pls pls help whoever gets it right gets marked brainliest
Answer:
13 units
Step-by-step explanation:
\(d=√((x_2-x_1)²+(y_2-y_1)²) \)
\( \sqrt{( - 2 - ( -14)^{2} } + ( - 4 - 1) {}^{2} \)
\( \sqrt{12 {}^{2} } + ( - 5) {}^{2} \)
\( \sqrt{169} \)
= 13 Unitshelp can you help me I need your help please help me solve that I would really appreciate it
The factor form of the quadratic equations are listed below:
Case 13: (b - 4) · (b - 2)
Case 14: (n + 4) · (n + 2)
Case 15: 2 · (n + 9) · (n - 6)
Case 16: 5 · (n + 2)²
Case 17: 2 · (k + 5) · (k + 6)
Case 18: (a - 10) · (a + 9)
Case 19: (p + 10) · (p + 1)
Case 20: 5 · (v - 2) · (v - 4)
Case 21: 2 · (p + 2) · (p - 1)
Case 22: 4 · (v - 2) · (v + 1)
Case 23: (x - 10) · (x - 15)
Case 24: (v - 5) · (v - 2)
Case 25: (p + 6) · (p - 3)
Case 26: 6 · (v + 10) · (v + 1)
How to factor a quadratic equation
In this problem we find quadratic equations of the form a · x² + b · x + c, whose factor form is introduced below:
a · x² + b · x + c = a · x² + a · (- r₁ - r₂) · x + a · r₁ · r₂ = a · (x - r₁) · (x - r₂)
Where r₁, r₂ are real roots.
Now we proceed to present the factor form of each quadratic equation:
Case 13
b² - 6 · b + 8 = (b - 4) · (b - 2)
Case 14
n² + 6 · n + 8 = (n + 4) · (n + 2)
Case 15
2 · n² + 6 · n - 108 = 2 · (n² + 3 · n - 54) = 2 · (n + 9) · (n - 6)
Case 16
5 · n² + 10 · n + 20 = 5 · (n² + 2 · n + 4) = 5 · (n + 2)²
Case 17
2 · k² + 22 · k + 60 = 2 · (k² + 11 · k + 30) = 2 · (k + 5) · (k + 6)
Case 18
a² - a - 90 = (a - 10) · (a + 9)
Case 19
p² + 11 · p + 10 = (p + 10) · (p + 1)
Case 20
5 · v² - 30 · v + 40 = 5 · (v² - 6 · v + 8) = 5 · (v - 2) · (v - 4)
Case 21
2 · p² + 2 · p - 4 = 2 · (p² + p - 2) = 2 · (p + 2) · (p - 1)
Case 22
4 · v² - 4 · v - 8 = 4 · (v² - v - 2) = 4 · (v - 2) · (v + 1)
Case 23
x² - 15 · x + 50 = (x - 10) · (x - 15)
Case 24
v² - 7 · v + 10 = (v - 5) · (v - 2)
Case 25
p² + 3 · p - 18 = (p + 6) · (p - 3)
Case 26
6 · v² + 66 · v + 60 = 6 · (v² + 11 · v + 10) = 6 · (v + 10) · (v + 1)
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Triangle ABC is dilated with center (0,0) with a scale factor of 1.5.
А
C
B
What are the new coordinates of Point C?
Answer:
(- 3.5, 0 )
Step-by-step explanation:
since the dilatation is centred at the origin then multiply each coordinate by the scale factor of 1.5 , that is
C (- 2, 0 ) → C' (- 2 × 1.5 , 0 × 1.5 ) → C' (- 3, 0 )
f(x) = 3x – 4, what is x if f(x) = 5
Answer: i think its x = 3
A squared garden has area 1764 m². Find its length and perimeter.
Answer:
We know that,
★ Area of Square = ( Side )² ★
Given:
Area of Squared garden is 1764 m².
To Find:
It's Length & Perimeter➛ Side = √1764
➛ Side = 42
Thus, Side of Squared garden is 42cm.We know,
★ Perimeter of Square = 4 × Side ★
Given:
Side is 42 cm.➛ Perimeter = 4 × 42
➛ Perimeter = 168
Thus, Perimeter of Squared garden is 168cm.Helppp meee please this one confuses me
Step-by-step explanation:
=\( =(3x + 2)(x + 1) \\ = 3x(x + 1) + 2(x + 1) \\ = {3x}^{2} + 3x + 2x + 2 \\ = {3x}^{2} + 5x + 2\)
Answer:
Bro really?? Anyway it's
\(anyway \: its \: 3x { }^{2} + 3x + 2x + 2\)
Find the volume of the sphere.
