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Alexus [3.1K]
2 years ago
6

The answer to a division problem in David's homework was 12. Which of the following expressions might he have solved? Select ALL

that apply.
A.
410÷45
B.
34÷23
C.
39÷23
D.
714÷77
E.
23÷412
F.
413÷67
Mathematics
2 answers:
emmainna [20.7K]2 years ago
4 0
None of those equal 12?
alukav5142 [94]2 years ago
3 0
None of those equal 12. Answers below are rounded.

A= 9.11
B= 1.48
C=1.70
D= 9.27
E= 0.06
F=6.16

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Answer:

  24x

Step-by-step explanation:

The total length of all vertical segments is 5x·2 = 10x.

The total length of all horizontal segments is (3x+4x)·2 = 14x.

Then the total length of all perimeter segments is ...

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2 years ago
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mrs_skeptik [129]
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A fair die is rolled 10 times. Find the expected value of:a) the sum of the numbers in the ten rolls;b) the number of multiples
velikii [3]

Answer:

a) 3.5

b) 3.33

c) 6 - 6\left(\begin{array}{ccc}5\\6\end{array}\right)^{10}

Step-by-step explanation:

As given,

A fair die is rolled 10 times

a)

Expected value of Sum of the number in 10 rolls = \frac{1}{6}(1+2+3+4+5+6) = \frac{21}{6}

                                                                                = 3.5

∴ we get

Expected value of Sum of the number in 10 rolls = 3.5

b)

Ley Y : number of multiples of 3

Y be Binomial

Y - B(n = 10, p = \frac{2}{6} )

Now,

Expected value = E(Y) = np = 10×\frac{2}{6}  = 3.33

c)

Let m = total number of faces in a die

⇒m = 6

As die is roll 10 times

⇒n = 10

Now,

Let Y = number of different faces appears

Now,

Expected value, E(Y) = m - m\left(\begin{array}{ccc}m-1\\m\end{array}\right)^{n}

                                  = 6 - 6\left(\begin{array}{ccc}6-1\\6\end{array}\right)^{10} = 6 - 6\left(\begin{array}{ccc}5\\6\end{array}\right)^{10}

5 0
2 years ago
One hundred people were surveyed about their preference. They had to choose between french toast and pancakes and between sausag
77julia77 [94]

Answer:

1.27/50

2.3/4

3.31/100

4.25/46

5.25/48

I know this because I got them right when I took the quiz



Step-by-step explanation:


8 0
2 years ago
Read 2 more answers
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AnnZ [28]

Answer:

The answer is t>0

Step-by-step explanation:

Let's solve your inequality step-by-step.

−2<3t−2

Step 1: Flip the equation.

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Step 2: Add 2 to both sides.

3t−2+2>−2+2

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Step 3: Divide both sides by 3.

3t /3 > 0/3

<em><u>t>0 </u></em>

6 0
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