3. Greg is in a car at the top of a roller-coaster ride. The distance, d(t), of the car
from the ground as the car descends is determined by the equation d(t) = 144 - 167,
where t is the number of seconds it takes the car to travel down to each point on theride. How many seconds will it take Greg to reach the ground?

Answers

Answer 1

Answer: 3 seconds

Step-by-step explanation:

Hi, the correct equation is d (t) = 144- 16 t²

So, to answer this question we have to analyze the information given:

When the car reaches the ground the distance, d (t) of the car from the ground is 0.

0 = 144- 16 t²

Solving for t:

16 t² =144

t²=144/16

t²= 9

t = √9

t = 3 seconds  

Feel free to ask for more if needed or if you did not understand something.  

Answer 2

Answer:

C

Step-by-step explanation:

t>3


Related Questions

Here is a pattern made up of tiles.
How many tiles will be in the 5th Pattern?

Answers

Answer:

26 tiles

Step-by-step explanation:

In the picture attached, the pattern is shown.

From the picture, we can see that:

the 1st pattern has 6 tilesthe 2nd pattern has 6 + 5 = 11 tiles the 3rd pattern has 11 + 5 = 16 tiles

Therefore, the next patterns will have:

4th pattern, 16 + 5 = 21 tiles5th pattern, 21 + 5 = 26 tiles

Which ordered pair is a solution of the equation?
y= 7x - 3
Choose 1 answer:

Answers

Answer:

[tex]\frac{3}{7}, -3[/tex]

Step-by-step explanation:

[tex]7x-3=0[/tex]

[tex]7x-3+3=0+3[/tex]

[tex]7x=3[/tex]

[tex]\frac{7x}{7}=\frac{3}{7}[/tex]

[tex]x=\frac{3}{7}[/tex]

[tex]\left(\frac{3}{7},\:0\right)[/tex]

[tex]y=7\cdot \:0-3[/tex]

[tex]y=0-3[/tex]

[tex]y=-3[/tex]

[tex]\left(0,\:-3\right)[/tex]

Answer:

3/7, 0

Step-by-step explanation:

7x-3=0

7x = 3

x = 3/7

substitute

y = 7(3/7) - 3

7s cancel out

y = 3 - 3

y= 0

This two-way frequency table gives the results of a screening test for heart disease conducted by determining the cholesterol level in the blood
samples of 750 patients.
Question 1
Using the two-frequency table, compute the probability of having high cholesterol. Or Phigh cholesterol)

Answers

Answer:

The probability of having high cholesterol = 0.496

Step-by-step explanation:

Given frequency data table

                                                         cholesterol level

                                          Normal           High              Total

Heart diseases      Yes       11                   223                  234

                               No       367                149                   516

                             Total        378               372                 750

Given data

The Cholesterol level is high  n ( High cholesterol) = 372

Total n( S) = 750

The probability of having high cholesterol level

                           P( E) = [tex]\frac{n(E)}{n(S)} = \frac{372}{750} = 0.496[/tex]

Mike’s house has three bedrooms. Each bedroom has a closet. The closet in the first bedroom measures 5 ft in length. 3 ft in width, and 7 ft in height. The closet in the second bedroom measures 5 ft in length, 4 ft in width, and 7 ft in height. The closet in the third bedroom measures 5 ft in length, 8 ft in width, and 7 ft in height. How much space is in all three closets combined? 3 ft in width, and 7 ft in height. The closet in the second bedroom measures 5 ft in length, 4 ft in width, and 7 ft in height. The closet in the third bedroom measures 5 ft in length, 8 ft in width, and 7 ft in height. How much space is in all three closets combined?

Answers

Answer:

7 ft

Step-by-step explanation:

Help me factorise these please :)

Answers

Answer:

Tell me if i'm wrong and stuff

Answer:

A:x ( x + 3 )

B:2 x ( x − 4 )

C:3 x ( 2 + 3 x 2 )

D:4 x 2 ( 3 x − 1 )

Step-by-step explanation:

hope this helps

mark me brainly

Plz need help with this question asap!!!

