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3 years ago

A rectangle sand box has a length of 5 1/3 feet and a width of 3 3/4 feet. What is the perimeter?

Mathematics

1 answer:

Jlenok [28]3 years ago

7 0

Answer:

The perimeter is 18 1/6 feet

Step-by-step explanation:

5ft and 4 in + 3ft and 9in

9ft and 1 in or 9 1/12 ft

multiply that by 2 for the other sides

18 1/6 feet

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Which equation has a zero slope and y-intercept of -2?

slava [35]

Answer:

It is D

Step-by-step explanation:

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3 years ago

Drag the tiles to the boxes to form correct pairs. Match each mixed number to its equivalent decimal number.

zysi [14]

Answer:

20 3/4 is to 20.75

20 1/5 is to 20.2

20 7/8 is to 20.875

and 20 4/5 is to 20.8

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3 years ago

Pense un numero lo multiplique por 7 al resultado le sume 4 obtube 32

irina [24]

7x+4=32
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Creo que así se ase

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3 years ago

An ice tray holds 12 ice cubes. If the total volume of the ice in the

AVprozaik [17]

Answer:

the cubes are 1 in on all sides

but...

since there's gaps its more likely that there a 1/2 in or 3/4 in

Step-by-step explanation:

12/12=1

3 0

3 years ago

Read 2 more answers

Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well

laiz [17]

Answer:

The value is $P(A) = 0.133617$

Step-by-step explanation:

From the question we are told that

The mean is $\mu = 7.5$

The standard deviation is $\sigma = 0.2$

The safest water level is between 7.2 and 7.8

Generally the probability that the selected pool has a pH level that is not considered safe is mathematically represented as

$P(A) = 1 - P(7.2 \le X \le 7.8 )$

Here

$P(7.2 < X < 7.8 ) = P(\frac{ 7.2 - \mu }{\sigma } < \frac{X - \mu }{ \sigma }$

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

$P(7.2 < X < 7.8 ) = P(\frac{ 7.2 - 7.5 }{0.2 } < Z$

$P(7.2 < X < 7.8 ) = P(-1.5 < Z$

=> $P(7.2 < X < 7.8 ) = P(Z < 1.5) - P( Z < - 1.5)$

From the z-table the probability of (Z < -1.5) and ( Z <1.5) are

$P(Z < 1.5) = 0.93319$

and

$P(Z < -1.5) = 0.066807$

$P(7.2 < X < 7.8 ) =0.93319 - 0.066807$

$P(7.2 < X < 7.8 ) =0.0866383$

$P(A) = 1 - 0.0866383$

=> $P(A) = 0.133617$

5 0

3 years ago