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azamat
3 years ago
9

Plz help me I need help

Mathematics
2 answers:
tigry1 [53]3 years ago
7 0
30 cups because you just needed to double the pints
Ksju [112]3 years ago
5 0
15 pints = 30 cups
:)
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Please help me it's urgent!
Crank

Answer:

y = 2x-5

y=-x+4

Step-by-step explanation:

Just need to solve the:

x+y=4

y-2x=-5

And we have:

x=3

y=1

Then replace x and y into the answer to find the correct one

7 0
3 years ago
The position function of a particle in rectilinear motion is given by s(t) = 2t^3 + 21t^2 + 60t + 3 for t ≥ 0 with t measured in
natta225 [31]
As the fellow above said, the particle does make a U-turn at the vertex, and we can find that out by getting the derivative of s(t) and zeroing it out to get the point of the horizontal tangent.

Bearing in mind that ds/dt is really v(t) or the velocity equation, so when we zero out the ds/dt, is the same as saying the velocity went to 0, since it got zeroed out, and then the particle goes over the vertex and changes direction.

\bf s(t)=2t^3-21t^2+60t+3\implies \boxed{\cfrac{ds}{dt}=6t^2-42t+60}\leftarrow v(t)
\\\\\\
0=6t^2-42t+60\implies 0=t^2-7t+10\implies 0=(t-5)(t-2)
\\\\\\
t=
\begin{cases}
5\\
2
\end{cases}\impliedby \textit{it makes the first turn at the \underline{2 second}}
\\\\\\
\textit{now let's find the acceleration equation, a(t)}
\\\\\\
\boxed{\cfrac{d^2s}{dt^2}=12t-42}\leftarrow a(t)\\\\
-------------------------------\\\\
s(2)=55\qquad \qquad \qquad \qquad a(2)=-18

the negative acceleration value, simply means a decreasing rate of change, so, it means the particle is slowing down and possibly coming to a stop before changing direction again.
8 0
3 years ago
ELPP PLS I SUCK AT MATHH D:
Korvikt [17]

Answer:

If you were really that bad at math make it more than 6+ points lmoa and the answer is 1

Step-by-step explanation:

7 0
3 years ago
you need four new pillows. you decide to buy neither the least expensive nor the most expensive. how much will your pillows cost
adoni [48]
Since we neither want most expensive nor least expensive, we need to go with pillow which is costing $18.49.

So total 4 pillows cost = 4*18.49
= $73.96
3 0
3 years ago
Read 2 more answers
Is a shirt is on sale for a 20% discount what would be the price of an $18 shirt
babunello [35]

Answer:

iS 18 THE Price AFTER Discount

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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