Answers

Answer:

A.

Step-by-step explanation:

The expression (1/4) * d + 7 really just means "one-fourth times d, plus 7"

Option A says the same expression, as we know that the product means multiplication, and that we add 7 at the end. For this reason, it is the correct response.

I hope this helps!

hello,

here is your answer:

**********

The product of one-fourth and a number, plus seven.

**********

hope this helped,

:)

A polynomial function has a root of –7 with multiplicity 2, a root of –1 with multiplicity 1, a root of 2 with multiplicity 4, and a root of 4 with multiplicity 1. If the function has a positive leading coefficient and is of even degree, which statement about the graph is true?

Answers

Answer: the graph of the function is positive on ( -infinity, -7)

Reason: f(-8)= 840,000a
840,000a is a positive number

Answer:

The graph of the function is positive on (-∞ –7).

Step-by-step explanation:

Yesterday, Bridget's Snack Shack went through 2 bottles of ketchup. If they used 2 3/5 times
as much mustard as ketchup, how many bottles of mustard did they go through?
Write your answer as a fraction or as a whole or mixed number.
bottles
Submit
I don't know this yet >

Answers

Answer: 26/5

Step-by-step explanation:

Mustard used was 2 3/5 as much as ketchup =

2 x 2 3/5

= 2 x 13/5

= 26/5

Find the measure of an exterior angle of a regular polygon with 36 sides

Answers

Answer: The sum of the measures of the exterior angles in a convex polygon is 360 degrees (this can be proven using the sum of the interior angles). Since each exterior angle measures 36 degrees, there are 10 sides to the polygon.

Step-by-step explanation:

For f(x)-3x+1 and g (x)-x^2-6 find (f•g)(x)

Answers

Answer & Step-by-step explanation:

For this problem, all we have to do is multiply the two expressions.

f(x) = 3x + 1

g(x) = x² - 6

Now, let's set up our equation for multiplication.

(f * g)(x) = (3x + 1)(x² - 6)

(f * g)(x) = 3x³ - 18x + x² - 6

(f * g)(x) = 3x³ + x² - 18x - 6

So, (f * g)(x) is 3x^3 + x^2 - 18x - 6

the correct Answer is

3x^3+x^2-18x-6

A population proportion is . A sample of size will be taken and the sample proportion will be used to estimate the population proportion. Use z-table. Round your answers to four decimal places. Do not round intermediate calculations. a. What is the probability that the sample proportion will be within of the population proportion? b. What is the probability that the sample proportion will be within of the population proportion?

Answers

Complete Question:

A population proportion is 0.4. A sample of size 200 will be taken and the sample proportion p will be used to estimate the population proportion. Use z- table Round your answers to four decimal places. Do not round intermediate calculations. a. What is the probability that the sample proportion will be within ±0.03 of the population proportion? b. What is the probability that the sample proportion will be within ±0.08 of the population proportion?

Answer:

A) 0.61351

Step-by-step explanation:

Sample proportion = 0.4

Sample population = 200

A.) proprobaility that sample proportion 'p' is within ±0.03 of population proportion

Statistically:

P(0.4-0.03<p<0.4+0.03)

P[((0.4-0.03)-0.4)/√((0.4)(.6))/200 < z < ((0.4+0.03)-0.4)/√((0.4)(.6))/200

P[-0.03/0.0346410 < z < 0.03/0.0346410

P(−0.866025 < z < 0.866025)

P(z < - 0.8660) - P(z < 0.8660)

0.80675 - 0.19325

= 0.61351

B) proprobaility that sample proportion 'p' is within ±0.08 of population proportion

Statistically:

P(0.4-0.08<p<0.4+0.08)

