Mathematics High School

PLS HELP ME

The height of a javelin after it has left the hand of the thrower can be modeled by the function h=3(4t-2)-t + 4), where h is the height of the javelin and t is the time in seconds. How long is the javelin in the air?

Answers

Answer 1

Answer:

3.5 seconds

Step-by-step explanation:

Given function:

h(t) = 3(4t - 2)(- t + 4)

The time the javelin is in the air is the difference of zero's of the function:

3(4t - 2)(- t + 4) = 0(4t - 2)(- t + 4)4t - 2 = 0 ⇒ t = 0.5-t + 4 = 0 ⇒ t = 4

Time in the air:

4 - 0.5 = 3.5 seconds

It is better visible on the graph

PLS HELP ME The Height Of A Javelin After It Has Left The Hand Of The Thrower Can Be Modeled By The Function

Related Questions

If
the volume of a
cube is 3375 cm3,


find
its
height
and base​

Answers

Answer:

If it is a cube then its height and base are equal which is the cube root of 3,375 or 15

Step-by-step explanation:

Which benchmark is between
7/8
and 7/4

A: 1/2
B: 1

Answers

B.
7/8 = .875
7/4 = 1.75
7/8 < 1 < 7/4

Here are the scores that Jenna has
received on her seven quizzes.
16, 11, 20, 16, 12, 17, 18
What is the upper quartile?

Answers

Answer:

18

Step-by-step explanation:

median = 16

lower quartile = 12

upper quartile = 18

f(x)=7x-2 g(x)=x2+1 h(x)=3x (x at the corner of 3 ) a- find gh(2) b- find f-1(x)

Answers

Answer: 37, [tex]\frac{x+2}{7}[/tex]

Step-by-step explanation:

Given

[tex]f(x)=7x-2\\g(x)=x^2+1\\h(x)=3x[/tex]

now,

[tex]g(h(x))=(3x)^2+1\\g(h(x))=9x^2+1[/tex]

for x=2

[tex]g(h(2))=9\cdot (2)^2+1\\g(h(2))=36+1\\g(h(2))=37[/tex]

Inverse of [tex]f(x)[/tex] is given by

[tex]y=7x-2\\x=\dfrac{y+2}{7}\\\\f^{-1}(x)=\dfrac{x+2}{7}[/tex]

Write an equation for..

“The child’s tickets cost $4 each and the adult’s ticket cost $8 each. Write an equation that would represent the total cost, T, of purchasing a child’s tickets, c, and an adult’s tickets, a.”

Answers

Answer:

cxa=t cause you are mulltipling to find the total cost

Answer:

Step-by-step explanation:

A child´s ticket costs $4 and adults ticket costs $8. If we want one of each we need to add both numbers together, 4 plus 8 equals 12. The total cost of a child ticket and an adult ticket is $12.

The questions asked to write an equation; the equation would be:

C+A=T  it could also be written as A+C=T,  T=A+C or T=C+A.

1200 bricks each of 0.075m3 volume are required to construct a wall of length 25m and height 9m. Find the breadth of the wall.​

Answers

Here's the solution,

Volume of wall :

=》total bricks × volume of each brick

=》1200 × 0.075 m³

=》90 m³

volume of wall :

=》lenght × width × height

=》25 × 9 × width

=》225 × width

now, by equating the volumes, we get

( since they are volume of same wall )

=》225 × width = 90

=》width = 90 ÷ 225

=》width of wall = 0.4 m

GIVING BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 35pts-

(!!You Have To Match Them!!)

Answers

Answer:

See attached

Step-by-step explanation:

The matching pairs are in the picture

Help me please it's 2:00 in the morning and I really need your help with this assignment I have to submit them because the school will be off on June 05 so I have to complete my missing works:( please help

Answers

Answer:

x = 4

Step-by-step explanation:

Here, given that the two triangles are similar, we want to find the value of x

Mathematically, when two triangles are similar, the ratio of their corresponding sides are equal

Thus, we have it that;

ED/EF = XY/YZ

5/2x-1 = 10/14

14(5) = 10(2x-1)

70 = 20x -10

70 + 10 = 20x

20x = 80

x = 80/20

x = 4

Write detailed directions to describe how to algebraically prove if (-1,2) is a point on the line y=3x+5.​

Answers

Answer:

plug in -1 for x and 2 for y

solve equation

Step-by-step explanation:

y= 3x+5

2= 3(-1) + 5

2= -3 + 5

2= 2

Could anyone help me find the surface area of this? I got 340 and I don't think it's right.

Answers

Answer: I got 200

Step-by-step explanation: 14+14+5+5=38*2=76 Thats the front and back and then The sides are 6+6+5+5=22*2=44 then the top and bottom are 14 +14+6+6=40*2=80 then add that all up and 44+80+76=200 (Sorry if its a bit confusing to understand)

Work out :32.4(0.2+2.2)0.8
​

Answers

Step-by-step explanation:

hope it is helpful to you

Answer:

hope it helps you have a good day

i need help which one is the following is correct formula to find slope​

Answers

Answer:

a

Step-by-step explanation:

c) Solve for x given the perimeter of the trapezoid is 277 m.
how do i solve x

Answers

I need the whole question to answer cuz i don’t have the equation to work with

ANSWER PLEASEE. HELPPP

Answers

Answer:

23

Step-by-step explanation:

4

please help what is .25?

