1 year ago

What is the avrege of 4 1/2 3 1/3 2 and 2 1/6

Mathematics

1 answer:

Goryan [66]1 year ago

7 0

2.4 should be your answer

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Sam's bank account balance on Monday was $8. On Tuesday, his account balance was -$2. How much money did Sam withdraw from his a

ss7ja [257]

It would be 8. To solve, look at it like this: 8-b=(-2). I would then look at a number line or create one if your not to sure of yourself. 8-8=0, and then 0-2=-2. 2+8=10 (the numbers you subtracted). So the answer is 10.

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2 years ago

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Please help me please I’m begging you this is an assessment grade

Vladimir79 [104]

Answer:

-2 , 4

Step-by-step explanation:

-2 + 4 = -2

-2 * 4 = -8

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2 years ago

What is the midpoint of the vertical line segment graphed below? (2,4) (2,-9)

ruslelena [56]

You can use the formula x2-x1 over y2-y1

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2 years ago

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In general, the probability that a blood donor has Type A blood is 0.40.Consider 8 randomly chosen blood donors, what is the pro

postnew [5]

Answer:

The probability that more than half of them have Type A blood in the sample of 8 randomly chosen donors is P(X>4)=0.1738.

Step-by-step explanation:

This can be modeled as a binomial random variable with n=8 and p=0.4.

The probability that k individuals in the sample have Type A blood can be calculated as:

$P(x=k) = \dbinom{n}{k} p^{k}(1-p)^{n-k}\\\\\\P(x=k) = \dbinom{8}{k} 0.4^{k} 0.6^{8-k}\\\\\\$

Then, we can calculate the probability that more than 8/2=4 have Type A blood as:

$P(X>4)=P(X=5)+P(X=6)+P(X=7)+P(X=8)\\\\\\P(x=5) = \dbinom{8}{5} p^{5}(1-p)^{3}=56*0.0102*0.216=0.1239\\\\\\P(x=6) = \dbinom{8}{6} p^{6}(1-p)^{2}=28*0.0041*0.36=0.0413\\\\\\P(x=7) = \dbinom{8}{7} p^{7}(1-p)^{1}=8*0.0016*0.6=0.0079\\\\\\P(x=8) = \dbinom{8}{8} p^{8}(1-p)^{0}=1*0.0007*1=0.0007\\\\\\\\P(X>4)=0.1239+0.0413+0.0079+0.0007=0.1738$

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2 years ago

Wath the square root of 12

Alla [95]

Hi! Your answer is:

√12 = approximately 3.4641

Also, the answer could be 2√3

Hope this helps!

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2 years ago

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