Use an equation to find the value of k so that the line passing through (−2,k) and (2,0) has a slope of −1.

Answers

Answer 1

Answer:

k = 4

Step-by-step explanation:

Calculate the slope m using the slope formula, then equate to - 1

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 2, k ) and (x₂, y₂ ) = (2, 0 )

m = [tex]\frac{0-k}{2-(-2)}[/tex] = [tex]\frac{-k}{2+2}[/tex] = [tex]\frac{-k}{4}[/tex] , then

[tex]\frac{-k}{4}[/tex] = - 1 ( multiply both sides by 4 )

- k = - 4 ( multiply both sides by - 1 )

k = 4


Related Questions

Is -3/4 greater than -0.25

Answers

Answer: No

Step-by-step explanation:

you should know that 3/4 is the same as 0.75. -0.75 is smaller than -0.25 because when dealing with negative numbers, what would be the “smaller” number in positive negative integers is actually the larger number as it is closer to 0.

Answer:

-0.25 is greater than -0.75

Step-by-step explanation:

usually if they were positive 0.75 would be bigger but since there negative decimals, -0.25 is greater. By the way, -0.75 is -3/4.

Plz help .!$&&&&&&&&&

Answers

The thing dosnet show

[tex]--------------[/tex]
12+12+12

Answers

Answer:

[tex]12 + 12 + 12 = 36 \\ \\ \\ i \: hope \: it \: is \: helpfull[/tex]

Check the given measurements whether it could make a triangle

(a) 7 cm, 2 cm and 5 cm


(b) 10 cm, 12 cm and 14 cm.​

Answers

I don't know sorry.

Sorry!

I’ll mark the brainiest

Answers

Answer: 122°

Step-by-step explanation:

Because angles on a straight line are supplementary (add up to 180°), then:

m∠2 = 180° - 58°

        = 122°

122
Supplementary angles
180-58=122

Plzzzz help meeeee plzzzz helppmmmmeee

Answers

It’s not supposed to be -5 but just 5

Explanation: I just know

Please explain step-by-step! Thanks!


Random answers will be reported

Answers

Step-by-step explanation:

what is your questions?????
What do you want us to solve

for g(x)=2x^2-8x-10 find each value
g(2)
g(5)+12
g(8)-18
g(-3)-g(4)

Answers

Answer: ask your teacher duh

Step-by-step explanation:

if [tex]a_{1}[/tex]=4 and [tex]a_{n}[/tex]= [tex]5a_{n-1}[/tex]-1 then find the value of [tex]a_{3}[/tex]

Answers

Answer:  94

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

Explanation:

The first term is 4 because of the notation [tex]a_1 = 4[/tex]

To get the second term, we'll use the recursive equation [tex]a_n = 5(a_{n-1})-1[/tex] which basically says [tex]\text{nth term} = 5*(\text{previous term})-1[/tex]. To get the second term, we'll multiply the first term by 5, then subtract off 1.

2nd term = 5*(1st term) - 1

2nd term = 5*4 - 1

2nd term = 19

This means [tex]a_2 = 19[/tex]

We repeat this process again to find the third term [tex]a_3[/tex]

[tex]a_n = 5*(a_{n-1})-1\\\\a_3 = 5*(a_{3-1})-1\\\\a_3 = 5*(a_{2})-1\\\\a_3 = 5*(19)-1\\\\a_3 = 95-1\\\\a_3 = \boldsymbol{94}\\\\[/tex]

The third term is 94

Rickets Vitamin D is essential for strong, healthy bones. Our bodies produce vitamin D naturally when sunlight falls upon the skin, or it can be taken as a dietary supplement. Although the bone disease rickets was largely eliminated in England during the 1950s, some people there are concerned that this generation of children is at increased risk because they are more likely to watch TV or play computer games than spend time outdoors. Recent research indicated that about 20% of British children are deficient in vitamin D. Suppose doctors test a group of elementary school children.
a) What’s the probability that the first vitamin D– deficient
child is the eighth one tested?
b) What’s the probability that the first 10 children tested
are all okay?
c) How many kids do they expect to test before finding
one who has this vitamin deficiency?
d) They will test 50 students at the third-grade level. Find
the mean and standard deviation of the number who
may be deficient in vitamin D.
e) If they test 320 children at this school, what’s the
probability that no more than 50 of them have the vita- min deficiency?

