NASA launches a rocket at t=0 seconds. Its height, in meters above sea level, as a function of time is given
by h(t) = - 4.91? + 82t + 241.

Answers

Answer 1
(a) The rock splashes down when h(t) = 0. Set h(t) = 0 and solve for t using quadratic formula.

0 = − 4.9t^2 + 334t + 255

t = -0.75, 68.92

(Throw away the negative answer, since time can't be negative.)

t = 68.92 sec

(b) The rock is at it's peak when the slope of it's trajectory is zero. This trajectory is also the tangent line, so finding when the slope of the tangent line is zero is the goal. To do this, take the derivative of h(t) and set h'(t) = 0.

h'(t) = -9.8t + 334

0 = -9.8t + 334

t = 34.08 sec

Use this time to find the height of the ball h(t), so h(34.08 sec).

h(t) = − 4.9(34.08)^2 + 334(34.08) + 255

h(t) = 5946.6m

And follow me

Related Questions

What is the x-intercept of the function graphed below?

Answers

Answer:

It should be A.

Step-by-step explanation:

what does it mean to draw and label a line a line segment a ray and an angle

Answers

Answer:

A line in geometry is a straight line that goes on infinitely in two directions. To draw a line, you would draw a straight line and add two small arrows on both ends to indicate that they stretch infinitely. To label a line, you would either label two points on the line, or you can assign a letter to the line. (Example: ↔AB or line A)

A line segment is similar to a line, but it doesn't go infinitely in either direction. To draw a line segment, you would draw two points and connect them. To label a line segment, you would label the two endpoints. (Example: ¯AB)

A ray is a line with one side that extends infinitely. To draw a ray, you would draw a point, draw a line from the point going in any direction, and add an arrow on the other end to indicate that it extends forever. To label a ray, you would label the endpoint and some other point on the ray. (Example: →AB)

An angle is the shape formed by two rays that have a common endpoint. To draw an angle, you would draw an endpoint and make two separate rays coming off of it. Then you would draw a short arc in the space between the rays to indicate that it is an angle. There are three ways to label an angle:

1. Label the vertex (∠A)

2. Label a point on one ray, the endpoint, then a point on the other ray (∠BAC)

3. Label the angle with a number or letter (∠1, ∠A)

The slope of the line passing through the points (6, -1) and (7, -2) is

-3
-1
1

Answers

Answer:

-1

Step-by-step explanation:

when inputting our values into the formula for slope, we get (-2 - -1)/(7 - 6). Subtracting gives us -1/1 and our final answer is -1.

p.s tysm

which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation 3x-5=-2x+10?​

Answers

Answer:

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units

Step-by-step explanation:

Answer:

-15 = -5x

Step By Step:

Took the quiz

hola regalo puntos corona para el que conteste primero

Answers

nooooooooooooooooooooooooo

Welp… Umh okay :D

It needed more characters…

Question and choices are in the photo please explain the answer

Answers

Answer:

B.) 33°

Step-by-step explanation:

The size of x in degrees is 33°.

If you bisect P from center O, you can create a right triangle and use the triangle sum rule to find ½ the measure of x°.

Latoya spent $36 on fruit at the grocery store. She spent a totahof $80 at the store. What percentage of the total did she spend on fruit?

Answers

Answer:

45%

Step-by-step explanation:

$80->100%

$36->x

x=36×100/80

x=45%

If 5400=54(100x+54), then x=?

Answers

Answer:

x=23/50

Step-by-step explanation:

Answer:

0.46

Step-by-step explanation:

Divide 5400 by 54 to get rid of it from the right side.

You will get 100=100x+54

Then subtract 54 from 100.

46=100x

Lastly, divide your number by 100 to get x.