P[((0.4-0.08)-0.4)/√((0.4)(.6))/200 < z < ((0.4+0.08)-0.4)/√((0.4)(.6))/200

P[-0.08/0.0346410 < z < 0.08/0.0346410

P(−2.3094 < z < 2.3094)

P(z < -2.3094 ) - P(z < 2.3094)

0.98954 - 0.010461

= 0.97908

write this trinomial in factored form 4b^2 + 17b + 15

Answers

Answer:

(b + 3)(4b + 5)

Step-by-step explanation:

Given

4b² + 17b + 15

Consider the factors of the product of the b² term and the constant term which sum to give the coefficient of the b- term.

product = 4 × 15 = 60 and sum = 17

The factors are 12 and 5

Use these factors to split the b- term

4b² + 12b + 5b + 15 ( factor the first/second and third/fourth terms )

= 4b(b + 3) + 5(b + 3) ← factor out (b + 3) from each term

= (b + 3)(4b + 5) ← in factored form

While bowling with friends, Brandy rolls a strike in 8 out of 10 frames. What is the experimental probability that Brandy will roll a strike in the first frame of the next game? Enter your answer as a simplified fraction.

Answers

He rolled 8 strikes out of 10 tries.

This make the probability of rolling a strike 8/10 which reduces to 4/5

The answer is 4/5

Which of the following has a denominator of 6?
a. 6 2/3
b. 16/18
c. 6/7
d. 1/6

Answers

Answer:

D

Step-by-step explanation:

The denominator is the bottom number in a fraction, while the numerator is the top number.

numerator/denominator

Let's analyze the answer choices.

A. 6 2/3

The bottom number of the fraction is a 3, so this cannot be correct.

B. 16/18

The denominator here is 18, so this choice is also incorrect.

C. 6/7

In this fraction the numerator is a 6, but the denominator is a 7, so this choice is also wrong.

D. 1/6

This choice is the correct answer. The denominator, or bottom number is a 6.

The answer is D. 1/6.

Answer:

D

Step-by-step explanation:

Numerator/ denominator

Upper part of a fraction is numerator & down part of the fraction is denominator

what is the inverse of the function f(x) equals 1/9 X +2

Answers

Answer:

1/9x-2

Step-by-step explanation:

Chen writes down a two digit number. He finds that if he swaps the digits of the number round, the new number he creates is three more than one third of the original number. What was the original number?

Answers

Answer: 27

Step-by-step explanation:

Let original number be 27,

swapping round we get 72

1/3 rd of 72 = 24

24 + 3 = 27

Answer:

Your answer is 27.

Step-by-step explanation:

I hope this helps!

An airplane is flying at 350 ​km/h in a direction of 349 degrees. Find the westerly and northerly components of its velocity.

Answers

The westerly and northerly components of the velocity of a flying airplane are 343.5 km/h and 66.7 km/h respectively.

Given in the question,

The airplane is flying at 350km/h in a direction of 349 degrees.

so, the airplane is flying 360-349=11degrees from the east as shown in the image.

The northerly component is 350*sin11degrees and the westerly component is 350*cos11degrees.

To know more about Velocity component problems,

https://brainly.com/question/25253085

Tell whether each statement is a proportion:

3:9 = 6:18
28:7 = 64:16
95:100 = 17:20
60:80 = 14:16
200:300=24:36

Answers

Answer:

1. Yes

2. No

3. No

4. No

5. Yes

Step-by-step explanation:

Do you mean equal proportion?

1. 3 : 9 = 6 : 18 TRUE because 3 : 9 = 1 : 3 and 6 : 18 = 1 : 3

2. 28 : 7 = 64 : 16 FALSE because they are just not related.