Answers

Answer:

Our wide range of vitamins, minerals and health supplements help to ensure you’re getting the nutrients you need every day. From chewable vitamins to food supplements, hair vitamins to vitamins for skin and folic acid. There is something for everyone to support a healthy lifestyle, whilst improving wellbeing for you and all the family.

I’m pretty sure is (c)

What is the slope of this line?

−12

12

2

Answers

2 is the answer!!

MARK ME BRAINLIEST PLSSSS

Johnny has a bag full of marbles that he keeps in his desk. He has 35 red marbles and 25 green marbles. Find the ratio of red marbles to green marbles, and put it in its simplest form.​

Answers

Answer:

7:5

Step-by-step explanation:

Ratio between red and green marbles is simply the number of red marbles to the number of green marbles.

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

35:25

To simplify it, you divide both of them by 5 (which is the highest common factor) to get

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

7:5

$200 is shared between two friends Mary and John in the ratio 3 : 2 respectively. What is the result?​

Answers

Answer:

John: $80

Mary: $120

Step 1: Add the ratios (3 and 2).

=> 3 + 2 = 5

Step 2: Divide 200 by 5.

=> 200 ÷ 5

= 40

Step 3: Multiply.

=> Mary total: 40 x 3 = $120

=> John total: 40 x 2 = $80

Hoped this helped

Sofia planted a maple tree sapling that was 5.5 inches tall. The tree grew 10 inches each year. Write an equation that shows how the sapling's height in inches, y, depends on the number of years since it was planted, X. Y =​

Answers

Answer:

y= (10*x)+5.5

Step-by-step explanation:

B)

Answer:

y = 10x + 5.5

Step-by-step explanation:

We can write our equation in slope-intercept form, which looks like y = mx + b. "m" is our growth rate, and "b" is our y-intercept, or starting value.

So, let's fill in "m" first. What is our growth rate? Well, 10 inches per year. So, we can replace "m" with 10: y = 10x + b. But we have to figure out which number to replace "b" with. In this scenario, Sofia planted the maple tree when it was already 5.5 inches tall. So, when it grows 10 inches per year, the inches are being added to that original value. 5.5 is our starting value: y = 10x + 5.5. And that's our final equation.

Hopefully that's helpful! :)

pls I need an answer it's due tomorrow​

Answers

Answer:

1)

Factors of 25:    1, 5, 25

Factors or 75:    1, 3, 5, 15, 25, 75

Multiples of 25:    25, 50, 75

Multiples of 75:    75, 150, 225

2)

Factors of 35:    1, 5, 7, 35

Factors of 45:    1, 3, 5, 9, 15, 45

Multiples of 35:    35, 70, 105

Multiples of 45:    45, 90, 135

3)

The factors of 21:     1, 3, 7, 21

The factors of 56:      1, 2, 4, 7, 8, 14, 28, 56

Multiples of 21:    21, 42, 63

Multiples of 56:     56, 112, 168

4)

The factors of 54:     1, 2, 3, 6, 9, 18, 27, 54  

The factors of 72:      1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

Multiples of 54:       54, 108, 162

Multiples of 72:        72, 144, 216

5)

The factors of 27:     1, 3, 9, 27

The factors of 36:     1, 2, 3, 4, 6, 9, 12, 18, 36

The multiples of 27:     27, 54, 81

The multiples of 36:     36, 72, 108

6)

The factors of 12:     1, 2, 3, 4, 6, 12

The factors of 16:     1, 2, 4, 8, 16

The multiples of 12:    12, 24, 36

The multiples of 16:     16, 32, 48

T/19+4=5. T/19=1. T=

Answers

Answer:

t is 19.

Step-by-step explanation:

Subtract 4 from both sides.

Next, multiply both sides by 19.

Colin predicted whether he got answers right or wrong in his 50 question exam.

He identified the 12 questions he thought he got wrong.

It turns out that Colin got 5 questions right that he thought he got wrong.

Colin also got a total score of 42 out of 50 in the test.

What is the percentage accuracy he had with predicting his scores?

Answers

Step-by-step explanation:

so, he predicted he had 12 questions wrong.

that would have been a score of 38.

but he got 42.

that is a difference of 42-38 = 4.

now, accuracy could have different meanings like actual score vs. predicted score, or which questions were right or wrong (for real or predicted), or only looking at the questions that were right (real vs. predicted), ...

I assume it is the first one.

so,

100% = 38 (prediction)

1% = 100%/100 = 38/100 = 0.38

how many % are these 4 questions that his prediction was off from reality ?

