An Olympic diver is competing for a metal. His height in meters above the water can be modeled by the function
f (x)= -4.9x^2+9.8x+14.7f(x)=−4.9x +9.8x+14.7
where is is the time in seconds after he begins the dive.

After how many seconds does he reach the water?


What domain makes sense for this scenario?

Answers

Answer 1

Answer:

-4.9x²+75x=-4.9x+50x+38

75x=50x+38

25x=38

x=1.52

1.52 -4.9(1.52)²+75(1.52)=102.67904≈102.7 meters

Double check: -4.9(1.52)²+50(1.52)+38=102.67904≈102.7. Yes.

102.7 meter.

Step-by-step explanation:


Related Questions

need help asap please !!

Answers

Answer:

52

Step-by-step explanation:

2w - 78 = w - 26 ( being opposite sides of parallelogram)

2w - w = 78 - 26

w = 52

Hope it will help :)

What is the value of the expression (2/5+2/5)×3/10?
HELP

Answers

What is the value of the expression (2/5+2/5)×3/10?

ANSWER

[tex] \frac{6}{25} [/tex]

EXPLANATION:

[tex]( \frac{2}{5} + \frac{2}{5} ) \times \frac{3}{10} [/tex]

[tex] \frac{4}{5} \times \frac{3}{10} [/tex]

[tex] \frac{6}{25} [/tex]

Decimal Form:

[tex]0.24[/tex]

HopeItHelps you

#CarryOnLearning

Jason keeps track of the money he earns and spends in the table below. A positive number
means money earned. A negative number means money spent. Which list shows the
amounts in dollars ordered from least to greatest?

Answers

Need more info to solve this

If Log 20 = 1.301 what is the value of Logsub100 20?

I need the step by steps! I can’t find anything videos online to teach this to me

Answers

Answer:

[tex]log_{100}20 = 0.6505[/tex]

Step-by-step explanation:

log20 = 1.301 (when you see only "log" with no base, it is taken as a base 10)

This basically means:

[tex]10^{1.301} = 20[/tex]  (This is the log in exponential form)

Since we don't know what  [tex]log_{100}20[/tex]  is equal to, we will say  [tex]log_{100}20[/tex] = x

So to solve for [tex]log_{100}20[/tex] = x, you do the same thing. (convert to exponential form)

[tex]100^{x} =20[/tex]

Now you will notice that both of these equations are equal to 20.

Since 20 = 20,

we can say [tex]100^{x}[/tex] = [tex]10^{1.301}[/tex]

Another way of saying 100, is [tex]10^{2}[/tex] (make the bases the same)

Now we get [tex]10^{2x} = 10^{1.301}[/tex]      

(we get 2x because an exponent to the power of an exponent ([tex]2^{x}[/tex]) is the same as 2 * x)

Because you have the same base, you can just ignore the 10s and focus on the exponents. So you get:

2x = 1.301

x = 0.6505

need help asap please

Answers

Answer:

[tex]\displaystyle yes[/tex]

Step-by-step explanation:

If the angle of elevation is congruent in both triangles, then both smaller legs are congruent.

I am joyous to assist you at any time.

Which linear function represents the line given by the point-slope equation y + 7 = -2/3 (x+6)?
O f(x) = -x-11
O fx) = x-1
O f(x) = 2x+3
O fx) = 2x + 13

Answers

Answer:

A- f(x) -x-11

Step-by-step explanation:

The top equation y+7= -2/3(x+6) has a

Y-intercept of (0,-11)

Slope=-2/3

Answer A has the the same

y-intercept (0,-11)

Slope of -1

Answer is the only one with the same y-intercept.

what is 14/25 as a decimal and as a percent?

Answers

Answer: 0.56 as a decimal 56% as a percentage

Step-by-step explanation:

14/25 = (14×4)/(25×4) = 56/100 = 0.56
0.56 = 56%

Mylo started making this graph to relate the number of hours he works with the amount of money he is paid. A point representing which information could be added to the graph to show a proportional relationship? A. $16 for working 2 hours B. $36 for working 4 hours C. $40 for working 5 hours D. $58 for working 6 hours\

Answers

Answer:

I can confirm that  the awnser is B

Step-by-step explanation:

I got a 100%

Answer:

B

Step-by-step explanation:

the other person said it was B

y is directly proportional to x
when y = 30 , x =6

a) work out an equation connecting y and x
b) work ou the value of y when x = 12

Answers

Answer:

This is ur ans

Step-by-step explanation:

a.y=5x or x=y/5

b.y=60

y/x=5

y/12=5

y=60

need help asap please

Answers

Step-by-step explanation:

We know that opposite sides of parallelogram are equal so

t + 10 = 3t

3t-t = 10

2t = 10

t = 10/ 2

t = 5

Therefore the value of the should be 5 so that it makes a parallelogram.

