NO LINKS!!!!!

1. When a ball was kicked off the ground it landed 20 feet horizontally and reached a maximum height of 6 feet. Create a sketch of the ball's flight and find an equation that describes it.

2. Find the equation of a square foot function with a vertex at (-5, 4) and that passes through the (20, 29).

3. Write the following in graphing form: y = x^2 - 18x + 5

Equation:
Vertex:
x-intercepts:
y-int?

Answers

Answer 1

9514 1404 393

Answer:

y = 0.06x(20 -x)y = 5√(x+5) +4y = (x -9)^2 -76; (9, -76); 9±√76; 5

Step-by-step explanation:

1.

If we assume the ball was kicked from the origin and that it follows a parabolic curve, the equation can be written ...

  y = -kx(x -20)

for some value of k that makes the maximum be 6. The maximum will occur at the value of x that is halfway between the points where the ball is on the ground, so at x=10. Then our value of k is such that ...

  6 = k(10)(20 -10) = 100k

  k = 6/100 = 0.06

The equation describing the ball's flight is ...

  y = 0.06x(20 -x)

A graph is attached.

__

2.

The translated square root function will have a vertical multiplier k that will make it pass through the given point. The parent function f(x) = √x can be translated so its vertex moves from (0, 0) to (-5, 4) by ...

  g(x) = 4 +f(x+5)

Applying the scale factor k gives ...

  g(x) = k·√(x +5) +4

We want g(20) = 29, so ...

  29 = k·√(20 +5) +4

  25 = 5k . . . . subtract 4

  5 = k . . . . . . divide by 5

The equation of the function is ...

  y = 5√(x +5) +4

__

3.

We assume your "graphing form" is "vertex form", as that form is generally conducive to graphing.

We can complete the square by adding and subtracting the square of half the x-coefficient:

  y = x^2 -18x +9^2 +5 -9^2

  y = (x -9)^2 -76 . . . . . equation

  vertex: (9, -76)

  x-intercepts: 9±√76 ≈ {0.2822, 17.1778}

  y-intercept: 5 . . . . (the constant in the given equation)

_____

Additional comment

When the quadratic is written in vertex form ...

  y = a(x -h)^2 +k

the x-intercepts are h±√(-k/a).

NO LINKS!!!!!1. When A Ball Was Kicked Off The Ground It Landed 20 Feet Horizontally And Reached A Maximum
NO LINKS!!!!!1. When A Ball Was Kicked Off The Ground It Landed 20 Feet Horizontally And Reached A Maximum

Related Questions

Juanita has saved 10% of the money that she needs to buy a new bicycle.

If she has saved $22, how much money does the bicycle cost?

Answers

21.9 cents good luck

How to find the GCF 2x-4y+6z

Answers

Answer:

inding the Greatest Common Factor (GCF): To find the GCF of two expressions:

Factor each coefficient into primes. Write all variables with exponents in expanded form.

List all factors—matching common factors in a column. ...

Bring down the common factors that all expressions share.

Multiply the factors

Answer:

Step-by-step explanation:

2x = 2*x

4y = 2 *2 *y

6z = 2* 3 * z

GCF = 2

GCF is the greatest common factor. Here 2 is common factor

2x - 4y + 6z = 2*(x - 2y + 3z)

Solve the equation 6m + 10n = 12 for m.
-IO

Answers

Answer:

N=7.2

Step-by-step explanation:

6x-10= -60

10x7.2= 72

72+-60=12

So N=7.2

Write the equation of the line passing through the points (-7, 5) and (7, 1)

Answers

Answer:

y = -2/7(x) + 3

Step-by-step explanation:

The equation of a line can be stated as y = mx + b, where m is the slope and b is the y-intercept (the value of the function when x = 0).  To find the equation of the line, we'll start by finding the slope.

The slope can be expressed as [tex]\frac{y_{2} - y_{1}}{x_{2}-{x_1}}[/tex]

Substituting in our coordinates, we have:

[tex]m = \frac{1 - 5}{7 - (-7)} = \frac{-4}{7 + 7} = \frac{-4}{14}[/tex], which can be simplified to [tex]-\frac{2}{7}[/tex]

Plugging that back into our equation, we have y = [tex]-\frac{2}{7}[/tex]x + b

Now, to find b, we substitute in one of our sets of coordinates.  Let's use (-7, 5)

x = -7 and y = 5, which gives us:

[tex]5 = -\frac{2}{7} (-7) + b[/tex]

[tex]-\frac{2}{7} (-7) = 2[/tex], which gives us:

5 = 2 + b

Subtracting 2 from both sides, we get:

3 = b

Plugging that back into our equation, we have [tex]y = -\frac{2}{7} x + 3[/tex]

Identify the factors of the following numbers 1. 40- 2. 54- 3 63 - 4.70 - 6. 85 -​

Answers

5.67 min then i’ll please reply please follow up the channel link or channel link 6.79

Does this graph represent a function? Why or why not?