Either enter an exact answer in terms of π or use 3.14 for π and round your final answer to the nearest hundredth.
Answer:
Volume of a sphere = 4πr³/3
r=10
V = 4πx10³/3
=4000π/3
V= 1333.33π (in terms of pi)
or
V= 4188.79(Nearest Hundredth).
A car travelling at a constant speed travels 60 km 30 minutes .how far will it travel in 2hrs,if it continues at the same constant speed
Answer: 240 miles in 2 hours
Step-by-step explanation:
we know the car is traveling 60 km per half hour (30 minutes)
so to find km per hour, multiply both by 2.
the rate of speed is 120 miles per 60 minutes (1 hour)
multiply 120 mph by the 2 hours given = 240 miles in 2 hours
Answer:
240 km in 2 hours
Step-by-step explanation:
If the car travels 60 km in 30 minutes, then its speed can be calculated as follows:
Speed = distance ÷ time
Speed = 60 km ÷ (30 minutes ÷ 60) = 120 km/hour
Since the car is traveling at a constant speed, we can use the formula:
Distance = Speed × Time
To find how far the car will travel in 2 hours, we can substitute the values we have found:
Distance = Speed × Time
Distance = 120 km/hour × 2 hours
Distance = 240 km
Therefore, the car will travel 240 km in 2 hours if it continues at the same constant speed.
6. khaliq has 2 bags of cornmeal that each contain 25 servings. one serving
is cup khalid is making muffins that require 2.5 cups of cornmeal per
batch. what is the maximum number of batches of muffins that khalid
can make using the cornmeal?
b) 15
(a) 7
(c) 18
(d) 37
Khalid can make a maximum of 7 batches of muffins using the available cornmeal because he only has 2 bags of cornmeal, and each bag provides 25 cups. Hence, the correct answer is (a) 7.
To calculate the maximum number of batches, we need to consider the total amount of cornmeal available and the amount required per batch. Khalid has 2 bags of cornmeal, with each bag containing 25 servings. Since one serving is equivalent to one cup, each bag has 25 cups of cornmeal.For each batch of muffins, 2.5 cups of cornmeal are required. Therefore, to determine the maximum number of batches, we divide the total amount of cornmeal by the amount required per batch: 25 cups / 2.5 cups per batch = 10 batches.
However, Khalid can only make a maximum of 7 batches because he only has 2 bags of cornmeal, and each bag provides 25 cups. Hence, the correct answer is (a) 7
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Apply the distributive property to the expression 24x + 18y to produce the equivalent expression.
(HINT: You need to complete factoring using the GCF)
Answer:
6(4x+3y)
Step-by-step explanation:
24 and 18 have a HCF of 6, so yeah
Connor is a 400m runner His median time is
Answer: 57.8
Step-by-step explanation:48.7 seconds + 49.3 seconds.= 57.8
the price of 1 lb of potatoes is $1.75. if all the potatoes sold today at the store bring in $1420, how many kilograms of potatoes did grocery shoppers buy?
Total pounds of potatoes sold = $1420 / $1.75 = 811.43 lbs. Converting to kilograms: 811.43 lbs * 0.4536 kg/lb = 368.23 kg. Grocery shoppers bought approximately 368.23 kg of potatoes.
To determine the number of kilograms of potatoes grocery shoppers bought, we need to convert the total weight from pounds to kilograms.
First, let's find out how many pounds of potatoes were sold:
Total sales = $1420
Price per pound = $1.75
Number of pounds of potatoes sold = Total sales / Price per pound
Number of pounds of potatoes sold = $1420 / $1.75
Number of pounds of potatoes sold = 811.43 pounds (approximately)
Now, to convert pounds to kilograms, we know that 1 pound is approximately 0.4536 kilograms.
Number of kilograms of potatoes sold = Number of pounds of potatoes sold * 0.4536
Number of kilograms of potatoes sold = 811.43 pounds * 0.4536
Number of kilograms of potatoes sold = 368.23 kilograms (approximately)
Therefore, grocery shoppers bought approximately 368.23 kilograms of potatoes.
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solve for n. 15n / 15 = 549 / 15
Answer:n the answer is −15
n=0
Step-by-step explanation:
i hope you get it right.
BRAINLIEST.... PLS ASAP
Who took tiny pieces of mail across country over a hundred years ago?
