help with khan academy plzzz!!!

Help With Khan Academy Plzzz!!!

Answers

Answer 1

Answer:

Your slope is 2/3

Step-by-step explanation:

Rise/Run

=2/3


Related Questions

An ice chest contains 7 cans of apple​ juice, 6 cans of grape​ juice, 6 cans of orange​ juice, and 4 cans of mango juice. Suppose that you reach into the container and randomly select three cans in succession. Find the probability of selecting three cans of mango juice.

Answers

Answer:

4/1771

Step-by-step explanation:

Step one:

given

sample space

7 cans of apple​ juice,

6 cans of grape​ juice,

6 cans of orange​ juice, and

4 cans of mango juice

Sample size= (7+6+6+4)

                       = 23

Step two:

Required

The probability of randomly selecting three cans of mango juice in succession

Note: we are selecting without replacement

let the probability of selecting three cans of mango juice be

the first selection is= 4/23

The second = 3/22

the third= 2/21

[tex]P(x)= 4/23*3/22*2/21[/tex]

[tex]P(x)= \frac{4*3*2}{23*22*21} \\\\P(x)= \frac{4}{23*11*7}\\\\P(x)= \frac{4}{1771}[/tex]

4.89 is this a rational or a irrational

Answers

Answer:

Rational because it isn't a repeating decimal

Step-by-step explanation:

A farmer grows a particular plant that has a gene that can be manipulated to control the age t at which the plant matures. The number of seeds S(t) produced by a plant maturing at age t is S(t)=−0.3t2+30t+0.2 seeds per mature plant A farmer asks the geneticists to genetically engineer a plant line that accounts for the fact that on his farm, only P(t)=90000t+100, plants mature to age t. What age of maturity should the geneticist select for the plants to maximize the seed production of the farmer's crop?a. Between 130 and 140 days b. Between 120 and 130 days

Answers

Answer:

The correct option is;

Between 40 and 50 days

Step-by-step explanation:

The number of seeds that are produced by a plant maturing at age t, S(t), is given as follows;

S(t) = -0.3·t² + 30·t + 0.2

The proportion of plants maturing at age (t) in the plants to be engineered by the geneticist P(t) = 90000/(t + 100)

The number of seeds produced by the plants  = S(t) × P(t) = (-0.3·t² + 30·t + 0.2)×(90000/(t + 100))

To find the maximum number of seeds, we differentiate using an online tool, and equate to zero to get;

d((-0.3·t² + 30·t + 0.2)×(90000/(t + 100)))/dt = (-27000·t² - 5400000·t + 269982000)/(t + 100)² = 0

(-27000·t² - 5400000·t + 269982000)/(t + 100)² = 27000(t - 41.419)(t + 241.419)/(t + 100)² = 0

t = 41.419 or t = -241.419

Therefore, in order to maximize the production of seed of the crops of the farmer, the geneticist should select between 40 and 50 days.

George hiked from the top of a hill to the valley floor. The elevation at the top of the hill is 127 feet above sea level. The valley floor is 52 feet below sea level. George stopped at a rest stop that is at an elevation exactly halfway between the top of the hill and the valley floor. What is the elevation, in feet, of the rest stop? Show your work

Answers

Answer:

The elevation of the rest stop is 37.5 feet above sea level.

Step-by-step explanation:

Given that the elevation at the top of the hill is 127 feet above sea level and The valley floor is 52 feet below sea level.

So, the total length from the top of the hill to the valley floor

[tex]l= 127+52 = 179[/tex] feet

So, length of halfway [tex]= l/2=179/2=89.5[/tex] feet ...(i)

Assuming that the stop for rest, the halfway between the top of the hill and the valley floor, is at x feet above sea level.

So, the length between the stop position and the valley floor [tex]= 52 +x[/tex] feet.

As the stop position is at half-way, so by using equation (i), we have,

[tex]52 + x = 89.5 \\\\\Rightarrow x =89.5-52 \\\\[/tex]

[tex]\Rightarrow x=37.5[/tex] feet

Hence, the elevation of the rest stop is 37.5 feet above sea level.

if you know this please help

Answers

Answer:

its c hope this helps:)

Step-by-step explanation:

help!!! please & explain if can:(

Answers

Answer:

x = 15

Step-by-step explanation:

AEB is a right angle, a right angle is 90 degrees

this means 5x+15 needs to equal 90

plug in 15 for x

5 x 15 + 15 = 90

determine the true statements about trend lines in scatterplot. Check all that apply

Answers

Answer:

what

Step-by-step explanation:

theres no answers?

