Answer:
A^2 + b^2 = c2
Step-by-step explanation:
Where the longest side length is the hypotenuse, or c.
9^2 + 40^2 = 41^2
81 + 1600 = 1681.this is a true statement, therefore "yes"
121 + 3600 = 3844 this is not a true statement, "no"
2304 + 3025 = 5329 "yes"
solve for m please will give brainlest
Answer:
55 degrees
Step-by-step explanation:
sum of all angles of a triangle equal 180
to find x we add them all and set them equal to 180
(57+x)+(72+x)+55=180
129+2x+55=180
184+2x=180
-184. -184
2x= -4
/2. /2
x=-2
now to find angle A
57+(-2)
55
hopes this helps
simplify the following (-3x³y²z)4
Answer:negative 12 x cubed y squared z
Step-by-step explanation: So it would be -12^2y^2z
Find eight different simplified two-level gate circuits to realize
(a) F(w, x, y, z) = (x + y′ + z)(x′ + y + z)w
(b) F(a, b, c, d) = Σ m(4, 5, 8, 9, 13)
The different simplified two-level gate circuits are as follows:
F(a, b, c, d) = (a'c)(b'd) + (ac)(bd') + (ab'c') + (ab'd') + (a'b'c') + (a'b'd) + (a'bc') + (a'b'd')
(a) F(w, x, y, z) = (x + y′ + z)(x′ + y + z)w
From the expression F(w, x, y, z) = (x + y′ + z)(x′ + y + z)w, the truth table can be derived.
Then Karnaugh Maps (K-map) can be applied to make the equations smaller.
In order to make the equations smaller, there are eight different simplified two-level gate circuits that can be used.
K-Map for (a):
The K-Map above is created for the given function F(w, x, y, z). This K-Map is used to create Boolean equations using the following steps:
1. Combine 1’s wherever possible to get two terms of two variables.
2. There are eight possible combinations of two variable equations.
3. Put these two-variable equations with a common variable together to get four-variable equations.
4. Finally, use the K-Map again to create two-variable equations to use in two-level gate circuits.
The different simplified two-level gate circuits are as follows:
F(w, x, y, z) = (w'z)(xy') + (wz')(x'y) + (wz)(x + y') + (wx)(y + z') + (wx')(y' + z) + (wy)(x + z') + (wy')(x' + z) + (w'x'z)(y + z)
(b) F(a, b, c, d) = Σ m(4, 5, 8, 9, 13)
The given expression F(a, b, c, d) = Σ m(4, 5, 8, 9, 13) can be simplified by using Karnaugh Maps to make the equations smaller. There are eight different simplified two-level gate circuits that can be used for the simplified expressions. K-Map for (b):
The K-Map above is created for the given function F(a, b, c, d). This K-Map is used to create Boolean equations using the following steps:
1. Combine 1’s wherever possible to get two terms of two variables.
2. There are eight possible combinations of two variable equations.
3. Put these two-variable equations with a common variable together to get four-variable equations.
4. Finally, use the K-Map again to create two-variable equations to use in two-level gate circuits.
The different simplified two-level gate circuits are as follows:
F(a, b, c, d) = (a'c)(b'd) + (ac)(bd') + (ab'c') + (ab'd') + (a'b'c') + (a'b'd) + (a'bc') + (a'b'd')
Know more about two-level gate circuits here:
https://brainly.com/question/31230669
#SPJ11
what’s pi? (i actually kno what it is i’m jus bored lol)
Answer:
3.14159 and so on
Step-by-step explanation:
HELP ASAP PLEASE
Four increased by the product of a number and 6 is at most 26.
Use the variable x for the unknown number.
The unknown number (x) must be less than or equal to 11/3 to satisfy the given condition.
The question is asking for an inequality using a variable, that represents the given situation. We are given that four increased by the product of a number (x) and 6 is at most 26. The inequality that represents this is:
4 + 6x ≤ 26
This inequality states that when you multiply a number (x) by 6, add 4 to the product, the result should be less than or equal to 26. To solve for x, you can follow in detail these steps:
1. Firstly, subtract 4 from both sides: 6x ≤ 22
2. Then secondly, divide both sides by 6: x ≤ 22/6 or x ≤ 11/3
So, the unknown number (x) must be less than or equal to 11/3 to satisfy the given condition and this is the final answer.
