3 years ago

HELP ME I REALLY NEED THIS!!!

Mathematics

1 answer:

marysya [2.9K]3 years ago

7 0

2+1× y =? Y=the number of weeks

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Pls help me with this text thing i need the answers :O PLS I NEED IT NOW HELP

Radda [10]

Answer:

1. d.9

Step-by-step explanation:

that is the only one I know sorry

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2 years ago

assume that when adults with smartphones are randomly selected, 44% use them in meetings or classes. If 10 adult smartphones use

tensa zangetsu [6.8K]

Solution: The given random experiment follows Binomial distribution with $n=10,p=0.44$

Let $X$ be the number of adults who use their smartphones in meetings or classes.

Therefore, we have to find:

$P(X$

We know the binomial model is:

$P(X=x)=\binom{n}{x} p^{x} (1-p)^{n-x}$

$\therefore P(X$

$=\binom{10}{0}0.44^{0}(1-0.44)^{12-0}+\binom{10}{1}0.44^{1}(1-0.44)^{10-1}+\binom{10}{2}0.44^{2}(1-0.44)^{10-2}$

$=1 \times 1 \times 0.0030 + 10 \times 0.44 \times 0.0054 + 45 \times 0.1936 \times 0.009672$

$=0.0030+0.0238+0.0843$

$=0.1111$

Therefore, the probability that fewer than 3 of them is 0.1111

7 0

3 years ago

Regroup tens as hundreds

Andrew [12]

35 tens

tens = 10 ones = 0.1 hundreds

35 tens = 350 ones = 3.5 hundreds

So 35 tens = 3.5 hundreds

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3 years ago

Is 3pi/4pi a rational number?

Natali5045456 [20]

Answer:No

Step-by-step explanation:

Pi is irrational

4 0

2 years ago

Can anyone help? i suck at math lol

aleksley [76]

Answer:16384

Step-by-step explanation:

4*4*4*4+4*4*4

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2 years ago