3. 95 : 100 = 17 : 20 FALSE because the closest they get are 19 : 20 ≠ 17 : 20

4. 60 : 80 = 14 : 16 FALSE because the closest they get are 60 : 80 = 6 : 8 and 14 : 16 = 7 : 8

5. 200 : 300 = 24 : 36 TRUE because 200 : 300 = 2 : 3 and 24 : 36 = 2 : 3

Question #2 [tex]5x+9\leq 4[/tex]

Answers

x is less than or equal to -1

Write the equation of the line with the following characteristics. Parallel to y=7x+2 through the point (0,0)

Answers

Answer:

y = 7x - 5

Step-by-step explanation:

y = 7x+2 we see the gradient is 7 (x 0) + 2 = Since the line is parallel to y= 7x +2

The new line has a slope of 7 + 2 as the intercept at y.

y - 0 = 7 ( x - 0)

y - 1/7 = x - 0

y = 7x - 5

As 7 -5 = 2

Hence equation of line becomes y=7x.

What is Equation of line?

You must ensure that both equations have the same slope in order to find an equation for a line that is parallel to another. The m reflects your slope value in the general equation of a line, y=mx+b.

How to solve?

Now given line y=7x+2 ,this line is parallel to another line which passes through origin(0,0)

Hence putting 0,0 in general equation to find equation of parallel line

⇒y=mx+c

⇒0=m(0)+c

⇒0=c

where m=7 as parallel lines have same slope.

Hence equation of line becomes y=7x.

Learn more about equation of lines https://brainly.com/question/13763238

#SPJ2

five consecutive multiples of 3 add up to 105. What is the second smallest number

89 points!

Answers

Answer:

18

Step-by-step explanation:

Let's call the first number n. The next four numbers will be n + 3, n + 6, n + 9 and n + 12. Then, we have

n + n + 3 + n + 6 + n + 9 + n + 12 = 105

5n + 30 = 105

5n = 75

n = 15

The second smallest number is n + 3 which is 15 + 3 = 18.

Answer:

18

Step-by-step explanation:

Question 7 Multiple Choice Worth 1 points)

(03.03 LC)

Triangle MNO is dilated to form new triangle PQR. If angle

is congruent to angle R. what other information will prove that the two triangles are similar by the AA similarity postulate?

Side ON is congruent to side RQ.

Angle Nis congruent to angle

Side MN is congruent to side PQ.

Angle M is congruent to angle Q.

Please help

Answers

Answer:

Angle N is congruent to Angle Q.

Step-by-step explanation:

If triangles MNO and PQR are similar, then the corresponding sides are propotional and the corresponding angles are congruent.

Angle M corresponds to Angle P.Angle N corresponds to Angle Q.Angle O corresponds to Angle R.

So, we know by gvein that angles O and R are congruent. We only need another angle congruence to use the AA postulate of similarity.

Therefore, the right answer is the second choices, because Angle N must be congruent to Angle Q.

Answer: B: Angle N isn’t congruent to angle Q

Step-by-step explanation: You have to follow the letters MNO and PQR. We know O is congruent to R to get another angle we would use Angle N and Q because of the order since Angle M and angle Q aren’t in the same order and we’re not dealing with sides only Angles.

The number of girls in a classroom is greater than the number of boys. There are more than girls. Write system of inequalities to model this situation. Use x to represent the number of boys and y to represent the number of girls

Answers

Answer:

Step-by-step explanation:

Required

Represent the relationship between population of girls and boys

From the question, we have that

[tex]Boys = x\\Girls = y[/tex]

Given that y is greater than x in the classroom;

One of the keywords in the given data is "Greater than"

The inequality to represent the system is the greater than sign;

In other words, >

Bringing x, y and > together to form a complete inequality; we have

[tex]Girls > Boys[/tex]

Replace Girls with y and Boys with x

[tex]y > x[/tex]

In quadrilateral PQRS below, sides PS and QR are parallel for what value of x ? Individual Question 158 132 120 110 70

Answers

Answer:

[tex]x=112[/tex]

Step-by-step explanation:

The opposite angles of a parallelogram are equal.

megan is performing a science experiment on a particular type of bacteria.she starts with 10 cells and she finds that the number of bacteria can be modeled by the following equation where y is the number of bacteria and t is the number of hours since the experiment started

Answers

Answer:

You can change the number of bacteria which is y, by the number of hours. So the equation would be like = t is 10y. ( In this case, y is  1 cell )

Step-by-step explanation:

I hoped this helped!

