Mathematics College

help with number 1 & number 2 please !

Help With Number 1 & Number 2 Please !

Answers

Answer 1

Step-by-step explanation:

2vt= (ht²/2) - 2c - r

v= ((ht²/2) -2c -r) / 2t

v= ht/4 - c/t - r/2t

Related Questions

Statistics can help decide the authorship of literary works. Sonnets by a certain Elizabethan poet are known to contain an average of new words (words not used in the poet's other works). The standard deviation of the number of new words is . Now a manuscript with 6 new sonnets has come to light, and scholars are debating whether it is the poet's work. The new sonnets contain an average of words not used in the poet's known works. We expect poems by another author to contain more new words, so to see if we have evidence that the new sonnets are not by our poet we test the following hypotheses.
H0 : µ = 8.88 vs Ha : µ > 8.88
Give the z test statistic and its P-value. What do you conclude about the authorship of the new poems? (Let a = .05.)
Use 2 decimal places for the z-score and 4 for the p-value.
a. What is z ?
b. The p-value is greater than ?
c. What is the conclusion?
a)The sonnets were written by another poet
b) There is not enough evidence to reject the null.

Answers

Complete question is;

Statistics can help decide the authorship of literary works. Sonnets by a certain Elizabethan poet are known to contain an average of 8.88 new words (words not used in the poet's other works). The standard deviation of the number of new words is 3. Now a manuscript with 6 new sonnets has come to light, and scholars are debating whether it is the poet's work. The new sonnets contain an average of 12.4 words not used in the poet's known works. We expect poems by another author to contain more new words, so to see if we have evidence that the new sonnets are not by our poet we test the following hypotheses.

H0 : µ = 8.88 vs Ha : µ > 8.88

Give the z test statistic and its P-value. What do you conclude about the authorship of the new poems? (Let a = .05.)

Use 2 decimal places for the z-score and 4 for the p-value.

a.What is z ?

b.The p-value is greater than ?

c. What is the conclusion? A)The sonnets were written by another poet or b) There is not enough evidence to reject the null.

Answer:

a) z = 2.87

b) P-value ≈ 0.0021

c) The sonnets were written by another poet

Step-by-step explanation:

We are given the hypothesis as;

Null hypothesis; H0 : µ = 8.88

Alternative hypothesis; Ha : µ > 8.88

We are also given;

Sample size; n = 6

Population Standard deviation; σ = 3

Sample mean; x¯ = 12.4

a) formula for z - value is;

z = (x¯ - µ)/(σ/√n)

z = (12.4 - 8.88)/(3/√6)

z = 2.87

b) we are given the significance value as α = 0.05.

From online p-value from z-score calculator attached and using z = 2.87; one tail distribution; α = 0.05, we have;

P-value = 0.002052

Approximating to 4 decimal places;

P-value ≈ 0.0021

c) The p-value is less than the significance level, thus we react the null hypothesis and conclude that the sonnets were written by another poet

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Answers

Answer:

lol

Step-by-step explanation:

Oil ??.................

what is the answer to this
u(2u+5)-4(U+3)​

Answers

Answer:

its 2u^2-4u+5u-12

Step-by-step explanation:

Patrick is 5.432 feet tall, Ivan is 5.503 feet tall, Laura is 5.413 feet tall, and Daisy is 5.510 feet tall. Which of the following lists them in order from tallest to shortest?

Answers

Answer:

Daisy, Ivan, Patrick, Laura

Step-by-step explanation:

That's just the numbers biggest to smallest.

plz help me thanks so much :)​

Answers

The correct answer is 6
mrs. gorl the answer is 6

How do you evaluate a division problem

Answers

Answer:

Step-by-step explanation:

Not wanting to be trite, i'd still suggest that you use a calculator for routine division.  Round off your answer (quotient) to an appropriate number of decimal places.

For example, 2/3 comes out to 0.66666 ... (repeating decimal).  You might want to round this off to 2 decimal places: 0.67.

The old fashioned "long division" is another method.

