Mathematics Middle School

HELP ASAP!! WILL GIVE BRAINLIEST
Andrew measured the time it took for an apple to fall 50 feet as 1.95 seconds, but his calculations show that it should be 1.77 seconds. What was his experimental error?

Answers

Answer 1

Answer about 1.77 seconds.

f(t) = -16 t^2 + 25t + 6

f(t) = height.

hieght = 0 = -16t^2 + 25t + 6

Find t using the quadratic formula,

t = ( - 25 +/- √[25^2 - 4 (-16)(6)] ) / [2*(-16)]

t = [-25 +/- √ (625 + 384) ] / -32

t = [-25 +/- 31.76] / -32.

You will obtain two results one positive and one negative. Take the positive only as the other one has no physical meaning. t = 1.77 s.

Answer 2

Answer:The given problem is : −4.5 + 4.2 + 5.6 − 7.3

The order for solving an arithmetic problem is as follows :

Parentheses,

Exponentiation,

Multiplication,

Addition,

Subtraction,

We can rewrite the given problem as : 4.2 + 5.6 - 7.3 - 4.5

Taking 4.2 and 5.6 together in bracket : (4.2 + 5.6) - 7.3 - 4.5

= 9.8 - 7.3 - 4.5

= 2.5 - 4.5

= -2

Hence, the answer for given problem is -2, but Andrew get -21.6 which is wrong.

Related Questions

Solve using unit rates. A person on a moving sidewalk travels 10 feet in 5 seconds. The moving sidewalk has a length of 80 feet. How long will it take to move from one end to the other? The person will take _____ seconds to move from one end to the other.

Answers

Answer:

it will take 8 seconds

Step-by-step explanation:

Answer:

30 seconds

Step-by-step explanation:

The surface area of the prism is ______ square units. All measurements in the image below are in units. (Input whole number only.)

Answers

Answer: 217.45

Step-by-step explanation:

OKAY HELP ME!! I have my answer but I need to know if it's correct!!!


David has 8 times as many photographs as Gary. Gary has p photographs. Write an expression that shows how many photographs David has.

Answers

Answer:

D=8p

David (d) is equal to 8 times the number of photographs Gary (p) has.

Step-by-step explanation:

Answer:

8p = David's photos

Step-by-step explanation:

Gary has p photos, and David has 8 times that many, so 8 × p = David's photos

Please help me I need help on question 3

Answers

54% chance she will

add all the #’s together to get 13 and divide by the # of blue marbles(7)

Answer:

[tex] \huge \blue5 \blue3 \blue. \blue8 \blue\%[/tex]

Step-by-step explanation:

to understand thisyou need to know about:simple probabilitypercentPEMDAStips and formulas:[tex]probability = \frac{Number \: of \: ways \: it \: can \: happen}{Total \: number \: of \: outcomes} [/tex][tex]\% = \frac{1}{100} [/tex]let's solve:

total marbles=7+2+4=13

blue marbles=7

therefore the probability is

[tex] \frac{7}{13} [/tex]

let's convet it in percentage

[tex] \frac{7}{13} \times 100 \: \: \%[/tex]

[tex]53.8\%[/tex]

I'll give brainliest! Help :'(

Answers

2. (x, y) = (2, 0)

3. (x, y) = (1, -1)
2.) (x,y) = (2,0)
3.) (x,y) = (1,-1)

ILL GIVE BRAINLEST if you answer it wright in need it now!!!

Answers

Answer:

56

Step-by-step explanation:

Hudson was working on the problem 1/8y=4 He thought he should multiply bolth sides of the equation by 8 to get 32.
PLEAZE ANSWERRR
EMERGENCYY

Answers

Answer: Use the given functions to set up and simplify

32. 1/8y = 4He= y =32He8= y =32He32=y=32He

please i need someone who ACTUALLY knows the answer to answer this :((

Answers

Answer:

Derek and Sam are correct

Step-by-step explanation:

Answer:

Derek and Sam are correct

Answer the following questions using complete sentences. One word answers are not acceptable.