Answers

Answer:

yes

Step-by-step explanation:

you can use the vertical line test

Which of the following fraction below is an IMPROPER FRACTION?
a. 1/3
b. 16/5
c. 2/3
d. 4/27 ​

Answers

16/5 would be the improper fraction
B. 16/5

Because 16/5 is an improper factor since the numerator 16 is bigger than the denominator 5

Does anyone know this?
Answers:
A. b=4/3, c=12
B. b=4/3, c=2/3
C. b=8/3, c=16/3
D. b=8/3, c=16

Answers

Answer:

the answer will be choice D

as we can see that the triangle have angles measuring 30 60 and 90 so we will use the 30-60-90 rule

you can look up the explantion about the rule online

Identify the focus, directrix, an axis of symmetry of (f)x=1/16^2

Answers

Answer:

Focus is (0,64)

Step-by-step explanation:

Directrix is y = -64

Axis of Symmetry is x = 0

If it takes 2.5 gallons of milk to make 2 pounds of cheese. How many pounds of cheese can John make with 50 gallons of milk?

Answers

Answer:

21 pounds

tell me if it helped :P

Step-by-step explanation:

What is 5/8÷1 and 1/3

Answers

let's firstly convert the mixed fractions to improper fractions and then divide.

[tex]\stackrel{mixed}{1\frac{1}{3}}\implies \cfrac{1\cdot 3+1}{3}\implies \stackrel{improper}{\cfrac{4}{3}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{5}{8}\div 1\frac{1}{3}\implies \cfrac{5}{8}\div \cfrac{4}{3}\implies \cfrac{5}{8}\cdot \cfrac{3}{4}\implies \cfrac{15}{32}[/tex]

Help this is due today!!!!!!!

Answers

The answer I believe is 5 because 2 vases hold 10 red roses and 5 yellow roses. But since the person has 3 vases but it has to be the same amount as the first person. They would both have 30 flowers in their vases. But then each of the vases has 6 red roses so you just do 30 divided by 6 and you get 5.

A swimming club is conducting a vote to choose a mascot. There are 164 club members who want a dolphin for their mascot. These members represent 82% of the total number of club members. How many club members are there?
Group of answer choices

134

200

136

2,000

Answers

Step-by-step explanation:

82÷100= 0.82

0.82×164= 134.48 /134

2x² - x + 6 is subtracted from x² + 3x - 2, the result is ​

Answers

Answer:

-x² + 4x - 8

Step-by-step explanation:

Given: 2x² - x + 6 is subtracted from x² + 3x - 2

Rewriting: (x² + 3x - 2) - (2x² - x + 6)

Distrubte negative: x² + 3x - 2 - 2x² + x - 6

Combine like terms:  -x² + 4x - 8

Answer: -x² + 4x - 8

Hope this helps, have a nice day :D

HELP I NEED HELP ON THIS QUESTION ITS TIMED

Answers

Answer:

The answer is A

Step-by-step explanation:

When you reflect something over the x-axis all of the negative y coordinates become positive.

(d). Use an appropriate technique to find the derivative of the following functions:

(i) y = √4+3x²/ (x² +1)¹/³ . Pie^x

(ii) xy^3/1+ sec y= e^xy

[Verify your answer by MATHEMATICA and attach the printout of the commands and output]

Answers

(i) I would first suggest writing this function as a product of the functions,

[tex]\displaystyle y = fgh = (4+3x^2)^{1/2} (x^2+1)^{-1/3} \pi^x[/tex]

then apply the product rule. Hopefully it's clear which function each of f, g, and h refer to.

We then have, using the power and chain rules,

[tex]\displaystyle \frac{df}{dx} = \frac12 (4+3x^2)^{-1/2} \cdot 6x = \frac{3x}{(4+3x^2)^{1/2}}[/tex]

[tex]\displaystyle \frac{dg}{dx} = -\frac13 (x^2+1)^{-4/3} \cdot 2x = -\frac{2x}{3(x^2+1)^{4/3}}[/tex]

For the third function, we first rewrite in terms of the logarithmic and the exponential functions,

[tex]h = \pi^x = e^{\ln(\pi^x)} = e^{\ln(\pi)x}[/tex]

Then by the chain rule,

[tex]\displaystyle \frac{dh}{dx} = e^{\ln(\pi)x} \cdot \ln(\pi) = \ln(\pi) \pi^x[/tex]

