Mathematics Middle School

IF YOU R GOOD AT CALCULUS PLZ HELP AND IF U STEAL POINTS YOU GET REPORTED


If an object is dropped from a height of 55 feet, the function d=-16t^2+55 gives the height of the object after t seconds. Graph this function. Approximately how long does it take the object to reach the ground (d= 0)?

Answers

Answer 1

Answer:

To find the time to reach ground solve - 16t^2 + 55 = 0

t^2 = 55/16

t = sqrt55 / 4 = 1.85 seconds

Step-by-step explanation:

Related Questions


HELP PLEASE ITS DUE IN 10 MINUTES

Answers

Easy. A would be correct
A is the correct answe

Can someone please help my teacher just put the question as


b = 14 ft, c = 20 ft


and I am so confused!!

Answers

Answer:

I am not sure because this is just an expression but I have a feeling I know where your teacher is going with this.

Step-by-step explanation:

She is saying the variable B stands for 14 feet and the variable C is 20 feet.

I really need help with this please :o

Answers

I believe it is B or D

please help ill give brainliest

Answers

Answer:

90%

Step-by-step explanation:

I checked

hiii help i will put brainliest!

Answers

Answer:

36 feet

Step-by-step explanation:

[tex]A=(4x+1)^{2}[/tex]

[tex]P = 4(4x+1) = 16x+4[/tex]

[tex]16(2)+4 = 36ft[/tex]

[tex]Perimeter = 36ft[/tex]

36 feet is the answer

Jayne bought between 2 and 3 pounds of granola. If the amount of granola she bought was closer to 2 pounds, what is a possible mixed number that could represent the amount she bought?

Answers

Answer:

2 1/4 pound of granola.

Step-by-step explanation:

Imagine a dollar. There's always 4 quarters in a dollar. One is 25 cents of 1/4 of a dollar. Two quarters is 50 cents of 1/2 of a dollar. Three quarters is 75 cents or 3/4 of a dollar and 4 quarters is a whole dollar.

PLS HELP ASAP 30 POINTS

Answers

Theoretical probability=45%
Experimental probability=75%

What is the approximate rate of change in the total calories Leo burned between 40 and 70 minutes?

Answers

Answer:

Is that the second part of the question? Cuz dat dont make no sense

Im Leo lm.ao

background info-A rabbit started at point 0 and made 3 jumps: a jump of 4 units, then a jump of 2 units, and then a jump of 1 unit. We do not know the direction of either jump. Where on the number line can this rabbit be now? The answer to this is -7, - 5, - 3, - 1, 1, 3, 5, and 7
Actual question-Next time, the rabbit from the previous problem started at 10. Where on the number line can he be after the same three jumps?

Answers

Answer:

im confused

Step-by-step explanation:

i hope you find the answer tho

(Compound) Probability: Rolling a die and getting a number other than 4 twice in a row. Pls help :'D

Answers

Answer: 1/36

Step-by-step explanation:

you get 1/6 for the chance of getting the nunmber, and 1/6X1/6=1/36

1/36
Hope this helps:)

Complete the table and graph the function.

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Answer:

Step-by-step explanation:

You go to the negatives

Which list is in descending order?

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The answer is B because if you convert all of them to decimals you get it in that order.

Help me, please I'm a little confused I'm very perturbed..

Answers

Answer:

2 6/15 + 2 10/15 or the first one

Step-by-step explanation:

Im so glad I could help! I hope you pick my answer as the Brainliest!

Answer:

Step-by-step explanation:

Since this is a test, I'll give a hint.

This problem can be a little confusing, but thats ok! The problem is trying to make two models, (each model is a number) and asking you to find what the addition sentence is.

If that makes you confused, then that's probably the right response! The first thing you would need to know is what are they dividing the whole circles of? Thirds? Seconds? Sixths?

You would then need to know how many whole numbers are there. "Whole numbers" are basscially fully shaded circles.

Hope this helps!

Original price: $60; markup: 15%

Answers

With the markup the price would be $40
I think that it would be 51 dollars

Write the number that is equivalent to the expanded form.

(2 x 102) + (3 x 100) + (4 x 1/10) + (3 x 1/000)

Answers

Answer:

23,958

Step-by-step explanation

twenty-three thousand nine hundred fifty-eight

23,958!! There ya go

It costs $3.45 to buy 1/2 lb. of chopped walnuts. How much would it cost to purchase 7 lbs. of walnuts?
please hurry guys qwqwqwqwq

Answers

Answer:

3.45/0.5= 6.9

6.9*7=48.3

Step-by-step explanation:

Write the recursive formula for each geometric sequence
11. 1, 7, 49, 343, ...

