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Romashka [77]
3 years ago
5

The experimental probability of getting a 6 on a number cube is StartFraction 7 over 40 EndFraction. Which is true about the eve

nt’s experimental probability? The number 6 came up a total of 40 times. The number 6 came up 7 times out of a total of 40 trials. The number cube was rolled a total of 47 times. After 7 trials, the number 6 came up 40 times.
Mathematics
2 answers:
Ivahew [28]3 years ago
8 0

Answer:it’s A

Step-by-step explanation: I took the test

Svetradugi [14.3K]3 years ago
7 0

Answer:

The number 6 came up 7 times out of a total of 40 trials.

Step-by-step explanation:

took the test

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f(x)=2x^2+3x-4 \\ \\f(\sqrt{2})=2 \cdot (\sqrt{2})^2+3 \cdot \sqrt{2}-4 = 2\cdot 2+3\sqrt{2}-4=4+3\sqrt{2}-4=3\sqrt{2}


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(Max Points) Do not answer if you’re not 100% sure. I’ll report if wrong.
scoray [572]

Answer:

B

Step-by-step explanation:

Rocco:  of the job per hour

Giulia:  of the job per hour

Together:  of the job per hour

Rocco + Giulia = Together

\frac{1}{7} +\frac{1}{x} =\frac{1}{3}

\frac{1}{7} (21x)+\frac{1}{x}(21x) =\frac{1}{3}(21x)

3x + 21 = 7x

       21 = 4x

x=\frac{21}{4}

It will take Giulia\frac{21}{4} =5\frac{1}{5}hours to paint the room by herself.

⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋⪋

Giulia:r= \frac{1}{x} =\frac{4}{21\\}

B)\frac{3}{7} +3(\frac{4}{21})=1

\frac{3}{7}  +\frac{4}{7} =1

\frac{7}{7} =1

1=1

so it's true

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\\ \sf\longmapsto 5x+5+4x-5=180

\\ \sf\longmapsto 5x+4x+5-5=180

\\ \sf\longmapsto 9x=180

\\ \sf\longmapsto x=\dfrac{180}{9}

\\ \sf\longmapsto x=20

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2 years ago
Question 2
pogonyaev

Answer:

Do you have a picture of the question

Step-by-step explanation:

It’ll help me understand it better

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What is the cube of the quotient of 24 and 6
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The cube of quotient is 24 and 6 is 4
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