By the product rule, we have

[tex]\displaystyle \frac{dy}{dx} = \frac{df}{dx}gh + f\frac{dg}{dx}h + fg\frac{dh}{dx}[/tex]

[tex]\displaystyle \frac{dy}{dx} = \frac{3x}{(4+3x^2)^{1/2}} (x^2+1)^{-1/3} \pi^x - (4+3x^2)^{1/2} \frac{2x}{3(x^2+1)^{4/3}} \pi^x + (4+3x^2)^{1/2} (x^2+1)^{-1/3} \ln(\pi) \pi^x[/tex]

[tex]\displaystyle \frac{dy}{dx} = \frac{3x}{(4+3x^2)^{1/2}} \frac{1}{(x^2+1)^{1/3}} \pi^x - (4+3x^2)^{1/2} \frac{2x}{3(x^2+1)^{4/3}} \pi^x + (4+3x^2)^{1/2} \frac{1}{ (x^2+1)^{1/3}} \ln(\pi) \pi^x[/tex]

[tex]\displaystyle \frac{dy}{dx} = \boxed{\frac{\pi^x}{(4+3x^2)^{1/2} (x^2+1)^{1/3}} \left( 3x - \frac{2x(4+3x^2)}{3(x^2+1)} + (4+3x^2)\ln(\pi)\right)}[/tex]

You could simplify this further if you like.

In Mathematica, you can confirm this by running

D[(4+3x^2)^(1/2) (x^2+1)^(-1/3) Pi^x, x]

The immediate result likely won't match up with what we found earlier, so you could try getting a result that more closely resembles it by following up with Simplify or FullSimplify, as in

FullSimplify[%]

(% refers to the last output)

If it still doesn't match, you can try running

Reduce[<our result> == %, {}]

and if our answer is indeed correct, this will return True. (I don't have access to M at the moment, so I can't check for myself.)

(ii) Given

[tex]\displaystyle \frac{xy^3}{1+\sec(y)} = e^{xy}[/tex]

differentiating both sides with respect to x by the quotient and chain rules, taking y = y(x), gives

[tex]\displaystyle \frac{(1+\sec(y))\left(y^3+3xy^2 \frac{dy}{dx}\right) - xy^3\sec(y)\tan(y) \frac{dy}{dx}}{(1+\sec(y))^2} = e^{xy} \left(y + x\frac{dy}{dx}\right)[/tex]

[tex]\displaystyle \frac{y^3(1+\sec(y)) + 3xy^2(1+\sec(y)) \frac{dy}{dx} - xy^3\sec(y)\tan(y) \frac{dy}{dx}}{(1+\sec(y))^2} = ye^{xy} + xe^{xy}\frac{dy}{dx}[/tex]

[tex]\displaystyle \frac{y^3}{1+\sec(y)} + \frac{3xy^2}{1+\sec(y)} \frac{dy}{dx} - \frac{xy^3\sec(y)\tan(y)}{(1+\sec(y))^2} \frac{dy}{dx} = ye^{xy} + xe^{xy}\frac{dy}{dx}[/tex]

[tex]\displaystyle \left(\frac{3xy^2}{1+\sec(y)} - \frac{xy^3\sec(y)\tan(y)}{(1+\sec(y))^2} - xe^{xy}\right) \frac{dy}{dx}= ye^{xy} - \frac{y^3}{1+\sec(y)}[/tex]

[tex]\displaystyle \frac{dy}{dx}= \frac{ye^{xy} - \frac{y^3}{1+\sec(y)}}{\frac{3xy^2}{1+\sec(y)} - \frac{xy^3\sec(y)\tan(y)}{(1+\sec(y))^2} - xe^{xy}}[/tex]

which could be simplified further if you wish.

In M, off the top of my head I would suggest verifying this solution by

Solve[D[x*y[x]^3/(1 + Sec[y[x]]) == E^(x*y[x]), x], y'[x]]

but I'm not entirely sure that will work. If you're using version 12 or older (you can check by running $Version), you can use a ResourceFunction,

ResourceFunction["ImplicitD"][<our equation>, x]

but I'm not completely confident that I have the right syntax, so you might want to consult the documentation.

Suppose a poll is taken that shows that 530 out of 1000 randomly selected, independent people believe the rich should pay more taxes than they do. Test the hypothesis that a majority
(more than 50%) believe the rich should pay more taxes than they do. Use a significance level of 0.06.
State the null and alternative hypotheses.