Learn more about variable brainly.com/question/17344045
#SPJ11
please help me very fast
Answer:
multiply 7 by 60,because each hours has 60 munites
Hours minutes per hours. total minutes
(hrs*minutes per hour)
2. 60. 120
3 60. 180
4. 60. 240
7 60. 420
Use the 30-60-90 triangle theorem to find the answer. Find the value of x. 5 60 y x
The value of x is 15.
In a 30-60-90 triangle, the sides are within the ratio 1:√3:2.
We recognize that one angle of this triangle is 60 stages and the side opposite to it is y. therefore, the aspect adjacent to 60 degrees (that is opposite to 30 degrees) is y/√3, and the hypotenuse is 2y.
So, comparing this to the given triangle, we are able to see that:
y/√3 = 5
Multiplying both sides by √3, we get:
y = 5√3
And we are able to locate x by using the ratio 1:√3:2:
x = √3y = √3(5√3) = 15
Thus , the value of x is 15.
Learn more about 30-60-90 triangl:-
https://brainly.com/question/30283450
#SPJ4
Find the exact value of the expression, if it is defined. (If an answer is undefined, enter UNDEFINED.)tan(sin−1(1/2))
The exact value of the expression tan(sin⁻¹(1/2)) is 1/√3.
To find the exact value of the expression tan(sin⁻¹(1/2)).
1. First, we need to find the angle θ whose sine is 1/2. This means sin(θ) = 1/2.
2. We know that sin(30°) = 1/2, so θ = 30° (or π/6 in radians).
3. Now, we need to find the tangent of this angle, which is tan(θ).
4. We know that tan(θ) = sin(θ)/cos(θ).
5. Using the given information, sin(θ) = 1/2, and we need to find cos(θ).
6. We can use the Pythagorean identity: sin²(θ) + cos²(θ) = 1.
7. Plugging in sin(θ), we have (1/2)² + cos²(θ) = 1.
8. Solving for cos²(θ), we get cos²(θ) = 1 - (1/4) = 3/4.
9. Taking the square root, we find cos(θ) = √(3/4) = √3/2.
10. Finally, we compute tan(θ) = (1/2) / (√3/2) = 1/√3.
So, the exact value of the expression tan(sin⁻¹(1/2)) is 1/√3.
To know more about expression refer here:
https://brainly.com/question/28170201
#SPJ11
Can someone tell me the time please
Answer:
the time here in this picture is 7 h and 20 min
Simplify the expression 2/3+1/2(8+3 1/4)
Answer:
Step-by-step explanation:
2 + 1 ( 8 + 3 * 1/4 )
ـــــــــــــــ
3 + 2
=
2*2 + 1*3
ـــــــــــــــ
3*2 + 2*3
1
1 ــــــــــ
6
8 + 3 * 1/4
3 * 1
1 * 4
=
3/4
8*4 + 3
1*4 + 4
32 + 3
4 + 4
3
8 ـــــــــ
4
1 1/6 * 8 3/4
THE ANSWER
5
10 ـــــــ
24
what values of b and c make WXY congruent to FEG in
The Hypotenuse-Leg Theorem states that two right triangles are congruent if and only if the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and a leg of the other right triangle.
From this theorem, we know that corresponding sides must be equal for those triangles to be congruent. Then, we get two equations
\(\begin{gathered} c-2=2c-22 \\ 4b+18=b+48 \end{gathered}\)Let's start solving the equation for b.
\(4b+18=b+48\)We can start by subtracting 18 from both sides of the equation
\(\begin{gathered} 4b+18-18=b+48-18 \\ 4b=b+30 \end{gathered}\)Now, we can subtract b from both sides.
\(\begin{gathered} 4b-b=b+30-b \\ (4-1)b=30 \\ 3b=30 \end{gathered}\)And finally, dividing both sides by 3 we have
\(\begin{gathered} \frac{3b}{3}=\frac{30}{3} \\ b=10 \end{gathered}\)Now we have our b value. b = 10. Now, let's calculate the value for c.
\(c-2=2c-22\)We can start by adding 22 to both sides of the equation
\(\begin{gathered} c-2+22=2c-22+22 \\ c+20=2c \end{gathered}\)Now, we can just subtract c from both sides to get our value
\(\begin{gathered} c+20-c=2c-c \\ 20=(2-1)c \\ c=20 \end{gathered}\)Then, we have our c value, c = 20.
