3 years ago

Can u help me with 2/3/4 I didn't understand

2 answers:

8 0

You have to fraw sticks as the 10's for example #2 prtend thise are the sticks.(I)
IIII 4 tens in 42 the circles as ones O O SO,IIII00

lions [1.4K]3 years ago

7 0

Don't really understand what you want help from

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Valerie shares some of the 12 candies from this box.she gives her friend 1 candy for every 3 candies she eats herself. How many

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Answer:

Step-by-step explanation:

Every group of candies eaten is 4 candies because Valerie eats 3 and her friend eats 1. 1+3 = 4 . 12/4 = 3

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3 years ago

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3) A tour trolley covers a distance of 8.5 miles in of an hour.

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Answer:

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b) Ans: 46.75 miles

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3 years ago

cual de dos amigo come más pizza:el que come la cinco sextas partes de la mitad de pizza,o el que come las tres cuartas partes d

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Step-by-step explanation:

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3 years ago

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:

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

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

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

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

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By using the table, we get

= $0.0000039110$

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3 years ago