The height of a fireworks rocket launched from a platform can be approximated by h=-5t+ 30t +35, where h is the height in meters and t is the time in seconds. Find the time it takes the rocket to reach the ground after it is launched.​

Answers

Answer 1

Answer:

Step-by-step explanation:

h=-5t+ 30t +35, where h is the height in meters and t is the time in seconds.

Considering the fact that the launched Rocket will hit the ground, it implies that the height will be zero. Hence the equation will be .

0 =-5t+ 30t +35

-5t+30t = -35

25t = -35

To find t, divide both sides by 25

25t/25 = -35/25

t = - 7/5

t = -1.4secs

Hence the time for the launched rocket to hit the ground will be -1.4secs


Related Questions

BC =
Round your answer to the nearest hundredth.

Answers

Answer:

Since its a right triangle you automatically know the C is 90 degrees. And since all triangle have to add up to 180 degrees, you know B has to equal 40 degrees.

A= 50

B= 40

C= 90

B + C

40 + 90

BC = 130 degrees

Answer:

2.3

Step-by-step explanation:

Khan

A circle has a radius of 5/3 units and is centered at (9.2 -7.4)

Write the equation of the Circle.

Answers

Answer:

(x - 9.2)^2 + (y + 7.4)^2 = (5/3)^2

Step-by-step explanation:

We start with (x - h)^2 + (y - k)^2 = r^2.  The center is (h, k) and the radius is r.

Then we have:

(x - 9.2)^2 + (y + 7.4)^2 = (5/3)^2

I need an explanation step by step for this question. Thx

Answers

Answer:

1:5, 5, 15

Step-by-step explanation:

The original ratio of red marbles to white marbles is 6:30 and you need to know how many white marbles are expected with 3 red marbles so you have to make the # of red marbles 3 so you can divide by 2 and you'll get 15 white marble or you could've divided both sides by 6 and get the ratio of red marbles to white marbles as 1:5 and you can see that for every one red marble there is 5 white marbles.

Please help with this question i really need help

Answers

Answer:

1,2,3 and then the last two

Step-by-step explanation:

Simplify:

[tex]\sqrt{(4-3\pi)^2 }[/tex]

Answers

Answer:

-3π+4

Step-by-step explanation:

negative three pi plus 4   BRAINLIEST :)

Answer:

[tex]\left(4-3\pi \right)^2 \text{ is a perfect square trinomial}[/tex]

[tex]\left(4-3\pi \right)^2=16-24\pi +9\pi ^2[/tex]

[tex]\sqrt{16-24\pi +9\pi ^2}\approx 5.42[/tex]

[tex]\sqrt{(4 -3\pi )^2} = -4 + 3\pi[/tex]

[tex]\sqrt{(4-3\pi )^2} = |4-3\pi|[/tex]

State that this is wrong, it cannot be negative

[tex]\sqrt{(4 -3\pi )^2} = 4 - 3\pi[/tex]

So,

[tex]\sqrt{(4 -3\pi )^2} \neq 4 - 3\pi[/tex]

State that [tex]\sqrt{a^2}=|a|[/tex]

It is [tex]a[/tex] assuming that a > 0

But we don't know if a is greater than 0.

of the following numbers, which has the most factors of 3?
a) 81
b) 270
c) 999
d) 3333

Answers

Answer:

81 has the most factors of 3

Step-by-step explanation:

To conclude which of the following options has the most factors of 3, take each of the number's prime factorization, which will help us solve the problem.

( 1 ) 81 is a composite number and is 9 squared. Knowing that 3 squared = 9, we can say that the prime factorization of 81 = 3 [tex]*[/tex] 3 [tex]*[/tex] 3 [tex]*[/tex] 3, which can also be denoted as 3⁴.

( 2 ) 270 is a composite number. The exponents in the prime factorization are 1, 3, and 1, and therefore it's prime factorization is - 3 [tex]*[/tex] 5 [tex]*[/tex] 3 [tex]*[/tex] 2 [tex]*[/tex] 3, composed of 3 3s.

( 3 ) If we put all of it together we have the factors 3 x 3 x 3 x 37 = 999. It can also be written in exponential form, with 3 to the power of 3 - hence having 3 factors of 3.

And finally the value 3333 has the prime factorization of 3 [tex]*[/tex] 11 [tex]*[/tex] 101, and as you can see it has 1 factor of 3. 81, having 4 factors of 3, is present with the most factors, and therefore is our solution.

Number 81 has the most number of factor 3. Option A is correct.

A number from the options to be determined that has the most number of factor 3.

What are the factors?

factors can be defined by splitting the value into multipliable values.

Here,
Factors of 81 = 3,3,3,3            Number of factor 3 = 4
Factors of 270 =2,3,3,3,5       Number of factor 3 = 3  
Factors of 999 =3,3,11             Number of factor 3 = 2
Factors of 3333 = 3,11             Number of factor 3 = 1
As per the above comparison, 81 has the most number of factor 3.