The ale price of every item in a tore i 85% of it regular price
1. The regular price of a backpack i $30 what’ it’ ale price?
2. The ale price of a occer ball i $15. 30 what’ it regular price?
3. The ale price of a jacket i $21. 08 what’ it regular price?
The sale price of the backpack is $25.5, the sale price of the soccer ball is $13.005, and the sale price of one jacket is 17.918.
Given:
The sale price of every item in a store is 85 percent of its regular price.
1. The regular price of a backpack is $30.
Then, the sale price = 85% of (the regular price of a backpack )
= 0.85 x ($30)
= $25.5
Hence, the sales price of the backpack = $25.5
2. The regular price of a soccer ball is = $15.30
The sale price of the soccer ball is 85% of its regular price.
Therefore, the sale price = 85% of $15.30
= $13.005
So, the sale price of the soccer ball is $13.005.
3. The regular price of a jacket is $21. 08
The sale price of a jacket is 85% of its regular price.
Therefore, the sale price = 85% of $21. 08
= $17.918
So, the sale price of a jacket is $17.918.
To learn more about the sale price visit: https://brainly.com/question/11700622
#SPJ4
an unfair/biased die is considered as an even number is twice as likely to occur as an odd number, phenomena is called
The probability of an even number is twice as likely to occur as an odd number is 2/9 and 1/9 respectively.
Probability in math term is defined as a number that reflects the chance or likelihood that a particular event will occur.
Here we have given that an unfair/biased die is considered as an even number is twice as likely to occur as an odd number.
And here we need to find the probability of the event.
Here let us consider that probability of getting an even number = x and let probability of getting odd number = y
Then it can be written as
=> 3x+3y=1
Here we write it as because probability of getting even number or odd number = 1 since those two are the only possibilities.
Then we have to apply the value of x=2y (given)
Now, we have to solve these two, then we get,
=> x=2/9 and y=1/9
To know more about Probability here.
https://brainly.com/question/11234923
#SPJ4
what is the value of the expression 3^{2}*(2^{3} +4)-22
Answer:
86
Explanation:
3² × (2³ + 4) - 22
9 × (8 + 4) - 22
9 × 12 - 22
108 - 22
86
x^4+13x^2+36=4x^3+36
Answer:
Step-by-step explanation:
x^4+13^x^2+36=4x^3+36
4x+26x+36=4x^3+36
30x+36=12x+36
30x=12x
so,x=1
John has been in the hospital for three days. He is stable but not showing any significant improvement. John’s mom receives a call from her brother, who has a farm a little over 200 miles from them, where he raises pasture-reared pigs. He tells his sister that brucellosis has been diagnosed at his farm, and brucellosis can infect people. He reminds her that over the Thanksgiving holidays when they visited that John helped to pull some stillborn piglets from the birth canal of a sow experiencing a difficult labor (dystocia). Could John have brucellosis? She thanks her brother and immediately goes to find someone to give them this information.
The doctors request that the standard tube agglutination (STA) test for Brucella spp. is run on John’s previously collected and banked serum and CSF samples. The STA is a quick screening test. Currently, there is no growth on any culture plates streaked with CSF from John, but Brucella spp. are slow-growers and it is too early to expect any growth.
The request also alerts the diagnostic laboratory that samples from John may be infected with Brucella spp. and additional precautions should be observed to prevent laboratory personnel from inadvertently becoming infected.
Based on the additional history and clinical presentation, a probably diagnosis of brucellosis is made, and John begins treatment with a combination of three antibiotics demonstrated to be efficacious against Brucella spp.
:: we don't know the antibiotic. most probably common ones
Multiple interactions are occurring in a very short
In this scenario, multiple interactions are occurring within a very short period, each with unique dynamics and ramifications for the individuals involved.
The interactions are as follows: John's uncle called his mother to inform her of an outbreak of brucellosis at his farm, which John may have contracted while helping with a difficult labor case of a sow experiencing dystocia. His mother then contacts the hospital's doctor with this information, requesting that they screen John for brucellosis using a quick screening test called the standard tube agglutination (STA) test.
After the doctor receives the request, additional precautions are taken to prevent the spread of Brucella spp. to the lab staff. The STA test is run on John's previously collected and banked serum and CSF samples. Based on the additional history and clinical presentation, a probable diagnosis of brucellosis is made, and John begins treatment with a combination of three antibiotics that are effective against Brucella spp.
The dynamics of these interactions are centered on the shared concern for John's health and safety, and the potential for Brucella spp. to infect other hospital staff, diagnostic lab personnel, and even family members who came into contact with him.