38. In a right triangle, if one acute angle has measure 8x + 5 and the other
has measure 4x + 9, find the larger of these two angles.
55.67
62.4
57.92
64.61
None of the above

Answers

We know that : The Sum of the angles in a triangle should be equal to 180°

Given : The Triangle is a Right angled Triangle

It means : One of the Angle in the triangle is 90°

It means : The sum of the other two angles should be equal to 90°

Given : One acute angle is 8x + 5 and the other one is 4x + 9

⇒   8x + 5 + 4x + 9 = 90°

⇒   12x + 14 = 90°

⇒   12x = 76°

⇒   x = 6.333°

The larger angle among the acute angles is 8x + 5

⇒   8(6.333) + 5

⇒   50.67 + 5

⇒   55.67

[tex]\huge\bold{Given :}[/tex]

Angle 1 = ( 8x + 5 ) ...(i)

Angle 2 = ( 4x + 9 ) ...(ii)

Angle 3 = 90° ( ∵ it is a right-angled triangle )

[tex]\huge\bold{To\:find :}[/tex]

The value of the larger angle of the two acute angles.

[tex]\large\mathfrak{{\pmb{\underline{\orange{Solution}}{\orange{:}}}}}[/tex]

[tex]{\boxed{\mathcal{\red{ A. \:55.67° .\:}}}}[/tex]. ✅

[tex]\large\mathfrak{{\pmb{\underline{\blue{Step-by-step\:explanation}}{\blue{:}}}}}[/tex]

We know that,

[tex]\sf\pink{Sum\:of\:angles\:of\:a\:triangle\:=\:180°}[/tex]

➪ ∠ 1 + ∠ 2 + ∠ 3 = 180°

8x + 5 + 4x + 9 + 90° = 180°

12x + 104° = 180°

12x = 180° - 104°

12x = 76°

x = [tex] \frac{76° }{12} [/tex]

x = 6.333°

The value of x is 6.333°.

Now,

Substituting the value of x in eq. (i) & (ii), we have

Angle 1 = 8x + 5

= 8 x 6.333 + 5

= 50.666 + 5

= 55.67°

Angle 2 = 4x + 9

= 4 x 6.333 + 9

= 25.332 + 9

= 34.332°

Clearly, angle 1 is greater than angle 2.

Therefore, the value of the larger angle of the two acute angles is 55.67°.

[tex]\huge{\textbf{\textsf{{\orange{My}}{\blue{st}}{\pink{iq}}{\purple{ue}}{\red{35}}{\green{♡}}}}}[/tex]

Please help with this math problem

Answers

[tex]x=2+½*\sqrt{10} [/tex]

or

[tex]x=2-½*\sqrt{10} [/tex]

Answer:

Solution given:

y=2x²-5x+6.....[1]

y=3x+3.........….[2]

solving equation 1&2

2x²-5x+6=3x+3

2x²-5x-3x+6-3=0

2x²-8x+3=0

comparing above equation with ax²+bx+c=0 we get

a=2

b=-8

c=3

by using quadratic equation

[tex]x=\frac{+8±\sqrt{(-8)²-4*2*3}}{2*2}[/tex]

[tex]x=\frac{+8±2\sqrt{10}}{4}[/tex]

taking positive

[tex]x=\frac{+8+2\sqrt{10}}{4}[/tex]

[tex]x=2+½*\sqrt{10} [/tex]

taking negative

[tex]x=2-½*\sqrt{10} [/tex]

y=2x²-5x+6y=3x+3

Equate

2x²-5x+6=3x+3=02x²-8x+3=0

Solve for x

x=8±√64-4(2)(3)/4x=8±√64-24/4x=8±√40/4x=8±2√10/4x=2±1/2√10

Un buzo profesional está explorando el fondo marino a 48 metros bajo el nivel del mar (−48 m). Al volver a la superficie del mar (0 m), debe hacer pausas de seguridad que evitan cambios bruscos de presión: debe subir nadando verticalmente 8 metros en un minuto, detenerse durante 5 minutos, luego volver a subir 8 metros en un minuto, y así hasta llegar a la superficie.

