The function f(t)=-5t^2+15t+50 models the approximate height in feet of an object t seconds after it is launched. how many seconds does it take for the object to hit the ground?

Answers

Answer 1
f(t) can be factored to find the zeros.
.. f(t) = -5(t -5)(t +2) . . . . f(t) = 0 for t=-2, t=5

The object hits the ground after 5 seconds.

Related Questions

The sales tax on a $250 computer is 17.50. find the sales tax rate.

Answers

if we take 250 to be the 100%, what is 17.50 off of it in percentage?

[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 250&100\\ 17.50&t \end{array}\implies \cfrac{250}{17.50}=\cfrac{100}{t}\implies t=\cfrac{17.50\cdot 100}{250}[/tex]

Please help me answer

Answers

1. given
2. transitive prop of equality 
3. subtraction property of equality

Use the formula V = s³, where V is the volume and s is the edge length of the cube, to solve this problem.A cube-shaped bin has an edge length of 34 yard.What is the volume of the container? Enter your answer, as a fraction in simplest form, in the box.

Answers

Volume: 39,304 cubic yards

To find the volume, you simply have to use the formula that is given. It is V = s^3.  This means you multiply the side by itself 3 times.

S x S x S = V
34 x 34 x 34 = 39304 cubic yards

A large bag of marbles contains an equal amount of red, orange, yellow, blue, and green marbles. Brody randomly selects 1 marble from the bag. Which of the following represents the probability of selecting a red, blue, yellow, or green marble
A) 0.8
B) 0.7
C) 0.9
D) 0.6

Answers

the answer will be
[tex] \frac{4}{5} = 0.8[/tex]
hope this helps

Answer:  The correct option is (A) 0.8.

Step-by-step explanation:  Given that a  large bag of marbles contains an equal amount of red, orange, yellow, blue, and green marbles. Brody randomly selects 1 marble from the bag.

We are to find the probability of selecting a red, blue, yellow or green marble.

Let n be the number of each color of marbles in the bag.

That is, the number of red, orange, yellow, blue, and green marbles, each equals n.

Let S denote the sample space of selecting a marble from the bag and A denote the event of selecting a red, blue, yellow or green marble.

Then, we have

n(S) = n + n + n + n + n = 5n,

n(A) = n + n + n + n = 4n.

Therefore, the probability of event A is given by

[tex]P(A)=\dfrac{n(A)}{n(S)}=\dfrac{4n}{5n}=\dfrac{4}{5}=0.8.[/tex]

Thus the required probability selecting a red, blue, yellow or green marble is 0.8.

Option (A) is CORRECT.

Please help.
What are the dimensions of the matrix?
⎡1 0 9⎤
⎢-2 3 5⎢
⎢5 4 -6⎢
⎣11 5 7⎦
Enter your answers in the boxes.
The matrix is a [_] × [_] matrix.

Answers

Matrices always go row x column.

Count the rows: 4

Count the columns: 3

The matrix is a 4 x 3 matrix

The size of a matrix is defined by the number of rows and columns that it contains.

The dimensions of a matrix are the number of rows by the number of columns.

The number of rows and columns of a matrix, written in the form rows×columns.

The given Matrix has four rows and three columns,

The rows go side to side; the columns go up and down. "Row" and "column" are technical terms, and are not interchangeable.

Matrix dimensions are always given with the number of rows first, followed by the number of columns.

The matrix is a [4_] × [3_] matrix.


99pts WILL GIVE BRAINLIEST Use the diagram and given information to answer the questions and prove the statement. Given: X Z 
 Prove: [see image] Re-draw the diagram of the overlapping triangles so that the two triangles are separated.


What additional information would be necessary to prove that the two triangles, XBY and ZAY, are congruent?

What congruency theorem would be applied?

Prove using a list/flow chart proof.

Answers

I will base the figure from the one you attached in the other problem you posted. (Also attached here).

Statements [Reasons]
1. Angle X is congruent to Angle Z [Given]
2. Line XY is congruent to Line YZ [Given]
3. Angle Y is congruent to Angle Y [Congruence is reflexive]
4. Triangle XBY is congruent to Triangle ZAY [ASA]

ANSWER: The ASA (Angle Side Angle) Congruency Theorem could be applied.

