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3 years ago

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Two schools start with 1000 students. The first school's enrollment increase 20% in 2012 and then decreases 20% in 2013; the sec

ond school's enrollment stays constant in both 2012 and 2013. Which school has the most students now?

1 answer:

Solnce55 [7]3 years ago

4 0

Answer:

Step-by-step explanation:21

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Which is farthest 3.345, 3.35, or 3.3 meters

steposvetlana [31]

Shortest is 3.3 meters
Middle is <span>3.345 meters
Longest is 3.35 meters

Good Luck :D</span>

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3 years ago

A new car is purchased for 17600 dollars. The value of the car depreciates at 11.75% per year. What will the value of the car be

Liula [17]

Answer:

The answer would be 4,450

Step-by-step explanation:

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2 years ago

A ball with mass m kg is thrown upward with initial velocity 28 m/s from the roof of a building 17 m high. Neglect air resistanc

Nutka1998 [239]

a. At its maximum height, the ball has zero vertical velocity, so

$-\left(28\dfrac{\rm m}{\rm s}\right)^2=2(-g)(y_{\rm max}-17\,\mathrm m)$

$\implies y_{\rm max}=57\,\mathrm m$

b. The ball's height in the air $y$ at time $t$ is given according to

$y=17\,\mathrm m+\left(28\dfrac{\rm m}{\rm s}\right)t-\dfrac g2t^2$

Solve for $t$ when $y=0$ :

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3 0

3 years ago

Factorise the expression: am^2 + bm^2 + bn^2+an^2

Pani-rosa [81]

Answer:

( a+b) ( m^2 + n^2)

Step-by-step explanation:

factorise like terms

m^2 ( a + b ) + n^2 ( m^2 + n^2)

then put like terms together put remaining terms in a bracket

( a + b) ( m^2 + n^2 )

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2 years ago

You need a 75 % alcohol solution. On hand, you have a 260 mL of a 30% alcohol mixture. You also have 95 % alcohol mixture . How

user100 [1]

$30 \: percent \: alcohol \: in \: 260 \: ml \\ alcohol = 0.3 \times 26 0= 78 \: ml$

$c( \gamma ) = \frac{78 + 0.95\gamma }{260 + \gamma } \times 100$

$c( \gamma ) = 75$

$\frac{78 + 0.95\gamma }{260 + \gamma } = 0.75$

$78 + 0.95\gamma = 0.75 \gamma + 195 \\ 0.2 \gamma = 117 \\ \gamma = 585$

$we \: need \: 585 \: ml \: of \: 95% \: alcohol$

6 0

1 year ago

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