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3 years ago

PLEASE HELP ME AT LEAST ONE OF THESE IF YOU KNOW

Mathematics

2 answers:

tangare [24]3 years ago

4 0

Step-by-step explanation:

answer of number 5

length=7cm

breadth=9 cm

height=6 cm

volume=?

we know

v =l×b×h

=7×9×6

=378

so, the volume is 378 cm

KatRina [158]3 years ago

3 0

Answer:

cone, radius is 3^2 x pi x 7/3 = 65.98

Step-by-step explanation:

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According to a study done by De Anza students, the height for Asian adult males is normally distributed with an average of 66 in

Zolol [24]

Answer:

The probability that the person is between 65 and 69 inches is 0.5403

Step-by-step explanation:

Mean height = $\mu = 66$

Standard deviation = $\sigma = 2.5$

We are supposed to find What is the probability that the person is between 65 and 69 inches i.e.P(65<x<69)

$Z=\frac{x-\mu}{\sigma}$

At x = 65

$Z=\frac{65-66}{2.5}$

Z=-0.4

Refer the z table for p value

P(x<65)=0.3446

At x = 69

$Z=\frac{69-66}{2.5}$

Z=1.2

P(x<69)=0.8849

So,P(65<x<69)=P(x<69)-P(x<65)=0.8849-0.3446=0.5403

Hence the probability that the person is between 65 and 69 inches is 0.5403

6 0

3 years ago

What is the constant of proportionality in the equation y=2.5xy=2.5xy, equals, 2, point, 5, x?

Lera25 [3.4K]

...........................

5 0

3 years ago

Read 2 more answers

NEED HELP ASAP!!!! PLEASE!!! Explain the answer!!

xz_007 [3.2K]

She is wrong because she did the square root of 25 multiplied by 2, she should have just done the square root of 50.

For the second part the square root of 50 is 7.07 which rounding would equal 7.1.

Hope this helps.(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

4 0

3 years ago

A student pulls a box of mass 5 kg with a force of

klemol [59]

Answer:

50j

Step-by-step explanation:

workdone = force x distance

workdone = 20x2.5

50j

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