Answers

Answer:

0.25 is a decimal

Step-by-step explanation:

Simplify 3t + x + x + 2y and show how you did it help for homework-

Answers

Step-by-step explanation:

3t+x+x+2y3t+2x+2y

hope it helps.

stay safe healthy and happy.

Step-by-step explanation:

3t + x + x + 2y

we can only add terms with the same letter and since it is only t that is common we add it

giving us;

3t + 2x + 2y

I have no idea what the answer so what do you guys think that answer is?

Answers

I think it’s 1!


Because when you look at line y, you go down to where it meets up with line x, (y is negative numbers until it meets with line x) after that it isn’t a negative number and it turns into positive numbers. So it’s 1! I’m so sorry if this is wrong!

Please help me (
9th grade math)

Answers

probably b or d ~~~~~~

Christine has a rectangular poster. The poster is 1.5 meters long and 1.2 meters wide. What is the area of the poster in square centimeters? Do not round your answer. Be sure to include the correct unit in your answer.

Answers

Answer: 180cm^2

Explanation: First, multiply 1.5 by 1.2 to get the area of the rectangle in METERS, which is 1.8. Since the question is asking for the area in CENTIMETERS, multiply 1.8 by 100 (because 1 meter=100 centimeters) to get 180cm^2.

Hope that helped :)

Help me plz i need this done soon ty :

Answers

Answer:

A. $47,403.20

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

For this, the question is about Simple Interest, so the formula is PRT

p- principal (the amount of money you started with)

r- (rate, also the percentage)

t- time (the amount of time it says, in years or so)

So, they had $45,580

Multiply that by 4%, and 4% is 0.04 so multiply 0.04 x 45,580 = 1,823.20. So, the answer is D

Hope this helps!!

-Ketifa

12g^2 + 7g^2 simplify

Answers

Answer:

19g^2

Step-by-step explanation:

Answer:

144 I think????? ????????

Leah rolls two 6-sided number cubes. What is the probability that she rolls a sum equal to 10?
A. 1/11
B. 10/36, or 5/16
C. 2/36, or 1/18
D. 3/36, or 1/12​

Answers

Answer:

D. 3/36, or 1/12

Step-by-step explanation:

The probability of rolling a sum equal to 10 on two six-sided number cubes is 3/36.

This is because of the 36 total outcomes, only 3 have a sum of 10.

In other words, the probability of rolling a sum equal to 10 is 3 in 36, or 3 out of 36 (3/36).

What would be the area of the figure

Answers

Answer:

1.3 + 1.3 = 2.6

2.6 x 2.2 = 5.72

5.72 divided by 2 = 2.86

2.86 x 2 = 5.72

PLEASE HELP!!!!!
Let event A= The student plays Basketball
Let event B= The student plays soccer
What is P(A or B)

Answers

Answer: it’s 7/1”

Step-by-step explanation: just took it

sovle active attachment

Answers

Answer:

p = 5/12

Step-by-step explanation:

-14+6p = -9-6p

Add 6p to each side

-14+6p+6p = -9-6p+6p

-14 +12p = -9

Add 14 to each side

-14+12p = -9 +14

12p =5

Divide by 12

12p/12 = 5/12

p =5/12

answer: p= 5/15 , 0.416…

There are four cards numbered 1 through 4. The number 2 card is chosen randomly and not replaced. Find the probability of choosing a second card that is the number 3.

Answers

Answer:

1/3

Step-by-step explanation:

since number 2 card was not replaced, we have;

probability of picking a second card, 3;

let S be number of sample space

n(S)= 4

n(3)= 1

Pr(3/2)= 1/3

(because since one was already chosen and n, the sample space would reduce)

Simplify to create an equivalent expression.
1+4(6p-9)

Answers

The answer is 24p-35

the circumference of a circle is 128π inches. find the exact length of the diameter.

Answers

Answer:

d≈40.74

Step-by-step explanation:

Using the formulas

C=2πr

d=2r

Solving ford

d=C/ π=128/ π≈40.74367

Hope this helped!!!!!

You can just answer this question (there is no answer)

Answers

You can make your life as a good day for your response and best you have been doing it well ☺I know you don't

Answer

The answer is A.

Step-by-step explanation:

i have big iq

Best answer is getting brainiest

Answers

Answer:

17.8

Step-by-step explanation:

We can find this because we know that to make a cube, we need to do [tex]c*c*c[/tex] or [tex]c^3[/tex]. With this, we can simplify our equation (by taking the root of both sides) to [tex]c=\sqrt[3]{5639.752}[/tex] or 17.8.

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