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ExtremeBDS [4]
3 years ago
15

How can i use doubles when multiplying with 4 to find 4x8?

Mathematics
1 answer:
aev [14]3 years ago
5 0
32 because y times 4 8 times
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Mr. Clark claims that he has a coin that is weighted so that the probability of heads is 40%. To test this, his students flip th
Brrunno [24]
While I'm unsure what the word choices were, his claim is likely to be true. 

Since he claims the probability of heads is 40%, that should be what we see in an experiment.  0.38 is very close to 0.40, or 40%, so this is true.  Therefore his claim is likely to be true, and the probability of tails should be about 60%.
5 0
3 years ago
If f(1) = 160 and f(n + 1) = –2f(n), what is f(4)?
lions [1.4K]

Answer:

-1280

Step-by-step explanation:

There are 2 ways you could do this. You could just do the question until you come to the end of f(4). That is likely the simplest way to do it.

f(1) = 160

f(2) = - 2 * f(1)

f(2) = -2*160

f(2) = -320

f(3) = -2 * f(2)

f(3) = -2 * - 320

f(3) = 640

f(4) = - 2 * f(3)

f(4) = - 2 * 640

f(4) = - 1280

I don't know that you could do this explicitly with any real confidence.

5 0
3 years ago
Read 2 more answers
Need help homies, no steps needed
VashaNatasha [74]

Answer:

12 have a good day

Step-by-step explanation:

4 0
3 years ago
Tarana mailed 20 greetings cards. 9 of them were mailed to USA. What percentage of the cards were mailed to USA?
Elza [17]

Answer:

45%

Step-by-step explanation:

9/20=0.45 (Divide it first), 45/100=45% (45/100 because 100 makes 1 whole -all 20 cards-)

7 0
3 years ago
The temperature in montral was -8 degrees celsius. In new york the temperature was 11 degrees celsius. How many degrees warmer w
yulyashka [42]

Answer

-19

Step-by-step explanation:

AS  WE NEED TO FIND THE DIFF SO -8-11=-19

3 0
3 years ago
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