Debbie launched a toy rocket off a hill next to Lake Lakewood. The height h of the rocket in feet above the surface of the lake can be modeled by h = 340 + 100 t − 16 t 2 h=340+100t−16t 2 , where t is the time in seconds after the launch

Answers

Answer 1

Answer:

t = 8.69 s

Step-by-step explanation:

The height h of the rocket in feet above the surface of the lake can be modeled by :

[tex]h=340+100t-16t^2[/tex]

Let we need to find the time to reach the ground. When it reach the ground, h = 0

[tex]340+100t-16t^2=0[/tex]

We need to find the value of t.

t = 8.69 s and -2.45 s

Neglecting negative value,

t = 8.69 s

Hence, it will take 8.69 s to reach the ground.


Related Questions

Help please its not 4/9ths

Answers

the answer is -16 because a perfect square can’t be negative

Answer:

-16

Step-by-step explanation:

[tex]\dfrac{4}{9}=\left(\dfrac{2}{3}\right)^2\\\\25=5^2\\\\121=11^2\\\\-16<0!!![/tex]

The square of each real number is non-negative

ANSWER ASAP PLZ Which expression is equivalent to 24 + 64?

8(3 + 64)
8(16 + 56)
8(3 + 8)
8(16 + 64)

Answers

Answer:

8(3+8)

Step-by-step explanation:

24+64=88

Now you have to find which expression equals 88.

8(3+64)=8x3+8x64=24+512=536

8(16+56)=8x16+8x56=128+448=576

8(3+8)=8x3+8x8=24+64=88

Therefore, 8(3+8) is correct.

Answer:

C

Step-by-step explanation:

8+3 is 11 and 11 x8 is 88 and 24 + 64 is 88

                                    And I have a question for you

                                              are you flvs

Helped need plzs , due by 11:59

Answers

Answer:

x = 10

Step-by-step explanation:

The two triangles are similar, and it says that VUT is similar to EFG so side VT corresponds to side EG which means that 8 is just side VU divided by 2.

This means that side EG is 14 divided by 2 and that is 7.

This results in the equation " 2x - 13 = 7" First, add 13 to both sides of the equation to get rid of the -13. This gives 2x = 20. Then divide both sides by two to cancel out and get rid of the 2 in 2x. This leaves x as 10.

5. What is the perimeter of a rectangle with a length of 9x - 4 and a width of 5x+2?

Answers

Answer:

14x-2

Step-by-step explanation:

In order to find the perimeter we need to add the length and width together. So adding 5x and 9x gives us 14x. -4+2=-2

The perimeter of a rectangle with a length of 9x - 4 and a width of 5x+2 is, 28x-4

What is the perimeter?

Perimeter is a mathematical term, which means total outer boundary of a figure, we define it only for two dimensional figures.

Perimeter = Sum of length of the all the sides

Given that,

length of rectangle = 9x - 4

width of  rectangle =  5x+2

As we know,

Perimeter = Sum of length of the all the sides

Perimeter =  (9x - 4) + (5x+2) + (5x+2) + (9x - 4)  

Perimeter =  28x-4

Hence, The perimeter is  28x-4

To know more about Perimeter check:

https://brainly.com/question/6465134

#SPJ2

through: (3,-2) and (0, -2)

Answers

Answer: IF FINDING THE EQUATION,
y= -2


Explained : m came out to be zero, so there is no mx term.

HELP PLS
Raise 5 to the 9th power, then subtract j from the result

Answers

Answer:

expression is ([tex]5^{9}[/tex]) - j

Step-by-step explanation:

^^

5 is raised to the 9th power and then subtraced by j

you dont *really* need the () bc of pemdas but whatever

5^9=1953125
1,953,125-j

1+1??????????????????????????????????????????

Answers

Answer: 2

Step-by-step explanation: 1+1=2

Answer:

1+1=2 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

I just need to know what elevation did Winston reach during his deepest dive?

Answers

Answer: 20.2 * -2.5ft = -50.5ft

Hence, Winston reach -50.5 feet during his deepest dive.