Thus, Number 81 has the most number of factors 3.

Learn more about Factors here:
https://brainly.com/question/24182713

#SPJ2

What is the slope of a line that passes through points (2,17) and (3,24)?

Answers

Slope: [tex]\frac{y2-y1}{x2-x1}[/tex]

= [tex]\frac{24 - 17}{3 - 2}[/tex] = [tex]\frac{7}{1}[/tex] = 7

Slope = 7

Happy to help!

find the area of a triangle​

Answers

Answer:

A = 15 yd^2

Step-by-step explanation:

The area of a triangle

A = 1/2 bh where b is the base length and h is the height

A =1/2 (10) * 3

A = 15 yd^2

Answer:

15 yd squared

Step-by-step explanation:

Multiply the base by the height and divide by 2. So 10x3 is 30 and 30 divided by 2 is 15.

I need help with this please ASAP!!!!

Answers

A and D are irrational

In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

Someone please help me. I’m not good at mah but I would be thankful for ur help.

Answers

the perimeter is 44 inches!!

Answer:

1. 44 inches

hope this helps :)

(x + m)(x + n) if m= 5 and n = -7

Answers

Answer:

[tex]x^2-2x-35[/tex]

Step-by-step explanation:

[tex](x+5)(x-7)=[/tex]

[tex]x^2+5x-7x-35=[/tex]

[tex]x^2-2x-35[/tex]

Hope this helps!

Answer:

X^2-2x-35

Step-by-step explanation:

(X)(x)+(x)(-7)+(5)(x)+(5)(-7)

X^2-7x+5x-35

X^2-2x-35

Hope that was the answer you were looking for

Find the distance between the points (0, –3) and (4, 0).
Question 12 options:

A)

25

B)

5

C)

7

D)

1

Answers

Answer:

5 units

Step-by-step explanation:

[tex]Distance = \sqrt{(x2 - x1)^2 + (y2 - y1)^2}[/tex]

[tex]d = \sqrt{(0 - 4)^2 + (-3 - 0)^2}[/tex]

[tex]d = \sqrt{(-4)^2 + (-3)^2}[/tex]

[tex]d = \sqrt{16 + 9}[/tex]

[tex]d = \sqrt{25}[/tex]

[tex]d = 5[/tex]

So, the distance between the points is 5 units which is letter choice B.

A dance floor is in the shape of a rectangle.
It is 25 meters long and 24 meters wide.
What is its perimeter?
C
meters
Х
5
?

Answers

Answer: 98

Step-by-step explanation: 25+24+25+24

There are two parts to a rectangle. The opposite sides are the same. You add them all up to equal 98.

Hope this helps and would appreciate getting brainliest to level up :)

Please please please please please please please pppppppllllllllllleeeeeeeaaaaasssseeehelp

Answers

Answer:

70

Step-by-step explanation:

its in the tens value

Answer:

70

Step-by-step explanation:

The number is in the tenths place.

1+1
this is a joke lol

Answers

I think the sum would be 2
The answer would be 3

Write a linear equation from a slope and a point

Answers

Slope=4/2 point=(1,2)
2=4/2(1)+b
b=0
y=2x

This is urgent, please answer!


A cake has two layers as shown. Each layer is in the shape of a cube.
The bottom of the cake and the area where the two cakes meet are not frosted. How much of the cake is frosted?

Answers

Answer:

I believe it is 65 inches.

Step-by-step explanation:

If you add all the surfaces up besides the sides that are not frosted then it is 65 inches.

Find the 26th term in the arithmetic sequence: 20, 26, 32, 38, ...

Answers

Answer:

170

Step-by-step explanation:

20 + (26 - 1)6

= 20 + (25)6

= 20 + 150

= 170

The 26th term in the arithmetic sequence: 20, 26, 32, 38, ... is 170

Given:

20, 26, 32, 38, ...

nth term of an arithmetic sequence is given by

nth term = a + (n - 1) d

where,

a = first termd = common differencen = nth term

20, 26, 32, 38, ...

a = 20

d = 26 - 20

= 6

26th term = a + (n - 1) d

= 20 + (26 - 1) 6

= 20 + (25) 6

= 20 + 150

= 170

Therefore, the 26th term in the arithmetic sequence is 170

Learn more about arithmetic sequence:

https://brainly.com/question/6561461

Kathy found the volume of the figure using the expression (4 * 3 * 8) + (10 * 3 * 4). Sandy found the volume of the figure using the expression (3 * 10 x 4) + (4 * 3 * 4). Use the drop-down menus to explain who is correct. 10 cm Click the arrows to choose an answer from each menu, The expression for the volume of the figure was correctly determined by Choose... because the figure was divided into two rectangular → prisms that Choose...