4 / 0.38 = 10.52631579...

so, his prediction was off by about 10.53%

Answer and explain every step of your solution.

Answers

Answer:

min: (-2;-6) & (1; 3/4); max: (0;2).

Step-by-step explanation:

1) f`(x)=3x³+3x²-6x;

2) f`(x)=0, ⇒ 3x³+3x²-6x=0;

3) 3x³+3x²-6x=0; ⇒ x(x²+x-2)=0; ⇒ x(x-1)(x+2)=0; ⇒ x₁=0; x₂=1; x₃=-2;

other steps are provided in the attachment.

With a population standard deviation of 10 and a sample size of 4, what is the standard error of the mean

Answers

With a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the meanWith a population standard deviation of 10 and a sample size of 4, what is the standard error of the mean

Step-by-step explanation:

3 divied \frac{3}{4}[/

Answers

Answer:

The answer is 4

Step-by-step explanation:

I did it and got it right

Please mark me as brainly

Please leave a 5 star review

Have a good day!

:)

Ged can fit six boxes each measuring 1
cubic metre (m') along the length of his
removals van. Two boxes fit across the
width and two boxes high. The
approximate total volume of boxes that will
fit in the van is
m3

Answers

Answer:

24 m3.

Step-by-step explanation:

6 * 2 * 2.

Pre-Algebra simple question​

Answers

Step-by-step explanation:

multiplication

yep that is the answer

Answer:

multiplication should be used

Math Essay Solve for g. make sure to show your work
(16 divided 4)(3x7)=g

Answers

Answer:

84 = g  

Step-by-step explanation:

(16 ÷ 4)(3 × 7) = g       Divide

   4(3 × 7) = g              Multiply

    4 × 21 = g               Multiply

        84 = g                Simply

Select the correct expression. Which expression is equivalent to 5^4 · (5^-2)^3 ?
5-^3
5^2
5^-2
5^-1

Answers

we have 5^4 . (5^-2)^3 = 5^4 . 5^-6 = 5^ (4-6) = 5^-2

ok done. Thank to me :>

please someone help me answer this question. file is attached.

Answers

Answer:

ok so im pretty sure it is 6 pans with 2 cups left over

Step-by-step explanation:

so 2 1/2 times 6 is 15 since we cant get it exactly, so you use 6 which is 15 and you figure out what was leftover which is 2

What is the greatest common factor (GCF) of 14 and 21?

Answers

Answer:

7

Step-by-step explanation: u get 14 by multiplying 2 and 7 and u get 21 by multiplying 7 times 3

[tex]14 = 7 \times 2 \\\\21 = 3 \times 7\\\\GCF = 7[/tex]

During vacation, Dave and his brother, Scott,rode their bikes form their family's rental house to a pond to go fishing. Although they left the rental house together, Dave arrived at the pond a few minutes before Scott. This weekend, they plan to ride a nearby mountain trial and turn back after an hour if they can't complete it. Who will likely ride farther along the mountain trial?

Answers

Answer:

Im soooooo hungry ughhh

Step-by-step explanation:

Hi

The half-life of krypton-91 is 10 seconds. At time t = 0 a heavy canister contains 3 g of this radioactive gas. How much remains after one minute?

Answers

Half time of krypton 91 = 10s

this means, it reduces to half of the remaining in every 10s

So, In 10 sec , the mass remaining will be :

3/2 = 1.5

After 20 sec, the mass remaining will be :

0.75 g

After 30 sec, the mass remaining will be :

0.375

After 40 sec, the mass remaining will be :

0.1875 g

After 50 sec, the mass remaining will be :

0.09375 g

After 1 minute, the mass remaining will be:

0.046975 g

Which theorem does it offer proof of?

Answers

Answer:

vertical angles are =

Step-by-step explanation:

help me with this please!

Answers

Answer is 4u + 36
Have a great day/night
your answer what would be 9+4u because distributive property is taking whatever is outside of parentheses and distributing it to each of the numbers inside of the parentheses so after you multiply 4×9 and 4xu then you get 9+4u as your answer

