2 years ago

( p^2 - 8p^4 - 11p^3 ) + ( 4p^2 + 7p^4 )

Mathematics

1 answer:

Alenkasestr [34]2 years ago

7 0

Hold up ion even understand this

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Y=5x+3 which orderd pair works for the rule A. (4,23) B. (3,14) C. (5,3)

gtnhenbr [62]

Y = 5x + 3
when x = 4
y = 5(4) + 3 = 23

Answer (4,23)

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2 years ago

How many liters each of a 25% acid solution and a 50% acid solution must be used to produce 80 liters of a 40% acid solution?

alina1380 [7]

Answer:

32 and 48 liters

Step-by-step explanation:

Let 25% solution is x liters, then 50% solution is (80 - x) liters.

Acid content is going to be same:

0.25x + 0.5(80 - x) = 80*0.4
0.25x - 0.5x + 40 = 32
0.25x = 8
x = 8/0.25
x = 32 liters

So 32 liters of 25% solution and 80 - 32 = 48 liters of 50% solution

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2 years ago

In both of the problems where would you put parentheses to make it statement true?

Darina [25.2K]

In the first one it would be (21-8)-6=7.
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2 years ago

1. The position of a particle moving along a coordinate axis is given by: s(t) = t^2 - 5t + 1. a) Find the speed of the particle

zimovet [89]

Answer: $\left | 2t-5\right |,\ 2,\ 2t-5$

Step-by-step explanation:

Given

Position of the particle moving along the coordinate axis is given by

$s(t)=t^2-5t+1$

Speed of the particle is given by

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=\left | 2t-5\right |$

Acceleration of the particle is

$\Rightarrow a=\dfrac{dv}{dt}\\\\\Rightarrow a=2$

velocity can be negative, but speed cannot

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=2t-5$

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2 years ago

For each graph below, state whether it represents a function.

valina [46]

Graph 1 and 3 are the only functions

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2 years ago

( p^2 - 8p^4 - 11p^3 ) + ( 4p^2 + 7p^4 )​

( p^2 - 8p^4 - 11p^3 ) + ( 4p^2 + 7p^4 )