Mathematics Middle School

- The position of an object moving in a straight line
is given by s = 2t^2 - 3t, where s is in meters and t
is the time in seconds the object has been in
motion. How long (to the nearest tenth) will it
take the object to move 11 meters?


PLEASE HELP AND SHOW WORK ILL GIVE 20 PTS

Answers

Answer 1

Answer:

s(t) = 2t^2-3t

19 = 2t^2-3t

2t^2-3t-19=0

t = [3 +- sqrt(9-4*2*-19)]/4

t = [3 +- sqrt(161)]/4

t = [3 +- 12.6886]/4

Positive answer:

t = [3+12.6886]/4

t = 3.9221 seconds

Step-by-step explanation:

Related Questions

answer this correctly for 5 stars please!

Answers

Then I was all like Bataks 2.14 irux

The radius of the SEMI-CIRCLE is 4 inches. Find the total area created by the SEMI-CIRCLE and TRIANGLE.
A.81 in²
B.78in²
C.53in²
D.39in²

Answers

Answer: The correct answer is 39

Step-by-step explanation:

The answer is d
39 in

Can someone help me? Please?

Answers

1. false
2. false
3. true

It’s
False
False
True

Find the annual interest rate.

I= $164.50, P= $940, t= 2.5 years

___%

Answers

Answer:

250.35

Step-by-step explanation:

The interest rate is about 7% per year.

What is simple interest?

Simple interest is the amount of interest charged on a specific principal amount at a specific interest rate. Compound interest, on the other hand, is the interest that is computed using both the principal and the interest that has accumulated over the preceding period.

We can use the formula for simple interest to find the annual interest rate:

I = P * r * t

where I is the interest, P is the principal (the amount borrowed or invested), r is the annual interest rate as a decimal, and t is the time in years.

Plugging in the given values, we have:

164.50 = 940 * r * 2.5

Dividing both sides by 940 * 2.5, we get:

r = 164.50 / (940 * 2.5)

r ≈ 0.07

Multiplying by 100 to convert to a percentage, we get:

r ≈ 7%

Therefore, the annual interest rate is approximately 7%.

Learn more bout simple interests here:

https://brainly.com/question/22621039

#SPJ2

help pls it's a math question

Answers

if i could see the whole spinner i could answer this for you!
we need to see the whole spinner

pls help i will give u brainlesit!i just need help with part a and part c please!:D

Answers

I can help with Part C:

take the hotdogs (25) and divide them by the minutes ( 5)

25 divided by 5 = 5

5 hotdogs in a minute

Answer:

Part A: The x axis should be labeled as "Cups of Strawberries" and the y axis should be labeled as "number of bananas"

Part B: This means that for every one cup of strawberries, you need 2 and a half of a banana

Step-by-step explanation:

A building in the shape of a pyramid was recently built. Each side of the pyramid’s square base has a length of 40 feet and the pyramid’s height is 60 feet. What is the volume of the pyramid?

Answers

Answer:32,000ft^3

Step-by-step explanation:

Can someone plz help me :(

Answers

Answer:

The last answer on your last image

Step-by-step explanation:

It’s the last question

Quick i need help thank you, i wil give branliest

Answers

alr thanks for the free points

free points? thanks i guess

i really need this pls helppp

Answers

Answer:

Help with what?? I'll try

I’ll try to help but there’s nothing to help with hahaha :)

Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz answer fast

Answers

Sorry I’m not too sure about this

456.9 - 87.34
Soon please!!

Answers

Answer:

369.56

Step-by-step explanation:

I just used my calculator tbh.

Have a good day!

369.56 is the correct answer

On a game show, a contestant randomly chooses a chip from a bag that contains numbers and strikes. The theoretical probability of choosing a strike is 3/10. The bag contains 9 strikes. How many chips are in the bag?


Will give brainliest if correct!!!

Answers

If there are 3 strikes per 10, there should be 9 strikes per 30.
So there are 30 chips in the bag.

1. Nelson had leftover pie. He wanted to give his 3
friends the leftover pie to share. If Nelson had 13 of a pie
left over for his friends to share, how much pie will each
friend get?

Answers

Each friend would get 11/100 of the pie
1/9 of pie (1/3 of a slice)

Answer this question please and thank you

Answers

Answer:

Not a 100% sure but the first one is 0.064

The Second is 1

Third is also 1

Step-by-step explanation:

Answer:

1. 0.064

2. 1

3. 1

4. 9^2 or 3^4

Step-by-step explanation:

1. 0.4^3 means to do 0.4 times itself 3 times

2 and 3. Anything to the power of 0 equals 1

4. 9x9 - 9^2

3x3x3x3 - 3^4

The value of t can be determined by using the expression 2.75s. Which table represents the relationship between the values of t and s?

I'll mark if correct!! PLS HELPPP!!

Answers

Answer:i know it's D

laura deposits $2000 into an account that pays simple interest at a rate of 2% per year. How much interest will she be paid in the first 6 years?

Answers

She will be paid $2,240.

The equation to use for this is: A=P(1+rt)

More specifically:
A = 2000(1 + (0.02 × 6)) = 2240
A = $2,240.00

HELP ASAP!! I AM STUCK IN A MESS!! Which is correct !!

