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Svetlanka [38]
3 years ago
15

Write 8867 to 2 significant figuresI can't remember how to do this. ​

Mathematics
1 answer:
diamong [38]3 years ago
8 0
The answer would be 8900
Reason: when you round to 2 significant figures you are trying to reduce the number to 2 digits and the rest will become 0 to indicate a place value
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During a tropical storm, the temperature decreased from 84° to 63º. Find the percent decrease in temperature during the storm. (
kipiarov [429]

Answer:

b

Step-by-step explanation:

b is the answer

3 0
3 years ago
Two faces of a six-sided die are painted red, two are painted blue, and two are painted yellow. The die is rolled three times, a
Keith_Richards [23]

Answer:

(a) 4/9

(b) 19/27

Step-by-step explanation:

The probability of each die turning up red or not turning red are:

P(R) =\frac{2}{6}= \frac{1}{3}\\P(O) =\frac{4}{6}= \frac{2}{3}

(a). Exactly one face up is red.

The odds of only the first die being red are:

P(A=R) =\frac{1}{3} *\frac{2}{3}* \frac{2}{3} \\P(1=R) =\frac{4}{27}

The same odds are valid for only the second or only the third die being red. Therefore, the probability that exactly one die turns up red is:

P(R=1) = 3*\frac{4}{27}\\P(R=1) = \frac{4}{9}

(b). At least one face up is red.

The probability that at least one die turns up red is the sum of the probabilities of exactly one (found in the previous item), two or all dice turning up red.

Following the same logic as in the previous item, the probability that exactly two dice turn up red is:

P(R=2) = 3*(\frac{1}{3}*\frac{1}{3}*\frac{2}{3})\\P(R=2) = \frac{2}{9}

The probability that all die turn up red is:

P(R=3) = \frac{1}{3}*\frac{1}{3}*\frac{1}{3}\\P(R=3)=\frac{1}{27}

Thus, the probability that at least one die turns up red is:

P= P(R=1)+P(R=2)+P(R=3) = \frac{4}{9}+\frac{2}{9}+\frac{1}{27}\\P=\frac{19}{27}

4 0
3 years ago
Maggie has $14,100 to invest, and wishes to gain $4,000 in interest over the next eight years. Approximately what is the minimum
julsineya [31]
Simple interest doesn't compound, so we just find the interest she needs by dividing 4,000 by 8, and then divide that number by her principal to find the rate of interest. 

4,000 ÷ 8 = 500
She needs 500 dollars per year in interest. 

800 ÷ 14,100 = .0355 = 3.55%

Answer is B
3 0
3 years ago
A market has two check out lines. Let X be the number of customers at the express checkout line at a particular time of day. Let
weqwewe [10]
The thaily are not really bad but it’s just that a little bit too big and then I can do that lol but I’m just going outside and I’m going on the road right thanks for
4 0
3 years ago
H+p=4(k−7) for k please answer
dmitriy555 [2]

Answer:

(28 + h + p)/4 = k

Step-by-step explanation:

Step 1: Write equation

h + p = 4(k - 7)

Step 2: Solve for <em>k</em>

<u>Distribute 4:</u> h + p = 4k - 28

<u>Add 28 to both sides:</u> 28 + h + p = 4k

<u>Divide both sides by 4:</u> (28 + h + p)/4 = k

3 0
3 years ago
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