Find the time it takes for a rocket following the path, h(x) = -2x2 + 18, to hit the ground. 2 sec 3 sec 8 sec 9 sec

Answers

Answer 1

The time it takes for a rocket  to hit the ground is 3 seconds

Step-by-step explanation:

We are given equation for height as

where

x is the time in seconds

When object hits the ground

then height becomes 0

so, we can set h(x)=0

and then we can solve for x

Subtract both sides by 18

So,

the time it takes for a rocket  to hit the ground is 3 seconds


Related Questions

Select all of the equations below that are equivalent to:

m + 17 = 18

Use properties of equality.

m + 7 = 18 - 12

m + 6 = 18 - 10

m + 17 - 2 = 17

m + 13 = 18 - 4

Submit

Work it out

Answers

The equivalent expression will be;

⇒ m + 13 = 18 - 4

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ m + 17 = 18

Now,

Since, The expression is,

⇒ m + 17 = 18

Solve for m as;

⇒ m + 17 - 17 = 18 - 17

⇒ m = 1

For option (i);

The expression is,

⇒ m + 7 = 18 - 12

⇒ m + 7 = 6

⇒ m = - 1

For option (ii);

The expression is,

⇒ m + 6 = 18 - 10

⇒ m + 6 = 8

⇒ m = 2

For option (iii);

The expression is,

⇒ m + 17 - 2 = 17

⇒ m + 15 = 17

⇒ m = 2

For option (iv);

The expression is,

⇒ m + 13 = 18 - 4

⇒ m + 13 = 14

⇒ m = 1

Thus, The equivalent expression is,

⇒ m + 13 = 18 - 4

Learn more about the mathematical expression visit:

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The equivalent expression of m + 17 = 18 is determined as m + 13 = 18 - 4 (Option D).

What is equivalent expression?

An equivalent expression refers to a mathematical or algebraic expression that has the same value or meaning as another expression, despite potentially having a different appearance or form.

The equivalent expression is calculated as

m + 17 = 18

Solve for m as;

m + 17 - 17 = 18 - 17

m = 1

So we are going to solve all the equations and the one that has the value of m equal to 1 is the equivalent expression.

Solving for option (1)

m + 7 = 18 - 12

m = -1

Solving for option (4)

m + 13 = 18 - 4

m + 13 = 14

m = 1

Thus, the equivalent expression is m + 13 = 18 - 4

Learn more about equivalent expression here:

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Analyze the diagram below and complete the instructions that follow.

Answers

so we know m<3=70

m<2=90

m<2+m<1=m<4

try 50?

let me know if it is wrong

2/3 of 40
3/5 of 45

Yeah so answer that

Answers

Hi,

[tex] \frac{a}{b} \times \frac{c}{d} = \frac{a \times c}{b \times d} [/tex]

[tex] \frac{2}{3} \times \frac{40}{1} = \frac{80}{3} [/tex]

2/3 of 40:

80/3

[tex] \frac{3}{5} \times \frac{45}{1} = \frac{135}{5} = 27[/tex]

3/5 of 45:

27

✅(. ❛ ᴗ ❛.)

Answer:

A= 26.67

B= 27

Step-by-step explanation:

2/3 x 40 = 26.67

(2×40= 80÷3 = 26.67)

and...

3/5 x 45 = 27

(3×45= 135÷5=27)

Hope this helped you- have a good day bro cya)

Rico wants to buy the new Madden NFL game. It costs $60.00. He has $24.78 in

his bank account. He will also get $20 for mowing his neighbors lawns. ACreate a

number line to represent the situation. ALSO how much more does he need in

order to buy the game? *

A. Create a number line to represent the situation.


B. How much more does he need in order to buy the game?

Your answer

.

Answers

Answer:

a.

Step-by-step explanation:

its the right way

Find x and y. Give reasons to justify your solution. Pleaseee help

Answers

Answers:

x = 40 and y = 40

========================================================

Explanation:

The three angles involving x add up to 180 since they form a straight line or straight angle.

3x+0.5x+x = 180

4.5x = 180

x = 180/(4.5)

x = 40

Then note how the 0.5x and 0.5y angles are vertical angle pairs. Vertical angles form when we have two lines cross to form an X shape, and vertical angles are always opposite one another. Also, vertical angles are always the same measure.

0.5x = 0.5y

x = y

40 = y

y = 40

In the second step, I multiplied both sides by 2. Then I plugged in x = 40 we found earlier.