The ramifications for the participants are numerous, from the need for additional laboratory safety precautions to the psychological effects of being diagnosed with a rare disease. Additionally, John's family will need to be informed of the diagnosis and potential risks, and his uncle's farm may face financial losses and reputational damage due to the outbreak of brucellosis.
To know more about dynamics refer here:
https://brainly.com/question/11763832#
#SPJ11
Complete Question:
John has been in the hospital for three days. He is stable but not showing any significant improvement. John’s mom receives a call from her brother, who has a farm a little over 200 miles from them, where he raises pasture-reared pigs. He tells his sister that brucellosis has been diagnosed at his farm, and brucellosis can infect people. He reminds her that over the Thanksgiving holidays when they visited that John helped to pull some stillborn piglets from the birth canal of a sow experiencing a difficult labor (dystocia). Could John have brucellosis? She thanks her brother and immediately goes to find someone to give them this information.
The doctors request that the standard tube agglutination (STA) test for Brucella spp. is run on John’s previously collected and banked serum and CSF samples. The STA is a quick screening test. Currently, there is no growth on any culture plates streaked with CSF from John, but Brucella spp. are slow-growers and it is too early to expect any growth.
The request also alerts the diagnostic laboratory that samples from John may be infected with Brucella spp. and additional precautions should be observed to prevent laboratory personnel from inadvertently becoming infected.
Based on the additional history and clinical presentation, a probably diagnosis of brucellosis is made, and John begins treatment with a combination of three antibiotics demonstrated to be efficacious against Brucella spp.
:: we don't know the antibiotic. most probably common ones
Multiple interactions are occurring in a very short time frame. Discuss the dynamics of these interactions and the ramifications for the participants.
a-If given that we were tasked to evaluate the model, between MAPE and R2 which of these parameters do we use?
b-If given that model A has a higher MAPE than model B but model B has a higher R2 than model A, then how do we choose among the two?
c-Between the MAPE , MAD and MSD, which of these parameters shall we use for accuracy measures and why?
a. When evaluating a model, we use R2 as a parameter for performance assessment.
b. If model A has a higher MAPE but model B has a higher R2, we choose the model with the higher R2 for better overall performance.
c. For accuracy measures, we typically use MAPE (Mean Absolute Percentage Error) due to its interpretability and ability to capture relative errors.
When evaluating a model's performance, it is crucial to choose the appropriate parameters to assess its accuracy and reliability. In the case of MAPE (Mean Absolute Percentage Error) and R2 (Coefficient of Determination), the choice between them depends on the specific evaluation goals.
The R2 parameter is commonly used for evaluating models because it measures the proportion of the dependent variable's variance that can be explained by the independent variables. R2 provides insights into how well the model fits the data and captures the relationship between the input features and the target variable. Therefore, R2 is a suitable parameter to use when evaluating a model.
When comparing two models, if model A has a higher MAPE but model B has a higher R2, it is advisable to choose the model with the higher R2 value. This is because R2 indicates the proportion of variance explained, suggesting that model B performs better in capturing the underlying patterns and predicting the target variable.
Although model A may have a lower relative error (MAPE), it is crucial to prioritize the model's ability to explain and predict the target variable accurately.
Among MAPE, MAD (Mean Absolute Deviation), and MSD (Mean Squared Deviation), MAPE is commonly preferred as a parameter for accuracy measures. MAPE calculates the average percentage difference between the predicted and actual values, making it interpretable and easily understandable.
It captures relative errors and enables comparisons across different scales and datasets. MAD and MSD, on the other hand, measure absolute and squared errors, respectively, but they do not account for the relative magnitude of the errors. Hence, MAPE is a more suitable parameter for accuracy measures.
Learn more about Model
brainly.com/question/32196451
#SPJ11
Find the Next 3 Letters in J F M A M J J A
What are the next 3 letters in the sequence J F M A M J J A?
The next three letters in the sequence J F M A M J J A are S, O, N.
To find the next three letters in the sequence J F M A M J J A, we need to identify the pattern or rule that governs the sequence. In this case, the sequence follows the pattern of the first letter of each month in the year.
The sequence starts with 'J' for January, followed by 'F' for February, 'M' for March, 'A' for April, 'M' for May, 'J' for June, 'J' for July, and 'A' for August. The pattern repeats itself every 12 months.
Therefore, the next three letters in the sequence would be 'S' for September, 'O' for October, and 'N' for November.