Answers

Respuesta:

31 minutos para llegar a la superficie del mar.

Explicación paso a paso:

Dado que :

Profundidad inicial = 48 m

8 metros = 1 minuto

Tiempo de parada por cada minuto de nado vertical = 5 minutos

Por lo tanto,

1 minuto = (48 - 8) = 40 metros

Tiempo de parada = 5 minutos

1 minuto = (40 - 8) = 32 metros

Tiempo de parada = 5 minutos

1 minuto = (32 - 8) = 24 m

Tiempo de parada = 5 minutos

1 minuto = (24 - 8) = 16 m

Tiempo de parada = 5 minutos

1 minuto = (16 - 8) = 8 m

Tiempo de parada = 5 minutos

1 minuto = 8 - 8 = 0 (superficie del mar)

(1 * 6) minuto + (5 * 5) minuto

6 + 25 = 31 minutos

31 minutos para llegar a la superficie.

HELP ASAP PLEASE

What translation is made from f(x) = x to f(x) = (x + 3).

translation 3 units to the left

translation 3 units up

translation 3 units down

translation 3 units to the right​

Answers

Answer:

3 to the left

Step-by-step explanation:

if it is the brackets it affects X and it usually is the opposite so if shown plus then it means to the left/ means minus

Answer:

translation 3 units up

Step-by-step explanation:

Given f(x) then f(x) + c is a vertical translation of f(x)

• If  c > 0 then a shift up of c units

• If c < 0 then a shift down of c units

Then

f(x) = x + 3

represents a translation of 3 units up

Find all solutions of the equation in the interval [0, 2pi).
- 4 sinx= -cos²x+1
Write your answer in radians in terms of pi.
If there is more than one solution, separate them with commas.

Answers

Answer:

x = 0 , π

Step-by-step explanation:

[tex]-4 \sin x = 1 - cos^2 x[/tex]

Rewrite it by using the identity [tex]\sin^2x + \cos^2x = 1[/tex]

[tex]=> -4\sin x = \sin^2x[/tex]

Add 4sin x to both the sides.

[tex]=> -4\sin x + 4\sin x = sin^2x + 4\sin x[/tex]

[tex]=> \sin^2x + 4\sin x = 0[/tex]

Take sin x common from the expression in L.H.S.

[tex]=> \sin x(\sin x + 4)=0[/tex]

Here , we can get two more equations to find x.

1) [tex]\sin x(\sin x + 4)=0[/tex]

Divide both the sides by sin x

[tex]=> \frac{\sin x(\sin x + 4)}{\sin x} = \frac{0}{\sin x}[/tex]

[tex]=> \sin x + 4 = 0[/tex]

Substract 4 from both the sides.

[tex]=> \sin x + 4 - 4 = 0 - 4[/tex]

[tex]=> \sin x = -4[/tex]

[tex]=> x = No \; Solution[/tex]

2) [tex]\sin x(\sin x + 4)=0[/tex]

Divide both the sides by (sin x + 4)

[tex]=> \frac{\sin x(\sin x + 4)}{\sin x + 4} = \frac{0}{\sin x + 4}[/tex]

[tex]=> \sin x = 0[/tex]

[tex]=> x = 0 \; , \pi[/tex] over interval [0 , 2π).

Let a = -4.82 and b = 4.35. All of the following statements are true except

The sum of a and b is negative.
The product of a and - b is positive.
The quotient of a and - b is the same as the quotient of - a and b.
The distance between a and b on the number line is 0.47 units.

Answers

Answer:

the sum of -4.82 and 4.35 = -0.47

so a is correct

the product of -4.82 and 4.35 = -20.967

so b is incorrect

the quotient of -4.82 and -4.35 is 1.10804597701

the quotient of 4.82 and 4.35 is 1.10804597701

so c is correct

if we subtract 4.35 from -4.82 we get -9.17

so d is incorrect

Hope This Helps!!!

