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2 years ago

Specialty tshirts are being sold for $30.........

Mathematics

1 answer:

kaheart [24]2 years ago

3 0

Equal out the shirts so that u can know what U are doing

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A professor pays 25 cents for each blackboard error made in lecture to the student who pointsout the error. In a career ofnyears

arsen [322]

Answer:

The correct answer is "0.0000039110".

Step-by-step explanation:

The given values are:

$Y_n\rightarrow N(\mu, \sigma^2)$

$\mu = 40n$

$\sigma^2=100n$

$n=20$

then,

The required probability will be:

= $P(Y_{20}>1000)$

= $P(\frac{Y_{20}-\mu}{\sigma} >\frac{1000-40\times 20}{\sqrt{100\times 20} } )$

= $P(Z>\frac{1000-800}{44.7214} )$

= $P(Z>\frac{200}{44.7214} )$

= $P(Z>4.47)$

By using the table, we get

= $0.0000039110$

6 0

2 years ago

2 divided by what times what equals 7

g100num [7]

Answer:

Step-by-step explanation:

I answer for what I understand, the question is not clear.

2 divided by what times what equals 7

2 : x = 7

x = -2/-7

x = 2/7

-------------

check

2 : 2/7 = 7

2 * 7/2 = 7

7 = 7

the answer is good

5 0

2 years ago

at silver gym membrship is 25$ per month and personal training sessions are thirty dollars each.At fit factor membership is 65$

NARA [144]

25+30x=65+20x
30x=40+20x
10x=40
x=40/10
x=4

x is for the number of sessions

ANSWER: 4 sessions
It will cost 145$ for both gyms after 4 sessions.

3 0

3 years ago

Read 2 more answers

an arts academy requires there to be 3 teachers for every 75 students and 6 tutors for every 72 students. How many students does

Zinaida [17]

Each teacher has 25 students. 75/3 would be 25. I hope this helped!

5 0

3 years ago

Julie takes her kids to a playground that has the shape shown. A. While her kids are playing, Julie wants to get some exercise.

Leona [35]

Answer:

a.) Total distance Julie cover = 128 feet

b.) Total area , the playground cover = 256 ft²

Step-by-step explanation:

P. S : The exact question is -

As given,

Length of 1 side = 16 feet

As , we have

4 sides of same length

⇒ Total length of playground = 16 + 16 + 16 + 16 = 16(4) = 64 feet

a.)

As given Julie does 2 lap of the playground

⇒ Total distance Julie cover = 64 + 64 = 128 feet

b.)

As the playground has equal side, so it must be of square shape

And, we know

Area of square = (Length of one side)²

= ( 16 )² = 256 ft²

∴ we get

Total area , the playground cover = 256 ft²

5 0

2 years ago