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

I agree with the 14x all right, but the remainder of the other part is 178. I'm going to recheck my answer. I'm not confident about using synthetic division for this question. It is 57 years since I did something like this. If I was more confident, I would list the results of synthetic division because it is much easier to show than long division. I'm saying the answer should be 14x + 178.

we are given

[tex]\frac{3x^6-19x^4-4x^3-24x^2+2x+178}{-2x^2-6}[/tex]

we can use long division method to divide it

so, we get

[tex]Quotient=-\frac{3x^4}{2}+14x^2+2x-30[/tex]

[tex]Remainder=14x-2[/tex]...........Answer


A teacher gave his class two quizzes; 80% of the class passed the first quiz, but only 60% of the class passed both quizzes. What percent of those who passed the first quiz also passed the second quiz?

Answers

the answer to the question is 75%

Answer:

75

Step-by-step explanation:

P(2ndquiz|1st quiz)=P(passed both quizzes)/P(1st )=0.06/0.08=0.75 that means 75%

El lote de la familia lópez tiene un lote de 16m*10m y se desea construir una casa de base rectangular en el centro de el.¿que dimensiones debe tener el rectángulo del piso de la casa si tiene un área de 91m2?

Answers

The dimensions of the house should be 7 m by 13 m.

If the house is to be centered, we will take the same amount from the width as we do from the length of the lot for the dimensions.  This gives us (10-x) and (16-x) as the dimensions.

The area of a rectangle is found by multiplying the length and width:
(10-x)(16-x) = 91

Multiplying the binomials we have:
10*16 - x*10 - x*16 -x*(-x) = 91
160 - 10x - 16x --x² = 91
160-10x-16x+x² =91

Combine like terms:
160-26x+x²=91

Rewrite this in standard form:
x²-26x+160=91

Subtract 91 from both sides:
x²-26x+160-91 = 91-91
x²-26x+69 = 0

Factoring this, we look for factors of 69 that sum to -26.  -23*-3 = 69 and -23+-3 = -26, so:

(x-23)(x-3) = 0

Using the zero product property we know that either x-23=0 or x-3=0, so x=23 or x=3. 

x was the amount we take off of the width and length of the lot; if we took 23m off of it, 10-23 gives us a negative amount, which is not realistic. This means both the width and length are subtracted by 3.

10-3 = 7 and 16-3 = 13.

These are the dimensions of the house.

a building in san francisco is shaped like a square pyramid it has a slant height og 856.1 feet and each side of its base is 145 feel long find the lateral area of the building

Answers

we know that

for a Square Pyramid
[lateral area]=4*[a*s/2]--------> 2aS

where
a  is the length side of the square base
S is the slant height
a=145 ft
S=856.1 ft

[lateral area]=2*145*856.1---------> 248269 ft²

the answer is 248269 ft²

30 POINTS + BRAINLIEST! SHOW YOUR WORK FOR BRAINLIEST PLEASE!

Answers

A four sided figure that figs inside a circle is called a cyclic quadrilateral. One of the properties of such a figure is that the opposite angles add up to 180o

2x + 3 + 4x + 3 = 180o
6x + 6 = 180
6x = 174
x = 174 / 6
x = 29

C = 2x + 1
C = 2*29 + 1
C = 59o

2x+3+4x+3= 180o     6x+6=180    6x=174    174/6   29

2x+1    (2)29+1     59o

Step-by-step explanation:

Abby walked miles on Monday, miles on Tuesday, and miles on Wednesday. What is the total distance Abby walked in the three days?
a. miles
b. miles
c. miles
d. miles

Answers

Answer:WE Cant se the numbers

Step-by-step explanation:the ancwer would be 7 and 7/12

helppppppppppppppppppppp

Answers

Answer:
1.796

Explanation:
log base 6 of 25 can be rewritten as:
log base 6 of (5^2) = 2 * log base 6 of 5 
                               = 2 *0.8982
                               = 1.7965

Hope this helps :)

2, 4, 6, 8, 10
I know this diverges but what is the limit?

Also, is there a limit with numbers that repeat? (ie: -1,1,-1,1...(-1)^n)

Answers

1. You are right, this sequence diverges (or converges to infinity) so

[tex]$\lim_{n\to\infty}\,2n=\infty[/tex]

2. In this case limit does not exist.

Find the product of (x + 5)(x − 5). (1 point)


x2 − 10x + 25

x2 + 10x + 25

x2 − 25

x2 + 25

Answers

FOIL (first outside inside last)

x^2-5x+5x-25 = x^2-25
The answer is x2- 25 hope this helps!