6
(
p
+
6
)

3
(
p
+
3
)

Answers

Answer:

3p +27

Step-by-step explanation:

6( p+6) - 3(p+3)

Distribute

6p +36 - 3p -9

Combine like terms

6p -3p +36-9

3p +27

the answer to the question is 3p+27

Factor Each Completely: x^2-15x+56

Answers

(X-7)(x-8). That is correct

how can I solve it which method should I use please answer me ! ​

Answers

7^1 last digit is 7
7^2 last digit is 9
7^3 last digit is 3
7^4 last digit is 1
7^5 last digit is 7
So it repeats every 4 times
190=47*4+2, so your desired answer is 9

Can some one help me out with this please?

Answers

Answer:

GOD BLESS YOU

Step-by-step explanation:

Mai goes running Monday , Wednesday , and Friday of each week . Each Monday she runs 3.5 miles , each Wednesday she runs 5.5 miles , and each Friday she runs 7.25 miles . How many total miles does she run in 8 weeks ?

Answers

Answer: 130 miles

Step-by-step explanation:

Given

Mai goes running Monday, Wedenesday and friday

For Monday it is 3.5 miles

For Wednesday it is 5.5 miles

For Friday it is 7.25 miles

Total distance traveled in a week

[tex]\Rightarrow 3.5+5.5+7.25\\\Rightarrow 16.25\ \text{miles}[/tex]

For 8 week it is

[tex]\Rightarrow 16.25\times 8\\\Rightarrow 130\ \text{miles}[/tex]

the question is on the image
(explain each step)​

Answers

Answer:  x = 35

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

Explanation:

All three angles must add to 180. This is true for any triangle.

x+x+110 = 180

2x+110 = 180

2x = 180-110 ... subtract 110 from both sides

2x = 70

x = 70/2 .... divide both sides by 2

x = 35

As a check: 35+35+110 = 180 which helps confirm the answer.

Answer:

Step-by-step explanation:

x + x + 110 = 180 degree (sum of interior angles of a triangle)

2x + 110 = 180

2x = 180 - 110

x = 70/2

x = 35 degree

The summit elevation of a volcano is the elevation of the top of the volcano relative to sea level. The summit elevation of the volcano Kliauea in Hawaii is 1227 meters. The summit elevation of the underwater volcano Loihi in the Pacific Ocean is -969 meters. Which summit is closer to sea level?

Answers

Answer:

volcano Loihi

Step-by-step explanation:

Distance between volcano top and sea level is the summit elevation :

Summit elevation of volcano kliauea = 1227 miles

Summit elevation of volcano Loihi = - 969 m

The summit closer to sea level is that whose absolute summit level elevation is smaller :

Absolute values :

volcano kliauea = 1227 m

volcano Loihi = |-969| = 969 m

969 < 1227

Hence, volcano Loihi is closer to sea level

What is the value of (-1/2) to the power of 4

Answers

Answer:

1/16

Step by Step Explanation:

If you multiply -1/2 · -1/2 · -1/2 · -1/2 you get 1/16.

Quadrilateral QRST is a parallelogram. Solve for x (3x+5) (9x-17)

Answers

Given:

Consider the below figure attached with this equation.

Quadrilateral QRST is a parallelogram.

To find:

The value of x.

Solution:

We know that the sum of two consecutive interior angles of a parallelogram is 180 degrees because they are supplementary angles.

In parallelogram QRST,

[tex]m\angle Q+m\angle T=180^\circ[/tex]

[tex](3x+5)^\circ+(9x-17)^\circ=180^\circ[/tex]

[tex](12x-12)^\circ=180^\circ[/tex]

On comparing both sides, we get

[tex]12x-12=180[/tex]

[tex]12x=180+12[/tex]

[tex]12x=192[/tex]

Divide both sides by 12.

[tex]x=\dfrac{192}{12}[/tex]

[tex]x=16[/tex]

Therefore, the value of x is 16.