hope this helps:)))
Other Questions
A painting titled Self-Portrait with Monkey and Parrot by Frida Kahlo, showing Frida posing with a dark-furred monkey and a green parrot. The multi-colored leaves of plants are in the background. Examine the painting Self-Portrait with Monkey and Parrot. What do the animals and the background suggest about the artist? her interest in nature her appreciation for beauty her interest in pleasing others her feelings about her condition. Help I need a helping hand A boat travels at a rate of 30 miles per hour for 3.5 hours. Let y be the distance, in miles, the boat travels for a given amount of time, x, in hours. This situation can be modeled by a linear function. What is the domain of the function?Question 11 options:0y300y3.50x3.50x30 Question 1 (5 points)(04.01 LC)Based on the law of conservation of mass, which of the following statements is correct? (5 points)aMatter is neither created nor destroyed.bMatter can be created but it cannot be destroyed.The total mass of substances before a reaction is less than the total mass after a reaction.The total mass of substances before a reaction is greater than the total mass after a reaction. If the simple interest on $4,000 for 5 years is $1,400, then what is the interest rate? Summarize in not more than 120 words, describing how Sam became an alcoholic and later kicked the habit." I want some more beer ..." Sam turned around and saw a dirty, unshaven drunkard mumbling in coherently as he wobbled aimlessly along the road. Shaking his head, Sam continued his way back home.Sam did not bother to switch on the lights at home. Everyone must be asleep at this late hour, he thought. He tiptoed into Marie's bedroom and found her sleeping soundly, snugly tucked under her pink comforter. Sam bent over and kissed his beloved five-year-old daughter's forehead. "Thanks, dear. If it was not for you, I would never have turned over a new leaf," Sam whispered in gratitude, recalling the drunken man he saw a while ago.A year ago, after being retrenched from his computer company, Sam felt dejected and worried about how he was going to provide for his family. The situation worsened when he failed to secure a job after months of intensive searching. Soon, Sam began to indulge in alcoholic drinks to drown his sorrows. His savings which was used to sustain the family expenses during his retrenchment was tremendously depleted by his drinking habits. Soon his wife, Catherine, became the family's sole bread winner.Catherine's efforts to stop Sam from drinking were futile. Alcohol had transformed the once-gentle family man into a violent beast. Sam began to hit his wife when she refused to give hi money for his drinks. Once Catherine tried hiding his drinking bottles, hoping to stop Sam from drinking. Sam was so agitated when he could not find his bottles that he locked Marie into her bedroom and threatened her into revealing the hiding place. The incident instilled terror in Marie and thereafter, she tried her best to avoid SamThese traumatic incidents continued until the launch of the "stop Drinking" campaign by the government. Striking and persuasive posters were put up in the public to persuade alcoholics to kick their habit. None of them succeeded in bringing Sam to his senses except one. The poster illustrated an alcoholic man abusing his wife while their terrified daughter cried helplessly. The slogan accompanying the poster was: 'Will Your Children Be Able To Draw A Happy Family Again?'. Sam suddenly recalled a poster entitled 'Happy Family' drawn by Marie for school before he began drinking. As if released from a spell, he realized how irresponsible and abusive he had been. Overcome with guilt, he quit drinking totally."Sam, why aren't you going to sleep?" asked a concerned Catherine."I'm coming, Catherine," Sam replied with a smile as he headed for his room Write a program that copies only unsigned numbers from Array1 to another Array2. The Array1 has both signed and unsigned numbers in assembly language 1messageTwo friends went bowling. One friend scored 130 points and the other friend scored 83 points. How does the value represented by the 3 in 130 compare to the value represented by the 3 in 83?It is 3 times greaterIt is 10 times greaterIt is 47 times greaterIt is 50 times greater 58. The frequency distribution below summarizes employee years of service for Alpha Corporation. Determine the width of each class.Years of service Frequency1-56-102011-152516-201021-25526-30 During the summer, the __________ Hemisphere is tilted toward the Sun, and the weather conditions are relatively calm. Brian invests 7500 into his bank account. He receives 6% per year compound interest. How many years will it take for Brian to have more than 10000? The choir needs to raise $2,620.00 for a trip to the state competition. They are selling sets of candles for $25.00 per set. They have already raised $1,225.00 from the fundraiser. The photograph is of Francis Perkins. Which historic milestone did she achieve?OA. She became the first female Secretary of Labor.OB. She became the first woman to head a labor union.OC. She became the first female member of the cabinet.D.She became the first woman to serve in Congress. Gabriel was out at a restaurant for dinner when the bill came. His dinner came to $20. After adding in a tip, before tax, he paid $23. Find the percent tip. 19. Round the number 347 500 to the nearest 1000; 10 000 and 100 000.To the nearest 1000To the nearest 10 000To the nearest 100 000 Harrison is making bread. He prepares some dough and places it into the oven. 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