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ANTONII [103]
4 years ago
6

Marta has a lower probability of winning than Elena has. Which could be the outcome that Marta needs to win the game? Select thr

ee options. rolling a sum of 7 rolling a sum of 6 rolling a sum of 2 or a sum of 9 rolling a sum that is greater than 9 rolling a sum that is greater than 2 but less than 5?
Mathematics
1 answer:
HACTEHA [7]4 years ago
4 0

Answer:

rolling a sum of 7

rolling a sum of 6

rolling a sum that is greater than 2 but less than 5

Step-by-step explanation:

There are 6 possible combination out of 36 that will result in Martha winning the game. First roll have to be even, so its: 2, 4, 6. Second roll have to be less than 3 so its: 1, 2. The combination will be:

(2, 1)= sum 3

(2, 2)= sum 4

(4, 1)= sum 5

(4, 2)= sum 6

(6, 1)= sum 7

(6, 2)= sum 8

If you look at the sum, Marta can only win if the sum is between three and eight inclusive. If the sum is less than three or higher than eight then its impossible for Marta to win.

The third option is wrong, Marta can't win when the sum is 2 (less than three) or 9(higher than eight) since both sum is not possible.

Fourth option is wrong, highest sum Marta can get is eight.

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lapo4ka [179]

Answer:

9. n=-15 , 10. f=6, sorry i can't help you more I am just tired and have to get some rest but i hope this helps

Step-by-step explanation:

9. Eight less than 1/3 a number n is -13

so -13 = 1/3n -8

then

-5 = 1/3n

multiply 3 to each side

-15 = n

10. a number f multiplied by -12.3 is -73.8

so -12.3f= -73.8

divide -12.3 on each side

so f=6

4 0
3 years ago
All need to be checked. If you cant see the attachments plz wait
xxTIMURxx [149]

Answer:

Yup! I think they are all correct from my standpoint.

Step-by-step explanation:

8 0
3 years ago
Solve -r/4 &lt; 8         <br>A.r&lt;-32<br> B. r. &gt;-32<br> C.r &lt; -2<br><br>D.r&gt;-2
Gnom [1K]
\frac{-r}{4}

Ans.\ B


4 0
4 years ago
A tree measured 40 1/2 feet tall. Over the next 7 1/2 years, it grew to a height of 57 feet. During the 7 1/2 years, what was th
Elenna [48]
The average yearly growth rate of the height of the tree was 2.2 feet per year during the 7 1/2 years.
3 0
4 years ago
Prove that sin^2A/cos^2A + cos^2A/sin^2A = 1/cos^2A*sin^2A - 2
jenyasd209 [6]

Answer:

prove that:

Sin²A/Cos²A + Cos²A/Sin²A = 1/Cos²A Sin²A - 2

LHS = \frac{Sin^2A}{Cos^2A} + \frac{Cos^2A}{Sin^2A}

Cos

2

A

Sin

2

A

+

Sin

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A

Cos

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A

= \begin{lgathered}= \frac{Sin^4A + Cos^4A}{Cos^2A . Sin^2A}\\\\Using\: a^2 + b^2 = (a+b)^2 - 2ab\\\\a = Cos^2A \: \& \:b = Sin^2A\\\\= \frac{(Sin^2A + Cos^2A)^2 - 2Sin^2A Cos^2A}{Cos^2A Sin^2A} \\\\Sin^2A + Cos^2A = 1\\\\= \frac{1 -2Sin^2A Cos^2A}{Cos^2A Sin^2A}\end{lgathered}

=

Cos

2

A.Sin

2

A

Sin

4

A+Cos

4

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Usinga

2

+b

2

=(a+b)

2

−2ab

a=Cos

2

A&b=Sin

2

A

=

Cos

2

ASin

2

A

(Sin

2

A+Cos

2

A)

2

−2Sin

2

ACos

2

A

Sin

2

A+Cos

2

A=1

=

Cos

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ASin

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1−2Sin

2

ACos

2

A

\begin{lgathered}= \frac{1}{Cos^2A Sin^2A} - 2\\\\= RHS\end{lgathered}

=

Cos

2

ASin

2

A

1

−2

=RHS

LHS=RHS

4 0
3 years ago
Read 2 more answers
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