       0  .  6

    -----------

3  /   2  .  0   0   0

       0.    0  0    0

   ---------------------

        1.     8

and so on.  You still need to round off the quotient to a suitable number of decimal places.

   

Donald earns $11 per hour working at the bakery.If he works for 4 hours on Saturday and 5hours on Sunday,how much money will he earn?

Answers

Answer:999

Step-by-step explanation:11x9=999

In simple terms what exactly would cause this county to experience a food shortage

Answers

Answer:

obese people eating millions a day.

Step-by-step explanation:

cual es la formula del rombide.help me​

Answers

Answer:

Step-by-step explanation:

The perimeter of a rhomboid: The perimeter of a rhomboid is the sum of all sides of the figure i.e. P= (a +b + a +b) = 2(a + b).

B is the base of the rhomboid and a is the length of the side of the rhomboid.

Hope this helped! If so, plz mark brainliest.

Which equation is equivalent to 3[x + 3(4x – 5)] = 15x – 24?
a.15x – 15 = 15x – 24
b.15x – 5 = 15x – 24
c.39x – 45 = 15x – 24
d.39x – 15 = 15x – 24

Answers

Answer: 39x-45=15x-24

Step-by-step explanation:

Do inside brackets first then simplify

1. What is the range? Write your answer like # (Don’t worry that it’s not the less than or equal sign)

Helppppppp

Answers

3y

Step-by-step explanation:

A statement of an employee's biweekly earnings is given below.




Earnings


Deductions




Week Ended


Regular


FED. SOC. MED STATE


WITH. WITH. CARE. WITH.


NET PAY


8/18


$_____


$72.00 $35.05 $15.54 $14.40


$793.01



What is the employee's gross pay?


A.

$900.50


B.

$1000


C.

$930


D.

$975.10

Answers

Answer:

kjj ,mStep-by-step explanation:

write 3 numbers that make this inequality true: x>4​

Answers

Answer:

8, 10, 24

(Basically every number above 4)

Answer:

5,6 and 7

> means more than or greater than.

In this situation, its asking for numbers greater than 5.

Hope this helps. ;)

For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitting. What do you think the slope and the y intercept represent? How much money will she make if she baby-sits 5 hours?

Answers

C = 5h + 3
C = 5(5) + 3
She will make $28

On a television game show, contestants earn 5 points for each correct answer, but lose 2 points for each wrong answer. On last week's show, the winning contestant earned 80 points and answered 30 questions.

Given that x represents the number of questions answered correctly, and y represents the number of questions answered incorrectly, determine which system of equations correctly represents this situation.
A. 5x-2y=30
x+y=80
B. 5x-2y+80
x+y=30
C. 5x+2y=80
x-y=30
D. 5x+2y=30
x+y=80

Answers

Sorry to inform that I can't find the answer to this question.

Socratic can help! This learning app, powered by Google AI, helps you understand your school work at a high school and university level. Ask Socratic a question and the app will find the best online resources for you to learn the concepts.

Solve four and six eighths minus two and three fifths.

(GIVING EXTRA POINTS AND BRAINLIEST ON THIS ONE!! *v*)

A) one and six thirteenths

B) one and three fortieths

C) two and six fortieths

D) two and three thirteens

(Here is an image if needed) :

Answers

I'm pretty sure the answer is number 2.

Answer:

b

Step-by-step explanation:

The regular price of running shoes is $89.00. They are on sale for 20% off.


a.) What is the amount of discount (amount you are subtracting from the original)?


b.) What is the sale price (the new amount)?



Please explain the question!

Answers

Answer:

a. 17.80 b. 71.20

Step-by-step explanation:

I used to hate percents. Let me teach you a trick:

take the og value (89) and multiply it by the percentage (20% or 0.2). Then once you have that answer (17.80), subtract it from the og value (89-17.80). That's your answer for how much you still owe! (71.20)

any other follow up questions? Just ask :)

Find the zeros of f(x) =x^3+2x^2-3x

Answers

Answer: 0, 1, -3

Step-by-step explanation:

f(x) = x^3 +2x^2 -3x

f(x) = x(x^2 +2x-3)

f(x) = x(x-1)(x+3)

to find zeroes, plug into f(x) and solve for each value of x. doing this gives 0, 1, and -3

What is the GCF of 8 and 20
O 8
O2
O 4
O 10

Answers

What is the GCF of 8 and 20

Answer: 4

Can someone help me with problems 3&4 please

Answers

Answer:

about 37 times

Please I need help I give brainliest!!