Answer:

(A) A trend line can be used to make predictions in real-world situations.

(B) A scatterplot that shows no correlation between the variables does not have a trend line.

(D) A regression line and trend line are equivalent terms.

Step-by-step explanation:

Mr. Stokes bought 6 1/2 pounds of meat for a party. He used 2 1/4 pounds of meat to make tacos. The rest he used to make 1/4 pound burgers. How many burgers did Mr. Stokes make?

Answers

9514 1404 393

Answer:

  17

Step-by-step explanation:

The remaining amount of meat is ...

  6 1/2 - 2 1/4 = 4 1/4 = 17/4 . . . pounds

The number of 1/4 pound burgers that can be made with that amount of meat is ...

  (17/4)/(1/4) = 17/1 = 17

Mr. Stokes made 17 burgers.

Use the given information to write the equation of the line.
slope 2, y-intercept - 4

Answers

Answer : y = 2x - 4

Hope this helps (:

solve 3(x-4) = 12x. circle your final solution

Answers

Answer:

9x-12

Step-by-step explanation:

3*x = 3x

3*-4= -12

3x - 12 = 12x

12x-3x = 9x

9x-12

Answer:  x = -4/3

Step-by-step explanation:

3(x−4)=12x

Step 1: Simplify both sides of the equation.

3(x−4)=12x

(3)(x)+(3)(−4)=12x  (Distribute)

3x+−12=12x

3x−12=12x

Step 2: Subtract 12x from both sides.

3x−12−12x=12x−12x

−9x−12=0

Step 3: Add 12 to both sides.

−9x−12+12=0+12

−9x=12

Step 4: Divide both sides by -9.

-9x/-9 = 12/-9

x = -4/3

Please help lol can't figure it out help

Answers

Answer: A- 3 3/10 feet

Step-by-step explanation:

Multiply 5 and 1/2 by 3/5 to get 3 and 3/10 feet. I prefer decimals so you could use 5.5 x 0.6 and get 3.3. It's the same thing but if it's in fractions you should multiply by using fractions.

2x-Y (5y X -6) 3^6y what is that as an expression

Answers

Answer:

The answer is:

2x + 30y^2 × 729^y

Can you help me with this?

Answers

Not too sure, but I think X = 39

9. Original price of a CD: $17,00 Discount: 50%

Answers

Answer:

$34.00

Step-by-step explanation:

This is because if you divide 17 by 0.50 that equalls34 the orginal  price

17/0.50=34

Which of the binomials below is a factor of this trinomial?
+ 12x+32
O A. x-2
O B. x+ 2
O C. X-4
O D. X+4
PLEASE HELP!!

Answers

x-4 is thr right one i’m my onion

sami gets £50 for her birthday.She buys a magazine costing £1.95, a bag for £7.50 and a pair of shoes for £24.99.How much does she have left?​

Answers

Answer:

15.56

Step-by-step explanation:

mark brainliest k ty

Step-by-step explanation:

50 - ( 1.95+ 7.50+ 24.99) =

50 - 34.44 = 15.56


Michael started a savings account with $300. After 4 weeks, he had $350 dollars, and after 9 weeks, he had $400. What is the rate of
change of money in his savings account per week?
Person to answer get prize
Pls help

Answers

Answer:

$12.5

Step-by-step explanation:

all you do is divide the 4 weeks to the $50 he earns and get $12.5 every week.

Suppose AP = 2 cm and BQ = 7 cm. What is the length of PC?

Answers

Step-by-step explanation:

is this a quadrilateral? or polygon or triangle?

what are the angles (I believe there should be at least an angle given) else PC can be any value that is positive

Decide whether each sentence uses descriptive language or not. Jasmine saw a frog in the road. She suspiciously eyed the fluffy white poodle that was decorated with fluorescent pink bows. The sky was a dull and murky gray. The boy watched his brother play on the swing set.

Answers

Answer:

Decide whether each sentence uses descriptive language or not.

Jasmine saw a frog in the road.

✔ not descriptive

She suspiciously eyed the fluffy white poodle that was decorated with fluorescent pink bows.

✔ descriptive

The sky was a dull and murky gray.

✔ descriptive

The boy watched his brother play on the swing set.

