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astraxan [27]
3 years ago
9

What is the mean? -1 -1 -4 -5 -4 -4 -7 -8

Mathematics
1 answer:
vlabodo [156]3 years ago
3 0

Answer:

Nagative numbers(numbers smaller than 0)

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Two dice are rolled. Determine the probability of the following: rolling a 6 or doubles
gtnhenbr [62]

Answer as an exact fraction = 5/18

Answer as an approximate decimal = 0.2778

Answer as an approximate percentage = 27.78%

============================================================

Explanation:

x = result of the first die

y = result of the second die

(x,y) paired together shows the results of both dice at the same time.

Something like (x,y) = (4,2) means we got 4 on the first die and 2 on the second die.

--------

Let's list the ways of rolling a 6

  • (1,5)
  • (2,4)
  • (3,3)
  • (4,2)
  • (5,1)

There are 5 ways to roll a 6. Each pair listed has the property x+y = 6.

--------

List all the ways of getting doubles

  • (1,1)
  • (2,2)
  • (3,3)
  • (4,4)
  • (5,5)
  • (6,6)

There are 6 ways to roll doubles. Each pair mentioned has x = y.

--------

We have 5+6 = 11 items listed above. However, there are only 10 unique pairs though because (3,3) was listed twice. So we could say 5+6-1 = 11-1 = 10.

This is out of 6*6 = 36 different ways to roll the two dice. The probability is therefore 10/36 = 5/18.

Using a calculator, 5/18 = 0.2778 = 27.78%

7 0
3 years ago
How many times does seven go into three hundred ninety four
Nookie1986 [14]

Answer: 56 times.

Step-by-step explanation:

394/7 = 56.3

56 * 7 = 392

392 + 7 = 399

399 is more than 394, therefore the answer is 56.

6 0
3 years ago
Read 2 more answers
State the two quantities that are being compared in each rate. Then calculate the equivalent unit rate.
stealth61 [152]
101.25 dollars are being compared to 9 hours. The unit rate is 11.25 dollars
6 0
3 years ago
What is the 30°-60°-right triangle theorem?
kondaur [170]
<span>the 30°-60°-right triangle theorem states that the 
</span>In a right triangle, the hypotenuse is twice as long as a leg if and only if the measure of the
<span>angle opposite that leg is 30°
so the option C is correct from above all
</span>see the figure
hope it helps

4 0
3 years ago
Thanks in advance for the answer
soldier1979 [14.2K]
2^{-2} =  \frac{1}{2^{2}} = \frac{1}{4} &#10;

does this make sense to you? Do you have any questions about raising numbers to a negative value?
5 0
3 years ago
Read 2 more answers
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