Suppose Year 0 = 2010

1) What is the slope of this trendline? Explain the significance of the slope in the context of the model. 2) What is the y-intercept of this trendline? Explain the significance of the y-intercept in the context of the model. 3) Predict what the outcome will be 50 years from now. Is making a prediction 50 years into the future appropriate? Why or why not?

Answers

Answer:

I don't know this answer

I need help with this question

Answers

Answer: use photomath

Step-by-step explanation:

you should use photomath

Diante has $3.75
and Rachel has $3.15
. They combine their money to buy as much ice cream as they can afford.

If ice cream costs $3.68
per quart, which two numbers represent how much ice cream they can buy?

A.178
quarts


B.11516
quarts


C.1.75
quarts


D.1.875
quarts


E.1.9375
quarts

Answers

Answer:

Step-by-step explanation:

d

please help me with this for brainliest and a cookie

Answers

C? i am so deeply sorry if it's incorrect.

Step-by-step explanation:

Write the equation of the line in slope-interpret form

Answers

Answer:

y = x + 40

Step-by-step explanation:

The slope is rise/run (1/1), which is just 1 or x.

The y intercept is the point on the y-axis which is 40.

Hope this helps!!!

this equation would be: y = -10x + 40

3 Let g(a) = a² + 1 Evaluate g(-2)​

Answers

Step-by-step explanation: If g(a) = a² + 1, then g(-2) = (-2)² + 1

which simplifies to 4 + 1 or 5.

Remember to always use parenthses when

substituting your given value in for a.

Pls Help I don't wanna fail

Answers

Answer:

c.$35.84

Step-by-step explanation:

32x.12=3.84

32+3.84= $35.84

The answer is c 32/100 =3.84
3.84+ 32 = 35.84

patty wants to run 5 over 6 of a mile every day for 5 days how far will she run in that time

Answers

the awnser is 4 1/6
i did this by multiplying 5/6 times 5

Which phrase below represents the given numerical expression? 12 + 6 *

Answers

Answer:

c 12 increased by 6

Step-by-step explanation:

12+6=18

Please help me!!!

I will reward brailiest

Answers

Answer:

9.5

Step-by-step explanation:

Answer:

9.5

Step-by-step explanation:

2.1+2.1+1+3.3+1 = 4.2 + 1 + 3.3 + 1 = 5.2 + 3.3 + 1 = 6.2 + 3.3 = 9.5

I need help!!! I’ll give brainlist to the correct answer please!!

Answers

Answer:

the answer us b.

The correct answer would be b

Will give Brainly b.ruh !!!!!!!!!!!!!!!!!!!!!! XD

Answers

Answer–4,-3,-6

Step-by-step explanation:

Answer: 14,15,16,17 THWRE you go :)

To make grape juice, water is added to a large cylindrical vat of grapes. If the diameter of the vat is 16 feet, what is the area of the base of the vat? Use 3.14 for π.

Answers

Answer:

200.96cm^2 base area

Step-by-step explanation:

Eq of circle area  = πr^2

= 3.14 x 8^2

  3.14 x 64

  200.96cm^2

 

.

The area of the base of the Vat is 200.96 ft².

Base area of a cylinder:Area = πr²

where

r = radius

π = 3.14

The grape juice is added to the large cylindrical vat. The diameter of the grape Juice is 16 feet.

Therefore,

Base area of the cylinder is a circle.

Base area = πr²

diameter = 16 feet

radius = 16 / 2 = 8 feet

Base area = 3.14 × 8²

Base area = 3.14 × 64

Base area = 200.96 ft²

learn more on cylinder: https://brainly.com/question/14480417?referrer=searchResults

PLEASEEEE help and explain!!

Andre went to a sporting goods store that was having a different sale. He bought a baseball glove and 2 packages of socks. The baseball glove normally costs $34. The baseball glove is not discounted. One package of socks normally costs $6. On sale, one package of socks cost $4. The sales tax rate is 7.75%. What percentage of the total regular price (before tax) was his savings?