31/x=248/320

Solve for x

Answers

Answer:

X =(31×320)÷248

=9920÷248

X =40

What is the slope-intercept equation of the line below?
O A. y = -2x-1
B. y=-2x+1
O C. y = 2x + 1
D. y = 2x - 1

Answers

Answer:

B. y=-2×+1

Step-by-step explanation:

2×+y-1=0

so,y=-2×+1 is the slope intercept

Find a positive angle less than 360° that is coterminal with the given angle.
620°
A positive angle less than 360° that is coterminal with 620° is...​

Answers

Answer:

260

Step-by-step explanation:

Please help!!! The answer is written by listing the letter corresponding to each proportion.

Answers

Answer:

A.

B.

D.

E.

H.

Step-by-step explanation:

So if it's cross multiplication, the original has 5 possibilities.

There is:

x : u = y : t,

x : y = u : t,

t : y = u : x,

u : x = t : y

y : x = t : u

A,B,D,E,H is the answer

is it possible to construct a triangle with the given side lengths 6,7 and 11 units ,if not explain ​

Answers

Answer:

Yes!

Step-by-step explanation:

The smaller sides sum should be greater (NOT EQUAL) than the longest side's sum.

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simplify the equation below and find the value of x4/2x-5)= 20 Which of the following are true? If false, explain briefly. a. A very high P-value is strong evidence that the null hypothesis is false. b. A very low P-value proves that the null hypothesis is false. c. A high P-value shows that the null hypothesis is true. d. A P-value below 0.05 is always considered sufficient evidence to reject a null hypothesis. In the future, will people prefer the cities to live in In 2005 a house was purchased for $280,000 andin 2013 it was sold at $334,000. Assuming thatthe value of the house increased at a constantannual rate what will be the price of the house inthe year 2018? Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.Match each division expression with the correct quotient.6x - 85x - 82x + 68r - 26x + 52x + 550 + 65.1 2A:(1812 + 150) - 3.1B:(16x2 + 48x) - 81C:(56x2 - 14x) = 7xD:(20x2 32x) = 4x Carthaginians and Greeks learned to navigate from the:EgyptiansVikingsPhoeniciansAmericans Round to 3 significant figures.1.235 Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!! what type of solutions does this equation have A taxi charges a flat rate of $3.00 plus $1.50 per mile. If Xander has $45.00, what inequality represents m, the distances in miles he can travel in the taxi? your friend on the school wrestling team uses diuretics to help him "make weight." He says it's not harmful. What would be your reply? 39 calls in 6.5 days is ______ calls per day? * Course project 2- Outline Hector draws a triangle with exactly two sides that have the same length. Which of the following are possible ways to classify the triangle by its angle measures and side lengths? Select all that apply. A. right and isosceles B. acute and isosceles C. obtuse and scalene D. acute and scalene E. obtuse and isosceles Was the ownership of slaves permitted west of the 120 W longitude? In GHI, the measure of I=90, IG = 6.8 feet, and HI = 2.6 feet. Find the measure of G to the nearest degree. Who is responsible for managing the state budget ?? You start driving north for 9 miles, turn right , and drive East for another 40 miles. At the end of driving, what is your staight line distance from your starting point? From a point on the ground the angle of elevation of the top of a tower is x. Moving 150 meters away from that point the angle of elevation was found to be y .If tan x=3/4 and tan y=5/7 find the height of the tower. One t-shirt is sold for every 5 people who attend a concert.what is one way to write the unit rate in words?