The estimated number of pieces of mail are sent each year worldwide is equal to 425 billion.
Percent of world's total mail US Postal Service handles = 40% .
Let X be the total number of pieces of mail sent worldwide each year.
The US Postal Service handles pieces of mail each year = 170,000,000,000 .
Which is equal to 40% of X.
Required equation for the estimated data we have,
170,000,000,000 = 0.4X
Solve for X.
Divide both sides of the equation by 0.4 we get,
⇒ X = 170,000,000,000 / 0.4
⇒ X = 425,000,000,000
Therefore, it is estimated that approximately 425 billion pieces of mail are sent each year worldwide.
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The given question is incomplete, I answer the question in general according to my knowledge:
The U.S postal service handles 170,000,000,000 pieces of mail each year. this is 40% of the worlds total. How many pieces of mail are sent each year?
PLEASE HELP!!!
The population of a town increases by 3% each year. If its population today is 25,000, what will its population be in 5 years?
A 25,000 (1.03)
B 25,000-(1.03)5
25,000-(0.03)
25,000 (1.03) - (5)
The population of the town in 5 years will be approximately 28,982.
What is exponential growth?A data pattern known as exponential growth exhibits faster expansion over time. Compounding generates exponential profits in finance. Exponential growth is possible in savings accounts with a compounding interest rate. Compound returns in finance lead to exponential development. One of the most potent forces in finance is the power of compounding. With the help of this idea, investors may generate sizable sums with little start-up money. Compound interest savings accounts are typical instances of exponential development.
Given that, population of a town increases by 3% each year.
The population after 5 years is calculated by:
Population in 5 years = Initial population x (1 + rate) raised to time.
That is,
Population in 5 years = 25,000 x (1 + 0.03)⁵
Population in 5 years = 25,000 x 1.159274
Population in 5 years = 28,981.85
Hence, the population of the town in 5 years will be approximately 28,982.
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Find the equation for the plane through perpendicular to the following line. x, y, z, t
The equation of the plane is ⟨0, 0, -xt, -y⟩. ⟨(x-1), y, z, t⟩ = 0.
Given that the equation for the line is x, y, z, t.
The equation for the plane perpendicular to the given line can be calculated as follows:
Firstly, we know that the vector which is perpendicular to both the line and the plane is the direction of the plane.
Hence the direction of the plane is the cross product of the vector with the given line direction:⟨1, 0, 0, 0⟩ × ⟨x, y, z, t⟩= ⟨0t - 0z, 0z - 0t, 0y - xt, 0x - y⟩= ⟨0, 0, -xt, -y⟩Hence the direction of the plane is ⟨0, 0, -xt, -y⟩.
Now, we need to find any point (x0, y0, z0, t0) on the plane.
Let's assume that the point is (1, 0, 0, 0) since it lies on the line.
Then the equation of the plane can be obtained as:⟨0, 0, -xt, -y⟩ .
⟨(x-x_0), (y-y_0), (z-z_0), (t-t_0)⟩ = 0⟨0, 0, -xt, -y⟩ . ⟨(x-1), y, z, t⟩ = 0
The equation of the plane perpendicular to the line x, y, z, t is given as ⟨0, 0, -xt, -y⟩. ⟨(x-1), y, z, t⟩ = 0.
Therefore, the equation of the plane is ⟨0, 0, -xt, -y⟩. ⟨(x-1), y, z, t⟩ = 0.
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“Identify the height of the parallelogram” Would the height be 7 Inches? It’s just what i got, but i want to make sure it’s right. if it’s not right, i need help then
Solution:
Given the parallelogram below:
According to the properties of a parallelogram, the opposite sides are parallel and equal in dimensions.
Thus,
\(\begin{gathered} AD=BC \\ and \\ AB=DC \end{gathered}\)A) Height of the parallelogram:
The length BE is the height of the parallelogram, which is evaluated using the Pythagorean theorem.
According to the Pythagorean theorem,
\(\begin{gathered} (BC)^2=(BE)^2+(EC)^2 \\ \end{gathered}\)Where
\(\begin{gathered} BC=9 \\ BE=h \\ EC\text{ is unknown} \end{gathered}\)To evaluate h, we need to determine the value of EC.
Recall that
\(\begin{gathered} AB=DC \\ where \\ DC=DE+EC \\ \Rightarrow AB=DE+EC \end{gathered}\)Thus, we have
\(\begin{gathered} 9=6+EC \\ subtract\text{ 6 from both sides of the equation} \\ 9-6=6-6+EC \\ \Rightarrow EC=3\text{ in.} \end{gathered}\)We can now determine the value of h.