Answers

Answer:

About 4% was his saving before tax

Step-by-step explanation:

The mountain climber descended 437.85 feet every hour. What is the change in the climber's elevation after 6 hours?

Answers

The answer should probably be 2627.1 feet

Hope this helps!

Answer:

2627.16  lower down the mountain

Step-by-step explanation:

Every hour, the mountain climber decends 437.85 ft. Using Every to give you a clue as what operation to use, you do

437.85* 6

2627.16

How do the values of the 1s in 14.937 and 6.1225 compare?

Select from the drop-down menu to correctly complete the statement.
The value of the 1 in 14.937 is
times the value of the 1 in 6.1225.
A.10 times
B.100 times
C.1000 times

2.In the number 7,567.23, how does the value of the 7 in the ones place compare to the value of the 7 in the thousands place?

Drag and drop a fraction into the box to correctly complete the statement.
The value of the 7 in the ones place is
the value of the 7 in the thousands place.
A.1/10
B.1/100
C.1/1000

3.How do the 3s in 7.315 and 893.5 compare?

A. The value of the 3 in 7.315 is 100 times the value of the 3 in 893.5.
B. The value of the 3 in 7.315 is 10 times the value of the 3 in 893.5.
C. The value of the 3 in 7.315 is 110 the value of the 3 in 893.5.
D. The value of the 3 in 7.315 is 1100 the value of the 3 in 893.5.

4.How do the 6s in 683.5 and 30.67 compare?

A. The value of the 6 in 683.5 is 1,000 times the value of the 6 in 30.67.
B. The value of the 6 in 683.5 is 10 times the value of the 6 in 30.67.
C. The value of the 6 in 683.5 is 1100 the value of the 6 in 30.67.
D. The value of the 6 in 683.5 is 11,000 the value of the 6 in 30.67.

5.In the number 3.9928, how does the value of the 9 in the tenths place compare to the value of the 9 in the hundredths place?

Drag and drop a fraction into the box to correctly complete the statement.
The value of the 9 in the tenths place is
the value of the 9 in the hundredths place.
A.1/10
B.1/100
C.1/1000
D.10 times
E.100 times
F.1000 times

6. In the number 652.12, how does the value of the 2 in the hundredths place compare to the value of the 2 in the ones place?

Drag and drop a fraction into the box to correctly complete the statement.
The value of the 2 in the hundredths place is Response area the value of the 2 in the ones place.
A.1/10
B.1/100
C.1/1000
D.10 times
E.100 times
F.1000 times

ASPPPPP PLLEEAAASSSEEE ANSWER ALL OF THEM CAN'T FAIL THISS!!!!!!!!

Answers

1. B 2. C 3. A 4. A 5. A 6. B

Answer:100 times

Step-by-step explanation: Math

An item is regularly priced at $41. Ivan bought it at a discount of 55% off the regular price.

Answers

Answer:

22.55

Step-by-step explanation:

Answer:

22.55

Step-by-step explanation:

55% of $41 is 22.55. I found this by doing 41*.55

Plz do this this is graphing

Answers

350 because you follow the x and it’s 4 and go up following the line, and it’s in the middle of 400 and 300 so 350

evaluate this pleaseeeeee​

Answers

Your answer to this would be c)29
The answer is c) 29

please help me with this i will mark brainliest and you can get a cookie

Answers

The answer is 5:4
Nope it helped

pls help me:( I dont knowwwww

Answers

Answer:

Where do u want help at??

Answer:

Step-by-step explanation: you don't know what whatever it is I can help or contact a tutor we can be friends and I can help you solve things!