✔ not descriptive

Step-by-step explanation:

Jasmine saw a frog in the road is a non-descriptive sentence.

What is a sentence?

A sentence can be defined as the part where the phrase and the words are. This often contains a subject and a predicate. For a sentence, it needs to be grammatically correct. Also, there should be proper punctuation marks that are needed in a sentence. It can contain a noun or a pronoun. The sentence helps in communicating the thoughts.

The descriptive and nondescriptive sentences are given below:

Jasmine saw a frog in the road is a non-descriptive sentence. She suspiciously eyed the fluffy white poodle that was decorated with fluorescent pink bows is a descriptive sentence. The sky was dull and murky gray is a descriptive sentence. The boy watched his brother play on the swing set is a non-descriptive sentence.

Learn more about sentence, Here:

https://brainly.com/question/27891489

#SPJ2

how come nothing feels real anymore? i've searched and i can't find why. all of my feelings and surroundings seem fake. i've felt like this for over a week straight so far, and this feeling has happened before but it's only lasted like a day or less. i can't get rid of the feeling, and i just wanna escape it. i feel like i'm not in "my" body. like my hands aren't my own, and i dont have complete control over them. when i look in the mirror, it's like it's not actually me looking back. no matter how many people are around me, it feels like they're all fake and aren't actually there. like this isn't the world i'm actually in. it's driving me insane and i just have the constant feeling that i want to cry and escape this. i can't tell my parents this, because they'll just say i'm being dramatic or just don't want to do my work or something like that. just please help me understand what's going on, or if there's anything i need to do. please. (i put this up for 50 points)

Answers

Answer:

I also have felt like this recently. Try talking to someone about it. :)

Rewrite x^2+16x-36 in factored form

Answers

Answer: (x-2)(x+18)


Two numbers that multiply to -36 and also add to 16 are (-2) and (18).

The temperature falls from 3 degrees Celsius to -4 degrees celcius what is the the difference in these temperatures
20 points

Answers

Answer:

7

Step-by-step explanation:

3 - -4=7

Pedro had $235 in his saving account when Jim had $450 in his account. Look at the situation in the image. Which inequality shows when the amount of money in Pedro’s account is greater than the amount of money in Jim’s account?

Answers

Answer:

$450>$235

Step-by-step explanation:

This is because, when 235 is subtracted from 450 there is a great difference thats why $450 is greater than $235

Which of the following is a quadratic function?

Answers

A quadratic function is written as ax^2 + bx + c

Where the first term is raised to the 2nd power and the second term includes the x variable.

The answer would be number 2

Deena deposited $48 in a new bank account. After buying groceries, she had $19 left in the account. Then she paid her cell phone bill, which was $31. Select all the true statements about Deena’s account.

To start, Deena had a positive balance.

In this situation, 0 represents an empty bank account.

After paying for groceries, Deena had a negative balance.

After paying her cell phone bill, Deena had –$12 in the account.

The smallest balance in the account was $19.

Answers

Step-by-step explanation:

Step one:

given data

amount deposited=$48

after the purchase of groceries

account balance= $19

cell phone bill, which= $31

Step two:

The account balance after paying for groceries will be

=19-31= $-12

she will have a deficit of $12, hence a negative account balance

To start, Deena had a positive balance. -------True

In this situation, 0 represents an empty bank account. -----True

After paying for groceries, Deena had a negative balance. ---True

After paying her cell phone bill, Deena had –$12 in the account. ...True

The smallest balance in the account was $19. ....True

Answer my math question I asked so many times I lost most of points by

Answers

Answer:

im sorry i wish i can help

Step-by-step explanation:

What is the domain of Graph 1

Answers

The domain of a fraction is this set of all possible inputs for the function

what is the domain of this scatter plot?

Answers

Answer:

this answer should be green

A person rents a moving truck for the day. There is an initial rental fee of $20 and an additional $0.25 every mile driven. Write the equation representing cost, C(m) as a function of the number of miles traveled, m.

C(m)=

Answers

Answer:

Step-by-step explanation:

cost is 20 fee + .25 per mile.

c =20+0.25m

Select three ratios that are equivalent to 11:1
Choose 3 answers:
A
1:11

(Choice B)
B
22:2

(Choice C
C
55:5

(Choice D)
D
9:99

(Choice E)
E
110:10

Answers

B C and E are correct
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