Answers

Answer:

The correct options are;

1) Sandy is correct

2) The figure was divided into two rectangular prisms that are calculated separately

Step-by-step explanation:

Here we have to divide the figure into two rectangular prisms so as not to calculate for a dimension twice

Therefore, the figure can be split into a horizontal prism at the top with dimensions and volume = 10 × 4 × 3 and the vertical prism below will now have a dimension and hence, volume of 4 × 4 × 3

Therefore the volume of the figure is the sum of the volumes of the two prisms found as follows;

Volume of the figure =  10 × 4 × 3 + 4 × 4 × 3  = 168

We can try the othe way to confirm as follows

Volume of the prism below = 4 × 3 × 8 = 96

Volume of the horizontal prism above is now = 4 × 3 × 6 = 72

Volumre of the figure = 96 + 72 = 168

Therefore, since the volume = (10 × 4 × 3) + (4 × 4 × 3), Sandy is correct

Because the figure was divided into two rectangular prisms that are calculated separately.

Answer:

1(sandy is correct)

2(do not overlap

Step-by-step explanation:

help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Choice 2 on the upper right

Step-by-step explanation:

counterclockwise is to the left.

Solve the following system of equations using any method you want.
y + 2x = 2
2x - 5y = 14 please help

Answers

2x+y=2
2x-5y=14
Subtract the two equation
6y= -12
Y= - 2
Put y= -2 in any equation
2x-2=2
2x=4
X=2

Answer:

y = - 2, x = 2

Step-by-step explanation:

Remove x and solve for y

2x - 2x - 5y - y = 12

-6y = 12

y = - 2

Substitute y back into the equation

-2 + 2x = 2

2x = 4

x = 2

Ken baked a pan of brownies for a potluck. The number of squares he cuts the brownies into will depend on the number of people attending the potluck. s = the number of squares Ken cuts the brownies into. p = the number of people attending the potluck. Which of the variables is independent and which is dependent?

Answers

Answer:

P is the independent variable while S is the dependent variable

Hope this Helps :)

Please Help Now Running out of time! In Sal’s sock drawer, there are 2 red, 2 blue, 2 yellow, 2 black, and 2 green socks. If he randomly picks one sock from the drawer, and then another, which fractions should Sal multiply to find the probability of choosing a pair of green socks?

Answers

Answer:

Step-by-step explanation:

C

Answer:

C

Step-by-step explanation:

2/10 1/9

Which has a value closest to 9?
✓99
V83
VIO
V63

Answers

Answer:

[tex]\sqrt{83\\}[/tex] has the closet value to 9 bc its 9.11

V83 because it makes the most sense

Which of the following inequalities is correct?

Answers

Answer:

a < b < c

Step-by-step explanation:

a is -4, which is less than b, at 1, and c at 7.

If this answer is correct, please make me Brainliest!

Answer:

the answer is a it cant not be b,c

May someone please help with this graph and equation please?​

Answers

Answer:

y=-2x+8

Step-by-step explanation:

What is the first quartile of this data set?
11, 12, 15, 16, 17, 19, 22, 24, 29, 33, 38

A. 11

B. 29

C. 19

D. 15

Answers

First we have to find the median

The median is 19 when we cross off all the numbers

Now we have 11 12 15 16 and 17 in the first quartile


Cross 11 and 12 and cross 16 and 17, off which leaves you with 15


Answer is option d

Answer:

i did it

Step-by-step explanation:

!!!!!!NEED HELP !!!!!! y=-50x + 750 which of the following does NOT match the equation shown.

Answers

Answer:

I think its B

Hope it helps :/

Answer:

y=10x-50

Step-by-step explanation:

The legs of a right triangle measure 6 and sqrt(x). The
hypotenuse measures 10. Determine the value of x.

Answers

Answer:

The value of x is 64

Step-by-step explanation:

Given:

Length of the Legs of the triangle = 6 and √x

Hypothenus = 10

Required

Find x?

The legs of a rectangle is what is regarded to as the adjacent and the opposite sides of the triangle.

Assuming the following

Adjacent = 6 and Opposite = √x

We can then solve the given example using Pythagoras theorem as foloes;

[tex]Hyp^2 = Opp^2 + Adj^2[/tex]

By substituting 10 for Hyp; 6 for Adj and √x for Opp

[tex]10^2 = 6^2 + (\sqrt{x})^2[/tex]

Simplify

[tex]100 = 36 + z[/tex]

Collect Like Terms

[tex]x = 64[/tex][tex]x = 100 - 36[/tex]

Hence, the value of x is 64

Regular hexagon FGHIJK shares a common shares a common center with square ABCD on a coordinate plane .

Answers

Answer:

"The answer is the yellow lines in the attached figure.

Step-by-step explanation: As shown in the attached figure, regular hexagon FGHIJK and square ABCD shares common centre on the co-ordinate plane and AB || FG.

We are to find the line across which the combined figure will reflect onto itself.

In the attached figure, we see two lines which are yellow in colour. We can easily detect that the figure will be reflected onto itself if these two lines acts as a mirror separately.

Hence these yellow lines are the required lines."

Hope this helps!

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