Hope it will help :)

SUP= 125 UPE=110 SRE=85 find SUR

Answers

Answer:

m∠SUR = 15°

Step-by-step explanation:

m∠UPE = 110°

m∠UPR = m∠EPR [Given]

m∠UPR = [tex]\frac{1}{2}(m\angle UPE)[/tex]

             = [tex]\frac{1}{2}(110)[/tex]

             = 55°

Since, m∠SRU = m∠UPR [Given in the picture]

m∠SRU = 55°

m∠SRE = m∠SRU + m∠URP + m∠PRE

85° = 55° + m∠URP + m∠PRE

m∠URP + m∠PRE = 30°

Since, m∠URP = m∠PRE

m∠URP + m∠URP = 30°

m∠URP = 15°

Since, m∠URP = m∠SUR [Given in he picture]

m∠SUR = 15°

i attached a picture please tell me where she made a mistake i am really struggling thanks.

Answers

Answer:

step 1 is wrong ........

Brian has £98. Colin takes £y. How much is left?
£

Answers

Answer:

he has £98-y

Step-by-step explanation:

im not sure though

simplify the expression (-6i)(-6i)​

Answers

Answer:

36i^2 i think that's right

Write the following equation in slope-intercept form: y-3=2x. *

Answers

Answer:

y = 2x + 3

Step-by-step explanation:

Slope- intercept form: y = mx + b

y - 3 = 2x

     y = 2x + 3

Which graph is the graph of y-2=4(x+5)

Answers

Answer:

The answer is C

Answer:

A

Step-by-step explanation:

y=4(x+5)+2

y=4x+20+2

y=4x+22

The Y-intercept is going to be 22, so we can already eliminate D and C. and so the difference between A and B is that B is a negative line and A is not. And since the slope is not negative in the equation, B cannot be the answer, so A is the answer.

Which statement is true when 3.4 is placed in the blank? 10.2 ÷ ___ = 0.3 20.4 ÷ 6 = ___ 27.2 ÷ ___ = 0.8 30.6 ÷ 0.9 = ___

Answers

The answer is the second one! (20.4 divided by 6) :)

I will mark brainliest please help ​

Answers

3.75 quarts=15 cups

Suppose y varies directly with x. Write a direct variation equation that relates x and y when y = 6 and x = 12

Answers

Answer:

y = 1/2x

Step-by-step explanation:

y = 6

x = 12

y = ax

6 = a(12)

a = 6/12

a = 1/2

y = 1/2x

Hope this helps!

What is the distance between the points (-9,5) and (8,5)

Answers

Answer:

17 units

Step-by-step explanation:

Use distance formula, [tex] d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} [/tex], to find the distance between (-9, 5) and (8, 5):

Let,

[tex] (x_1, y_1) = (-9, 5) [/tex]

[tex] (x_2, y_2) = (8, 5) [/tex]

Plug in the values into the distance formula:

[tex] d = \sqrt{(8 - (-9))^2 + (5 - 5)^2} [/tex]

[tex] d = \sqrt{(17)^2 + (0)^2} [/tex]

[tex] d = \sqrt{(289 + 0)} [/tex]

[tex] d = \sqrt{289} [/tex]

[tex] d = 17 [/tex]

HELP ME YO I LISTEN TO TRIPPIE REDD

Answers

Answer: blank = 2

Step-by-step explanation:

i checked the denominators to see if they had some form of correlation. i did this with the denominators because both of them were given. i saw that 16 is twice the number of 8, so i just said "what is twice the number of 1?" and got my answer.

Answer:

2

Step-by-step explanation:

Trippie is amazing, good job. What's your favorite song from him mine is Excitement.

Do this worksheets if someone do I will make him or her brainly if correct.

Answers

Answer 17: -6/25-29%-3/10-1/3-34.5%-

Explanation: 6/25 is .24 as a decimal, 29 is .29, 3/10 is .30, 1/3 is .33, and 34.5 is .34

Answer 18: 78% is the same as 7.8/10 not 7/8. 7/8 as a percent is 87.5%

Which is an x-intercept of the graph of the function Y = Cot(3x)?

Answers

Answer:

A on ed 2021

Step-by-step explanation:

if you go on Desmos graphing calculator and graph y = cot(3x)

then graph the points

A. (pi/6, 0)

B. (pi/3, 0)

C. (3pi, 0)

D. (6pi, 0)

POINT A. (pi/6, 0) is the only point that intercepts the graph

The x-intercept of the graph of the function y = cot(3x) is ,

⇒ (π/6, 0)

What is mean by Function?

