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dangina [55]
3 years ago
13

You have 10 batteries sitting on your desk, three of which are dead. You choose 2 batteries are random for you calculator. What

is the expected number of good batteries that you get?
Mathematics
2 answers:
AnnyKZ [126]3 years ago
6 0
You have 10 batteries 3/10 are dead there are only 7/10 batteries that are good. So the expected number of good batteries you could get is 7.
stepladder [879]3 years ago
6 0

Answer:

1.4

Step-by-step explanation:

on usatestprep

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Steven converted $1,000 to ×105,000 for a trip to Japan. However, he spent only ×50,000. During this period, the value of the do
Mariulka [41]

Answer:

E

Step-by-step explanation:

We were told Steven spent an amount of 50,000. Although the value of the dollar against the yen has changed. So therefore, to calculate the amount of money he spent, we would be needing to divide the amount he spent over the present exchange rate of the dollars to yen.

We then divide the 50,000 by 100 and that equals $500.

Hence, the amount of money spent by Steven is simply $500

5 0
3 years ago
Find three ratios that are equivalent to 2 4. A. 8 16 B. 10 24 C. 4 8 D. 3 5 E. 6 12 F. 12 6
xenn [34]

Answer:

A, C, and E good luck

Step-by-step explanation:

3 0
2 years ago
What is 11.375 in faction
Anton [14]
11 3/8 would be the simplified version and 91/8 would be the other way.
6 0
3 years ago
Read 2 more answers
Here’s a polygon:
kozerog [31]

Answer

IJKL & EFGH

<h3>Step-by-step explanation:</h3><h3>IJKL & EFGH are similar because they are the same.</h3>
7 0
2 years ago
What is the sum of 4.9 × 102 and 6.8 × 103?
dusya [7]

Answer:

The sum is

7.92\times 10^3

Step-by-step explanation:

We want to add

4.9\times 10^2 and 6.8\times 10^3

The sum of these two numbers is:

4.9\times 10^2 +6.8\times 10^3

This is the same as:

4.9\times 100 +6.8\times 1000

490 +6800=7290

We rewrite 7290 in standard form to get;

7.92\times 10^3

6 0
3 years ago
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