I'LL GIVE BRAINLIEST:

B or D

Answers

Answer:

bbbbbbbbbbbbbbbbbbbbbbbbbbbb

Step-by-step explanation:

Answer: B

Step-by-step explanation:

Other Questions
Find the value of x.2x20O A. 35B. 45O C. 10D. 80 help me out pls , dont answer if you have no clue of what the answer is .. thats giving false information answer if you KNOW it ... not jus cause you want POINTS cause that can get you reported immediately . Read the excerpt from The Monsters Are Due on Maple Street.DONAnd [Les Goodman] never did come out to look at that thing that flew overhead. He wasn't even interested.(he turns to the faces in the group, his face taut and serious.)Why? Why didn't he come out with the rest of us to look?CHARLIEHe always was an odd ball. Him and his whole family. Real odd ball.--------------What do Dons words suggest about him?Don is very fond of Les Goodman.Don is an alien from outer space.Don is suspicious of Les Goodman.Don is a patient and thoughtful man. Two sides of a right triangle measure 7 units and 3 units.What is the area of the square that shares a side with the third side of the triangle? PLEASE HELP MEEEThe term "Antebellum" comes from Latin, meaning "drag and drop answer here." It refers to the period from drag and drop answer here tothe beginning of the Civil War in 1860. There were some important social classes that existed during that time.The drag and drop answer here was made up of the richest, wealthiest people. They usually owned large drag and drop answer here andlived in the country. These plantations grew crops like drag and drop answer here or tobacco. This class also owneddrag and drop answer here, usually around 20 of them. This class was the smallest of the classes, but it was also the most powerful.The drag and drop answer here was made up of people like drag and drop answer here , lawyers, and businessmen. They usually lived indrag and drop answer here and were well educated. They usually did not own many slaves, if any at allThe drag and drop answer here was a large, uneducated class. They usually did not own any land and had few skills.There were also many slaves in the Antebellum South. Slaves were drag and drop answer here who were considered property by theirowners. They were often treated very poorly by their masters and had no legal rights. About ding and drop answer here % of the populationwas made up of slaves. 7. How much energy is stored in a rubberband that is stretched 0.5 meters if thespring coefficient of the rubberband is 2.2 N/m?*Answer? Jack wanted to measure the weight of his luggage at the airport before departure. He was surprised to see that it weighed 23.6 kg. Then he stood on the weight with and without his luggage and understood that the scale is malfunctioning as the last two weights of 91.2 kg and 65.5 kg were obviously off. What was the true weight of his luggage? how does our water use affect the bay-delta ecosystem? find the value of a and b What single transformation was applied to triangle A to get triangle B? Can anyone help me with this question please Do not answer if you do not know. Ill mark as brainliest. What is cancer?Group of answer choicesDivision of sex cellsA disease that attaches to your cellsA disease similar to a virus that can infect any cell of the bodyUncontrolled mitosis of cells How does a production possibility chart assist in outlining opportunity cost?It compares profit potential of one product to another.-lt compares production cost of one product to another.It compares production numbers of one product to another.-It compares consumer demand of one product to another. Give specific details about the exposition, rising action, climax, falling action, and resolution. Your response should address each element of plot. "The very generous saleslady gave me a big discount." In this sentence, GENEROUS is an adverb. True or False? Challenges of workers in Mexico and Central America Please help me with this. What is the slope of the function?a) -10b) -5c) 5d) 10 ASAP!!! Will give brainliest!!!Which claim best responds to the writing prompt?A new statewide education proposal plans to separate middle schoolclassrooms into boy-only classes and girl-only classes. The championsof this proposal believe girls and boys learn better when they areseparated. Do you think separate classes will have a positive effect onmiddle schoolers? Write a letter to the state education departmentdiscussing your view on the proposal. Be sure to give reasons for yourpoint of view.A. While the gender divide in classrooms is important, the biggestfactor affecting the academic success of teens is how wellclassroom lessons relate to real life.B. Separating boys and girls will have a negative impact on today'steens, because mixed-gender classrooms have a more positiveeffect on education.C. Classrooms should have a mixture of boys and girls because it isimportant for students to learn to get along and work with peoplewho are different from them.D. Some educators believe that boys tend to learn in more hands-on,active ways, while girls usually like to spend a lot of time workingin groups and talking,Zoe Need answer fast anyone plzzz A cyclist rides a distance of 36 km at an average speed of 16 km/h.Calculate the time taken to complete this ride. Give your answer in hours and minutes.Please Help!