4.
A recipe for 12 cookies calls for 15 cups of milk, 2 cups of flour, and 1 cups of other
ingredients. How many total cups of milk, flour, and other ingredients are needed to make
24 cookies?
a) 103 cups
b) 116 cups
C) 11 cups
d) 103 cups

Answers

Answer:

2 cups of milk, 4 cups of flour, and 2 cups of other ingredients

Step-by-step explanation:

multiply them by 2

how to simplify 3x - 20

Answers

Answer:

thats as simple as it gets unless you meant to write 3x=-20, then it would be x = 20/3

Answer:

This cannot be simplified

Step-by-step explanation:

3x-20 is the answer

help please how u do dis​

Answers

Answer:

WR = 16

Step-by-step explanation:

The centroid M is the point where the 3 medians intersect

The median is a segment that goes from one of the triangle's vertices to the midpoint of the opposite side.

WY is a median of the triangle , then

WY = YR = 8

WR = wy + yr = 8 + 8 = 16

Check the given measurements whether it could make a triangle

(a) 7 cm, 2 cm and 5 cm


(b) 10 cm, 12 cm and 14 cm.​

Answers

I don't know sorry.

Sorry!

how do I become good at fortine ​

Answers

Answer:

practice.

Step-by-step explanation:

hope this helps. . . <3

good luck!     uωu

Answer:

umm work harder I guess -,-

Step-by-step explanation:

which of the following is the slope of a line perpendicular to the line defined by y-2=3x

Answers

Step-by-step explanation:

The equation in the problem is in slope-intercept form. The slope-intercept form of a linear equation is:

y=mx+

lb

Where

m

is the slope and

b

is the y-intercept value.

y

=

4

x

+

1

Therefore, the slope of the line represented by the equation in the problem is:

m

=

4

Let's call the slope of a perpendicular line:

m

p

The slope of a perpendicular line is:

m

p

=

1

m

Substituting gives:

mp=

[tex] \dfrac{−1}{−4} = \dfrac{1}{4} [/tex]

Ryan and his brother Will went to the store to buy a new baseball bat. The baseball bat costs $97.99. Ryan had saved enough money to pay 38% of the cost of the bat. How much money did Ryan have to help pay for the bat?

Answer my question for 10 points

Answers

Answer:

Hello! The answer is $37.24.

Step-by-step explanation:

By simple calculations, 38% of $97.99 equates to $37.2362. However, since this is a money-based question, we have to round the last two numbers up - which basically equals $37.24!

Answer:

Ryan had $37.24

Step-by-step explanation:

can someone help me with this sum please

Answers

Answer:

See below...

Step-by-step explanation:

v * 7x = 7vx

8c * 6e = 48ec

3a * 4a = 12a^2

8xw * 2w = 18xw^2

8mn * 3m^2n = 24m^3n^2

4acx * 5ax^2 * 6c = 120a^2c^2x^3

4m * 4n = 16mn

3x * 4x = 12x^2

5w * 3wx = 15w^2x

6c * 5ac^2 = 30ac^3

9wx^2 * 6w^2x = 54w^3x^3

9a^2c * 4ac^2e^3 = 36a^3c^3e^3

ANSWER FOR BRAINLIEST
Identify the graph for the point C(−2, −1, 2) in three-dimensional space.

Answers

Answer:

the topmost one maybe?

Step-by-step explanation:

I'm guessing since X & Y are negative, (it's written X,Y,Z, right?)

The point would be reducing on the X&Y axes, an since Z is positive, it would increase on the Z axis

The point C( -2,-1, 2) is represented by option 4 in the three dimensional space

What does the coordinates of a point mean in a three dimensional space?

Let (x, y , z) be any point in the three dimension then x represents x-coordinate, y represent y-coordinate and z represent z- coordinate

The point C( -2, -1. 2) represent point with x = -2 , y = -1  and z = 2

(-2,-1) is point with x= -2 and y = -1 represent  is marked in the the x y plane in fourth quadrant and z =2 means that this (-2,-1 ) is taken 2 units up in the perpendicular direction of positive z- axis as shown in the attached figure.

Also learn more about the three dimensional space from the link below:

https://brainly.com/question/16328656

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Can some help me plzzzz

Answers

Answer:

Should be 9 grams

Step-by-step explanation:

240÷40=6 576÷2÷2÷2÷2÷2÷2=9

Three numbers have a ratio of 2: 3: 4. Find the largest number if their sum is 36.

Answers

Answer:

16

Step-by-step explanation:

2 + 3 + 4 = 9

36/9 = 4

2 · 4 = 8

3 · 4 = 12

4 · 4 = 16

hey ty if you can answer ​

Answers

Answer:

c (I think it is c, but I am not a 100% sure)

Step-by-step explanation:

x and y have to be same

Have a nice day! :-)

Answer:

  a.  ∞, -∞

Step-by-step explanation:

The line has negative slope, so the sign of the end value of y will be the opposite of the sign of the end value of x.

  x → -∞,  y → ∞ . . . . . off the top of the graph as x goes to the left

  x → ∞, y → -∞ . . . . . . off the bottom of the graph as x goes to the right

The end behavior is summarized as ...

