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IceJOKER [234]
3 years ago
14

Due tomorrow *work is appreciated but not required*

Mathematics
1 answer:
DerKrebs [107]3 years ago
8 0
Number 1 is A. 
Number 6 is C.
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BRAINLIEST +STARSS!!!
yulyashka [42]

Answer:

The green would take 4 and the blue would take 16 times respectivly.  I did it by finding the volumes of the cups in terms of pi, then dividing it by the volume of the sink.

Step-by-step explanation:

So the volume of the whole half sphere is 512pi.

Now we have to find the volumes of the cup.

Equation: \pi r^2h

Blue cup:

\pi 2^2(8)\\\pi 4(8)\\\pi 32

It would take 16 times to drain it completly.

Green cup:

\pi 4^2(8)\\\pi 16(8)\\\pi 128

It would take 4 times to drain it completly.

6 0
2 years ago
How do you do these questions?
Tanzania [10]

Answer:

μ ≈ 2.33

σ ≈ 1.25

Step-by-step explanation:

Each person has equal probability of ⅓.

\left[\begin{array}{cc}X&P(X)\\1&\frac{1}{3}\\2&\frac{1}{3}\\4&\frac{1}{3}\end{array}\right]

The mean is the expected value:

μ = E(X) = ∑ X P(X)

μ = (1) (⅓) + (2) (⅓) + (4) (⅓)

μ = ⁷/₃

The standard deviation is:

σ² = ∑ (X−μ)² P(X)

σ² = (1 − ⁷/₃)² (⅓) + (2 − ⁷/₃)² (⅓) + (4 − ⁷/₃)² (⅓)

σ² = ¹⁴/₉

σ ≈ 1.25

3 0
3 years ago
Can someone please help me with this problem, it is really confusing
levacccp [35]
Answer =-0.7x +0

Find the gradient by y2-y1/x2-x1
-14 -7/ 20- -10
-21/30
-0.7
And plug in the coordinates to find the y intercept
7= -0.7 (-10) + c
C=0
4 0
2 years ago
What is the y in 10.3=0.6y
ollegr [7]
Hello, you would divide 10.3 by 0.6 to get 17.166 repeating. So y equals 17.166.

6 0
3 years ago
I need help with this for math,
liraira [26]
4. por.
5. non.
6. por.
7. non.
i hope they all right.

4 0
2 years ago
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