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Here, The graph of the function is given as:

y = cot(3x)

Now, To determine the x-intercept of the graph, we set the graph to 0.

So, we have:

cot(3x) = 0

Take the arccot of both sides;

3x = arccot(0)

Evaluate the arccot of 0

3x = π/2

Divide both sides by 3

x = π/6

Hence, the x-intercept of the graph of the function y = cot(3x) is

⇒ (π/6, 0)

Learn more about x-intercepts at:

brainly.com/question/3951754

#SPJ7

plzzz help: The sequence graphed below can be generated using which formula?

Answers

Answer:

The answer is A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Edge2021

I will mark you Brainly-est pls! I need this done by tomorrow :) it’s 55 points btw

Answers

Answer:

Step-by-step explanation:

9. 1.6f + 0.4j - 13

11. -6y + 13

13. -1/2j + 15

2). Parents and doctors wish to compare a child's he
children's heights of the same age. The height is the variable. Yes or NO

Answers

Answer:

Yes

Step-by-step explanation:

Yes it is the variable

What would be the correct order of operations to evaluate the following expression?

Multiply, Multiply, Add, Subtract

Multiply, Add, Subtract, Subtract

Multiply, Subtract, Add, Add

Multiply, Subtract, Add, Subtract​

Answers

Answer:

d or 4Step-by-step explanation:

Answer:

Multiply,Subtract,Add,Subtract

Step-by-step explanation: Easy, just think

5 + r = 7
what does r =

Answers

Answer:

2

Step-by-step explanation:

5+2=7

does anyone understand this i never get it

Answers

Answer: 18

Step-by-step explanation:

6 ÷ 2 = 3

162 ÷ 54 = 3

The constant ratio is 3

6 × 3 = 18

Hope I helped!

What the slope of this please help :)

Answers

Answer:

-0.1

Step-by-step explanation:

Answer:

The answer to the question provided is:

[tex] - \frac{1}{10} [/tex]

Other Questions
Write the equation of a line with a slope of O through the point (3, -1).y = 3x - 1y = -1x=3x = -1 Ms. Lynette earns $19.50 an hour when she works overtime. She worked overtime twice this week. One day she worked 3 hours of overtime. Her total overtime pay for the week is $146.25.Write an equation to find the number of overtime hours she worked on the second day, x. Please help me with this homework Please help me with my school project! Brainliest and 50 points!Suppose the pair of one-act plays that you've read for this lesson were written as multi-act plays. What more could happen that would make the plays interesting and realistic? Choose one of the plays and describe what could happen in a second and third act. Or, explain what might be added to the beginning of the play that would make the existing act a later act in a longer play. Describe what would happen in the acts you add.The play is Romeo and Juliet. a b c or d for not heat Help plz:)))Ill mark u Brainliest Will mark brainliest!!!Using sin in math solve the one circled in green what is the value of x in x^3-1 Please help 34 points!!!!!!!!How might Piaget explain the following scenario?In science class, elementary students observe bouncing balls and are able to come up with some generalizations about what makes a ball bounce well. They also learn what conditions make glue stick well to materials. However, they are unable to make a prediction about a particular set of materials and how well glue will stick.Creative thinking is easier than logical thinking.Inductive reasoning develops before deductive reasoning.The children are in the pre-operational stage of development.Children at this age are more interested in things that move rapidly. Consider the following heights 1.55, 1.92, 1.60, 1.75, 1.58, 1.67, 1.63, 1.82, 1.76, 1.77, 1.72, 1.85. Use R script to finish the following questions (1) Assign all these heights as vector "height". (2) Compute the mean and sd of "height". (3) What is the length of "height"? (4) How many heights are less than 1.65? (5) Show if each height is larger than 1.60 and smaller than 1.75. Help me please I need help Emily is entering a bicycle race for charity. Her mother pledges $0.70 for every 0.25 mile she bikes. If Emily bikes 4 miles, how much will her mother donate? 6. The diameter of a circle is 9 feet. What is the measure of its circumference? Round to the nearest tenth.A. 28.3 ftB. 63.6 ftC. 4.5 ftD. 14.1 ft 4- Protein foods?? pls answer these i really need these What was the effect of the signing of the Atlantic Charter?It signaled the official U.S. entry into World War II.It enabled the United States to become the great arsenal for democracy.It authorized the U.S. navy to attack German U-boats.It deepened the alliance between the United States and Britain. do all 3 of these or just 1 idc How many 1/2cups are in 7/8cups So I need help, it confuses me a lot.There's the chart and the answers. Use the number line below, where RS = 6y + 3, ST = 4y + 7, and RT = 60. ASAP PLEASEWhich of the following is not associated with a percent daily value on a food label?proteincaloriestotal fatcholesterolCulinary Arts edge 2020