Learn more:About sequence here:
https://brainly.com/question/30262438
#SPJ11
The next three letters in the sequence "J F M A M J J A" are "S O N", indicating the months of September, October, and November.
The given sequence "J F M A M J J A" represents the first letters of the months in a year, starting from January (J) and ending with August (A). To find the next three letters in the sequence, we need to continue the pattern by considering the remaining months.
The next month after August is September, so the next letter in the sequence is "S". After September comes October, represented by the letter "O". Finally, the month following October is November, which can be represented by the letter "N".
Therefore, the next three letters in the sequence "J F M A M J J A" are "S O N", indicating the months of September, October, and November.
It is important to note that the given sequence follows the pattern of the months in the Gregorian calendar. However, different cultures and calendars may have different sequences or names for the months.
Learn more about: sequence
https://brainly.com/question/30262438
#SPJ11
PLEASE HELP ASAPPPP!!!!!!!
here is a screenshot of the math problem
Help pls!!! Indirect proofs?? probably super easy I just don't understand how to do
Answer:
If a figure has exactly three sides, then it is not a triangle.
Step-by-step explanation:
The principal feature of the redesigned checks is a series of printed instructions that the company hopes will help merchants confirm a check’s authenticity, which includes reminders to watch the endorsement, compare signatures, and view the watermark while holding the check to the light.
(A) which includes reminders to watch the endorsement, compare signatures, and view
(B) which include reminders for watching the endorsement, to compare signatures and view
(C) by including reminders for watching the endorsement, comparing signatures, and viewing
(D) including reminders to watch the endorsement, comparing signatures and viewing
(E) including reminders to watch the endorsement, compare signatures, and view
Answer:
(E) including reminders to watch the endorsement, compare signatures, and view
Step-by-step explanation:
The principle features that will help the company to confirms checks authenticity. It include endorsements and compare the signatures with the designated signatories. If the signatures are matched correctly with the assigned signatories the check is hold in light to view the watermark on it.
List the factor pairs of ac for the trinomial 12x^2-5x-2.
Answer:
(3x - 2) (4x + 1)
Step-by-step explanation:
12x² - 5x - 2
Since the first term has a coefficient, you need to multiply -2 with 12 to get -24.
Two factors that add up to -5 and have a product of -24 are -8 and 3.
12x² - 8x + 3x - 2
Rearrange the expression to find the GCF.
12x² + 3x - 8x - 2
3x (4x + 1) + (-1)2(-4x -1)
3x (4x + 1) - 2 (4x + 1)
(3x - 2) (4x + 1)
find the value of each variable angle a, angle b, angle c, and angle d outside of a circle is 43 degrees
Without any additional information about the intercepted arcs or the relationship between the angles, we cannot determine their exact values.
Given that angle d outside of a circle is 43 degrees, we can use the following properties of angles in circles to find the values of angle a, angle b, and angle c:
1. Inscribed Angle: The measure of an inscribed angle is half the measure of its intercepted arc.
2. Central Angle: The measure of a central angle is equal to the measure of its intercepted arc.
3. External Angle: The measure of an external angle is half the difference between the measures of its intercepted arcs.
Using these properties, we can find the value of angle a, angle b, and angle c. However, Please provide more information about the angles' relationships or the intercepted arcs.
To learn more about : values
https://brainly.com/question/843074
#SPJ11
Which expression means 9 less than twice n?
O A. 2n -9
B. 2 (n - 9)
C. 9 - 211
D. 9–2+n
E. (9 - 2)
Answer:
The answer is A, 2n - 9
Step-by-step explanation:
9 less than (-9) twice n (2n)
2n - 9
. suppose (x, y, z),(1, 1, 0), and (1, 2, 1) lie on a plane through the origin. what determinant is zero? what equation does this give for the plane?
The points (x, y, z), (1, 1, 0), and (1, 2, 1) lie on a plane through the origin, then the determinant is zero
Since the plane passes through the root, any two vectors on the plane must be directly autonomous. In this manner, we will utilize the vectors (1, 1, 0) and (1, 2, 1) to discover the condition of the plane.
A vector opposite to the plane can be found by taking the cross item of the two vectors:
(1, 1, 0) × (1, 2, 1) = (-1, 1, 1)
The condition of the plane can be composed as:
x + y + z = d
where d may be steady to be decided. We are able to utilize one of the focuses on the plane, such as (1, 1, 0), to discover d:
1 + 1 + = d
d = 0
In this manner, the condition of the plane is:
x + y + z = 0
To check that the point (x, y, z) = (1, 2, 1) lies on this plane, we will substitute these values into the condition over
1 + 2 + 1 = 0
which is genuine, so the point lies on the plane.