Answers

Answer:

A

Step-by-step explanation:

There are five cookies. In B, it says [tex]\frac{3}{5} x\frac{2}{4}[/tex] when it should be A: [tex]\frac{3}{5} x\frac{2}{5}[/tex].

Hope this helps. Have a nice day.

Marcus is making a square pyramid out of cart board. He drew a diagram of a square pyramid as shown below. Based on Marcus’ diagram, how many square inches of cardboard

make up this square pyramid?

Answers

Answer:986-094586

Step-by-step explanation:

What is a good estimate for this angle measurement?

A. 150 degrees
B. 135 degrees
C. 110 degrees
D. 90 degrees

Answers

Answer: I would say 135

Step-by-step explanation:

Help me plsssss
A square is shown below. Which expression can be used to find the area, in square units, of the shaded triangle in the square?

A square with a side length of 8 units is shown. A diagonal is drawn with one section shaded inside the figure.

fraction 1 over 2 ⋅ 4 ⋅ 4
fraction 1 over 4 ⋅ 4 ⋅ 4
fraction 1 over 2 ⋅ 8 ⋅ 8
fraction 1 over 4 ⋅ 8 ⋅ 8

Answers

Answer:

The answer is b and fraction 1 over 2 ⋅ 8 ⋅ 8

Step-by-step explanation:

I'm pretty sure

Answer:

Hence, option 3 is correct.

Step-by-step explanation:

Given,

Side of a square = 8 units

Also,

The shaded triangles base = Height of the triangle = Side of the square = 8 units.

(Sides of a square are always same)

Hence, area of the shaded triangle will be,

[tex] = \frac{1}{2} . \: base \: . \: height[/tex]

[tex] = \frac{1}{2} . \: 8 \: . \: 8 \: (ans)[/tex]

At Mr. Neely bank, the interest rate offered to clients is 4.5% annually. If after three years at the bank he has earned $50 in interest, approximately how much money did he initially deposit? (Round your answer to the nearest dollar!)

Answers

Answer: 9 dollars.
Step-by-step explanation: Just do 4.5/50 x 100

1. A stereo speaker in the shape of a triangular pyramid has a height of 6 inches. The area of the base of the speaker is 11 square inches.
F 22 in.3

G
198 in.3

H
66 in.3

J
33 in.3

2. What is the solution to this equation?
2x + 10 = 28
plz help :(

Answers

okay for number 1, even though there isn’t a question to answer, my best guess would be H, 66 in^3.

i multiplied the height (6) by the base (11) to get the 66.

———

for number 2, here’s what you should do.
2x + 10 = 28
- 10 -10
(subtract 10 from both sides of the equal sign)

you should get..
2x = 18
divide by 2 to get the x by itself..
x=9

and there u go! lmk if i helped u out babe

PLEASE HELP WILL MARK BRAINLIEST!!

Answers

Answer:

B. Most Of The The Data Is From 1 To 6

Step-by-step explanation:

i think it’s the first one “the range is 5”

PLS HELP!! LOOK AT PICTURE!
Find the value of x in the similaur figures.

Answers

Answer:

x=7

Step-by-step explanation:

14/28=x/14

x=7

Answer:

7

Step-by-step explanation:

This is 10 points plz help ( NO LINKS ) ( ONLY ANSWER THIS IF YOU HAVE AN EXPLANATION AND IF YOU KNOW WHAT THE ANSWER IS)

Answers

Answer:

F

Step-by-step explanation:

Here again my mom wants me to do math and I’m not that smart

Answers

Answer:

$44.55

Step-by-step explanation:

14.85 x 3

14.85 + 14.85 + 14.85

answer:
$44.55
explanation:
$14.85 times 3 is $44.55

432 student attend Penny Creek Elementary. Yesterday, 54 students were on a field trip to the zoo. 27 students were home sick. How many students were in class?

Answers

In total there are 432 student and 54+27 students that are sick and on a field trip making a total of 81 student not at school so you do 432-81= 351 students in class.
432 students attend penny creek elementary 81 students are currently not in class that leaves 351 students in class.

2. A landscaper drew a scale drawing of a rectangular yard using the scale, , before beginning to work on the yard.
(a) The landscaper plans to put a fence around the entire yard. How many meters of fencing does she need? Show your work.
(b) The landscaper plans to create a rectangular garden that is the size of the actual yard. What is the area of the garden? Show your work. Answer:

Answers

Answer:A) the answer is 0.28 in meters or 28 in cm

B) the anwser is 0.48 in meters and 48 in cm

Step-by-step explanation:

P=8+6+8+6 = 26cm

A=8x6=48

Trish is ordering t-shirts from a website that charges a certain amount per t-shirt plus a flat rate for shipping. The cost for a given number of t-shirts is shown in the table.

20a. Write an equation to represent the situation. (Write your answer with no spaces, all lowercase letters, and write the slope as a decimal)

20b. What does the slope mean in the context of the situation?

20c. What does the y-intercept mean in the context of the situation?

Answers

Answer:

20a. y = 8.75x - 5.99

20b. slop is the cost of each shirt.

20c. I am not to sure on this one so I am going to guess that it means payment to enter the shop.

Step-by-step explanation:

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