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3 years ago

Need help with this problem it’s edg 2020

Mathematics

2 answers:

RSB [31]3 years ago

6 0

Answer - First one

Because the orange lie is on 7.

Vlad1618 [11]3 years ago

4 0

The first one sorry if I’m wrong

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I’ll give brainliest to whoever can do this

tino4ka555 [31]

i forgot hiw to do that

Step-by-step explanation:

8 0

3 years ago

Number of passengers who arrive at the platform in an amtrack train station for the 2 pm train on a saturday is a random variabl

alexgriva [62]

Assuming a normal distribution we find the standardized z scores for a:-

z1 = (80 - 180) / 25 = = -100/25 = -4
z2 = (280-180) / 25 = 4
Required P( -4 < z < 4) from the tables is >99.9%

b
z1 = 130-180 / 25 = -2
z2 = 230-180 / 25 = 2

from tables probability is 2* 0.4773 = 95.46 %

8 0

3 years ago

The projected T. rex is about

dolphi86 [110]

Answer: $scale\ factor=230$

Step-by-step explanation:

You need to analize all the information given in the exercise.

You know that the actual height of the T-rex on the projector lens is the following:

$actual\ height=2\ cm$

The height of the projected T-rex is:

$projected\ height=4.6\ m$

Make the conversion from meters to centimeters:

$projected\ heigth=(4.6\ m)(\frac{100\ cm}{1\ m})\\\\projected\ heigth= 460\ cm$

Therefore, the scale factor will be:

$scale\ factor=\frac{projected\ heigth}{actual\ heigth}$

Finally, you must substitute values into the equation and then you must evaluate in order to find the scale factor of the projection. You get that this is:

$scale\ factor=\frac{460\ cm}{2\ cm}\\\\scale\ factor=230$

7 0

3 years ago

Circumference and Area of Circles

yanalaym [24]

Step-by-step explanation:

Area of a circle = #r^2

1256 = 3.14 × r^2

r^2 = 1256/3.14

r^2 = 400

Square root of r = 20

Diameter = 2 × r = 2 × 20 = 40 inches

8 0

3 years ago

Please help me its due in 5 minutes

STALIN [3.7K]

Answer:

90.09 m

Step-by-step explanation:

47.5 * 3.3 /1.74 = 90.09

3 0

3 years ago