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MAXImum [283]
4 years ago
11

The cost of parking a car in an hourly lot can be represented by the following equation y = 3x + 2 What does the 3 tell you abou

t the cost of parking?
A) The hourly rate is $3

B) You can only park for 3 hours

C) There is a $3 fee to park

D) it costs 5 dollars to park all day​
Mathematics
2 answers:
Snezhnost [94]4 years ago
7 0
It’s A ... sorry if I’m wrong
Setler79 [48]4 years ago
4 0

Answer:

A

Step-by-step explanation:

The three represents the amount it costs for each hour parked, and is continuous, which is a rate.

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A rocket is fired upward from some initial distance above the ground. Its height in​ feet, h,above the​ ground, t seconds after
kirill115 [55]
Check the picture below.

\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lccclll}
h(t) = &{{ -16}}t^2&{{ +96}}t&{{ +2560}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)

so.. the maximum point is at   \bf {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}~~~ft

and it happened after   \bf -\cfrac{{{ b}}}{2{{ a}}}~~~seconds

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

now, when the rocket reaches the ground, as you saw on the picture, y = 0, thus

\bf h(t)=-16t^2+96t+2560\implies 0=-16t^2+96t+2560
\\\\\\
0=-16(t^2-6t-160)\implies 0=t^2-6t-160
\\\\\\
0=(t-16)(t+10)\implies t=
\begin{cases}
\boxed{16}\\
-10
\end{cases}

"t" is an amount in seconds, for this specific phenomena, it cannot be negative, so -10 is not a feasible value.

8 0
3 years ago
Read 2 more answers
Simplify to create an equivalent expression6(7-3y)+6(y+1)
RideAnS [48]

Answer:

48-12y

Step-by-step explanation:

6(7-3y) + 6(y+1)

distribute the 6 on both parentheses

42-18y+6y+6

combine like terms

42-12y+6

combine like terms again

48-12y

5 0
3 years ago
Can someone fill in the boxes please!
Hunter-Best [27]

Answer:

-28 for the  first box and for the second box it is -4

Step-by-step explanation:

6 0
3 years ago
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Which number line correctly shows –0.8 + 0.6?
lutik1710 [3]

Answer:

mc004-1 switches

Step-by-step explanation:

7 0
4 years ago
Lilly has $35,she went to the store and spender 10% of it,how much money she has left?
kirill115 [55]
Hi there! Lily has $31.50 left.

To find our answer we first need to know the amount of money Lily spend.
10\% \times 35 = 0.1 \times 35 = 3.50

Therefore, Lily spend $3.50. Now we subtract this amount of money from the amount she initially owned.


35 - 3.50 = 31.50
Hence, Lily has $31.50 left.
7 0
3 years ago
Read 2 more answers
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