  ∞, -∞ . . . . . matches choice A

Solve the linear systems using multiplication 6x - 12y = 15;2x - 4y = 6 -​

Answers

Answer:

your answer would be 1

Step-by-step explanation:

The whole equation is divided by 3 to get 2x-4y=5, but since there is a 6 we need to subtract 1 away to get 5.

Math
Convert from fraction to decimal. 5/8

Answers

Answer:

5/8=0.625

Step-by-step explanation:

5/8=decimal

5/8=0.625

Hope this helps :)

Answer:

0.625

Step-by-step explanation:

We know that 1/8= 0.125, so to get 5/8 as a decimal you would do 5 times 0.125.

what is the unknown number to ( 6 x 2) + (6 x 3) = 6 x __

Answers

Answer:

6

Step-by-step explanation:

6

Answer using seconds please!!!

Using my faucet, it takes 6 minutes to fill our water tank.

Using the neighbour’s hose, it takes 9 minutes.

How long would it take if I used both the faucet and the hose?

Answers

Answer:

900 seconds I believe

Step-by-step explanation:

60*6= 360

9*60=540

540+360=900

Russell is eating at a restaurant. His total bill comes to $44.85. If Russell decides to leave a tip that is approximately 20% of the total bill, how much should he leave for the tip?
$9.00
$0.09
$54.00
$8.00

Answers

Answer:

I'm thinking is I'm not sure is is answer 0.9

Step-by-step explanation:

am not sure my answer guys because naka tulong din na man too

Does anybody know the answer or how to do this question bellow|−3+2|

Answers

|-3+2|

-3 + 2 would be -1
The ||’s just turned the 1 to a positive
Would be 1


Look at the set of ordered pairs.
{(-8,3), (-6, 2), (-4,1),(-2, 0)}
Which of the following shows the correct
equation for the function represented by the
ordered pairs?


A: y=-0.5x-1
B: y=-2x-1
C: y=-1/4x+1
D: y=-2x-2

Answers

i put in -8,3 in each one only a and c were true

i put in -6, 2 in a and c and only a was true

answer : A

If my dad drives at a rate of 120 miles every 2 hours, how many miles will he drive in 12 hours? A 720 miles B 320 miles C 120 miles D 600 miles. please help me....

Answers

Answer:

A: 720 miles

Step-by-step explanation:

Since in 2 hours he drives 120 miles we can calculate the rate for 1 hour by diving the miles by 2

1 hour he will have driven 60 miles

Since we are looking for how much would be driven in 12 hours we multiply 60 by 12. Giving us 720 miles in 12 hours

The polynomial x^3 + 8 is equal to?

Answers

Answer:

The polynomial x3 + 8 is equal to (x + 2)(x2 - 2x + 4).

50 points!!! help fast! 50 points!!!

Answers

Answer:

∠PQC = 26.25°

Step-by-step explanation:

∠B and ∠C = 75°∠PCD = 1/2∠C = 37.5°∠DPC = 180 - 90 - 37.5∠DPC = 90 - 37.5∠DPC = 52.5°∠QPC = 180° - 52.5° = 127.5°

Finding ∠PQC

1/2 × (180° - 127.5°)1/2 × 52.5°∠PQC = 26.25°

Answer:

This calculator is helpful for deciding how many tablets/capsules to dispense and/or how many days the dispensed quantity will last. It will calculate quantity of tablets/capsules needed

Step-by-step explanation:

What is the slope of the function, represented by the table of values below?

Answers

Answer:

B

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 2, 10) and (x₂, y₂ ) = (8, - 10) ← 2 ordered pairs from the table

m = [tex]\frac{-10-10}{8-(-2)}[/tex] = [tex]\frac{-20}{8+2}[/tex] = [tex]\frac{-20}{10}[/tex] = - 2 → B

the weight in pounds of a newborn baby t months after birth can be modeled by the equation W=t+7. what is the y-intercept of the equation and what is its interpretation in the context of the problem

Answers

Answer:

y intercept = (0,7) , it is the weight of a newborn at birth/ before any months have passed

Step-by-step explanation:

in this equation:

weight= t(months) + 7

this is an equation written as y=mx +b

in a line equation like this b is the y intercept , or the y value when x=0

in this problem when x=0 it means that 0 months have passed , i.e. the baby is a newborn

The teachers had to transport 165 students by bus on a field trip. Each bus holds 64 students. How many buses do they need to order?

Answers

Answer:

B

Step-by-step explanation:

Divide the number of students by the capacity of each bus

. 165 / 64 = 2 (busses) + 37/64 (remainder)

given:

165 students

each bus= 64 students

to find:

how many buses they need to order in order to take 165 students.

solution:

[tex] \frac{165}{64} [/tex]

[tex] = 2.578125[/tex]

[tex] = 2 \frac{37}{64} [/tex]

hence, the correct answer is option B.

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