A rock falls from a tower that is 416 ft high. As it is falling, its height is given by the formula h=416-16t^2. How many seconds will it take for the rock to hit the ground (h=0)?

Answers

Answer 1
5.1 Seconds. t = 5.1

5.1^2 = 26.01

416/16 = 26

26*16 = 416

Related Questions

Amazon is sold at rupees 99000 after 10% discount and 10% bat on the Marked price find the discount amount and vat amount​

Answers

Answer:

Here,

SP with VAT = Rs. 99000

Discount = 10%

VAT = 10%

Discount Amount =?

VAT Amount = ?

We know,

SP = "100" /"100 + v% "  × SP with VAT    

 = "100" /"100 + 10 "  × 99000    

= "100" /"110 "  × 99000      

= Rs. 90000 ∴   VAT Amount = SP with VAT – SP    

= Rs. 99000 – 90000    

= Rs. 9000 Again,  MP = "100" /"100 – d% "  × SP      

=  "100" /"100 – 10 "  × 90000      

=  "100" /"90"  × 90000      

= Rs. 100000

∴   Discount Amount = MP – SP          

= Rs. 100000 – 90000          

= Rs. 10000

Step-by-step explanation:

Here is the list of all formulas on MP, Discount, SP, and VAT.

1. Discount Amount = Discount % of MP    

2. Discount % = (Discount Amount)/MP  ×100%      

3. SP = MP – Discount Amount    

4. SP = (100 - d%)/(100 )  × MP    

5. MP = 100/(100 - d% )  × SP  

 6. VAT amount = VAT percent of SP    

7. VAT percent = (VAT Amount)/SP  ×100%  

 8. SP with VAT = SP + VAT amount    

9. SP with VAT = (100 + v%)/(100 )  × SP    

10. SP = 100/(100 + v% )  × SP with VAT  

 11. MP = (100 × 100)/((100 - d%)(100 + v%))  × SP with VAT    

12. SP with VAT = ((100 - d%)(100 + v%))/(100 × 100)  × MP

If m∠A = m∠B and m∠A + m∠C = m∠D, then
m∠B + m∠C = m∠D.

Answers

Answer:

True. The statement is also equivalent to: If m<B + m<C does not equal m<D, then m<A does not equal m<B and m<A + m<C is not equal to m<D.

חן
d
60°
30°
e
The product of sin 30° and sin 60° is same as the product of
and

Answers

Answer:

Step-by-step explanation:

This is a fascinating question. It turns out to be true because of the relationship between a 30 degree angle and a 60 degree angle

The answer is that the product of sin30*sin60 = cos(30)*cos(60). This happens because sin(60) = cos(90-60) = cos(30)

Other angles will do the same thing sin36 * sin54 = cos(54)*cos(36)

31. Which choice describes the value of m when -5(m + 1) = 23?
А
B.
m 2-3
ms-
6 m2
D.ms-

Answers

Answer:

The correct choice is Option A. m ≥ -28/5

Step-by-step explanation:

PLZ ANSWER QUICK

Forest has a box of 12 candies. The Venn diagram below shows how many candies contain chocolate, coconut, both, or neither. Complete the following two-way frequency table.

Answers

Answer: Answer is in the image below.

Step-by-step explanation:

help me pleaseeeeeeeee​

Answers

5^2x common
5^2x(5+1)=150
5^2x=25
5^2x=5^2
2x=2
x=1

A.0.16, 0.10, 0.07, -2.65, -1.43

B. -2.65, -1.3, 0.16, 0.10, 0.07

C.0.16, 0.10, 0.07, -1.43, -2.65

D.-2.65, -1.43, 0.07, 0.10, 0.16

Answers

Answer:

Step-by-step explanation:

The greatest value is 0.16. The least value is - 2.65

The least value (mathematically) is - 2.65

So C is the right answer.

i will mark brainliest!!!
Other answers: C. y=25x
D. y=25x+8.34

Answers

Answer:

Omg why are you soo beautiful? I love it

Answer:

y = 8.34x + 25

Step-by-step explanation:

(10, 108.4) (20, 191.8)

m = slope

m = (y2 - y1)/(x2 - x1)

m = 191.8 - 108.4/20 - 10

m = 83.4/10

m = 8.34

She collects rainwater in a large barrel that weighs 25 pounds (y-intercept) so therefore, our answer should be y = 8.34x + 25

For the Parabola y = (x - 7)^2 – 3. the equation for the Line Of Symmetry is

Answers

Answer:

x+=(y)=x

Step-by-step explanation:

Answer:

x = 7

Step-by-step explanation:

y = (x - 7)^2 – 3

This equation is in vertex form

y = a(x-h)^2 +k  where (h,k) is the vertex.  For a vertical parabola, the axis of symmetry is x=h

x = 7

Prove that:
Sin^2A+Sin^2B.Cos2A=Sin^2B+Sin^2A.Cos2B​

Answers

Answer:

See Below.

Step-by-step explanation:

We want to prove that:

[tex]\displaystyle \sin^2 A + \sin^2 B \cdot \cos 2A = \sin^2 B + \sin^2 A \cdot \cos 2B[/tex]

Recall that double-angle identity for cosine:

[tex]\displaystyle \begin{aligned} \cos 2x &= \cos^2x - \sin^2 x \\ &= 2\cos^2x -1 \\ &= 1 - 2\sin^2 x\end{aligned}[/tex]

Substitute cos(2A) for its third form:

[tex]\displaystyle \sin^2 A + \sin^2 B \cdot \left(1 - 2\sin^2 A\right) = \sin^2 B + \sin^2 A \cdot \cos 2B[/tex]

Distribute:

[tex]\displaystyle \sin^2 A + \sin^2 B - 2\sin^2B \sin^2A = \sin^2 B + \sin^2 A \cdot \cos 2B[/tex]

Rewrite:

[tex]\displaystyle \sin^2 B + \left(\sin^2 A - 2\sin^2 B\sin^2 A\right)[/tex]

Factor:

[tex]\displaystyle \sin^2 B + \sin^2A\left(1 - 2\sin^2 B\right) = \sin^2 B + \sin^2A\cdot \cos 2B[/tex]

Double-Angle Identity for cosine:

[tex]\displaystyle \sin^2 B + \sin^2 A \cdot \cos 2B \stackrel{\checkmark}{=} \sin ^2 B + \sin^2 A\cdot \cos 2B[/tex]

Hence proven.

Find the value of x.
B
10-X
3
D
х
2.
A
С
x = [?]

Answers

Answer:

3/(10-x) = 5/(10-x+x)

3/(10-x) = 1/2

6 = 10-x

x = 4

Hope this helps!

Hey guys ♡
hw r u all doin
pls solve this question for me ⤵️

(m-1)/2 - (m-2)/3 = ( m - 4 )/7 ​

Answers

Answer:

m = - 31

Step-by-step explanation:

Given

[tex]\frac{m-1}{2}[/tex] - [tex]\frac{m-2}{3}[/tex] = [tex]\frac{m-4}{7}[/tex]

Multiply through by 42 , the LCM of 2, 3 and 7 , to clear the fractions

21(m - 1) - 14(m - 2) = 6(m - 4) ← distribute parenthesis

21m - 21 - 14m + 28 = 6m - 24

7m + 7 = 6m - 24 ( subtract 6m from both sides )

m + 7 = - 24 ( subtract 7 from both sides )

m = - 31

The graph showing here is the graph of which of the following rational functions?

Answers

Answer: A

Step-by-step explanation:

The graph has a vertical asymptote at x = -2. In this situation, vertical asymptotes happen when the denominator equals zero, which leaves the function undefined. Therefore, find the answer choice whose denominator equals zero when x = -2.

A would be correct because when x = -2,

[tex]F(-2)=\frac{1}{-2+2}=\frac{1}{0}[/tex], which is undefined.