If your question was this: On Wednesday at 9 a.m., Winston went diving. Near the beach, the ocean’s surface was at an elevation of -2.5 feet. During his deepest dive, Winston reached an elevation that was 20 1/5 times the elevation of the ocean’s surface. What elevation did Winston reach during his deepest dive? Then that should be your answer....                                         I had this question too, and this is what i got....

Hope this helps.... Stay safe and have a Merry Christmas!!!!!! :D

Need help this is for MATH

Answers

Answer:

It is D or B. If i am not mistaken

What is the y-intercept of the function?

Answers

Answer:

-5

Step-by-step explanation:

Two gallons of paint covers about 900 square feet. How many square feet will 5
gallons of paint cover?
will give brainleist is correct

Answers

Answer:

2250

Step-by-step explanation:

2250 square feet. Divide 900 by two=(450 square feet per paint can) then multiply that by 5 to get the total sqfeet. :)

in order for students to have a club at school they need a minimum of 22 students. If there are 17 students signed up for the club, how many more students does the club need

Answers

Answer: 5 more students need to sign up.

How many solutions does this equation have
6x + 2x - 4= 4(2x - 1)

Answers

Answer:

All Real Numbers

Step-by-step explanation:

Step 1:

6x + 2x - 4 = 4 ( 2x - 1 )         Equation

Step 2:

8x - 4 = 8x - 4          Combine Like Terms

Step 3:

8x = 8x         Add 4 on both sides

Answer:

All Real Numbers

Hope This Helps :)

A ball is thrown from the top row of seats in a stadium. The function h(t)=-16t2+48t+160 gives the height, t, in feet, of the ball t seconds after it is thrown. How long will it be before the ball hits the ground?

Answers

Answer:

t = 5 s

Step-by-step explanation:

The function that gives the height in feet of the ball t seconds after it is thrown is :

[tex]h(t)=-16t^2+48t+160[/tex]

We need to find how long will it be before the ball hits the ground. When it hits the ground, its height will be equal to 0.

So,

[tex]-16t^2+48t+160=0[/tex]

We need to solve this equation. When we solve, we get its solution as shown in the figure. We can see that t = -2 s and t = 5 s.

t = -2 s is not possible.

Hence, the ball will hit the ground before 5 seconds.

I'm taking my final please answer this and wish me luck

Answers

Answer:

B 7feet

Step-by-step explanation:

Side a = 24

Side b = 25

Side c = 7

Angle ∠A = 73.74° = 73°44'23" = 1.287 rad

Angle ∠B = 90° = 1.5708 rad = π/2

Angle ∠C = 16.26° = 16°15'37" = 0.28379 rad

C=16.26°B=90°A=73.74°b=25a=24c=7

Area = 84

Perimeter p = 56

Semiperimeter s = 28

Height ha = 7

Height hb = 6.72

Height hc = 24

1. which of these is the correct order of the rational numbers from greatest to least ?

A: 5/2, 1, 3/4, 1/2
B: 3/4, 1/2, 5/2, 1
C: 5/2. 1, 1/2, 3/4
D: 1/2, 5/2, 3/4, 1

2. which of these is the correct order of the rational numbers from greatest to least ?

A: 0.34, 3.5, 0.82, 0.57
B: 3.5, 0.82, 0.57, 0.34
C: 0.82, 0.57, 3.5, 0.34
D : 0.57, 3.5, 0.82, 0.34

PLS HELP !

Answers

Step-by-step explanation:

AB

...................

PLEASE HELP ASAP!?!?!?

Answers

Answer:

i only did the second one!

but i am still trying to solve the first.

Hope I am correct! please forgive me if this is wrong!

I did also the first one!

Jody has 4 red marbles, 6 blue marbles, and 9 yellow marbles. What is the ratio of red marbles to blue marbles?