From the Pythagorean theorem,
\(undefined\)A pendulum clock is a clock that uses a swinging weight (a pendulum) as its
time-keeping element. At t=0 s, the pendulum is 5 cm to the right of the
resting position (+5 cm). At t= 2 s, the pendulum is 5 cm to the left of the
resting position (-5 cm).
a) Determine the equation of the sinusoidal function that describes the distance
of the pendulum from its resting position in terms of time.
Answer: x(t) = 5cm*cos(t*pi/2s)
Step-by-step explanation:
This is a sinusoidal equation, so we can write this as:
x(t) = A*cos(c*t + p) + B
where B is the axis around the movement, as the resting position is x = 0, we have B = 0
so x(t) = A*cos(c*t + p)
A is the amplitude of the oscilation, c is the frequency and p is a phase.
We know that when t = 0s, we have x(2s) = 5cm
if this is the maximum displacement, then knowing that the maximum of the cosine is cos(0) = 1
then we must have that p = 0
x(0s) = A*cos(0) = 5cm
then we have A = 5cm
Now, when t = 2s, we have:
x(2s) = 5cm*cos(2s*c) = -5cm
then 2s*c is the minimum of the cos(x) function, this is:
cos(pi) = -1
then 2s*c = pi
c = pi/2s.
then our function is:
x(t) = 5cm*cos(t*pi/2s)
part 2 help? I’ll mark brainliest if correct
Answer:
Draw a line segment, say 5 cm long.
Below it draw a line segment 10 cm long, or whatever is twice the length!
Hope that helps!
Step-by-step explanation:
Find the measure of x.
30
х
25°
X =
= [?
Round your answer to the nearest hundredth.
Answer:
12.68
Step-by-step explanation:
The relevant trig relation is ...
Sin = Opposite/Hypotenuse
In this instance, we have ...
sin(25°) = x/30
x = 30·sin(25°)
x ≈ 12.68
after preparing a horizontal analysis of Blanchet
corporations balance sheet for 2019, what are some observations you
can make?
Overall, the horizontal analysis of Blanchet Corporation's balance sheet for 2019 suggests positive growth and financial stability.
There has been a significant increase in total assets from the previous year. This indicates potential growth and expansion in the company's operations.
The liabilities have also increased, but not at the same rate as the assets. This suggests that the company may have taken on additional debt or financing to support its growth.
The retained earnings have shown a positive trend, indicating that the company has been profitable and able to retain a portion of its earnings for reinvestment or future use.
The equity section has also grown, which can be attributed to the increase in retained earnings and potentially additional capital investments.
The increase in assets and retained earnings indicates the company's ability to generate profits and reinvest in its operations. However, the increase in liabilities should be carefully monitored to ensure it is manageable and sustainable in the long term.
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Point A has coordinates (-2 , -10), and point B has coordinates (2 , 6). What is the slope of a line segment connecting the two
the slope of the line segment connecting point A and point B is 4. The positive value indicates that the line segment is sloping upward from left to right.
The slope of a line segment can be calculated using the formula:
slope = (change in y)/(change in x)
Given the coordinates of point A (-2, -10) and point B (2, 6), we can calculate the change in y and change in x as follows:
Change in y = y-coordinate of point B - y-coordinate of point A = 6 - (-10) = 16
Change in x = x-coordinate of point B - x-coordinate of point A = 2 - (-2) = 4
Now we can substitute the values into the slope formula:
slope = (change in y)/(change in x) = 16/4 = 4
Therefore, the slope of the line segment connecting point A and point B is 4. The positive value indicates that the line segment is sloping upward from left to right.
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Which expression is negative?
Answer:
B
Step-by-step explanation:
since the value is above 1 and your subtracting 1 to drop the value below the 0 point below making it negative.
what is the area of the figure in square mm
Answer:
8125 mm
Step-by-step explanation:
Not that sure
C++ PLEASE,
The Fibonacci numbers are the numbers in the following integer sequence: 0, 1, 1, 2, 3, 5…
You can find the nth Fibonacci numbers by adding the last two digits before n.