Answers

Answer:

x=x

Step-by-step explanation:

PLZ HELP!!!!!!35. ABCD is an isosceles trapezoid with A(0,-1), B(-2,3) and C(6,-1). Find the coordinates of C.
a. (3.8)
b. (9,4)
c. (2,3)
d. (8,3)

Answers

Answer:

wouldnt it be (6,-1)...

Step-by-step explanation:

because those are the cords your said c was at

Leslye wants to purchase a ticket to the dance. She will also purchase snack packs for herself and her friends. She is spending $3 for the ticket and knows that the snack packs will cost $5. Write
an inequality to show how many snack packs Leslye can purchase if she plans on spending less than $30.

Answers

Answer:

5 snack packs and 1 ticket.

Step-by-step explanation:

Do YoU kNoW dA wAe?

select all the equations on which the point (10, 0) lies. A. 5x+2y=15 B. 2x+4y=20 C. x+6y=10 D. 3x+3y=13 E. 4x+2y=20 F. 6x+y=50

Answers

Answer:

The answer to this problem is B, C, and E.

Step-by-step explanation:

The true equations are B. 2x+4y=20 and C. x+6y=10

How to determine the equations?

The point is given as (10,0)

This means that:

x = 10 and y = 0

Next, we test the options by substituting the above values.

So, we have:

A. 5x+2y = 15

5(10) + 2(0) = 15

50 = 15 ---- false

B. 2x+4y = 20

2(10) + 4(0) = 20

20 = 20 ---- true

C. x+6y=10

10 + 6(0) = 10

10 = 10 ---- true

D. 3x+3y=13

3(10) + 3(0) = 13

30 = 13 ---- false

E. 4x+2y=20

4(10) + 2(0) = 20

40 = 20 ---- false

F. 6x+y=50

6(10) + 0 = 50

60 = 50 ---- false

Hence, the true equations are B. 2x+4y=20 and C. x+6y=10

Read more about linear equations at:

https://brainly.com/question/14323743

#SPJ9

Can someone pls help me solving this? ITS NOT A TEST

Answers

Answer:

10x +12

Step-by-step explanation:

2(3x+7) = 6x+14

2(2x-1) = 4x-2

6x+14 +4x-2 = 10x+12

Answer:

P = 10x + 12

Step-by-step explanation:

The length of the rectangle is

L = 3x + 7

The width of the rectangle is

W = 2x - 1

The formula for perimeter of a rectangle is

P = 2L + 2W

Plug in the values for length and width and simplify.

P = 2(3x + 7) + 2(2x - 1)

P = 6x + 14 + 4x - 2

P = 10x + 14 - 2

P = 10x + 12

The $199.99 camera Anne purchased was on sale for 25% off. What amount did Anne get off the price rounded to the nearest dollar?

Answers

Answer:

50 dollars

Step-by-step explanation:

199.99 x .25

Answer:

the answer is 50 dollars

Find the 15th term of the arithmetic sequence whose common difference is d = 8 and whose first term is a,=5.​

Answers

Answer:

117

Step-by-step explanation:

Tn=a+(n-1)d

5(15-1)8

117

What is the sum of -16/8 and 2

Answers

Answer:

0

Step-by-step explanation:

Answer:

the answer is 0

Step-by-step explanation:

hope this helped,brainliest?

here is some info about a play

starts at 7:30

1st act lasts 46 min

interval 20 min

2nd act 53 min

what time does the second act end

Answers

Answer:

The answer would be 9:29

Step-by-step explanation:

7:30 and add 46 min would be 8:16

8:16 and 20 min would be 8:36

8:36 and 53 min would be 9:29

Can someone help me??

Answers

Answer:

24 i think if im wrong im sorry :(

Step-by-step explanation:

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