(2 x 100) + (7 x 1) + (2 x 1/10) + (9 x 1/100) + (4 x 1/1000) as a decimal number

Answers

Answer:

207.294

Step-by-step explanation:

(2 x 100) + (7 x 1) + (2 x 1/10) + (9 x 1/100) + (4 x 1/1000)

(200) + (7) + (1/5) + (9/100) + (1/250)

= 207.294

The decimal number for the given expression is 207.294.

The given expression is (2 x 100) + (7 x 1) + (2 x 1/10) + (9 x 1/100) + (4 x 1/1000).

We need to write the decimal number for the given expression.

How to convert expanded form to standard form?

To convert the expanded form of a number to the standard form, simply add the values in the expanded form together.

Now, 200+7+0.2+0.09+0.004=207.294

Therefore, the decimal number for the given expression is 207.294.

To learn more about decimal numbers visit:

https://brainly.com/question/4708407.

#SPJ2

Solve for v: w = v/r

Answers

Answer:

v = wr

Step-by-step explanation:

[tex](r)w=\frac{v}{r}(r)\\wr=v[/tex]

Answer:

v = w/r

Step-by-step explanation:

w = v/r

v = w/r

Ms. Davis writes an equation on the board.
(-6) + 6 = 0
Which scenario could represent this equation?

Answers

There are many answers we could go with here. One such answer could be the following:

You are 6 meters below the ocean surface doing a deep sea dive. This is represented by -6. Then going up 6 meters means you'll add on 6 to say (-6)+6 = 0, showing that you are at the 0 meter height, aka sea level.

---------------------------------

Another possible answer could be this:

You are 6 dollars in debt. Debt is represented with negative numbers. You then somehow get 6 dollars in which you use to pay off that debt. Your balance is now (-6) + 6 = 0 dollars.

---------------------------------

Another possible answer could be this:

Walking to the left is defined as moving in a negative direction. So -6 could mean we've moved 6 feet to the left. On the flip side, +6 means we move 6 feet to the right. The two cancel each other out (-6)+6 = 0 which says at the end of the day, we haven't moved anywhere. In other words, our displacement is 0 feet.

-----------------------------------

I'm sure there are other more creative ways to answer this question, but those three ideas above are good possible starting points.

Find the area and perimeter of the given plain figure​

Answers

This shape is the rhombus, then ;

Rhombus area = side length × height

A= b × h

A= Rhombus area

h = height ; b = side length ( length of any side)

h= 3 inch ; b= 4.5 inch ; A=?

A= b × h

A= 4.5 × 3 = 13.5 inch²

____o__o_____

The perimeter of a rhombus = 4 × side of length

P = 4× a

P = The perimeter of a rhombus ; a = side of length

p= ? ; a = 4.5 inch

P = 4× a

P = 4× 4.5 = 18 inch

I hope I helped you^_^

CHO A (0,2) B(-2,0) C(2,-1) chứng minh A B C thẳng hàng

Answers

Step-by-step explanation:

language mujhe samajh mein nahin a rahi hai

Match all the part of the circle to their correct name.

1. YW
2. Q
3. WX
4. W
5. ST
6. VQ
7. TW

a. Center
b. Secant Line
c. Chord
d. Radius
e. Point of Tangency
f. Diameter
g. Tangent Line

Answers

Answer:

halo

1. YW - chord

2. Q - center

3. WX - tangent line

4. W - point of tangency

5. ST - secant line

6. VQ - radius

7. TW - diameter

please mark brainliest???

The correct matches are,

1. YW - chord

2. Q - center

3. WX - tangent line

4. W - point of tangency

5. ST - secant line

6. VQ - radius

7. TW - diameter

What is diameter?

In geometry, a diameter of a circle exists as any straight line segment that passes via the center of the circle and whose endpoints lie on the circle. It can also be described as the longest chord of the circle. Both descriptions exist also valid for the diameter of a sphere.