Remember:
F (0) = 0 and F (1) =1
F(n)=F(n-1) +F(n-2) for n>1
Tasks
Write the first natural solution that you find to the problem (an inefficient algorithm) and implement it to find nth number of Fibonacci number F(n)
Write an efficient algorithm and implement it to find nth number of Fibonacci number F(n)
Record the time it takes to execute 120th Fibonacci number on both algorithms
Fill out the report sheet, compare and explain your results
The provided C++ code includes two algorithms to find the nth Fibonacci number: an inefficient recursive approach and an efficient iterative approach. The execution times for finding the 120th Fibonacci number can be compared to analyze the performance difference between the two algorithms.
Here's the C++ code to solve the Fibonacci number problem using both an inefficient and an efficient algorithm. We'll also measure the execution time for finding the 120th Fibonacci number using both approaches.
1. Inefficient Algorithm (Recursive Approach):```cpp
#include <iostream>
int fibonacci(int n) {
if (n <= 1)
return n;
else
return fibonacci(n - 1) + fibonacci(n - 2);
}
int main() {
int n = 120;
// Measure execution time
clock_t startTime = clock();
int result = fibonacci(n);
clock_t endTime = clock();
double elapsedTime = double(endTime - startTime) / CLOCKS_PER_SEC;
std::cout << "Fibonacci(" << n << ") = " << result << std::endl;
std::cout << "Execution time: " << elapsedTime << " seconds" << std::endl;
return 0;
}
```
2. Efficient Algorithm (Iterative Approach):```cpp
#include <iostream>
int fibonacci(int n) {
int prev = 0;
int curr = 1;
for (int i = 2; i <= n; i++) {
int temp = curr;
curr += prev;
prev = temp;
}
return curr;
}
int main() {
int n = 120;
// Measure execution time
clock_t startTime = clock();
int result = fibonacci(n);
clock_t endTime = clock();
double elapsedTime = double(endTime - startTime) / CLOCKS_PER_SEC;
std::cout << "Fibonacci(" << n << ") = " << result << std::endl;
std::cout << "Execution time: " << elapsedTime << " seconds" << std::endl;
return 0;
}
```
Note: Both algorithms assume the Fibonacci sequence starts with F(0) = 0 and F(1) = 1.
After executing the programs, you can compare the execution times and fill out the report sheet with the results.
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Which statement is correct? O a. Dynamic discounting helps buyers to reduce their cash conversion cycle O b. Dynamic discounting helps suppliers to reduce their cash conversion cycle O c. Dynamic discounting helps suppliers to extend their payment terms O d. Dynamic discounting helps suppliers to increase their margin
The statement that is correct is (a), i.e., Dynamic discounting helps buyers to reduce their cash conversion cycle.
Dynamic discounting is a financial technique that enables suppliers to get paid faster by offering buyers early payment incentives, such as discounts, in exchange for early payment.
It works by allowing buyers to pay their invoices early in return for a discount, which benefits both parties.
The supplier is paid sooner, and the buyer gets a discount on the invoice price, resulting in reduced costs for both sides.
A shorter cash conversion cycle implies that a business is more efficient, which is good for its bottom line.
Thus, a) is the correct option, i.e., dynamic discounting helps buyers to reduce their cash conversion cycle.
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If you know the names of the remaining students in the spelling bee, what is the probability of randomly selecting an order and getting the order that is used in the spelling bee?.
The probability of randomly selecting an order and getting the order that is used in the spelling bee is 0.001388888
Given we have the following:
Number of students in the spelling bee = 6
Number of ways selecting a student in the spelling bee = 6!
The probability of randomly selecting an order and getting the order that is used in the spelling bee :
P(selecting the correct spelling bee order) = 1/6!
= 1/6*5*4*3*2*1
= 1/720
= 0.001388888
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5% of a number is 231%of the same number is 4. 6work out 16%of the number
Answer:
23
Step-by-step explanation:
Lana had 475 Pokemon cards. She gave her little brother 125 of her cards. What percentage of her cards did Lana give away?
So, Lana gave away 26.32% of he Pokemon cards to her little brother.
To find the percentage of cards Lana gave away, we can use the formula:(Quantity given away / Total quantity) * 100.
In this case, Lana gave away 125 cards out of her total collection of 475 cards.Plugging these values into the formula, we have:
(125 / 475) * 100 = 0.2632 * 100 = 26.32%.
Lana gave away 26.32% of her Pokemon cards to her little brother.
Alternatively, we can calculate the percentage by subtracting the remaining cards from the total and finding the ratio:
Percentage given away
= (Cards given away / Total cards) * 100
= (125 / 475) * 100
= 26.32%.
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