting position in a queue and marking it as visited.

To solve this problem, we can use a Breadth-First Search (BFS) algorithm to find the shortest path from the starting position to the bottom-right corner of the grid. We start by enqueueing the starting position in a queue and marking it as visited. Then, we perform a BFS traversal by dequeuing each position from the queue and enqueuing its unvisited neighbors. We repeat this process until we reach the bottom-right corner or the queue becomes empty.

During the BFS traversal, we also keep track of the number of seconds it takes to reach each position from the starting position. If we reach the bottom-right corner within k seconds, we return "Yes". Otherwise, we return "No".

Here's the Python code for the solution:

from collections import deque

def can_reach_end(grid, k):
   rows, cols = len(grid), len(grid[0])
   start = (0, 0)
   q = deque([(start, 0)])
   visited = set([start])

   while q:
       curr_pos, curr_time = q.popleft()

       if curr_pos == (rows-1, cols-1):
           return "Yes"

       for dx, dy in [(0, 1), (0, -1), (1, 0), (-1, 0)]:
           x, y = curr_pos[0]+dx, curr_pos[1]+dy
           if 0 <= x < rows and 0 <= y < cols and grid[x][y] != "#" and (x,y) not in visited:
               visited.add((x,y))
               q.append(((x,y), curr_time+1))

               if curr_time+1 > k:
                   return "No"

   return "No"

# Example usage:
grid = [
   ['?', '?', '#', '?'],
   ['?', '#', '?', '?'],
   ['?', '?', '#', '?'],
   ['?', '?', '?', '?']
]
k = 6
print(can_reach_end(grid, k))  # Output: "Yes"

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After 5 hours, there will be 464 bacteria present.

The growth of bacteria can be represented by the equation B = 58(2)^t, where B represents the number of bacteria and t represents the number of hours. In this case, we need to calculate the number of bacteria after 5 hours.

Substituting t = 5 into the equation, we have:

B = 58(2)^5

B = 58 * 2^5

B = 58 * 32

B = 1,856

Therefore, after 5 hours, there will be 1,856 bacteria present.

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A variable without a clear operational definition can greatly impact the accuracy and reliability of statistics performed on it. To ensure accurate and meaningful results, it is important to have clear, well-defined variables in any research study.

The lack of a clear definition can lead to inconsistencies in data collection, making it difficult to accurately interpret and analyze the results.

Step 1: When a variable has no clear operational definition, researchers may measure or interpret it in different ways, leading to inconsistencies in data collection.

Step 2: These inconsistencies can affect the reliability and validity of the collected data, which in turn impacts the accuracy of the statistical analysis performed.

Step 3: As a result, the findings from such analyses may not accurately represent the true relationships or patterns within the sample or the population, leading to incorrect conclusions.

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Answer:

B -15

Step-by-step explanation:

Answer:

-15

Step-by-step explanation:

she has -15

Answer:

I think true.

Step-by-step explanation:

Step-by-step explanation:

Find the slope /rate of change using the following ordered pair:(8,40) and (6,30)

also

6300

8400

= B= 14056

Answer:

5

Step-by-step explanation:

Calculate the slope , rate of change m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (8, 40) and (x₂, y₂ ) = (6, 30)

m = \(\frac{30-40}{6-8}\) = \(\frac{-10}{-2}\) = 5

Answer:

x = -1/2

Step-by-step explanation:

4 (8x + 4) -20 = -20

=> 32x + 16 -20 = -20

=> 32x - 4 = -20

=> 32x = -20 + 4

=> 32x = -16

=> 32x/32 = -16/32

=> x = -1/2

So, x is -1/2 or -0.5

To simplify 4(8x+4), multiply 4 by 8x and 4.

(4×8x) + (4×4) = 32x and 16

32x + 16 - 20 = -20

Subtract 16 from both sides.

You should end up with 32x - 20 = -36

Add 20 to both sides.

You should end up with 32x = -16

-16 ÷32 = -1/2

x = -1/2

♡ Hope this helps! ♡

❀ 0ranges ❀

Answer:

B) 4(6)+5(6)

Step-by-step explanation:

Normally when you see an expression like this, (4+5)6; I have to evaluate what's in the parentheses first, then solve it.

It can be either way:

6(4)+6(5) or (4)6+(5)6 or 6(4+5) = 6(9) = 54

(24)+(30) (24)+(30) or 6(9) = 54

This is the following of the distributive property, you must multiply the 6 first:

6(4) + 6(5)

You must distribute the 6 to the 4 then the 6 to the 5 in the distributive property law; you need to remember to remove the parentheses by multiplying first before doing the addition or subtraction!

Now you will the same answer in both case; with both approaches.

Answer:

B.

Step-by-step explanation:

6(4)+6(5) or (4)6+(5)6 or 6(4+5) = 6(9) = 54

(24)+(30) (24)+(30) or 6(9) = 54

Answer:

-1152

Step-by-step explanation:

abc² the expression can be rewritten using the given values for each letter

(-3)*6*(-8)^2 now we find the second power of (-8) by multiplying it with itself

(-8)*(-8) = 64

(-3)*6*64 = -1152

Answer:

Contrapositive: if a polygon does not have more than 3 sides, then it is a triangle. Since it is a true statement, the contrapositive is a true statement, the original statement must be a true statement.

Step-by-step explanation:

Original statement: if a polygon has more than three sides, then it is not a triangle.

Let P = a polygon has more than three sides

Let Q = it is not a triangle

Conditional statement: If P, then Q

Contrapositive statement: if not P, then not Q.

If a conditional statement is true, then the contrapositive is true.

If a contrapositive statement is true, then the contrapositive is true