Answers

Answer:

11.1,7,49,343, 365

Step-by-step explanation:

answer:an=an-1•7
plug the answer into the formula i’m not entirely sure this is the answer

Add 0.79 and 0.05. How many tenths are in the sum? ö

Answers

The answer is 8 tenths

there is two part question is on picture
correct:brainliest

Answers

Answer:

the first one is independent

the second one is dependent

Step-by-step explanation:

Answer:

The number of dollar bills, d, is the independents variable.

The number of quarters, q, is the depenedent variable.

Step-by-step explanation:

The number of quarters depend on the amont of dollar bills, so the quarters are the depenent variable.  

Timothy bought 4 packages of cat food and 3 packages of dog food. Each package of cat food contained 7 cans, and each package of dog food contained 3 cans. How many more cans of cat food than dog food did Timothy buy?

Answers

Answer:

19

Step-by-step explanation:

4 times 7 is 28

3 times 3 is 9

28-9=19

Cat food = 4 x 7= 28
Dog food = 3 x 3 = 9

28-9= 19
Timothy bought 19 more cans of cat food

The Wagner school store is having a sale! At the sale this week, a life sized stuffed animal of Wagner’s mascot is being sold for $158.40. This is a 52% discount of the original price. What is the original price? If necessary, round to the nearest cent.

Answers

Answer:

$330

Step-by-step explanation:

Please see the attached picture for the full solution.

☆ There is no need to round the answer off to the nearest cents as the answer is a whole number.

PLEASE HELP ASAP!
Simplify. Please show your work.
3a+10b+4a-4b

Answers

sorry my handwriting is bad but does this help?

I don't understand this- (math is my really WEAK point :') )

Answers

Answer:

A. 1/10

Step-by-step explanation:

You have to switch the operations for division to multipliation

what is the interception point of
y=-1/3x+1
and
y=2/3x+4

Answers

Answer:

(-3,2)

Step-by-step explanation:

For further questions or graphing questions I would recommend the website desmos graphing calculator it really helps !!

Answer:

(-3,2)

Step-by-step explanation:

I used desmos for this. Or you could just do the y=y method.

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I would have to say J.

Step-by-step explanation: Now a square has 4 sides, all equal as well. (I am on PC so I cant do the little 2 on J.) so 2 times little 2 is 4, because with these for example, 2 times little 3 would be 2 times 2 times 2. So 2 times little2 -9 is the most reasonable answer!

I need help plz will give brainliest

Answers

Answer:

$10,000

Step-by-step explanation:

Cross multiply and divide by 55.

Hope this helps!

$10000

Step-by-step explanation:

5500 = 55% × amount paid for the car(p)

5500 = 55÷100 × p

5500×100 = 55p

550000 = 55p

550000÷55 = 55p÷55

10000 = p

Brady recorded the number and color of cars in the parking lot. 45% of the cars in the parking lot were white. If Brady counted a total of 81 white cars, how many cars did he count in the parking lot?

Answers

Answer:

180 cars

Step-by-step explanation:

Like you can see in the picture, I like to set up a proportion, so 81 over X and 45 over 100. Then, you can cross multiply, so 81 x 100 = 8100 and then divide, 8100 ÷ 45 = 180, your answer!

180 is the answer sorry if I’m late to answer

Find at least three examples of the use of percents in real-world settings. Use newspapers, magazines, video clips, Internet articles, or other resources. Use one of your examples to create a real-world problem for other students to solve.

A. Post the pictures, articles, recordings, or links of your three examples to the discussion board as well as the problem you created from one of your examples. Be sure to give a short description of what you found.

B. Read another student’s post and solve their example problem.

C. Review for accuracy and respond to replies to your post.

Answers

Answer: a

Step-by-step explanation:

Answer:A. Post the pictures, articles, recordings, or links of your three examples to the discussion board as well as the problem you created from one of your examples. Be sure to give a short description of what you found.

Step-by-step explanation:

Which of the following relations represent functions? Select all that apply.
please helpp

Answers

B1 and C2 cause that is how you find out the function of the pairs

State how many solutions each equation has. (Will mark brainlest)

2z - 6 = 2(z + 2) - 10

Answers

I’m pretty sure the answer is no solution.

Answer:

There no solution or 0

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