Can someone please help me solve for x and y? Thank you

Answers

Answer: 
Choice D) x*y = -10

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

Explanation:

Multiply both sides of the first equation by 10 to clear out the fractions (10 is the LCD)
3x/5 + y/2 = 13/10
10*(3x/5 + y/2) = 10*(13/10)
6x + 5y = 13

Multiply both sides of the second equation by 100 to get each decimal value to turn into a whole number (move the decimal point over 2 spots to the right)
0.5y + 0.04x = 2.42
50y + 4x = 242
4x + 50y = 242

So we have this new system of equations which is equivalent to the original system
6x + 5y = 13
4x + 50y = 242

Multiply both sides of the top equation by 10 so that the 5y turns into 50y
6x + 5y = 13
10*(6x + 5y) = 10*13
60x + 50y = 130

Now we have this system of equations
60x + 50y = 130
4x + 50y = 242

If we subtract straight down then we have
60x-4x = 56x
50y-50y = 0y = 0 ... notice how the y terms go away effectively
130-242 = -112

The y terms go away leaving us with this simplified equation
56x = -112
Which solves to
x = -2
when we divide both sides by 56

Now use that x value to find y
6x + 5y = 13
6(-2) + 5y = 13 ... replace x with -2
-12 + 5y = 13
-12+5y+12 = 13+12 ... adding 12 to both sides
5y = 25
5y/5 = 25/5 .... dividing both sides by 5
y = 5

In summary we have x = -2 and y = 5. Therefore, x*y = -2*5 = -10 is the answer

which are the solutions of the quadratic equation x^2=9x+6

Answers

You can use the quadratic equation to solve this once you have this set equal to zero. The answers would be roughly 9.6 and -0.6. 

The solutions of the quadratic equation [tex]\(x^2 = 9x + 6\)[/tex]are:

[tex]\[x = \frac{9 + \sqrt{105}}{2}\][/tex] and [tex]\[x = \frac{9 - \sqrt{105}}{2}\][/tex]

To find the solutions of the quadratic equation [tex]\(x^2 = 9x + 6\)[/tex], we need to rewrite it in standard quadratic form [tex]\(ax^2 + bx + c = 0\).[/tex]

Given:

[tex]\[x^2 = 9x + 6\][/tex]

Subtract [tex]\(9x\) and \(6\)[/tex] from both sides to get it in standard form:

[tex]\[x^2 - 9x - 6 = 0\][/tex]

Now, to solve this quadratic equation, we can factor it or use the quadratic formula:

The quadratic formula is:

[tex]\[x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}\][/tex]

For our equation:

[tex]\[a = 1, b = -9, \text{ and } c = -6\][/tex]

Substituting these values into the quadratic formula:

[tex]\[x = \frac{-(-9) \pm \sqrt{(-9)^2-4(1)(-6)}}{2(1)}\]\[x = \frac{9 \pm \sqrt{81+24}}{2}\]\[x = \frac{9 \pm \sqrt{105}}{2}\][/tex]

So, the solutions of the quadratic equation [tex]\(x^2 = 9x + 6\)[/tex]are:

[tex]\[x = \frac{9 + \sqrt{105}}{2}\][/tex] and [tex]\[x = \frac{9 - \sqrt{105}}{2}\][/tex]

The area of a right triangle with one leg measuring 5ft and hypotenuse measuring 13ft is

A 30ft to the 2
B 37.5 ft to the 2
C 65ft to the 2

Answers

Calculating the other leg:
other leg^2 = 13^2 - 5^2
other leg^2 = 169 -25
other leg^2 = 144
other leg = 12

Area = .5 * 12 *5
Area = 30 sq feet
answer is A


PLZ HELP ME ON THIS

PLZ EXPLAIN IT TO ME

Answers

I think it might be the first one 400(1.04) it can't be the last cause 80(1.04) + 5 is basically like the third one 85(1.04).
80 * 5 = 400 
Hope it helps

Carbon-14 has a half-life of 5,730 years. If the age of an object older than 50,000 years cannot be determined by radiocarbon dating, then

* carbon-14 levels in a sample are undetectable after approximately ten half-lives.
* carbon-14 levels in a sample are undetectable after approximately nine half-lives.
* the half-life of carbon-14 is too long to accurately date the object.
* a radioisotope with a shorter half-life should be used to date the object.

Answers

* carbon-14 levels in a sample are undetectable after approximately nine half-lives.
Nine half-lives pf carbon 14 is 51,570 years.

Source:
https://en.wikipedia.org/wiki/Radiocarbon_dating


C-14 has a half-life of 5730 years. Let's figure out how many half lives would pass in 50,000 years. We take 50,000 and divide it by 5730 = 8.72 half-lives. This is fairly close to 9. The answer is B) C-14 levels in a sample are undetectable after approximately nine half-lives.

