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3 years ago

Help meeeeeeeeeeplease

Mathematics

2 answers:

bekas [8.4K]3 years ago

8 0

Answer:

The answer is 8/5. Hope you do great!:)

Step-by-step explanation:

bogdanovich [222]3 years ago

7 0

20111193857248668228

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PLZZZ HELP!

Helga [31]

bought for $180000 in 2002

sold it in 2014

180000*2.44\100

8 0

3 years ago

If the average yield of cucumber acre is 800 kg, with a variance 1600 kg, and that the amount of the cucumber follows the normal

lorasvet [3.4K]

Answer:

The percentage is

$P(x_1 < X < x_2 ) = 51.1 \%$

The probability is $P(Z > 2.5 ) = 0.0062097$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 800$

The variance is $var(x) = 1600 \ kg$

The range consider is $x_1 = 778 \ kg \ x_2 = 834 \ kg$

The value consider in second question is $x = 900 \ kg$

Generally the standard deviation is mathematically represented as

$\sigma = \sqrt{var (x)}$

substituting value

$\sigma = \sqrt{1600}$

$\sigma = 40$

The percentage of a cucumber give the crop amount between 778 and 834 kg is mathematically represented as

$P(x_1 < X < x_2 ) = P( \frac{x_1 - \mu }{\sigma} < \frac{X - \mu }{ \sigma } < \frac{x_2 - \mu }{\sigma } )$

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

$P(x_1 < X < x_2 ) = P( \frac{778 - 800 }{40} < Z< \frac{834 - 800 }{40 } )$

$P(x_1 < X < x_2 ) = P(z_2 < 0.85) - P(z_1 < -0.55)$

From the z-table the value for $P(z_1 < 0.85) = 0.80234$

and $P(z_1 < -0.55) = 0.29116$

$P(x_1 < X < x_2 ) = 0.80234 - 0.29116$

$P(x_1 < X < x_2 ) = 0.51118$

The percentage is

$P(x_1 < X < x_2 ) = 51.1 \%$

The probability of cucumber give the crop exceed 900 kg is mathematically represented as

$P(X > x ) = P(\frac{X - \mu }{\sigma } > \frac{x - \mu }{\sigma } )$

substituting values

$P(X > x ) = P( \frac{X - \mu }{\sigma } >\frac{900 - 800 }{40 } )$

$P(X > x ) = P(Z >2.5 )$

From the z-table the value for $P(Z > 2.5 ) = 0.0062097$

7 0

3 years ago

A pack with 6 cans of juice costs 3.48. What it the unit price?

nevsk [136]

3.48/6 = 0.58 per can

3 0

3 years ago

48% de 8,4===============

Fofino [41]

Answer: 4,032

Step-by-step explanation:

8,4 x 0,48 = 4,032

3 0

3 years ago

What is f if the equation is -3/4f=5/4?

Lilit [14]

Answer:

Exact Form:

f=-5/3

Decimal Form:

f= -1.6

Mixed Number form:

f= -1 2/3

Step-by-step explanation:

Solve for f by simplifying both sides of the equation , then isolating the variable .

Exact Form:

f=-5/3

Decimal Form:

f= -1.6

Mixed Number form:

f= -1 2/3

8 0

3 years ago