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Murljashka [212]
3 years ago
11

Tamir gets paid $12 for every day he feeds and walks his neighbor's dog. Write an equation that would represent the relationship

between the amount of money Tamir gets paid and the number of days he takes care of the dog. Use f to represent the total amount of money and d to represent the number of days.
Mathematics
2 answers:
Nataliya [291]3 years ago
6 0
F=12d, since Tamir gets paid 12 dollars each day, he gets f amount of money. For example if he walks and feeds the dog for two d then he gets 24 dollars total, f
faltersainse [42]3 years ago
4 0
F = (12)(d)
This way he can multiply however many days he worked by 12 (how much he makes a day) to get the total amount of money earned
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The path of a projectile launched from a 26-ft-tall tower is modeled by the equation y = −16t2 + 64t + 26. What is the maximum h
BabaBlast [244]

Answer:

The maximum height of the projectile is 90 ft

Step-by-step explanation:

Here, we want to get the maximum height reached by the projectile

The answer here will be the y-coordinate value of the vertex form of the given equation

so firstly, we have to write the equation in the vertex form

We have this as;

y = -16t^2 + 64t + 26

That will be;

y = a(x-h)^2 + k

y = -16(x-2)^2 + 90

where the vertex of the equation is;

(-h,k)

K

in this case is 90 and thus, that is the maximum height of the projectile

8 0
3 years ago
Arrange the parabolas represented by the equations in increasing order with respect to the y-values of their directrixes.
Alexus [3.1K]
(x-h)^2=4P(y-k), vertex is (h,k)
P is distance from vertex to directix
remember to subtract P from the y value of the vertex (p-k) and that y value is the directix, y=p-k

nut
ok so one way is to just graph them on a graphing utility
remember if the graph opens up, then the directix is below that
or we can convert to 4P(y-k)=(x-h)^2 form where P is distance from directix

I will only convert the 1st one fully, you should be able to do the rest

1. y=-x^2+3x+8
multiply both sides by -1 since we don't like the x^2 term negative
-y=x^2-3x-8
add8 to both sides
-y+8=x^2-3x
take 1/2 of linear coeficient and square it and add to both sides
-3/2=-1.5
 (-1.5)^2=2.25
-y+10.25=x^2-3x+2.25
factor perfect square
-y+10.25=(x-1.5)^2
force undistribute -1 in left side
(-1)(y-10.25)=something, we don't care anymore for now
factor out a 4 in -1
4(-1/4)(y-10.25)

k=10.25
p=-1/4=-0.25
directix=k-p=10.25-(-0.25)=10.5
directix is y=10.5

basically completee the square with x and find P by force factoring a 4 out

2.  directix: y=-1.75

3. directix: y=1.5

4. directix: y=17.25

5. d: -37.5

6. d: 9.25

7. d=2.625

order them yourself

7 0
3 years ago
What is the value of x? Enter your answer in the box.
yan [13]

Answer:

Did you find the answer?

Step-by-step explanation:


3 0
3 years ago
Combine the like terms to make a simpler expression -k - (-8k)
bekas [8.4K]
<span> -k - (-8k) = -k + 8k = 7k</span>
7 0
3 years ago
Read 2 more answers
the five members of the traynor family each buy train tickets during the train ride each family member buys a box one for $6.50
NeX [460]

Answer:

  $43.20

Step-by-step explanation:

If each family member buys one ticket and one lunch, then for ticket price t we have the total expenditure as ...

  5(t +6.50) = 248.50

  t +6.50 = 49.70 . . . . . divide by 5

  t = 43.20 . . . . . . . . . . subtract 6.50

The price of each train ticket is $43.20.

8 0
3 years ago
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