Answers

Answer:

2:3

Step-by-step explanation:

First, create the ratio by putting the numbers together:

There are 4 red and 6 blue marbles:

4:6

Since both of these are divisible by 2, it can be simplified:

4:6

2:3

So, the ratio of red marbles to blue marbles is 2:3

Answer: 4 to 6 marbles

Step-by-step explanation:

Hitomi has a total of 30 red and blue bowling balls at her bowling alley. Each red ball weighs 8 lbs. Each blue ball weighs 9 lb. If the total mass of the blue balls is 49 lb. heavier than the total mass of the red balls, how many red balls does she have?

Answers

Answer:

5 balls

Step-by-step explanation:

Answer:

It is 13 balls.

Step-by-step explanation:

9(30-x) = 8x + 49 is the equation.

Hunter took out a $3500 loan with interest to pay for some business supplies. He will repay The loan and three years with monthly payments of $109.68. What is the total amount of interest hundred will pay? ( there's no answer choices)

Answers

Answer: $448.48

Step-by-step explanation:

The amount Hunter will pay in total is;

= 109.68 * 12 months * 3 years

= $‭3,948.48‬

Interest he will pay = Amount paid - Loan amount

= ‭3,948.48‬ - 3,500

= $448.48

Help ASAP please! Thanks.

Answers

Answer:

im pretty sure the last one

Step-by-step explanation:

What is a sales tax?

Answers

Sales tax is an additional amount of money you pay based on a percentage of the selling price of goods and services that are purchased. For example, if you purchase a new television for $400 and live in an area where the sales tax is 7%, you would pay $28 in sales tax. Your total bill would be $428.88

Circle K has a diameter of 10 centimeters and a major arc RS is intercepted by a central angle of 190°. Find the length of major arc RS . Round to the nearest tenth.

Answers

Answer:

16.6

Step-by-step explanation:

The square root of the quotient of a number n and 3 is equal to the square root of 4 less than the number. Which of the following is the value of n?

Answers

Answer:

6

Step-by-step explanation: You can set up the equation: [tex]\sqrt{\frac{n}{3} }[/tex] = [tex]\sqrt{n-4}[/tex] You square both sides to cancel out the squares which leaves you with [tex]\frac{n}{3}[/tex] = n - 4. Then you just solve as normal which ends you up with an answer of 6. You can check this by plugging 6 back into the equation and see that you end up with [tex]\sqrt{2}[/tex] on both sides.

the opposite of 5x and 5x+8?

Answers

the opposite or addictive increase of 5x is -5x.

the opposite or addictive increase of 5x + 8 is -5x -8.

Answer:

Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=x5+85 f - 1 ( x ) = x 5 + 8 5 is the inverse of f(x)=5x−8 f ( x ) = 5 x - 8 .

............Find .....X......

Answers

Answer:

x=50

Step-by-step explanation:

(x-10)+x+90=180

2x-10+90=180

2x+80=180

2x=100

x=50

looking from the picture it would be 50

Anna made and sold x ceramic vases one week. Her profit, P, in dollars is calculated using the formula P = R - C . Where R represents her revenue and C represents her costs. If R = 25x - 0.5x ^ 2 C = 100 + 5x which expression represents her profit in dollars?

Answers

Answer:

-0.5x² + 20x + 100

Step-by-step explanation:

Given:

R = 25x - 0.5x²

C = 100 + 5x

P = R - C

Where,

P = profits

R = Revenue

C = Cost

which expression represents her profit in dollars?

P = R - C

R = 25x - 0.5x²

C = 100 + 5x

= 25x - 0.5x² -(-100 + 5x )

= 25x - 0.5x² + 100 - 5x

= -0.5x² + 20x + 100

The expression which represents her profit in dollars is -0.5x² + 20x + 100

Please help me answer this

Answers

Hello!

Answer:

[tex]\boxed{ \bf x=6}[/tex]

Explanation:

3(x + 3) = 18

⇒ Step 1 - Multiply everything in the brackets by 3:

3x + 9 = 18

Step 2 - Subtract 9 from both sides of the equation:

3x + 9 = 18

     - 9    - 9

3x = 18

Step 3 - Divide both sides of the equation by 3.