What is the missing value in the following arithmetic sequence?

Answers

3.8 - 2 = 1.8

so
5.6 + 1.8 = 7.4

missing is 7.4

answer is C. 7.4

Answer:

Step-by-step explanation:

Alright, lets get started.

The first term is 2 and the second term is 3.8.

It means the common difference is [tex]3.8-2 = 1.8[/tex]

So, adding common difference :

First term = 2

Second term = 3.8

Third term = [tex]3.8+1.8=5.6[/tex]

Fourth term = [tex]5.6+1.8 = 7.4[/tex]

So the answer is 7.4   :   answer

Hope it will help :)

Compare and Contrast: Below are two equations. Solve each equation and compare the two solutions. Choose the statement that is true about each solution. Equation #1 Equation #2 |2x - 4| = 5 |3x - 4| = -12 Equation #1 and Equation #2 have the same number of solutions. Equation #1 has more solutions than equation #2. Equation #1 has fewer solutions than equation #2. None of the statements above describe the number of solutions to equations shown.

Answers

Equation 1:

[tex]|2x-4|=5[/tex]

This means:

[tex]2x-4=5[/tex] and [tex]2x-4=-5[/tex]

Simplifying both the equations we get:

x = 4.5 and x = - 0.5

Equation 2:
[tex]|3x-4|=-12[/tex]

There is no solution to this equation, as the modulus or absolute value of any expression can never be negative

Therefore, we can conclude that Equation 1 has more number of solutions that Equation 2.

A freight carrier charges $0.57 for a package weighing up to one ounce plus and additional $0.32 for each additional ounce or fraction of an ounce. A company is shipping a package weighing 224 grams. What is the weight of the package in ounces?

Answers

There are approximately 8 ounces (7.901) in 224 grams. 

Answer:

its is 8 oz 224 grams is = to 7.901

Step-by-step explanation:


If the clock has a radius of 15 inches, how many inches of ribbon will terry need to use to surround the clock?

Answers

the circumference is C=2*3.14*r
r=15 inches
C=2*3.14*15=94.20 inches of ribbon 

Let g(x) = 2x and h(x) = x2 + 4. Evaluate (h ∘ g)(1). 2 8 10 4

Answers

Hello!

You can solve this by plugging 1 into [tex] g(x) [/tex] and plugging the result into [tex] h(x)[/tex].

[tex]g(x) = 2x[/tex]
[tex]g(1) = 2(1)[/tex]
[tex]g(1) = 2[/tex]

[tex]h(x) = 2x + 4[/tex]
[tex]h(g(1)) = 2(2) + 4[/tex]
[tex]h(g(1)) = 4 + 4[/tex]
[tex]h(g(1)) = 8[/tex]

Answer:
(h ∘ g)(1) = 8

12 ticket sellers, 25 cleaning persons, and 15 ushers employees will be paid $10, $7.50, 8.50 per hour for 50 hours per month what is the monthly salary

Answers

----------------------------------------------------------
Ticket Sellers
----------------------------------------------------------
1 ticket seller  = $10 x 50
1 ticket seller  = $500

12 ticket sellers = $500 x 12
12 ticket sellers = $6000

----------------------------------------------------------
Cleaning person
----------------------------------------------------------
1 cleaning person = $7.50 x 50 
1 cleaning person = $ 375

25 cleaning person = $375 x 25
25 cleaning person = $9375

----------------------------------------------------------
Ushers
----------------------------------------------------------
1 usher = $8.50 x 50
1 usher = $425

15 ushers = $425 x 15
15 ushers = $6375

----------------------------------------------------------
Total
----------------------------------------------------------
$6000 + $9375 + $6375 = $21750

----------------------------------------------------------
Answer: Total monthly salary per month = $21750
----------------------------------------------------------

If the function graphed is f(x), find f(1).
A) -4
B) -1/4

C) 0
D) 4

Answers

Answer: choice A) -4

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

Step 1) Draw a vertical line through 1 on the x axis

Step 2) Mark the point where the vertical line and the blue curve intersect (or cross each other)

Step 3) Draw a horizontal line through the point marked in step 2. Note how this horizontal line goes through -4 on the y axis. 

So the point (1,-4) is on the blue curve. This means if x = 1 is the input then y = -4 is the output. Recall that y = f(x). So f(x) = -4 is the output as well when the input is x = 1.

