2 years ago

Please solve find perimeter

Mathematics

1 answer:

babunello [35]2 years ago

5 0

Answer:

12???

Step-by-step explanation:

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Students water a plant with the same amount of water for 28 days, if the students use a total of 23.8 L of water over the 28 day

DENIUS [597]

23.8÷28=0.85
0.85 Liters

every liter is 1000 mililiters.
0.85 Liters is 850 mililiters.

7 0

3 years ago

Which expression is equivalent to -6(5+2x)?

aev [14]

Answer:

Step-by-step explanation:

3 0

3 years ago

Scores on a college entrance examination are normally distributed with a mean of 500 and a standard deviation of 100. What perce

Alla [95]

Answer:

The percentage is $P(350 < X 650 ) = 86.6\%$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 500$

The standard deviation is $\sigma = 100$

The percent of people who write this exam obtain scores between 350 and 650

$P(350 < X 650 ) = P(\frac{ 350 - 500}{ 100}$

Generally

$\frac{X - \mu }{\sigma } = Z (The \ standardized \ value \ of \ X )$

$P(350 < X 650 ) = P(\frac{ 350 - 500}{ 100}$

$P(350 < X 650 ) = P(-1.5$

$P(350 < X 650 ) = P(Z < 1.5) - P(Z < -1.5)$

From the z-table $P(Z < -1.5 ) = 0.066807$

and $P(Z < 1.5 ) = 0.93319$

=> $P(350 < X 650 ) = 0.93319 - 0.066807$

=> $P(350 < X 650 ) = 0.866$

Therefore the percentage is $P(350 < X 650 ) = 86.6\%$

3 0

3 years ago

Select the correct answer.

ad-work [718]

Answer:

A' (-1, 2)

Step-by-step explanation:

(x, y) -> (-y, x)

A' (-1, 2)

B' (1, -2)

C' (2, -2)

D' (0, -2)

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3 years ago

What is 3.4 in fraction

Anna [14]

$\rm 3,4= \frac{34}{10}\\\\We\ can\ simplify\ this\ fraction:\\\\\ \frac{34\div2}{10\div2}=\boxed{ \frac{17}{5} }$

$So,\ \boxed{3.4=\boxed{\frac{17}{5} }}$

8 0

3 years ago