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Licemer1 [7]
3 years ago
12

I need help on number 6 please

Mathematics
1 answer:
Gennadij [26K]3 years ago
3 0

Answer:

The full answer is in the media.Good luck!

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Please explain whether it's true or false? Thanks
svlad2 [7]
15. true 16. false in my coculations.
7 0
3 years ago
Suppose the height of an 18 year old boy is normally distributed with mean 187cm fifteen percent of 18 year old boys have height
BARSIC [14]

Answer:

the probability that two 18 year old boys chosen at random will have heights greater than 185cm is 0.403

Step-by-step explanation:

P( x > 193) = 0.15

= 1- p(x less than or equal 193)

= 1 -p( z < (x- u) /sigma)

= 1- p( z< (193 - 187)/ sigma)

= 1- p( z< 6/ sigma)

P(z< 6/sigma) = 1 - 0.15

P(z < 6/sigma)= 0.85

6/sigma =1.036

Sigma= 6/1.036

Sigma= 5.79

P( x> 185) = 1- p( x< 185)

= 1- p (z < (185- 187)/5.79)

= 1- p( z< -0.345)

= 1- 0.365

= 0.635

P (x> 185) = 0.635 × 0.635

=0.403

3 0
3 years ago
IS IT JUST ME OR FOR RSM I CANT COPY AND PASTE ANYMORE HELLPPP I NEED TO KNOWWWW
Karo-lina-s [1.5K]

Answer:

i can;t copy or paste either bro

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
1-4y^2 = 0<br> Solve the equation
Romashka [77]

Answer: y = 1/2 or y = -1/2

Step-by-step explanation:

First move the 1 to the side with the 0

-4y^2 = -1 // -1 because when you move a number to the other side of the equation  you have to multiply -1

Then divide by -4 on each side

y^2 = 1/4

square root each side

|y| = 1/2 // sq rt y^2 becomes an absolute value because when you square root a square it automatically becomes an absolute value

so the answer would be y = 1/2 or -1/2

to check just put it into the equation as y. Both work.

4 0
2 years ago
Read 2 more answers
Help me with my algebra homework 1/4
Margaret [11]

Answer:

1) 24         2) $2 per pencil         3) 23        4) 15    5) $5 per eraser

6) 37        7) 16                            8) $16

Step-by-step explanation:

hope this helps

5 0
3 years ago
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