The sum of three consecutive multiples of 9 is 567.
One of these multiples is

Answers

If three consecutive values add to 567 the middle value must be 567/3 = 189
Since the values are multiples of 9, the other values must be 189 - 9 and 189 + 9

The three values are 180, 189, 198

Which of the following show the factored equivalent form of f(x) = (-24x2 - 68x + 12(x+7) and its zeros?

Answers

Answer:

The answer is B

Step-by-step explanation:

Solve for X
PLEASE HELP ITS URGENT

Answers

With pythagorean theorem and working backwards, you do 8100-1225 to get 6875, you then get the square root of that to get x=82.91 or rounded to 82.92

Answer:

X=28.3155948

Step-by-step explanation:

So we only need to use the Adjacent and the Hypotenuse

This means you need to use cos(

so it will be cos(36)=x/35

you multiply both sides by 35

35cos(36)=x

x=28.3155948

I apologise if this is wrong but it should be correct

A 23 foot ladder is leaning against a wall. The angle of elevation of the ladder with the ground is `58\ degrees.` How far away is the bottom of the ladder from the bottom of the wall? Round your answer to the nearest hundredth.

Answers

Answer: 12.19 ft

Step-by-step explanation:

Given

Length of ladder is [tex]23 ft[/tex]

Angle of elevation is [tex]58^{\circ}[/tex]

Suppose the bottom of the ladder is x ft away from the bottom of the wall

from the figure, we can write

[tex]\Rightarrow \cos 58^{\circ}=\dfrac{x}{23}\\\\\Rightarrow x=23\cos 58^{\circ}\\\Rightarrow x=12.19\ ft[/tex]

Thus, the distance is 12.19 ft

express . 05 as a proper fraction in its lowest terms​

Answers

because 5 is in the hundredth place, we know it’s 5/100. then, you can divide top and bottom by 5. so 1/20

Please help!!!
The area of a rectangular region is 6.2 × 10^3 square feet. The length

of the rectangular region is 1.55 × 10^2 feet. How much does it cost to

surround the region with a border that costs $0.80 per foot?

Answers

Answer:

312

Step-by-step explanation:

First we need to determine the width

A = l*w

6.2 * 10 ^3 = 1.55 * 10 ^2 * w

Divide each side by 1.55 * 10 ^2

6.2 ^ 10 ^3  /1.55 * 10 ^2 = 1.55 * 10 ^2 * w / 1.55 * 10 ^2

Changing from scientific notation to standard

6200/155 = w

40 = w

Then we need to determine the perimeter

P = 2(l+w)

P = 2( 155+40)

P =2( 195)

P = 390

Now multiply by the price

390 *.80

312


Patrick wants to buy a new computer. He already has $275 saved and plans to save $125
each month. The price of the computer is currently $1,850, but Patrick expects the price
to drop by $100 each month. Patrick wants to determine the number of months he will
need to save.
.
If x represents the number of months, then write an equation to represent A, the total
amount Patrick saves.
If x represents the number of months, then write an equation to represent C, the cost of
the computer.
.
Use your equations from part “a” and part “b” to determine how many months he will
need to save before he can buy the computer. Show your work or explain how you got
your answer

Answers

Answer:

The answer is below

Step-by-step explanation:

The equation for a linear function is given as:

y = mx + b

where m is the slope of the function (that is the rate of change), b is the initial value of y when x is 0.

a) Since A represent the total amount saved and x represents the number of months. The relationship between A and x is given by:

A = -100x + 1850

The price reduces by $100 each month, while the initial price is currently $1,850.

B) Since C represent the cost of computer and x represents the number of months. The relationship between C and x is given by:

C = 125x + 275

The price increases by $125 each month, while the initial price is currently $275.

C) To determine the amount time needed before he can buy the computer, we  use:

A = C

-100x + 1850 = 125x + 275

125x + 100x = 1850 - 275

225x = 1575

x = 7

Therefore it would take 7 months before he can buy a computer

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