[tex]\frac{3x}{3} = \frac{18}{3}[/tex]

x = 6

Answer: x = 3

Step-by-step explanation:

1. Distribute.

3(x+3)=183x+9=18

2. Subtract 9 from BOTH sides.

3x+9-9=18-9

3. Simplify.

Subtract 9 from BOTH sides.3x=9 is the answer.

4. Divide BOTH sides of the equation by the same term.

[tex]\frac{3x}{3} =\frac{9}{3}[/tex]

5. Simplify.

Cancel out the terms that are both in the numerator and the denominator.Divide the numbers.

Therefore, your answer is X = 3

Find the value of X

Answers

Answer:

should be 80, angle 50 is congruent on both sides to 50+50 equals 100. The triangle sum theorem says a triangle adds up to 180 degrees so we are left with 80, X=80 degrees

the total angle is 180.

50 + 50 + x = 180

thus , x = 80

What is the circumference of the circle
A. 18.84
B. 17.6
C. 21.79
D. 15.65

Answers

Answer:

18.84

Step-by-step explanation:

The formula for circumference is 2(pi)r, I think. The radius is 3. 3 times 2 is 6. 6 times 3.14 is around 18, I think.

hope this helps

Answer:

A

Step-by-step explanation:

Other Questions
According to Robert Sternberg, refers to the ability to break problems down into component parts, or analysis, for problem solving. This is the type of intelligence that is measured by intelligence tests and academic achievement tests. O analytical intelligence creative intelligence O practical intelligence general intelligence O cultural intelligence Which phrase best completes the diagram?A. Ended slavery in EgyptB. Ruled Egypt during its weakest periodC. Destroyed the Nubian civilization D. Signed the first known peace treaty Replace underlined words with indirect objects (me, te, lui, nous, vous,leur) Remember that pronouns like me and te change tom' > and < t' in front of vowels. A set of average city temperatures in December are normally distributed with a mean of 16.3 degrees C and a standard deviation of 2 degrees C. What proportion of temperatures are between 12.9 degrees C and 14.9 degrees C?you may round your answer four decimal places. This diet is characterized by eating only real foods and avoiding all processed foods including sugar, grains, legumes, vegetable oils, and artificialsweeteners. This is a diet meant to follow for a lifetimePaleoKetoCarnivoreDASH What Phase is water at 120 degrees Celsius? what inspired Revolutions in hatit and Latin America convert the expression [tex]\sort[4]{3}[/tex] into exponential form Which input value produces the same output value forthe two functions?O x= -12O x= -9O x= -6O X=-3HELP PLEASE An increase in which of the following does not increase the rate of a chemical reaction?A. product B. pressure C. reactants D. temperature How is the Supreme Court equal to the other branches of government? (1 point)It has the same powers as the legislative branch and executive branch.Olt enforces the laws along with the president.It creates laws like the legislative branch.It interprets the laws and has the final say in federal law. What contribution of the Texas Revolution did George Childress make?A.Creator of the first oil rigB.Fired the cannon at the Battle of GonzalezC.Author of the Texas Declaration of IndependenceD. Established the Texas Railroad Commission Select the correct answer. If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? OA The lines in a system cannot be parallel.OB There is no solution. OC There is exactly one solution. OD There are infinitely many solutions. What were 3 reforms that came from the Chicago race riots What is $2.75 in cents What gave the Patriots a military advantage over the British during the Revolutionary War? A. The Continental Congress raised more money than the British did. B. Patriot militias were skilled at launching surprise attacks. C. Nearly all African slaves enlisted in the Continental Army. D. The British soldiers were mostly untrained volunteers. The boy said he hadnt stolen the car. He just wanted to go j_ _ _ _d_ _ _. I need help with this question! Heather purchased a prepaid phone card for $30 . Long distance calls cost 14 cents a minute using this card. Heather used her card only once to make a long distance call. If the remaining credit on her card is $28.18 , how many minutes did her call last? What's is a prepared piano?Please hurryyyy