Answers

An alternative hypothesis would be that

someone please help me due in an hour

Answers

Answer:

9 players rushed 20 or more yards this season

Step-by-step explanation:

Which logarithmic equation is equivalent to the exponential equation below?

e^4x = 5

Answers

Step-by-step explanation:

e^4x = 5

x = 1/4 × ln(5)

x ÷ 1/4 = ln(5)

x.4 = ln(5)

4x = ln(5)

ln(5) = 4x

Option → D

I need help with this one and don't understand what it is trying to say!

Answers

Answer:

A

Step-by-step explanation:

Each colored box cost 0.01

Answer:

A

Step-by-step explanation:

Each colored box cost 0.01

please help me thank you

Answers

Answer:

3

Step-by-step explanation:

The slope is 3. It's the correct answer.

Slope of 4/5 on line graph

Answers

Answer:

0

Step-by-step explanation:

Because it is a line parallel to x-axis.

3.
Which of the following is the graph of y = 5x2 + 2?

Answers

Answer:

Graph A

Step-by-step explanation:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex:  ( 0 ,  2 )

Focus:  

( 0 ,  41 /20 )

Axis of Symmetry:  x = 0

Directrix:  y = 39 /20

x                   y

− 2                22

− 1                 7

0                  2

1                    7

2                  22

Which of the following expressions are equivalent?

Answers

Answer:

all of the expressions are equivalent

Step-by-step explanation:

if you simplify each expression, you get the same answer for all of them

There were 5 7/10 of water in a bucket. Mollie spilled some of the water. Then she added an additional 1 5/10 liters of water to the bucket. After that, there was 6 4/10 liters of water in the bucket. How much did Mollie spill?

Answers

Answer:

8/10

Step-by-step explanation:

57/10 add 15/10=72/1072/10 subtract 64/10=8/10

Marcus works at a clothing store and gets an employee discount. The price
he pays can be modeled by the function d(c) = C -0.10c, where c is the original price
of the item. Find d(32) and describe what this means in the context of the problem.
(please answer i need asap)

Answers

9514 1404 393

Answer:

  d(32) = 28.80

  the price Marcus pays on an item with an original price of 32

Step-by-step explanation:

  d(32) = 32 -0.1(32)

  d(32) = 28.8

The problem statement tells you d(32) is the price Marcus pays when the original price is 32.

perpendicular to 8x - 2y = 5.

Answers

Step-by-step explanation:

First consider the given line 8x = 2y - 5. This can be rewritten as

 

2y = 8x + 5

 

y = (8x + 5)/2 = 4x + 2.5

 

The line is y = 4x + 2.5. This is of the form y = mx + b.

 

On comparing, we see that the slope of the given line is m = 4

 

Now, we require to find the slope of a line perpendicular to this. Let its slope be m'.

 

We know that for two lines to be perpendicular, the product of the slopes = -1

 

So, m * m' = -1

 

4 * m' = -1

 

m' = -1/4

 

Answer: Slope of the perpendicular line is -1/4.

 

Bob needs 496 inches of border to put around his kitchen walls. if each roll contains 10 ft of border, how many rolls will Bob need?​

Answers

We can convert the ft into inches by multiplying it by 12. So each roll is 120 inches. 496 divided by 120 is 4.1333… no matter what you will round up if you have any numbers after the decimal point. He will need 5 rolls to put a border around his kitchen walls.

In one jar, I have two balls labelled 1 and 2 respectively. In a second jar, I have three balls labelled 0, 1 and 2 respectively. I draw one ball from each jar, multiply the numbers on the two balls together, and then calculate three to the power of that product, e.g. if I draw 1 and 2, I calculate 3^2=9. Let’s call this number X. What is the probability that the number 1,024 is an exact multiple of X?

Answers

Step-by-step explanation:

this is a kind of trick question, actually.

with whatever we draw, we produce X values as power of 3.

to be precise, we can have only

3⁰ = 1

3¹ = 3

3² = 9

3⁴ = 81

due to the possible combinations of drawn numbers (e.g. 3 cannot be created by a multiplication of 0s, 1s and 2s).

so, mostly, these results cannot be exact factors of 1024.

1024 cannot be divided by 3, nor by 9 nor by 81.

but 1024 is a multiple of 1 (as is every number).

so, we are looking at the probability to get 0 as multiplication result of the numbers on the 2 drawn balls.

the only possibilities are

1 and 0

2 and 0

out of in total 6 (2×3) different outcomes

1 and 0

1 and 1

1 and 2

2 and 0

2 and 1

2 and 2

the probability of this "0" event is again

number of desired outcomes / number of possible outcomes = 2/6 = 1/3

y<_ - 1/2 + 4
y> - x

Answers

Answer:

1.4.5

2.idont know the answer for that question because I am grade 6

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