The correct matches are,

1. YW - chord

2. Q - center

3. WX - tangent line

4. W - point of tangency

5. ST - secant line

6. VQ - radius

7. TW - diameter

To learn more about diameter refer to:

https://brainly.com/question/23220731

#SPJ2

Find the measure of the third angle of a triangle if the measures of the other two angles are given.
35.5 and 82.6
A. 66.8
B. 58.4
C. 61.9
D. 31.9

Answers

9514 1404 393

Answer:

  C.  61.9°

Step-by-step explanation:

The sum of angles in a triangle is 180°, so the third angle is ...

  180° -35.5° -82.6° = 61.9°

Tommy types 54 words per minute, with an average of 3 mistakes. How many mistakes would you expect Tommy to make if he typed 300 words?

Answers

Answer:

around 17 mistakes

Step-by-step explanation:

We can write a ratio to solve

54 words             300 words

------------------ = -------------------

3 mistakes             x mistakes

Using cross products

54x = 3*300

54x = 900

Divide by 54

54x/54 = 900/54

x =50/3

x = 16.66666666(repeating)

around 17 mistakes

X = mistakes in 300 words

54/3 = 300/X

54X = 3 x 300

X = 900/ 54

X = about 17 words, since 16 and 2/3 rounded to the nearest tenth is 17

Find the sentence distance between the points (-2,2) and (-1,1). Round to two decimal places if necessary.

Someone help me

Answers

Answer:

1.41

Step-by-step explanation:

Coordinates of point 1 are:

(-2,2)

Coordinates of point 2 are:

(-1,1)

[tex]Distance \: between \: two \: points \\ = \sqrt{ {(x_{2} - x_{1})}^{2} + {(y_{2} - y_{1})}^{2} } \\ = \sqrt{ { (- 1 - - 2)}^{2} + {(1 - 2)}^{2} } \\ = \sqrt{ { (1)}^{2} + {( - 1)}^{2} } \\ = \sqrt{ 1 + 1 } \\ = \sqrt{2} \\ = 1.41 [/tex]

1 - 3/10 Write the answer as a fraction​

Answers

Answer:

7/10

Step-by-step explanation:

Get a common denominator

1 - 3/10

10/10 - 3/10

7/10

Please help me answer this

Answers

Answer:

77

Step-by-step explanation:

Use Pythagorean to solve this:

FH² = FG² - GH²GH² = EG² - EH²

Substitute values:

FH² = 85² - (45² - 27²)FH² = 5929FH = √5929FH = 77

Answer:

FH = 77

Step-by-step explanation:

Using all the side lengths given, we can create a pythagorean like equation with all three values:

= -45² + 27² + 85²

= -2,025 + 729 + 7,225

= 5929

= √5929

= 77

Best of Luck!

Analyze the diagram below and complete the instructions that follow.
10
6
B.
'C С
8
Find sin ZA
A 3
5
B. 4
C 1

Answers

Answer:4

Step-by-step explanation:just had this

Check all that apply

Answers

Answer:

all of them are REAL numbers

1. is also RATIONAL

2. is also IRRATIONAL

3. is also IRRATIONAL

4. is also NATURAL, WHOLE, INTEGER and RATIONAL

5. is also INTEGER and RATIONAL

6. incorrect, because integer is just the whole numbers extended by their additive counterparts (the negative natural numbers). in other words, their absolute values are whole numbers. 5.5 as well as -5.5 are not fitting that criteria.

7. incorrect, because this pattern does not fit the definition of a radical number, where the number eventually begins to repeat the same finite sequence of digits over and over. in this example the pattern is not based on a finite sequence of digits.

Write the equation of the circle in standard form with the center located at
(-2, 5) and radius of 3.

Answers

Answer:

(x+2)^2 + (y-5)^2 = 9

Step-by-step explanation:

The equation of a circle is given by

(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius

(x- -2)^2 + (y-5)^2 = 3^2

(x+2)^2 + (y-5)^2 = 9

Plzzz help 10 points and will mark brainiest
hint: answer is a fraction

Answers

Answer:

1/3

Step-by-step explanation:

The left side of FA is 6 units.