In short, this is why f(1) = -4

6.3% of 41 is?

a. 2.6
b. 6.5
c. 258.3
d. 650.8

Answers

(41/100)6.3= 2.583≈ 2.6
a✓
I think it's A 2.6 hope that helps

Joes is 10 years older than james. in 8 years joe will be three times older than james. how old are they now

Answers

Joes is 16 and James is 6!!

please help.
solve the inequality |6 - v| < 9

write the inequality as two inequalities with the absolute value and give a solution set.

Answers

-9 < 6 -v < 9 . . . . two inequalities
-15 < -v < 3 . . . . . subtract 6
-3 < v < 15 . . . . . . multiply by -1
Other Questions
From their office, Cathy drives due west while John drives south. When John is 7 mi from the office, the distance between them is 1 mi more than Cathys distance from the office. Find the distance between Cathy and John. CHAPTER IITHE SHE-WOLF, an excerptFrom White FangBy Jack LondonBreakfast eaten and the slim camp-outfit lashed to the sled, the men turned their backs on the cheery fire and launched out into the darkness. At once began to rise the cries that were fiercely sadcries that called through the darkness and cold to one another and answered back. Conversation ceased. Daylight came at nine o'clock. At midday the sky to the south warmed to rose-colour, and marked where the bulge of the earth intervened between the meridian sun and the northern world. But the rose-colour swiftly faded. The grey light of day that remained lasted until three o'clock, when it, too, faded, and the pall of the Arctic night descended upon the lone and silent land.As darkness came on, the hunting-cries to right and left and rear drew closerso close that more than once they sent surges of fear through the toiling dogs, throwing them into short-lived panics.At the conclusion of one such panic, when he and Henry had got the dogs back in the traces, Bill said:"I wisht they'd strike game somewheres, an' go away an' leave us alone.""They do get on the nerves horrible," Henry sympathized.They spoke no more until camp was made.What aspects of the developing story would you emphasize in a summary of this section of the text? Why would you emphasize them? Please respond in three to five complete sentences. The roosevelt corollary __________. select one:a. claimed the right of the united states to act as a police power in asiab. contradicted the monroe doctrinec. claimed the right of the united states to act as a police power in africad. claimed the right of the united states to act as a police power in the western hemisphere What is a "missing link" in the fossil record? A.) a fossil that shows a vestigial structure B.) a transitional fossil that shows how two species are connected C.) a fossil that is physically impossible and cannot exist D.) a fossil that contradicts the theory of evolution the temperature outside is -5F name the temperature that would make the sum of the two temperatures 0F Use the Law of Sines to find the missing angle of the triangle. Find measure of angle b given that c=83 , a=44 and that measure of angle a =31 . A=76.3 degrees B= 15.8 degrees C= 72.7 degrees, Is my answer correct? Why did Japan become an imperial power in the late nineteenth century? It needed colonies where it could sell its surplus goods. It wanted to create an empire so it could be like Western imperial powers. It required foreign workers in order to industrialize. It wanted to have more security, prestige, wealth, and power. Sally left a $12.24 tip that represented 17% of her bill. What was the original cost of the meal? ___ involves working with stakeholders to create the document that formally authorizes a project. What is true of public service? Imelda needs to convert 440 centimeters per minute to meters per hour. Which conversion factors should she use? _____ attempts to create an association between a response (e.g., buying a brand) and some outcome (e.g., satisfaction) that serves to reinforce the response. classical conditioning iconic rote conditioning vicarious conditioning modeled conditioning operant conditioning In at least 150 words, discuss the story of Orestes and Agamemnon. Explain the relevance of their story to that of Telemachus and Odysseus. what is the substance albino plants lack WILL MEDAL !!!!!!!!!!Read these lines from "The Raven."And the Raven, never flitting, still is sitting, still is sittingOn the pallid bust of Pallas just above my chamber door;In these lines, the repetition of the phrase "still is sitting" helps create what kind of mood?patiencehelplessnessboredomacceptance In the Neolithic era, how did stone tools change? As an adult and a parent of a 4-year-old child, camille has seen many children begin to cry when placed on the lap of the mall santa or easter bunny. when discussing this with her brother, luis, he reminds her of the time when she was 5 years old, that she began crying hysterically, ran from santa's lap, and was lost for nearly two hours. luis has made all of this up, but camille has a clear and distinct memory of the event he described. this demonstrates the role of __________ in producing false memories find the values of x and y Salt concentration would be an example of what type of factor in an ecosystem? A.food production B.abiotic C.biotic Which state governor proposed a more radical idea, the Share the Wealth plan?