To discover the determinant that is zero, we will utilize the three focuses (x, y, z), (1, 1, 0), and (1, 2, 1) to make a 3x3 lattice:
| x y z |
| 1 1 0 |
| 1 2 1 |
Growing the determinant along the primary push, we get:
x | 1 0 |
| 2 1 | = x(1 - 0) - y(1 - 0) + z(2 - 1) = x - y + z
Subsequently, the determinant is:
x - y + z
Since these three focuses lie on a plane through the root, they fulfill the condition:
x + y + z = 0
Substituting z = -x + y into the expression for the determinant over, we get:
x - y + (-x + y) = 0
Streamlining, we get:
0=0
Subsequently, the determinant is zero, as anticipated.
To know more about determinants refer to this :
https://brainly.com/question/16981628
#SPJ4
lydia graphed δstu at the coordinates s (-3,0), t (0, −3), and u (3, −3). she thinks δstu is a right triangle. is lydia's assertion correct?
No, Lydia's assertion that δSTU is a right triangle is not correct.
A right triangle is a triangle in which one of the angles measures 90 degrees (a right angle). To determine if δSTU is a right triangle, we need to examine the angles formed by the given coordinates.
Using the coordinates:
s (-3, 0)
t (0, -3)
u (3, -3)
We can calculate the slopes of the lines formed by connecting these points to see if any of them are perpendicular (indicating a right angle).
The slope of the line connecting points s and t is:
m(st) = (y₂ - y₁) / (x₂ - x₁) = (-3 - 0) / (0 - (-3)) = -3/3 = -1
The slope of the line connecting points s and u is:
m(su) = (y₂ - y₁) / (x₂ - x₁) = (-3 - 0) / (3 - (-3)) = -3/6 = -1/2
The slope of the line connecting points t and u is:
m(tu) = (y₂ - y₁) / (x₂ - x₁) = (-3 - (-3)) / (3 - 0) = 0/3 = 0
None of the slopes calculated are perpendicular to each other, meaning none of the angles formed by the given coordinates are 90 degrees. Therefore, δSTU is not a right triangle.
In summary, Lydia's assertion that δSTU is a right triangle is incorrect because the angles formed by the given coordinates do not include a 90-degree angle.
Learn more about triangle here : brainly.com/question/29083884
#SPJ11
Sam paid $55 for an hour of tutoring on Mondays and $95 for two hours on Tuesday. The hourly rate is $ per hour.The initial fee is $ .
To find the hourly rate, we can subtract the cost of two hours by the cost of one hour:
\(m=95-55=40\)So the hourly rate is $40.
Then, to find the initial fee, we subtract the cost of one hour by the hourly rate:
\(b=55-40=15\)So the initial fee is $15.
A football team scored 3 touchdowns, 3 extra points, and 4 field goals. If each
touchdown is worth 6 points, each extra point is 1 point, and each field goal is 3
points, what would the expression look like once you replace the letters for their
values?
Answer:
33
Step-by-step explanation:
Someone pls help meeee
Select the three equations that pass through the points (–4, –16) and (5, 2): y + 4 = 2(x – 16) y – 2 = 2(x – 5) y = 2x – 8 y + 16 = 2(x + 4)
Answer:
B, C, D
Step-by-step explanation:
You want to identify the equations through the points (–4, –16) and (5, 2).
SlopeThe slope of the line is given by the formula ...
m = (y2 -y1)/(x2 -x1)
For the given points, the slope of the line through them is ...
m = (2 -(-16))/(5 -(-4)) = 18/9 = 2
Point-slope equationThe point-slope form of the equation for a line is ...
y -k = m(x -h) . . . . . equation for a line with slope m through point (h, k)
Using the first point and the found slope, the equation is ...
y -(-16) = 2(x -(-4))
y +16 = 2(x +4) . . . . . . . . matches choice D
Using the second point, the equation is ...
y -2 = 2(x -5) . . . . . . . . . . matches choice B
Slope-intercept equationWriting the second point-slope equation in slope-intercept form, we get ...
y = 2x -10 +2 . . . . . . eliminate parentheses, add 2
y = 2x -8 . . . . . . . . . . . . matches choice C