The left side of FB is 2 units.

From 6 to 2, you divide by 3.

Same for the top,

FA is 9 units, while FB is 3 units.

I hope this helps!

pls ❤ and mark brainliest pls!

I need help on my math.

Answers

What’s the question ?????

Given that line a is parallel to line b and that line c isparallel to line d, if m<13 = (12x – 22)° and m<14 = (9x – 29)°, find m<2

Answers

Answer:

∠ 2 = 70°

Step-by-step explanation:

∠ 13 and ∠ 14 are adjacent angles and sum to 180° , then

12x - 22 + 9x - 29 = 180

21x - 51 = 180 ( add 51 to both sides )

21x = 231 ( divide both sides by 21 )

x = 11

Then

∠ 14 = 9x - 29 = 9(11) - 29 = 99 - 29 = 70°

∠ 7 = ∠ 14 = 70° ( Alternate angles )

∠ 2 = ∠ 7 = 70° ( Alternate angles )

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Line A has the equation: y = 2x + 5. Determine the equation of line B when it is parallel to line A and passes through (0 , -4). In Japan, there is something called Anime, It's a form of animation in Japan and is one of the most popular types of tv since what year? Fort Detrick was built during World War II as a biological research base to secretly study germ warfare. Fort Detrick now houses a number of high-end LABS, including the U.S. Army Medical Research Institute of Infectious Diseases, which stores deadly "specific biological agents and toxins" such as Ebola, anthrax and Brucella.In July 2019, the CDC suddenly ordered the temporary closure of the U.S. Army Institute of Infectious Disease Medicine at Fort Detrick. The suspended laboratory studies involved certain toxins that the government has determined "pose a serious threat to the public, animal or plant health, or animal or plant products." CDC spokeswoman Mary Linton later confirmed that six noncompliance with federal rules, including important biosafety procedures, had been found at the LABS. Around the same time, there was an outbreak of respiratory illness in a retiree community in Virginia. Fifty-four people developed fever, cough and general weakness, and two people died. Because the community is only about an hour's drive from the Fort Detrick Biological Research base, there were suspicions of a virus leak. The US owes the world an answer for repeatedly leaking the virus. In Mesopotamia, writers communicated using:hand signals.mnemonics. cuneiform.None of the choices are correct. I need help plz!!8.57396817...5/8 is rational or irrational? How can I solve this?I managed to find Part A, but I got stuck trying to find Part B and C Passive form of "How does the girl help the the boy?" graph the line that passes through the points (-3,-7) and (-2,-7) and determine the equation of the line 2. Mr. McGrath is ordering pizza for the girls soccer team. A large cheese pizza costs $10, plus 80 for eachadditional topping (including extra cheese!).Complete the table below. what is the units of the partial circle Select the example that describes an environmental cause of famine. a. A country's population continues to increase but incomes decrease steadily. b. Local farmers lack the technical expertise to develop new cultivation strategies. c. An area is flooded after heavy rains and all the crops are lost. d. A corrupt government is overthrown and the country descends into violence. Why do animal cells not need central vacuoles?A: Animal cells are round.B:Animal cells have cell walls.C:Animals do not produce their own foodD:bodies have skeletons. what is the use and harm of acid write 3 points of each What is the area of the obtuse triangle below?9.11O A. 49.5 sq. unitsOB. 99 sq. unitsC. 10 sq. unitsD. 20.5 sq. units Which idea would William M."Boss" Tweed of Tammany Hall most support?O Patronage systemO Immigration quotasFreedom of the pressO Term limits for politicians help please!!!!!!!!!!!!!!!!!!!!!!! Jot down some points how you inspire a bad friend to be a good friend 1. Find the measure of angle R. What is the biggest man made lake in the world A city bus travels along its route from Jackson Street 8 km to Aurora Avenue, where it turns and continues 13 km.What is the total distance that the bus has traveled? kmThe total displacement of the bus is approximately 15 kmnortheastnorthwestsoutheastsouthwest.